Ice Storm Warning in effect until noon CST today...
Flood Watch in effect from noon CST today through late tonight...
Today
Freezing rain this morning...changing to rain this afternoon. Additional ice accumulation of less than one quarter of an inch. Temperatures slowly rising to near 35 this afternoon. East winds increasing to 15 to 25 mph with gusts to 35 mph. Chance of precipitation 100 percent.
Rainy...windy and raw. Periods of heavy rain. Mild with temperatures slowly rising to the upper 30s. Southeast winds 20 to 30 mph with gusts to 35 mph. Chance of precipitation 100 percent.
Christmas Day
Rain diminishing to drizzle early...then blustery and turning colder with light snow likely in the afternoon. Morning highs in the upper 30s...then temperatures falling to the upper 20s by evening. South winds 15 to 25 mph. Chance of measurable precipitation 100 percent.
Friday Night
Cloudy with light snow or snow showers likely. Much colder with lows in the lower 20s. South winds 10 to 20 mph. Chance of precipitation 70 percent.
Saturday
Cloudy with occasional light snow. Highs in the mid 20s. South winds 10 to 15 mph. Chance of precipitation 80 percent.
... Ice Storm Warning now in effect until noon CST today...
The Ice Storm Warning is now in effect until noon CST today.
* Timing... freezing rain is expected to continue through the morning. Freezing rain will transition to rain by noon as temperatures rise above freezing.
* Accumulations... between one quarter to four tenths of an inch of ice has already accumulated at many locations... especially on untreated and elevated surfaces. An additional tenth of an inch of ice will be possible this morning.
* Hazards... accumulation of ice. The accumulation of ice will be greatest on untreated and elevated surfaces. Ice falling from elevated structures could also pose a hazard later this morning and afternoon as temperatures rise above freezing.
* Impacts... ice will likely continue to accumulate this morning... with the greatest accumulations on untreated roadways... bridges... overpasses... and elevated surfaces. While many primary roads have been treated... driving conditions will be hazardous on any Road surface that becomes ice covered. Individuals should also remain aware for falling ice from elevated structures later this morning and afternoon as temperatures begin to rise above freezing.
Precautionary/preparedness actions...
An Ice Storm Warning means severe winter weather conditions are expected or occurring. Significant amounts of ice accumulations will make travel dangerous or impossible. Travel is strongly discouraged. Commerce will likely be severely impacted. If you must travel... keep an extra flashlight... food... and water in your vehicle in case of an emergency. Ice accumulations and winds could lead to snapped power lines and falling tree branches that add to the danger.
Areal Flood Watch
Statement as of 4:55 AM EST on December 24, 2009
... Flood Watch remains in effect from noon CST /1 PM EST/ today 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.
* From noon CST /1 PM EST/ today 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 local 3 inch 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.
Local Storm Report
12/23/2009 1050 PM
3 miles N of De Kalb, DeKalb County.
Freezing rain e0.30 inch, reported by trained spotter.
Ice accumulation. Power lines beginning to Droop and tree limbs are sagging. Treated roads are fine. Temperature is 30 degrees.
12/23/2009 1050 PM
3 miles N of De Kalb, DeKalb County.
Freezing rain e0.30 inch, reported by trained spotter.
Ice accumulation. Power lines beginning to Droop and tree limbs are sagging. Treated roads are fine. Temperature is 30 degrees.
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 /