Rain. Locally heavy rainfall possible. Blustery... mild. Lows in the mid 30s. Southeast winds 15 to 25 mph with gusts up to 35 mph at times. Chance of precipitation 100 percent.
Christmas Day
Cloudy. Occasional drizzle...chance of light rain and light rain showers in the morning. Chance of light snow or snow showers through the day. Blustery. Turning sharply colder. Highs in the lower 40s. Then temperatures falling into the upper 20s by evening. Southwest winds 15 to 25 mph. Gusts up to 35 mph. Chance of measurable precipitation 40 percent.
Friday Night
Cloudy. Chance of light snow or snow showers in the evening...then light snow or snow showers after midnight. Much colder. Lows in the lower 20s. South winds 10 to 20 mph. Chance of precipitation 80 percent.
Saturday
Light snow. Some snow accumulation possible. Highs in the mid 20s. Southwest winds 10 to 15 mph. Chance of precipitation 80 percent.
... Flood Watch remains in effect through late tonight...
The Flood Watch continues 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.
* Through late tonight.
* Rain is expected to become moderate to occasionally heavy this afternoon and continue through the overnight hours. Total rainfall amounts of 1.5 to 2 inches will be common... .with the potential for locally higher rainfall totals by Friday morning.
* Current snow cover ranges from 4 to 8 inches across northwest Illinois to 1 to 3 inches across Northwest Indiana. As the snow melts and moderate to occasional heavy rain develops... rapid runoff due to frozen ground conditions will result in significant rises on area rivers... with some rivers possibly reaching or exceeding flood stage. Flooding across low lying and other 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.
Public Information Statement
Statement as of 7:00 am CST on December 24, 2009
Snowfall and snow depth reports. Data provided by National Weather Service Chicago area and Rockford area snowfall team.
12 hr snowfall 12 hr snowfall total location ending 6am ending 6pm snow today yesterday depth at 6am Illinois
Batavia T / 0.1 / 3 Beach Park 0.7 / / 6 Beecher / T / Cicero / T / Downers Grove T / 0.1 / 4 La Grange / 0.1 / Melrose Park 0.3 / 0.4 / 5 Oak Brook / 0.6 / Peotone 0.0 / 0.0 / 2 Plainfield 4sw 0.0 / 0.0 / 3 South Beloit 3se T / 0.2 / 5 WillowBrook T / 0.3 / 3 Yorkville 2se / 0.0 /