A SNOW ADVISORY REMAINS IN EFFECT TONIGHT AND A GOOD PORTION OF MONDAY FOR THE CHICAGO AREA INTO NORTHWEST INDIANA AS A LOW PRESSURE "CLIPPER" SYSTEM MOVES OUT OF IOWA INTO CENTRAL ILLINOIS AND SOUTHERN INDIANA.
NATIONAL WEATHER SERVICE CHICAGO IL
859 PM CST SUN FEB 3 2013
...ACCUMULATING SNOW TO DEVELOP LATE THIS EVENING AND CONTINUE
THROUGH MONDAY MORNING...
.A WELL ORGANIZED CLIPPER TYPE SYSTEM WILL BRING SNOW TO NORTH-
CENTRAL AND NORTHEAST ILLINOIS AND FAR NORTHWEST INDIANA LATE
THIS EVENING THROUGH MUCH OF MONDAY. THE HIGHEST SNOWFALL TOTALS
ARE EXPECTED TO RANGE FROM 3 TO 5 INCHES ALONG AND NORTH OF A
LINE FROM JUST NORTH OF ROCKFORD TO CHICAGO TO VALPARAISO. THERE
MAY BE A FAIRLY SHARP CUTOFF IN SNOW AMOUNTS SOUTH OF THIS LINE.
THERE IS SOME POTENTIAL FOR LOCALLY HIGHER AMOUNTS GIVEN THAT LAKE
ENHANCEMENT OF SNOWFALL IS POSSIBLE LATE MONDAY MORNING INTO THE
AFTERNOON FROM COOK COUNTY TO LAKE AND PORTER COUNTIES IN INDIANA.
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
MONDAY...WINNEBAGO-BOONE-MCHENRY-LAKE IL-KANE-DUPAGE-COOK-
AND LAKE AND PORTER COUNTIES INDIANA
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...AURORA...WHEATON...CHICAGO...GARY...VALPARAISO
* TIMING...SNOW WILL BEGIN LATE THIS EVENING AND DIMINISH TOWARD
MIDDAY MONDAY...THOUGH LIGHT SNOW SHOWERS MAY LINGER THROUGH
MONDAY AFTERNOON.
* ACCUMULATION...3 TO 5 INCHES WITH THE HIGHEST AMOUNTS EXPECTED
ALONG AND NORTH OF A ROCKFORD TO CHICAGO LINE. LOCALIZED HIGHER
AMOUNTS OF AROUND 6 INCHES ARE POSSIBLE ACROSS COOK COUNTY IF
LAKE ENHANCEMENT CAN OCCUR LATE MONDAY MORNING.
* MAIN IMPACT...SNOWFALL RATES OF UP TO ONE INCH PER HOUR MAY
OCCUR AT TIMES LEADING TO RAPID SNOW ACCUMULATION ON ROADWAYS.
THE HEAVIEST INTENSITY IS EXPECTED FROM APPROXIMATELY MIDNIGHT
TO 5 AM FROM THE ROCKFORD TO MARENGO AREAS AND BETWEEN
APPROXIMATELY 3 AM AND 8 AM ACROSS CENTRAL AND NORTHERN PORTIONS
OF THE CHICAGO METRO AREA. ADDITIONAL MORE INTENSE SNOW SHOWERS
MAY OCCUR FOR A SHORT TIME LATE MONDAY MORNING ACROSS COOK
COUNTY THANKS TO LAKE EFFECT PROCESSES.
SNOW ADVISORY AREA DEPICTED IN PURPLE ON MAP BELOW.
