west of the westminster area. it is continuing to come to the south. it is showing a very slight amount of weakening over the last little radar scan or two. i don't want to forget about our friends in charles county. this storm is also still severe. charlie county, maryland, severe thunderstorm warning remains in effect for you. this storm has really lost its punch. headed toward gross town. this one here is falling apart a bit. still kneads to be taken seriously. still capable of producing some damaging winds. i'm sure that it is producing heavy rain as it is to the east of la plata. the good news, if you live there, these storm again, temporarily at least, i don't want to give you the all clear. wave severe thunderstorm watch. officially that goes until 9:00. >> i want to ask you if you could stlid radar down there toward the caroline county storm. it looks like the original tornado warning that was in effect until 5:15, i'm not seeing it picked up here. we told you we would give you the all clear. it is not an all clear but it does appear for the caroline county thunderstorm that they are continuing to warn for it. that would be good news but obviously, liberty fork, oak corner, toward there, you are definitely in some very heavy rain. dangerous lightning and we do want to you treat this seriously. it looks like the tornado warning has been lifted for that area. >> not a tornado potential so that's good news. it is a severe thunderstorm but it is falling apart. >> news, tate seriously. stay inside for the next little while. i did not want to forget our friends. clearly the big show in town at least for now is still up here into frederick county, maryland. we'll focus book this particular storm. put it book is mowing. go back over here toward putting the storm in motion so you can get a sense of the movement. the whole line of cells, the most intense which of has had quite a rotation signature on it for a long period of time. and it has not really shown too much in the way of weakening. it has weakened just a smidgeon. it will be capable of producing a tornado at any moment. we won't turn our back on this storm at all. you can see that just below the "w" in westminister, maryland. that shafd bright green is the most dangerous part of this particular storm. we'll zoom right back in on it and get you some town name to be on the lookout for. a storm just coming to the west of new windsor. woodsboro, maryland. walkersville, you're in the middle of it right now. mount airy, maryland, you need to be moving to a safe place. if you have friends or relatives out there that have gone out to play golf or out to the pool on a summer day, get everybody inside. immediately. this storm means business. it is almost certainly producing straight line wind damage. it has an enormous signature rotation. that is, that may be the next. the latest scan on the radar. it may have intensified a little more. that's now a 58-mile-an-hour wind on the one side of the storm. you translate this to the ground, we could easily be seeing 60 to 70-mile-an-hour straight line winds. this storm now is starting to look a lot more, that july 25th storm that knocked out power to some 300,000 people in montgomery county, this storm here now is about at the same level of strength and intensity. so this storm needs to be taken very seriously, everybody. lowest level of your home. stay away from your doors and windows. you folk who live in a mobile home to the north of damascus, southern south eastern parts of the county. if you live in a mobile hole, you need to get out of it. these thunderstorm are very capable of being kicked over by winds this strong. you don't want to be in a mobile home when that happens. be extremely careful. the rainfall rates have not been as intense here. that doesn't 19 storm is losing the punch. it just mean it is generating wind and rain. >> we've had an active sphere weather day. obviously this morning, we don't need to remind you. d.c., alexandria really got worked over. that's a severe thunderstorm watch. it goes until 9:00. the little red polygons, those are severe warnings. the focus has shifted to northern maryland. we have other a line of storm cross tow mason dixon line. they've had a history of producing three inches of rain in an hour. not that long nag harrisonburg. they've been just hovering around points north. this one here in mount airy, that's where we do have the tornado warning in effect. chuck has been rocking the doppler radar. we're not looking just at the rain. we've been looking at the couplets. that's winds coming toward the radar and win leaving the radar. when you have opposite wind directions. that's a sign of row taegs. those are the thing we're looking at. you're looking at the communicate in the path. we can pinpoint this down to a couple minutes. what do we have? >> kelly ridge, 5:07. bradford estates, 5:09. only a few minutes from now. right around the city of mount airy, maryland. so you need to be very cautious here over the next little bit. we've been talking about mount airy for the last little bit. that's where the worst part has arrived. right into mount airy. you can sort of see where this storm is dropping toward. there it is toward valley hill farms, mount airy, western parts of howard county. far northern and northeastern parts, you need to be moving to your place of safety. the warning for howard county and montgomeryñi county, that tornado warning continues until 5:15 officially. i have no reason the suspect