URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1115 AM CST THU DEC 30 2010

...FOG WILL INCREASE AS WARM AIR RETURNS TO NORTHERN ILLINOIS...

.FOG NOW OVER NORTH CENTRAL ILLINOIS IS EXPECTED TO THICKEN WITH
TIME THIS AFTERNOON AND EVENING. AT PRESENT...VISIBILITIES ACROSS
THE ADVISORY AREA ARE STILL A HALF MILE OR BETTER. HOWEVER...AS
WINDS BECOME MORE SOUTHERLY THIS AFTERNOON AND EVENING...MILD AND
MORE HUMID AIR WILL MOVE OVER THE REMAINING SNOW COVER...RESULTING
IN DENSE FOG.

COUNTY SPECIFIC MESSAGE:

/O.CON.KLOT.FG.Y.0018.000000T0000Z-101231T1300Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA
1115 AM CST THU DEC 30 2010

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY...

A DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY.

* TIMING...FOG WILL BECOME DENSE THIS AFTERNOON AND EVENING.

* VISIBILITY...LOWERING TO A QUARTER MILE OR LESS IN WIDESPREAD
COVERAGE.

* IMPACTS...LOW VISIBILITY MAY MAKE TRAVEL HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.