Another hot, muggy day is ahead for much of Iowa, with extremely hot conditions expected in one corner of the state. Rod Donovan, a meteorologist with the National Weather Service, says much of Iowa can again expect highs in the 90s this afternoon. A Heat Advisory is in effect for much of Iowa’s southern half while an Excessive Heat Warning is in effect for a dozen counties in southwest Iowa.

The heat index there may hit 115-degrees this afternoon. Tuesday afternoon’s storms rolled across Iowa, with some areas reporting 80-mile-an-hour winds and plenty of tree damage. A Cedar Rapids woman was hurt by a falling tree. Donovan says there’s a silver lining in the clouds.

He says, "One good thing with those storms, they did wash out a lot of our oppressive humidity across the area where we’ve had dewpoints yesterday in the upper 70s to around 80 (percent), which is almost unheard of." Iowans can expect more thunder-boomers later today, Donovan is predicting.

He says more storms are expected to roll out of Nebraska and over much of Iowa this afternoon with the possibility of more damaging winds and large hail. To learn more about the forecast, visit "" and click on Iowa on the national map.