that they will not reissue and extend tornado warning if you are down into montgomery county here. this storm looks like itñi may collapsing. i say that as a weather term. that doesn't mean it is losing intensity. sometime a collapsing storm is what generates the really intense straight line winds. we'll need watch this carefully evidence to next little bit. so that's probably almost on top of you at this point in time. as you get further down into the northern most parts of montgomery and far western howard county, cabin river farm, nursery view, mount airy, kitty hawk estates, stone lake. that's where you need to be taking this very seriously. we were talking about it a little while ago. look at the brightness of those greens. that is measuring 58-mile-an-hour winds up where that,hj]st to the east of valley hill farms. so that part of the storm will be arriving on interstate 70. i would say in the next five to ten minutes. you can see the intense winds collapsing toward unt state 70. we'll take the velocity out of there. mcdonald, woodville, silver fern estates, hampton knowles, this is getting the worst of it. as you get if you are to the south, mount airy, you're just about into the worst of it. that line going across. that's interstate 70. extending from new mark into parts of howard county. all of you people need to be moving to a place of safety right away. this storm continues to drop southeast at about 25 miles per hour. it has a long history of rotation. i've not heard any report. you may want to check the national weather service websites to see. sometimes it takes they've to 45 minutes before people come out from their bunkers, essentially, and start to report the severe weather. there is no doubt this is a very severe thunderstorm now. coming out of southeastern frederick county, headed into far northern montgomery county, the storm continues its track southeast bound at 15 to 25 miles per hour. it will probably stay to the northeast survived interstate 270. so north of gaithersburg. you folk over here, the north eastern part from damascus, above 270 here. cabin river farm, eagles loft, brighton pine, be on the lookout. that storm is probably about another 15 or 20 minutes away from you. the worst of it now is going right through new market, maryland. it is bearing down on kitty hawk estates, stone lake, mount airy, nurseryville. here's the are the places with the worst of it. turn your tv up as loud as you can and then move away from the living room into a small hall closet. a small bathroom. stay away from your doors and windows if at all possible. if you live in a mobile home, get out if you can. you will be safer in a low lying culvert or ditch. you will be safer there. i know you'll get wet and dirty but you do not want to be in your mobile home in a situation like this. perhaps stronger winds than that. we haven't been able to confirm and i don't want to overpromise. the wind is picking up 50 to 60-mile-an-hour winds aloft. these winds get travel down through the rain shaft. the rush of heavy rain, and again some of the rainfall rates out of these storm have been intense. at least one to two inches of rain per hour with some of these cells. and the ones further down to the south have had even heavier amounts than that. we'll widen it out and show you the big picture. washington county, we know that's north of hagerstown. we have someone with a weather instrument, an anemometer. measured a wind gust to 58 miles an hour. so again, there was no tornado warning in effect for that area. just a 73 thunderstorm warning. certainly a 58-mile-an-hour wind gust can do damage. and it is something to be reckoned with. all these storm have these same characteristic. the really gusty winds. some potential for rotation. and the heavy, heavy rain. again, we will but the history just across the border in pennsylvania. they were producing three inch an hour rainfall rates. we would like the watch the lightning that chuck is showing you. we can see how thunderstorm pulse. i used to be a tornado chaser. i would go out to the plains. i remember chasing a storm that no kidding, produced 15 tornadoes and this one thunderstorm kept forming, dying, and reforming, and you worked out in oklahoma city. so you certainly are an expert at severe weather forecasting and that's the type of thing we have to look out for. it might die but it could easily reform. one thing severe thunderstorm like to do, they like to feed over an old boundary from earlier storm. so this morning, if your alarm didn't wake you at 6:30 when we had that first round of severe weather, that cluster of storms puts out all these little hidden boundari boundaries. the thunderstorm find these boundaries and they act like little scoops, little wedges that help lift the air and generate new storms. so that's what we're seeing today. we thought the atmosphere was work over but obviously, the boundaries are worked over. we have enough juice and it looks like they are extending the severe thunderstorm warnings, south, into montgomery county. that is what we're waiting on for the national weather service to give us the go-ahead if we do extend that warning. you have to treat this whole cluster of storm as if there is a tornado warning. better to be safe than sorry. what do you sway the scope? >> the storm does show that it is not rotating as much. the weather service has issued severe thunderstorm warnings ahead of this cell. they have not issued a tornado warning. it surgeonly expires at 5:15. they've just issued a severe thunderstorm warning ahead of this storm down further into montgomery county and the district. northern prince george's county as well. the storm is not showing as much sign of rotation. how, it is generating an enormous amount of straight line wind potential. 