Tuesday, August 7, 2007

Hot... Humid... Rainy?

Scattered thunderstorms have been occurring over the state since the weekend, including some severe weather that once again moved over the state last night. No significant damage reports were received from the possible damaging winds with those storms, however heavy rains were once again a concern and prompted Flash Flood Warnings to be issued for 6 counties.

Today should give us a small break from some of the thunderstorms, highs today in the mid 80s to low 90s from northwest to southeast. The southern and eastern half of the state will be more likely to see thunderstorms this evening, a few of these storms may be capable of high winds, but the heavy rains will be the main concern. Tonights' lows in the upper 60s to mid 70s over the state, with a good chance of storms moving into the southern half of the state. That round of storms moving in from NE/KS are likely to pose a heavy rain threat, with a small chance of a warning or two.

Wednesday brings another complicated forecast, with thunderstorms likely to affect the area during the afternoon hours. Highs will be decided on where those storms occur and how late in the afternoon they begin. For now expecting mid 80s in the northwest where storms are likely to first occur; upper 80s and low 90s for a majority of the state with a possible mid 90 temperatures mixed in for the southeast. Those thunderstorms should move across the rest of the state, blanketing the state in precipitation by the end of the night. Lows of upper 60s to mid 70s from north to south across the state with those continued thunderstorms.

We should finally clear the thunderstorm chances by Thursday afternoon, allowing for full heating over the state. Portion of southeast Iowa have been put under a Heat Advisory for this reason, indicating heat indices above 105 degrees. Lower to mid 90s are expected for most of the state with humid air also in place making it feel quite warm. Thursday night lows in the upper 60s north and lower 70s south with the humid air. Friday also expected to be dry, with highs in the 90s once again; Lows expected in the upper 60s for northeast Iowa while the rest of the state looks at 70s for lows.

The weekend looks to keep the hot air in place over the state, with some relief as another storm system clips the area. Small chances of thunderstorms have been entered into the forecast for this reason, mainly for northern Iowa. Those details as usual will come into better focus in later forecasts...

0 comments: