a freak 15-minute sandstorm roared in to teheran and killed four people. it created utter chaos. within moments, a wall of wind-driven dust darkened the sky and sent temperatures plunging 25 degrees. the sand uprooted trees, knocked out power and crippled air traffic until rain washed it away. the search resumes this morning for a missing hiker in phoenix after it got too hot to keep looking. temperatures shot up to 110 degrees yesterday forcing crews to call off the search for eric fernandez. the 23-year-old from washington state vanished during a solo hike on camel back mountain. police found his car along with receipts for water and hydration backpack but no signal from his cell phone. voluntary evacuations underway in northern colorado after a river breach. floodwaters rushed in to the street of greeley. swamping neighborhoods. water levels are beginning to