50 to 60-mile-per-hour straight line winds is a guarantee. they're going to get 70-mile-per-hour winds. it looks like the storm is transitioning to more of a severe thunderstorm than a tornado producer. that doesn't mean that it is any less dangerous. it just means a little less chance of a tornado. there is still in all likelihood, going to be very severe, straight lane wind damage with this storm. so again, they may not, it doesn't look like they're going to have to deep tornado warning going. this is still a powerhouse thunderstorm. you can see that orange shaded polygone to the northern tip. that is the severe thunderstorm warning now that goes until 6:15. it is showing less rotation but it is still capable of 50 to 60-mile-an-hour winds. for now, let's go back to the news for a minute. we'll take a breath in the weather office and get our bearings settled once again. you folk, northern montgomery county, western howard, frederick county, carroll county, this is a bad thunderstorm. you need to be moving indoors. if you live in the washington area and you're about to start the drive home, don't do it. 270 will be hit hard by this thunderstorm and it will be a nightmare for traffic. you may want to wait it out. there is a picture right there on 270. this storm will come right down 270. so the evening rush hour, which is already based on that picture, showing signs of having some problems. if you live and work in northern parts of the district or southern montgomery county and your route takes you up 270, stay put. stay inside and wait it out. it will be gone by 7:00. you'll get home late but you'll get home safe. that's what we care the most about, that you get home safe. city put. stay inside. don't get out in this storm and dry to drive if at all possible, wait. it looks likes we just got a new tornado warning. yep. they have continued the tornado warning now for carroll, frederick, howard and montgomery county. the tornado warning goes until 6:00. the tornado warning has been reissued and it will continue now until 6:00. i'll turn this off briefly so you can see the new red polygon here that includes damascus and all the way to gathsburg. all the way from damascus to gaithersburg. that's the bran new tornado warning that goes until 6:00. i'll zoom in and we can get your town name. dmas cushion, cedar heights, just to the east. green ridge acres. lleytonsville, claysville, montgomery village, down to gaithersburg. just to the east of boyds, maryland. all you folks that live in and around this area, if you were planning on driving home into this area, don't do it. stay put and stay inside. kim? >> just reading the latest bulletin. >> just reading the latest on, this the rotation, if there were to be one, was about eight mail north of dmas kuk. near mount airy. this particular cell that we're watching the tornado warning is moving south at 20 miles an hour. so locations impacted will be green valley, damascus, montgomery village, germantown, gaithersburg. we've been watching this. we don't have the ground troops but we do know we have the wind gusts. we've seen them. not safe to be out there on the road. you don't want to be on 270 this evening. certainly we want to think about flash flooding concerns now that this has entered the greater frederick area. between fred rirk baltimore, and hagerstown. i used the live in frederick. you know how on any given day of the week, this is a nightmare. it is going to be a heavy rain make per will cause a lot of hydroplaning. it might be water cover where you don't know if it was washed out. they're having all types of flash flooding effect. north of the mason dixon line, i guess now it is our turn. i guess they'll continue that tornado warning. >> it is a very good idea from the national weather service to keep this tornado warning active. there is so much wind energy inside this thunderstorm. this is not your average garden variety thunderstorm. this is a powerhouse severe thunderstorm with very high winds associated with it. we'll put the velocity mode over here. where you see the brightest colors, that's where the highest winds are. you can see the bright green on interstate 70. moving into northern most montgomery county. these storm have had very high winds. the most dangerous parts of the storm is into northern montgomery county along the leading edge. right along the leading edge. in northern montgomery county, kitty hawk estates, just around the stone lake area. this is where the real bad stuff will be for the next couple minutes. ashley acres, down here toward damascus. florence estates, you guys need to be moving inside quickly. stay away from your doors and windows. kids, if you're home alone waiting for the folk to come home from work. turn the tv up and to go a place of safety. lowest level of your house. if you have a basement, a basement is a great place to go. if you live in a two-story house, the bottom floor, a hall bathroom is a good idea. grab some towels, jump in the bathtub. that's always a great place to ride out severe weather in a bathtub with a towel over your head. anything that would fall down would land on the rim of the tub. if you're in the tub, it stops before it gets to