Saturday Night Weather Event Looking More Like Snow Than Freezing Rain, But Sleet Forecast Near I-80

Snow in Arlington Heights will probably be less than one inch and occur between 11:45 p.m. Saturday and 6:00 a.m. Sunday. Air temperature will hit freezing at about 10:00 p.m. Saturday after falling from 49°F starting at about 7:00 a.m. Saturday — temperatures managing to stay in the 40’s until about 5:00 p.m.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
908 PM CST FRI JAN 11 2013

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET
908 PM CST FRI JAN 11 2013

…ACCUMULATING WINTRY MIX OF PRECIPITATION POSSIBLE SATURDAY
NIGHT…

A STRONG COLD FRONT WILL MOVE THROUGH THE REGION SATURDAY AND THEN
STALL OUT OVER CENTRAL ILLINOIS INTO NORTHERN INDIANA SATURDAY
EVENING. A LOW PRESSURE SYSTEM WILL RIDE NORTHEAST ALONG THE FRONT
SATURDAY NIGHT RESULTING IN AN EXPANDING AREA OF PRECIPITATION
DEVELOPING OVER NORTHERN ILLINOIS AND NORTHWEST INDIANA.
PRECIPITATION OVER THE NORTHERN CHICAGO SUBURBS WEST TOWARD
ROCKFORD AND NORTH CENTRAL ILLINOIS WILL LIKELY BEGIN AS SNOW OR
SLEET BEFORE CHANGING TO ALL SNOW. FARTHER SOUTH FROM CHICAGO WEST
ALONG THE INTERSTATE 80 CORRIDOR…RAIN…SLEET…OR SNOW WILL
DEVELOP…BEFORE CHANGING TO ALL SNOW OVERNIGHT. THE POTENTIAL
EXISTS FOR SNOW TO BRIEFLY FALL RATHER HEAVILY AT TIMES…AND WHEN
COMBINED WITH TEMPERATURES DROPPING BELOW FREEZING COULD RESULT IN
TRAVEL BECOMING MORE HAZARDOUS. WHILE MOST AREAS FROM CHICAGO WEST
INTO NORTH CENTRAL ILLINOIS WILL SEE SNOWFALL AMOUNT OF 2 INCHES
OR LESS…A BAND OF HEAVIER SNOWFALL TOTALS OF UP TO SEVERAL
INCHES COULD FALL.

PERSONS PLANNING TRAVEL SATURDAY NIGHT SHOULD MONITOR LATER
FORECASTS ON THIS DEVELOPING POTENTIAL WINTRY PRECIPITATION EVENT.


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