Winter Weather Advisory in effect for the Chicago area north of Interstate-80 from 2PM this afternoon until 9PM this evening

The Chicago National Weather Service Office has issued a Winter Weather Advisory for much of northeast Illinois and the Chicago area north of Interstate-80. Currently rain is falling over a good portion of the region with pockets of sleet or snow. Closer to the Illinois-Wisconsin state line precipitation is turning over to snow. Indications are that while the center of low pressure over southeastern Iowa is moving very slowly east and will be in west-central Illinois early this afternoon, cold air aloft is beginning to shift ahead of the low Рcausing the air column to cool over southern Wisconsin and northern Illinois Рthis in turn will accelerate the anticipated changeover back to accumulating snow over the Advisory area. Two to 4 inches Рwith possibly higher amounts could build up over northeast Illinois by later this evening.

Following is a summary of the Advisory Issued by the National Weather Service and a map below depicting the Advisory area.

 

Winter Weather Advisory

NATIONAL WEATHER SERVICE CHICAGO IL
1111 AM CST THU FEB 7 2013

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER
WEATHER
ADVISORY FOR SNOW...WHICH IS IN EFFECT
FROM 2 PM THIS AFTERNOON TO 9 PM CST THIS EVENING FOR THE
FOLLOWING COUNTIES IN NORTHEAST ILLINOIS
..OGLE-DE KALB-KANE-DUPAGE-COOK-WINNEBAGO-BOONE-MCHENRY-LAKE
INCLUDING THE CITIES OF...OREGON...DEKALB...AURORA...WHEATON...CHICAGO
...ROCKFORD...BELVIDERE...WOODSTOCK...WAUKEGAN

* TIMING...RAIN WILL GRADUALLY CHANGE OVER TO SNOW BY MID-AFTERNOON
IN TIME FOR THE EVENING RUSH - SOONER IN THE
NORTHERNMOST
LOCATIONS CLOSER TO THE ILLINOIS-WISCONSIN STATE LINE.THE SNOW WILL
CONTINUE INTO THIS EVENING...BEFORE TAPERING OFF LATER TONIGHT.

* ACCUMULATION...SNOW ACCUMULATIONS OF 2 TO 4 INCHES WITH SOME HIGHER
AMOUNTS NORTH. THE HIGHEST AMOUNTS WILL BE   NORTH OF INTERSTATE 88
AND THE NORTH SIDE OF CHICAGO.

* OTHER IMPACTS...THE THREAT FOR A PERIOD OF HEAVY SNOW COULD
  RESULT IN REDUCED VISIBILITIES UNDER A MILE AT TIMES AND RAPID
  ACCUMULATION ON AREA ROADS DURING THE EVENING COMMUTE.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s