you. that's very important to keep in mind. you folk in damascus, it is almost on top of you. upper seneca crest. you only have a few more minutes now before the worst of this storm is on top of you. you folk now out toward mount airy. you're seeing a little of the worst of it. it has already gone by. still more heavy rain out there. i don't want to completely forget about the fact that this is not just a single storm. this is actually a bowing out line of thunderstorm. frederick maryland is getting another line of severe thunderstorms. not anywhere near this. here you can see the comparison inside the velocity. notice how the bright yellows are now on the montgomery county, frederick county line. it is n it is not packing the same punch. once you have thunderstorm in the morning, sometime it drain some of the potential for additional storm out of it. that's whennie when the storm go by, you get a little break. this is coming down into very warm air. the temperatures have made it to near 90 degrees. the pump has already been primed. the earlier severe weather we had this morning, now a distant memory. that was some ten hours ago so the atmosphere has had time to recharge. and that is reason that we are continuing to see more severe weather this afternoon. i'll turn the radar off so you can see where it is in particular. that red polygon through damascus to the east of clarksburg, you through montgomery village work into gaithersburg. that red polygon. that is tornado warning that goes until 6:00. 6:00. if you are at your place of business. if you were planning on going out shopping, the best thing you can do is to stay put. stay put. stay inside. this is a very dangerous thunderstorm. i can't say that enough. a lot of time we say that. and people say, oh, it is just thunder and lightning. this is not just thunderçó and lightning. this has an enormous amount of wind energy and a lot of very destructive potential with it. we've seen 60 to 70-mile-an-hour winds across washington county, near hagerstown. 60-mile-an-hour winds near hagerstown and undoubtedly producing 60 to 70-mile-an-hour winds if it is coming into downtown damascus. you can get a better sense of this. you folk here, walkersville, you can in the clear. westminister, we're into far northern maryland. thurmont, you're in the clear. walkersville southbound toward 270, frederick, maryland, the rain about ready to come to an end. at least in the northern side. but you folks down here toward centreville, maryland, not centreville, virginia, centreville, maryland. it is producing gusty winds. the big show in town on the radar is this one storm. it is not far now away from montgomery village. the leading edge of the storm now is only about five mile away from montgomery village. that doesn't give you any more than 20 to 25 minutes if you're in montgomery village. if you live toward claysville, park ridge, park ridge estates, henderson corner, green ridge acres, wood field, lowest level, interior room of your home. don't go look out the wind officially everybody gets tempted when they their thunder and they see the wind, they get their video camera. that's the dumbest thing you can do with a storm this strong. it is capable of sending a large branch or rock, smashing the glass out and you're standing right there and that's not where you want to be when the window break out. this is just south. upper seneca crash toward woodfield. sweet stakes, maryland, rocky road park, banner country. all these places are on the immediate doorstep of this thunderstorm. barton woods, you need to be moving in, clarks brook heights. you are all under the gun for the next 5 or six minutes. we'll widen out the view so we can get an estimate of the winds. we can see how the storm is holding its intensity here. let me turn the lightning off so we can see it a little easier. we will find out how strong winds are blowing. it is holding its intensity here. 58 miles an hour. estimated straight line winds from the radar. down at the ground where all of us live, these winds could be much stronger. the heavy rain coming down through the storm. it will transfer the wind down from aloft. down to the ground. micro burst essentially are formed just that way. it brings the wind energy down through the storm with it. this will be a very dangerous situation around here. still not getting quite the heavy rainfall amounts in and around northern montgomery county that we were getting earlier. that is actually a little bit of good news. but the wind energy has not diminished at all. i will get here on the other screen in a moment and put a storm track on it so you can see the town name and he is the mated times of arrival. just now moving through damascus. just to the east of clarksburg. the worst part is on the east side. the evening drive up 270 will be a parking lot, everybody. if you are watching and you live, you work in downtown d.c. or southern montgomery county and your route home would take you up 270, stay put. stay inside. a live picture here. a very dark sky. heavy rains as well. this is near northern, i guess, upper county here. 270. i don't know which. i can't tell by hook at the camera where exactly that is. the worst will be on the eastern side. if you live north or east of 270, that's where the worst of it will be. the other part, that cell is dropping out of frederick. it will be coming through western montgomery county. you'll get your chance for severe wave in about the next 30 or 40 minutes. far and