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Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
931 PM CST SAT DEC 10 2016

...SIGNIFICANT SNOWFALL EXPECTED TONIGHT THROUGH SUNDAY EVENING...

ILZ003>005-008-010>012-019>021-111100-
/O.CON.KLOT.WS.W.0005.000000T0000Z-161212T0600Z/
WINNEBAGO-BOONE-MCHENRY-OGLE-LEE-DE KALB-KANE-LA SALLE-KENDALL-
GRUNDY-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
OREGON...DIXON...DEKALB...AURORA...ELGIN...OTTAWA...OSWEGO...
MORRIS
931 PM CST SAT DEC 10 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
SUNDAY NIGHT...

* TIMING...LIGHT SNOW WILL PERSIST THROUGH SUNDAY EVENING. PERIODS
  OF MODERATE TO HEAVY SNOW ARE LIKELY...ESPECIALLY AFTER MIDNIGHT
  TONIGHT INTO EARLY SUNDAY AND AGAIN SUNDAY AFTERNOON.

* SNOW ACCUMULATIONS...THE HEAVIEST TOTALS ARE EXPECTED NORTH OF
  INTERSTATE 80 WHERE STORM TOTALS OF 7 TO 12 INCHES ARE LIKELY
  BY SUNDAY EVENING. SNOW AMOUNTS SHOULD TAPPER OFF SOUTH OF
  INTERSTATE 80 INTO THE 3 TO 6 INCH RANGE ACROSS FAR SOUTHERN
  SECTIONS OF THE WARNING AREA...WHERE THE SNOW COULD MIX WITH
  RAIN LATER SUNDAY.

* VISIBILITIES...LOOK FOR REDUCED VISIBILITIES DURING THE
  HEAVIER SNOWFALL...LIKELY BELOW A MILE AT TIMES.

* IMPACTS...PLAN ON DIFFICULT DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$



Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
345 PM CST SAT DEC 10 2016

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
112145-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
345 PM CST SAT DEC 10 2016 /445 PM EST SAT DEC 10 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

  SIGNIFICANT SNOW RISK.

DISCUSSION:

SNOW WILL DEVELOP FROM WEST TO EAST BY EARLY EVENING...THEN CONTINUE
HEAVY AT TIMES. SEVERAL INCHES OF ACCUMULATION ARE LIKELY...ESPECIALLY
NORTH OF I-80.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SUNDAY...
  ELEVATED SNOW RISK.
MONDAY...
  LIMITED EXCESSIVE COLD RISK.
  LIMITED SNOW RISK.
TUESDAY...
  ELEVATED EXCESSIVE COLD RISK.
WEDNESDAY AND THURSDAY...
  SIGNIFICANT EXCESSIVE COLD RISK.
FRIDAY...
  LIMITED EXCESSIVE COLD RISK.

DISCUSSION:

PERIODS OF SNOW WILL CONTINUE SUNDAY...WITH SEVERAL INCHES OF
ACCUMULATION. THE HIGHEST AMOUNTS ARE EXPECTED ALONG AND NORTH
OF I-80.

AN EXTENDED PERIOD OF VERY COLD WEATHER WITH SUB ZERO WIND CHILLS
IS EXPECTED TUESDAY THROUGH FRIDAY. THE MOST INTENSE COLD IS
LIKELY WEDNESDAY NIGHT AND THURSDAY MORNING WHEN WIND CHILLS OF
COLDER THAN 20 BELOW ZERO ARE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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