URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
839 PM CST WED FEB 22 2012
…POTENTIAL FOR HEAVY WET SNOW ACROSS NORTHERN ILLINOIS AND
NORTHWEST INDIANA THURSDAY EVENING INTO EARLY FRIDAY MORNING…
.A DEVELOPING STORM SYSTEM WILL MOVE SOUTHEAST ACROSS THE PLAINS
INTO MISSOURI AND ILLINOIS THURSDAY AND THURSDAY NIGHT.
PRECIPITATION…MAINLY IN THE FORM OF RAIN…IS EXPECTED TO
DEVELOP AHEAD OF THE SYSTEM ACROSS CENTRAL AND NORTHERN ILLINOIS
AND NORTHWEST INDIANA DURING THE DAY THURSDAY…BUT AS THE STORM
SYSTEM DEEPENS OVER THE AREA LATE THURSDAY RAIN IS EXPECTED TO
CHANGE QUICKLY TO WET SNOW AND MAY BECOME HEAVY AT TIMES. SNOWFALL
RATES MAY EXCEED AN INCH PER HOUR IN SOME LOCATIONS WITHIN THE
WATCH AREA FOR A FEW HOURS…PARTICULARLY THURSDAY EVENING. THE
STORM SYSTEM WILL MOVE EAST OF THE AREA EARLY FRIDAY…THOUGH
SNOW SHOWERS MAY LINGER THROUGH MIDDAY ESPECIALLY ACROSS NORTHWEST
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-LAKE IN-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN…AURORA…
839 PM CST WED FEB 22 2012
…WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER STORM
WATCH…WHICH IS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
* TIMING…RAIN IS EXPECTED TO CHANGE TO WET SNOW ACROSS NORTHERN
ILLINOIS TOWARD EVENING THURSDAY…AND BY EARLY EVENING ACROSS
NORTHWEST INDIANA. SNOW MAY BECOME HEAVY AT TIMES PARTICULARLY
DURING THE EVENING HOURS…BEFORE GRADUALLY TAPERING OFF FROM
WEST TO EAST LATE THURSDAY NIGHT INTO EARLY FRIDAY MORNING.
* MAIN IMPACT…HEAVY WET SNOW MAY FALL AT RATES GREATER THAN AN
INCH PER HOUR THURSDAY EVENING. THIS WILL LIKELY RESULT IN QUICK
ACCUMULATION OF WET SNOW ON ROADS…RESULTING IN SLIPPERY AND
POTENTIALLY HAZARDOUS TRAVEL CONDITIONS.
* OTHER IMPACTS…IN ADDITION TO ACCUMULATION AND SLIPPERY TRAVEL
IMPACTS…STRONG WINDS WILL RESULT IN WIND WHIPPED HEAVY WET
SNOW CAUSING SEVERELY REDUCED VISIBILITIES THURSDAY EVENING.
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
A LOT OF MELTING SUNDAY — High 44°F
Tonight: A slight chance of rain and snow showers before midnight. Cloudy, with a low around 33. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.
Thursday: Rain and snow. High near 38. East southeast wind between 5 and 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night: Snow. Low around 29. North northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday: Snow likely. Cloudy, with a high near 37. Northwest wind between 10 and 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 24. West northwest wind between 10 and 15 mph, with gusts as high as 20 mph.
Saturday: Mostly sunny, with a high near 35.
Saturday Night: Partly cloudy, with a low around 24.
Sunday: A slight chance of rain. Partly sunny and breezy, with a high near 44.
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