away, the most dangerous part of this storm is coming right through heart of damascus heading directly for the east side, clarksburg, down to gaithersburg. the storm has shown no signs of weakening at all. a little less rotation than did it earlier. but it still has enough wind energy to justify this tornado warning. the weather service, even though we haven't seen the rotation yet. we have certainly seen the wind energy with this speed maintaining. we'll put a storm track on it on this other side. so meadow brook estates, about three minutes from now. down toward negotiaten hunt hills, another 5 or six minutes to get to a safe place. the leading edge is where at this have the highest potential for damage still exists. >> we've been watching this. originally this was coming across the mason dixon line. this cluster of storm, they were a little more separated. okay in they weren't all connected. and it looking more and more to me like the group of thunderstorms is starting to bow out a little bit. no doubt, it is so dangerous and we don't like bow echos. but if that is the case after they areçó starting more to congeal. >> this is a dangerous -- i want to go ahead and ramp this up a little more. you folk to the south of damascus here, i'm looking at the velocity mode. you can see we have a plus 57 and a minus 50. that's 107 miles an hour worth of rotation in that little part of the storm. that's what doppler radar gets us is the ability to pick up rotation. so over in the have the distance of now only wa1.2 mile, we now have more than 100 miles an hour of rotation. this is an extremely dangerous storm. you need to be moving to a place of safety immediately. get to a place of safety. this storm has really started to ramp up in the last radar sweep. let's see if i can find it again. that was quite a lil view just south of damascus. this is a very dangerous part of the storm. it was picking up more than 100 miles an hour of rotation. we need to really move to, move inside. if you're caught out at a store, if you're listening to this on the radio. be careful. stay put. don't get in your car and drive out into this kind of a storm. this storm here is not your average variety thunderstorm at all. just to the east of clarksburg. it is still 85 miles an hour of rotation right there just off to the east of clarksburg here. willness walk, northwest of brink. fountain view, clarks brook estate, clarksburg heights, green ridge acres. this storm is very dangerous. the worst part is there. it is going to be out ahead of that. montgomery village, you'll be getting at least 35 to 40-mile-an-hour straight line winds here in the next little bit. maybe much higher than that. this is jerl germantown, maryla. you can see the really darkening to the sky. not a lot of rain there in germantown. the heavy rain is not far away from you at all. mog village, gaithersburg. this storm is now, let's get a distance of it. the leading edge is only about three miles now away from downtown gaithersburg. you have less than ten minutes. montgomery village, you have less than five minutes if it hasn't already turned severe at your house. you have very little time to get to safety. stay put and stay inside. if you live in a mobile home, you need to get out. get to the ditch or culvert maybe by the end of the driveway. you will be dirty and you will be wet but you will be safer outside a mobile home. these thunderstorm more typical in other parts of the country than these parts. we do get them once in a while and this will clearly be one of those days where we will have to watch out for this. not a lot of rotation there so that's some good news. you can see it moving to the south at 20 to 25 miles an hour. the red polygon you see on the screen, that is the active tornado warning from damascus to gaithersburg right through the heart of central montgomery county. that's where the tornado warning is. that's where we are finding the most intense part of the rotation in this storm as well. on the bigger view here. it doesn't look like, i don't see a classic hook echo. again, we've not had a report of a tornado on the ground. we have so much rotation aloft. it is an abundance of good science to keep this warning active. the thunderstorm warning officially goes until 6:00. you have another 25 minutes. and i just don't see any reason for them to take this tornado warning down and i suspect that over about the next 15 minutes know they may actually have to extend the tornado warning if you are to the south. so just to give you some lead time here, southern parts of montgomery county. this storm is coming directly toward you. south of gaithersburg now toward aspen hill, silver spring, this storm will threaten the north side of the district of columbia. from potomac to wheaton to aspen hill. spencerville, gaithersburg. the worst will be on 270 toward spencerville and aspen hill. again, everybody needs to take the storm very, very seriously. if writ to continue that track, we'll go ahead and i'll show you what the radar is estimating. the future motion of this storm is for to it come right through downtown washington. by 6:30. about another hour from now, this storm might be moving right through the middle of downtown washington. what you're looking at is our future scan. it is going forward in time and estimating where it will be. i'm estimating about 6:00. between 6:00 and 6:30 in downtown washington. waldorf and la plata. if it holds together long enough, it can come from the downtown