Thursday, November 19, 2015

Winter Storm Watch for Mchenry Co., IL until 03:00 PM CST 11/21

WWUS43 KLOT 200303
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
903 PM CST THU NOV 19 2015

...SNOW FRIDAY NIGHT THROUGH SATURDAY WITH THE POSSIBILITY OF
SIGNIFICANT ACCUMULATION...

.THE FIRST ACCUMULATING SNOW OF THE SEASON WILL UNFOLD ACROSS THE
REGION BEGINNING FRIDAY EVENING AND PERSISTING THROUGH THE DAY
SATURDAY. PRECIPITATION WILL LIKELY TRANSITION FROM A RAIN AND
SNOW MIX EARLY FRIDAY EVENING TO ALL SNOW LATER FRIDAY NIGHT.
WARM GROUND...ESPECIALLY PAVEMENT...WILL INITIALLY LIMIT
ACCUMULATIONS ON SURFACES FRIDAY EVENING. HOWEVER SNOWFALL RATES
ARE EXPECTED TO INCREASE OVERNIGHT FRIDAY NIGHT THROUGH SATURDAY
MORNING AND WILL ALLOW FOR SNOW TO ACCUMULATE AT A QUICKER RATE.
THE POTENTIAL FOR 4 TO 8 INCHES OF SNOW CURRENTLY EXISTS ACROSS
MUCH OF THE WATCH AREA...AWAY FROM THE IMMEDIATE LAKE MICHIGAN
SHORE INCLUDING DOWNTOWN CHICAGO. THE PRECISE FORECAST TRACK AND
INTENSITY OF THIS WEATHER SYSTEM CONTINUES TO BE RESOLVED AND
WILL LIKELY CONTINUE TO LEAD TO FLUCTUATIONS IN THE PRECISE
SNOWFALL FORECAST.



/O.CON.KLOT.WS.A.0004.151121T0300Z-151121T2100Z/
MCHENRY-LAKE IL-KANE-DUPAGE-LA SALLE-KENDALL-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...AURORA...
WHEATON...OTTAWA...OSWEGO
903 PM CST THU NOV 19 2015

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY AFTERNOON...

* TIMING...A RAIN AND SNOW MIX BEGINNING FRIDAY EVENING
TRANSITIONING TO A WET SNOW AND PERSISTING THROUGH MID
AFTERNOON ON SATURDAY...WITH SNOW BRIEFLY HEAVY AT TIMES.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

* IMPACTS...POTENTIAL EXISTS FOR DIFFICULT DRIVING CONDITIONS
AND SHARPLY REDUCED VISIBILITIES.

* THE FIRST ACCUMULATING SNOW OF THE YEAR CAN CATCH MOTORISTS
OFF GUARD. ENSURE TO PLAN ACCORDINGLY AND USE EXTRA CAUTION IF
TRAVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

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