>> reporter: temperatures across parts of the midwest are soaring into the upper 90s with heat indices in the triple digits. many of the schools aren't equipped with air conditioners, causing some to call for early dismissals and others to cancel the day all together. >> we don't dismiss just cause kids are hot. we dismiss because learning suffers. >> reporter: parents say it's the right move. >> i think it's the right call. it's hot. there's no air conditioning. >> reporter: it may be a heat wave in the heartland but in the desert it was a wave of dust, a monstrous dust storm called a haboob swept through southern arizona monday evening with visibility less than a quarter of a mile. in southern california, residents are recovering from this weekend's flash floods that waterlogged stores and neighborhoods. the rising water stranded drivers and claimed one life. the national weather service reported a 77-year-old california woman was swept away in her car. you can see what a huge area the