area. it will be down in waldorf by 7:30 this evening. about two hours from now. that's the future of this storm. we'll go back now to the present. and we'll give you another storm track here. our rolling knowles, ancient oak north, 5:41. gaithersburg, less than five minutes. londonon er d oon derry. you all need to be taking cover at this point in time. and southern montgomery county, you've got a little bit of lead time here. i'll give you the distance. the distance from the leading edge of the storm to the capital beltway is 10 miles. it is good about 25 miles an hour so that's about 25 minutes before it lands on the north side of the capital beltway. if you have interest, if you're watching us now, southern montgomery county from potomac to silver spring, into northern prince george's county here. college park. qulr it is generating a tornado or not is almost irrelevant. it is certainly capable of producing straight line winds in excess of 60 miles an hour. it will have to be watched carefully. >> just looking at the overall shape of the cluster of storms, the part that is sagging south the farthest. that's the part of storm being pushed by its own winds. in the parts where the storm is bowing, that's where the fastest winds seem to be generating from. rockville, busy town centers like. that you'll be in the path of very heavy winds. we could have a rotation that signifies a tornado potentially. but straight line winds. the weather service will go back and survey damage from community that have houses and trees blown over. you don't need to have a tornado to have similar damage as what straight line winds can produce. we know these are easily producing 60 miles per hour winds. it looks like they're beginning to pick up some speed as they go down 270. notice mind to the speed limit there. rock wood, start making your plans here. keep the tv cranked up. we'll be following this. and as a heads up, they reissued that tornado warning. i believe that one goes until 6:15. that's getting down into richmond's television market. we do have some viewers that can check us out from there. and they, too, still reactivate that tornado warning. it begins to move south. our focus now into northern maryland. montgomery village, that's where the big cluster of storms that will likely be affecting d.c. later this evening, within an hour or so were watching this next one. in addition to the potential rotation and very strong straight line winds. we're looking at very heavy rain. we'll be:00 them and we're tracking the lightning as it pulses. we have had so many lightning strikes. how it might take a break and then regenerate based on following lightning. and this thing has not really lost any punch. it was in harrisburg this afternoon while we were reporting the forecast and now it is blasting through montgomery county, maryland. and taking aim on what will be the capital belt by as abouty rush hour. >> as a reminder, we've had a lot over our area. you folk in montgomery county, the event on july 25 think that took 300,000 people without power. that was generating 70 to 75-mile-an-hour straight line winds. there was no tornado with that storm. but it was a 70 or 75-mile-an-hour straight line wind that did all the damage and knock out the power. you folks in arlington and alexandria, your severe storm. that was between 60 and 70-mile-an-hour straight line winds. it is the same type of intensity and thunderstorm that we've been dealing with for a couple time. we're getting a little practice. they need to be taken extremely seriously. we're going back to the velocity mode and we'll see if we can see any kind of rotation in this storm. it still looks like a straight line wind producer. when you have the winds coming out of the storms, there is rotation aloft and sometimes you can spin up, i'll say, a small tornado. as tornadoes go. it can still do an awful lot of damage. i don't want to say a small tornado and have you then as a viewer assume that means it is not as dangerous. you can take this storm very, very seriously. it is sagging ever southward toward gaithersburg and rockville, maryland. it will be down here on top of you in the next five or ten minutes. not a whole lot of rain just yet but is not long away from happening. so you need to be very cautious with this storm. the best advice i can give anybody at this time is to stay put and stay inside. the worst of the storm has gone down 270. it will hold together long enough to get into southern montgomery county. and eventually into the northern part of the district of columbia. you folks from beltsville to hyattsville to portions of prince george's county need to be on the lookout. it is still some distance away. the leading edge of the storm is a little less than 10 miles away from the 270 spur where it join the capital beltway. it is ten mails away. it will take about it 20 minutes or so to make it to the capital beltway. the time now is 5:45. so by about 6:00 to 6:10, it will be on the northbound parts of the capital beltway. if you were planning on getting in your car and driving around or running an errand, don't do it. the best thing you can do is wait it out. i give you the reason you won't to have wait all night. here's a look at the big view. this one coming down through montgomery county. this is the last real severe thunderstorm. now across southern pennsylvania, the storms have already left that area in northern most areas. we won't have to worry about it any longer than this