Today is forecast to be nearly the same temperature as yesterday.
Forecast for Cook
Updated: 3:43 am CST on December 23, 2009
Flood Watch in effect from Thursday afternoon through late Thursday night...
Today
Cloudy. A chance of sleet or snow this morning...then freezing rain and sleet...possibly mixed with snow becoming more widespread during the afternoon. Ice and snow accumulation up to 1 inch possible by this evening. Blustery with highs in the mid 30s. East winds 15 to 25 mph with gusts to 30 mph. Chance of precipitation 80 percent.
Occasional rain. Areas of freezing rain possible in the suburbs. Blustery with temperatures nearly steady in the lower and middle 30s. East winds 15 to 25 mph with gusts to 30 mph at times. Chance of precipitation 80 percent.
Thursday
Windy and raw with periods of rain. Rain may be heavy at times. Highs in the mid 30s. East winds 20 to 30 mph with gusts to 35 mph. Chance of precipitation 90 percent.
Windy and rainy through the evening...then rain diminishing to occasional drizzle toward morning. Temperatures slowly rising to around 40. Southeast winds 20 to 30 mph with gusts to 35 mph at times. Chance of measurable precipitation 100 percent.
Christmas Day
Cloudy with a 40 percent chance of light rain showers in the morning...then partly cloudy in the afternoon. Blustery and turning colder. Temperatures falling into the upper 20s in the afternoon. South winds 15 to 25 mph with gusts to 35 mph at times.
Friday Night
Becoming cloudy with light snow or snow showers likely. Lows in the lower 20s. Chance of precipitation 60 percent.
Saturday
Cloudy with a 40 percent chance of light snow or snow showers. Highs in the mid 20s.
Saturday Night
Light snow or snow showers likely. Lows in the upper teens. Chance of precipitation 60 percent.
Sunday
Cloudy with a 30 percent chance of light snow or snow showers. Highs in the mid 20s.
Sunday Night through Tuesday
Mostly cloudy. Lows around 15. Highs in the mid 20s.
... Flood Watch in effect from Thursday afternoon through late Thursday night...
The National Weather Service in Chicago has issued a
* Flood Watch for portions of Illinois and Indiana... including the following areas... in Illinois... Boone... Cook... De Kalb... dupage... Ford... Grundy... Iroquois... Kane... Kankakee... Kendall... La Salle... lake IL... Lee... Livingston... McHenry... Ogle... will and Winnebago. In Indiana... Benton... Jasper... Lake in... Newton and Porter.
* From Thursday afternoon through late Thursday night.
* Heavy rain is expected to develop across northern Illinois and Northwest Indiana by Thursday afternoon and continue through early Friday morning. Storm total rainfall amounts of 1 to 2 inches will be common. Some areas may receive as much as 3 inches by Friday morning.
* The depth of the current snow pack ranges from 5 to 8 inches over northwest Illinois to 1 to 3 inches across Northwest Indiana. As this snow melts... combined with the expected heavy rain... and frozen ground conditions... rapid runoff and rises on area rivers are expected. Some rivers may reach or exceed flood stage. Flooding of low lying and flood prone areas will also be possible.
Precautionary/preparedness actions...
A Flood Watch means there is a potential for flooding based on current forecasts.
You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Record Report
Statement as of 12:36 am CST on December 23, 2009
... Record daily maximum snowfall set at Rockford IL...
A record snowfall of 3.4 inches was set at Rockford IL yesterday... Tuesday December 22nd 2009. This breaks the old record of 3.3 inches set in 1969.