Mazon, Illinois

... Winter Weather Advisory in effect until 3 PM CST this
afternoon...

The National Weather Service in Chicago has issued a Winter
Weather Advisory for freezing rain and sleet... which is in effect
until 3 PM CST this afternoon.

* Timing... a mixture of freezing rain and sleet will continue to
move north across the area today and continue through Thursday
morning. Temperatures are expected to very slowly warm above
freezing from south to north beginning this afternoon through
Thursday. As temperatures warm above freezing... the
precipitation will transition to rain.

* Accumulations... snow and sleet accumulations less than one
inch. Ice accumulation of up to one quarter inch.

* Hazards... accumulation of ice.

* Impacts... glazing of roadways... parking lots and sidewalks.
This will make for hazardous travel on untreated surfaces.

Precautionary/preparedness actions...

A Winter Weather Advisory means that a combination of snow...
sleet... or freezing rain will result in slippery roadways and
cause travel difficulties. Be prepared for hazardous driving
conditions and use caution while traveling.

... Flood Watch remains in effect from Thursday afternoon through
late Thursday night...

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 Thursday afternoon through late Thursday night.

* Rain is expected to become moderate to occasionally heavy
Thursday afternoon and night. 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 will occur... with some rivers
possibly reaching 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 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.

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 / 2.0 / 5
Beach Park 0.5 / 2.6 / 6
Beecher 0.0 / 0.4 / 3
Downers Grove T / 1.8 / 5
Grayslake / 1.4 /
La Grange 0.1 / 1.7 / 5
Melrose Park 0.0 / 2.0 / 5
Mount Morris / 1.0 /
Naperville / 1.1 /
Oak Brook / 2.1 /
Peotone 0.0 / / 3
Plainfield 4sw T / 0.5 / 4
WillowBrook 0.0 / 0.8 / 4
Yorkville 2se / T / 5

Northwest Indiana

Highland 0.0 / / 2