storm. nonetheless. over the last hour, it needs to be watched very carefully. now tome toll, wheaton, college park in the northern parts of the district of columbia within the next 30 minutes. it will be arriving in those locations. let's go back to the newsroom. >> you've been mentioning gaithersburg and chris gordon is in gaithersburg and he has sought shelter. he's on the phone with us. >> what is the situation there? what is the weather like? >> well, we have heavy rain. we have lightning and thunder. you can probably hear it in the background. we're getting line. i would not say lightning bolts. the lightning strikes lighting up the sky and then thunder two to three seconds. it indicates they are very close. gaithersburg on south frederick road, to give you our exact locations. we are at the apartment building that got hit by the tree this morning. if lightning can attract twice, it looks like it is coming over us. we have other rain for about ten minutes. it was heavy about ten minutes ago. it is just starting now to lighten. if you heard that -- very close to gaithersburg. i don't know if you can hear that or not. >> we can hear it. >> it came right through your phone. tell us about winds. are you seeing or feeling any winds there? >> okay. there were winds as the strong approach, the winds started. then we got some rain. there was almost no humidity. the breeze was a little cool. then the rains were very hard. now we are at a point. i tell that you the rain has almost stopped. this is the duration of about ten minutes. i still see the sky lighting up. occasionally. and we did have a bolt of lightning which you could see very, very clearly in the sky. so rockville pike, extended up from gaithersburg. i see traffic moving. it would create streams in the parking lot. there's more thunder coming through. the rain isn't the problem. right now it is lightning and thunder. and the winds are moderate. they were heavier before. about ten minutes before. >> hey, chris. up you could see traffic. traffic is moving and people are able to transit through that area? >> yes. we're talking about the area in gaithersburg north of shady grove road. two lane of traffic going north. it is coming from the north or came from the north from germantown, montgomery village, through gaithersburg where i am right now. they are moving along on the roadways slowly. and there is very light traffic moving south on the other side of the road. now the rain is picking up as we look at the parking lot. you can see streams forming. the rain is getting heavier. it is almost as if it had passed. it is starting to get heavy again. >> i know you were according the storms this morning. do they have an issue with flooding? you're starting to see some signs of streaming? >> what is your name? >> victoria. >> did you see any flooding thong? >> yes. >> just tell me about it'll. >> it was a lot of water. it was flooding everywhere. it was just terrible. very deep. >> what do you think what you're seeing right now? how do you compare to it this morning? >> right now. better than it was this morning. not as deep but this morning it was terrible. >> what about the line bolt you just saw? >> that was out of the world. never seen anything like that before. >> that's the one that you heard. on the air. >> are you still there? >> i'm still here. >> you were saying quled the air gets really dynamic because it is so hot, is this what this back door cold front is? this air pushing in that's creating the havoc? >> yeah. any time you get a difference in air mass, we've had our air mass super charged with all 97 degrees yesterday. dew point temperatures are in the 70s. a lot of people don't understand that. it is a measure of the atmosphere. it can be turned essentially into gasoline for thunderstorms. that's what helps give them their energy and power and their ability to generate. be only the heavy rain but to keep things really roaring. this thunderstorm now is bowing out a bit. the straight line winds are capable of being 70 miles an hour. so that's a low end tornado wind threat. a very strong thunderstorm at this point in time. i think the tornado threat is diminishing. allow, it is still a thunderstorm that is probably going to knock out power to at least 100 or 200,000 people as it comes back down through montgomery county. i would be shocked if we did not have upwards of 100,000 people without power before this is done. and it is continuing to move further to the south. also, focusing mainly in the state of maryland. the storm is starting to sag over the potomtompotomac river. you can see it north and east leesburg. this whole storm now is sagging southbound. all the way down to leesburg, over the river toward poolsville, ashburn, virginia. it is also a severe thunderstorm. we're watching for the chance of tornadoes. again, this red polygon here. that's the tornado warning until 6:15 themselves may have to extend it at least one more time. i can tell you that from what i've been able to see on the radar, the rotation threat is diminishing a little bit. the straight line wind threat remains very high. it is continuing its march southbound toward the beltway. leasing but, sterling, reston, far northern fairfax. to rushville, you're in on the rain. further here toward the west, lake potomac. you've only got five or ten minutes away. you get toe potomac river into northern virginia. river oaks, mclean, northern most portions of loudoun county, virginia. cook town, you're not going -- you won't