SEVERE WEATHER

  • Cook
    Will
  • Lake Effect Snow Watch

    Cook, IL

    ING THE CITIES OF...CHICAGO...JOLIET...GARY...VALPARAISO
    405 PM CST THU FEB 9 2012

    ...LAKE EFFECT SNOW WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
    THROUGH SATURDAY AFTERNOON...

    * TIMING...LAKE EFFECT SNOW IS EXPECTED TO DEVELOP BY EARLY FRIDAY
    AFTERNOON AND CONTINUE THROUGH FRIDAY NIGHT AND SATURDAY MORNING
    BEFORE SHIFTING EAST OF THE WATCH AREA BY MID AFTERNOON
    SATURDAY. NORTH TO NORTHEAST WINDS WILL INITIALLY FOCUS THE MOST
    NUMEROUS SNOW SHOWERS ALONG THE ILLINOIS SHORE FRIDAY
    AFTERNOON...WITH THE FOCUS THEN EXPECTED TO SHIFT MORE INTO LAKE
    AND PORTER COUNTIES IN NORTHWEST INDIANA OVERNIGHT FRIDAY NIGHT.
    WINDS WILL EVENTUALLY BACK TO THE NORTHWEST ON SATURDAY...
    ALLOWING THE BANDS OF LAKE EFFECT SNOW TO MOVE EAST OF PORTER
    COUNTY IN THE EARLY AFTERNOON. THE PERIOD OF HEAVIEST LAKE
    EFFECT SNOW AND FASTEST ACCUMULATION WILL OCCUR FROM LATE
    FRIDAY AFTERNOON INTO THE PREDAWN HOURS OF SATURDAY.

    * SNOW ACCUMULATIONS...WHILE LAKE EFFECT SNOW CAN BE HIGHLY
    LOCALIZED...CURRENT FORECASTS ARE FOR TOTAL ACCUMULATIONS FROM 3
    TO 5 INCHES IN FAR NORTHEAST COOK COUNTY...4 TO 7 INCHES ACROSS
    DOWNTOWN CHICAGO AND THE SOUTH SUBURBS...WITH 5 TO 8 INCHES FROM
    THE FAR SOUTHEAST SIDE OF CHICAGO EAST ACROSS NORTHERN LAKE AND
    PORTER COUNTIES OF NORTHWEST INDIANA.

    * OTHER IMPACTS...SLIPPERY SNOW COVERED ROADS...REDUCED VISIBILITY
    SEVERELY LIMITED IN THE HEAVIEST LAKE EFFECT SNOW BANDS...
    BLOWING AND DRIFTING SNOW...AND SINGLE DIGIT WIND CHILLS.

    PRECAUTIONARY/PREPAREDNESS ACTIONS...

    A LAKE EFFECT SNOW WATCH MEANS THERE IS A POTENTIAL FOR A LARGE
    AMOUNT OF SNOW IN ONLY A FEW HOURS. VISIBILITIES AND DEPTH OF
    SNOW CAN VARY GREATLY...IMPACTING TRAVEL SIGNIFICANTLY. CONTINUE
    TO MONITOR THE LATEST FORECASTS.

    &&

  • Lake Effect Snow Watch

    Will, IL

    ING THE CITIES OF...CHICAGO...JOLIET...GARY...VALPARAISO
    405 PM CST THU FEB 9 2012

    ...LAKE EFFECT SNOW WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
    THROUGH SATURDAY AFTERNOON...

    * TIMING...LAKE EFFECT SNOW IS EXPECTED TO DEVELOP BY EARLY FRIDAY
    AFTERNOON AND CONTINUE THROUGH FRIDAY NIGHT AND SATURDAY MORNING
    BEFORE SHIFTING EAST OF THE WATCH AREA BY MID AFTERNOON
    SATURDAY. NORTH TO NORTHEAST WINDS WILL INITIALLY FOCUS THE MOST
    NUMEROUS SNOW SHOWERS ALONG THE ILLINOIS SHORE FRIDAY
    AFTERNOON...WITH THE FOCUS THEN EXPECTED TO SHIFT MORE INTO LAKE
    AND PORTER COUNTIES IN NORTHWEST INDIANA OVERNIGHT FRIDAY NIGHT.
    WINDS WILL EVENTUALLY BACK TO THE NORTHWEST ON SATURDAY...
    ALLOWING THE BANDS OF LAKE EFFECT SNOW TO MOVE EAST OF PORTER
    COUNTY IN THE EARLY AFTERNOON. THE PERIOD OF HEAVIEST LAKE
    EFFECT SNOW AND FASTEST ACCUMULATION WILL OCCUR FROM LATE
    FRIDAY AFTERNOON INTO THE PREDAWN HOURS OF SATURDAY.

    * SNOW ACCUMULATIONS...WHILE LAKE EFFECT SNOW CAN BE HIGHLY
    LOCALIZED...CURRENT FORECASTS ARE FOR TOTAL ACCUMULATIONS FROM 3
    TO 5 INCHES IN FAR NORTHEAST COOK COUNTY...4 TO 7 INCHES ACROSS
    DOWNTOWN CHICAGO AND THE SOUTH SUBURBS...WITH 5 TO 8 INCHES FROM
    THE FAR SOUTHEAST SIDE OF CHICAGO EAST ACROSS NORTHERN LAKE AND
    PORTER COUNTIES OF NORTHWEST INDIANA.

    * OTHER IMPACTS...SLIPPERY SNOW COVERED ROADS...REDUCED VISIBILITY
    SEVERELY LIMITED IN THE HEAVIEST LAKE EFFECT SNOW BANDS...
    BLOWING AND DRIFTING SNOW...AND SINGLE DIGIT WIND CHILLS.

    PRECAUTIONARY/PREPAREDNESS ACTIONS...

    A LAKE EFFECT SNOW WATCH MEANS THERE IS A POTENTIAL FOR A LARGE
    AMOUNT OF SNOW IN ONLY A FEW HOURS. VISIBILITIES AND DEPTH OF
    SNOW CAN VARY GREATLY...IMPACTING TRAVEL SIGNIFICANTLY. CONTINUE
    TO MONITOR THE LATEST FORECASTS.

    &&

Video Forecast
Clouds will increase Thursday night in advance of a lake effect snow watch Friday.
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