Iowa Weather Report August 26th 2013 – Iowa Weather Network Archives

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IT’S HOT, LIVE WITH IT: Another day of sunshine, haze and hot temperatures across the state. Highs will be well into the 90s with some locations possibly hitting the century mark. Heat Indices will be well above 100° during the afternoon hours thus a heat advisory is in effect today and tomorrow for the entire state. The urban heat island will make the heat worse in and around Des Moines where an Excessive Heat Warning has been issued. Be very careful over the next week with regards to this heat wave. The twist that could make the weather week is a possible back door cold front that could move into the northeastern counties at mid-week. This could bring a threat of some showers and thunderstorms there. Right now the chances look to be about 20% at most and mainly north and northeast of an Osage to Oelwein to Clinton line. In any case temperatures will trend a bit lower in those areas by the end of the week no matter if there’s rain or not.

GO AWAY SUMMER: The extended period now has the ridge keeping hold through the first week of September before a trough finally shunts it off to the west. But we don’t have much confidence in this forecast either as we’ve seen about everything in the 8-14 day period so we’ll just have to wait until we get later in the coming week to see when this heat wave finally comes to an end.