get missed by this at all. the worst will go east of you. you'll still be capable of having very heavy rain. some gusty winds and some very frequent line. it will come along with some amount of flash flooding. the best thing is to stay put. it is making travel treacherous at best. i'll put this into motion. you can get a sense, we'll take a check of the lightning. see if the lightning is pulsing. it is diminishing. sometime it helps to think of this as having a personality. they exhale and blow straight line winds out. they recycle. they regenerate. they're breathing in. they're ready to pop out again. what appears to be happening right now is it may be giving breathing in so it can puff out another line of straight line winds. this is making very quick and steady progress toward the capital beltway. you folk into northern fairfax county. northern and eastern parts of loudoun county, virginia. take cover now. don't mess around with this storm. it is, the worst of it will go toward the 270 corridor. right along the potomac river taken with montgomery and fairfax, this will be quite a thunderstorm for you as well. >> technically speaking, the orange shaded area, the warning goes until 6:15. the tornado warning goes until 6:00. we'll see if the service continues that tornado warning or not. from everything chuck and i have been seeing original the radar, using the velocity which is the way we look at the winds which is important for figuring out if there is a tornado, it seems to be that these are more straight lined winds. we should be getting an update from the weather service if they're going to be continuing this tornado warning or not. right now it extends into gaithersburg. we'll see if it will include silver spring and gaithersburg. that will be coming up. you can see the whole cluster is bowing out. that is generally speaking where the fastest winds are. we know these winds are moving around 20 to 25 miles an hour. from that we can give you specific time wednááqpv the storm will be around you. so silver rock, the eta for you is 5:56. twin brook forest, if you have:56 as well. then to 5:57 for twin brook, rock creek village, dean wood and broad woodmanor. all those communities that we just storm tracked for you trying to give you a better understanding of the time frame. and chuck was talking about how the storms kind of cycled through the life cycles. sometime they can slow down. you need to know history. the history, 60-mile-an-hour winds. i was looking at more storm report from frederick county. they had large limbs blown down. that was up by union bridge, about an hour or so ago. that is the type of thing. we've been tested over the last few week. 6:27, for example. silver spring as we get a little farther ahead. we've been tested by a lot of storm. that could be in the works this evening. 6:17. bethesda, 6:13. takoma park, we had an eta of 6:32. to give you an idea of the time frame. start thinking, if you have a loved one that comes home at that time, get them on the phone and ask them to hang out at work. grab a bite at the diner down the street from work and take your time coming home. you don't want to be on the roads. with certainly the heavy rain. rainfall rates, any where in two to three inches an hour. a nightmare with the hydroplaning on 270. soon to be the capital beltway. the best recommendation is to wait it oux you folk in frederick, maryland, and walkersville toward hagerstown. you are done with the severe weather threat. you're getting the all clear, at least from me. as we get further to the south, the worst of it now, another cluster of some pretty strong thunderstorm in northern parts of loudoun county, it is sagging southward toward leesburg, ashburn. it is just about ready to come over the potomac river into the northern tip. reston, this isn't far from you. river oak, cabin john, maryland, this storm is barreling down very, very quickly. you only have a few minutes left to get to your place of safety. the tornado warning officially goes until 6:15 -- i'm sorry. 6:00. the tornado warning is almost done. we'll see if they will reissue it. it just about ready to be on the capital beltway. it will be in fairfax county, in the district of columbia in the next few minutes. >> thank you, chuck. strong storm moved in. they moved in quickly and did a lot of damage. >> two of them. one this morning, another one this evening. sfae weather hitting us all over again. it has been one heck of a stormy summer season. a live look now at conditions in the washington skyline tonight. hard to believe we're dealing with yet another round of severe weather. >> good evening. >> i'm wendy rieger. here's the latest from this morning, gaze gath received one of the biggest blows from that a.m. storm. several alarming trees fellow, including one that traps people inside an apartment building. >> thousands of people dope have powerful most in maryland, most are pepco customers. 66,000 people in the dark in maryland. more than 11,000 outages in the district. 5,500, we're will, in northern virginia so far. >> the power outages have contributed to some traffic nightmares in montgomery county. signals have gone dark at nearly 200 intersections. what began as the morning commute for drivers, stretched into the evening rush hour. >> really rough out there. we've been all over the all day long. a lot of damage. a number of traffic problems on the roads as a result of all this. >> is this thing winding down? >> no. we still have a lot of severe