Today is forecast to be Much Cooler than yesterday.
Nowcast as of 11:59 am CDT on July 11, 2009
Now
Through 1 PM...light to moderate showers with isolated thunderstorms will continue to develop and move southeast across portions of southern Illinois...southwest Indiana and west Kentucky. A band of stronger storms extended from near Du Quoin Illinois...southwest through Marion to Eddyville Kentucky. These storms have a history of producing torrential rains. Some communities that may be affected by the torrential rains include Herrin...the Lake of Egypt area and Golconda Illinois...as well as Eddyville...Smithland and Marion Kentucky.
Forecast for Williamson
Updated: 10:37 am CDT on July 11, 2009
Rest of Today
Mostly cloudy. Showers and thunderstorms late in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall. Highs in the lower 80s. West winds 5 to 10 mph late in the morning shifting to the north in the afternoon. Chance of precipitation 90 percent.
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 70s. South winds 5 mph.
Monday
Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds 5 mph in the morning shifting to the north in the afternoon.
The National Weather Service in Paducah has issued a
* Flash Flood Warning for... Jackson County in southern Illinois... Williamson County in southern Illinois...
* until 230 PM CDT.
* At 1223 PM CDT... another round of showers and thunderstorms is moving south across Jackson and Williamson counties. While some areas have had a brief break in the rain... this new round of storms will contain brief but torrential rainfall and may produce another 1 to 2 inches of rain before pushing south of the area by 2 PM. Local law enforcement reports some roads are still flooded and impassable.
* Locations in the warning include... Carbondale... De Soto... Cambria... Hurst... Carterville... Murphysboro... Herrin...
Precautionary/preparedness actions...
Excessive runoff from heavy rainfall will cause flooding of small creeks and streams... urban areas... highways... streets and underpasses as well as other drainage areas and low lying spots.
Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely. Move to higher ground.