WINTER STORM WARNING EFFECTIVE FRIDAY 9AM TO MIDNIGHT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1018 AM CST FRI JAN 20 2012

MCHENRY-LAKE IL-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...AURORA...
WHEATON...CHICAGO
1018 AM CST FRI JAN 20 2012

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT.



* TIMING...SNOW WILL BEGIN TO FALL WITHIN THE NEXT HOUR OR TWO AND
  CONTINUE THROUGH THIS AFTERNOON...ENDING TONIGHT. THE HEAVIEST
  SNOWFALL WILL OCCUR DURING THE EARLY TO MID AFTERNOON HOURS.

* ACCUMULATIONS...SNOWFALL TOTALS OF 4 TO 7 INCHES CAN BE EXPECTED
  WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

* HAZARDS...SNOW WILL FALL HEAVILY AT TIMES RESULTING IN REDUCED
  VISIBILITIES AND SNOWFALL RATES OF AROUND ONE INCH PER HOUR AT
  TIMES.

* IMPACTS...ACCUMULATING SNOW WILL CAUSE SIGNIFICANTLY INCREASED
  TRAVEL TIMES...RESULTING IN A PARTICULARLY TREACHEROUS COMMUTE
  THIS AFTERNOON. IN ADDITION...VERY COLD TEMPERATURES IN THE
  TEENS WILL MAKE SALT LESS EFFECTIVE AND COMBINE WITH HEAVY
  SNOWFALL RATES TO MAKE IT HARDER FOR ROAD CREWS TO KEEP ROADS
  CLEAR OF SNOW AND ICE. THE SNOW WILL ALSO RESULT IN
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL AS WELL.

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.





++++++++++++++
PREVIOUS WINTER STORM WARNING ...


URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
352 AM CST FRI JAN 20 2012

MCHENRY-LAKE IL-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...AURORA...
WHEATON...CHICAGO
352 AM CST FRI JAN 20 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO MIDNIGHT CST TONIGHT...

* TIMING...SNOW WILL DEVELOP DURING THE MID TO LATE MORNING HOURS
  AND CONTINUE THROUGH THIS AFTERNOON...ENDING TONIGHT. THE
  HEAVIEST SNOWFALL WILL OCCUR THIS AFTERNOON.

* ACCUMULATIONS...SNOWFALL TOTALS OF 5 TO 8 INCHES CAN BE
  EXPECTED.

* HAZARDS...SNOW WILL FALL HEAVILY AT TIMES RESULTING IN REDUCED
  VISIBILITIES AND SNOWFALL RATES OF AROUND ONE INCH PER HOUR AT
  TIMES.

* IMPACTS...ACCUMULATING SNOW WILL CAUSE SIGNIFICANTLY INCREASED
  TRAVEL TIMES...RESULTING IN A PARTICULARLY TREACHEROUS COMMUTE
  THIS AFTERNOON. IN ADDITION...VERY COLD TEMPERATURES IN THE
  TEENS WILL MAKE SALT LESS EFFECTIVE AND COMBINE WITH HEAVY
  SNOWFALL RATES TO MAKE IT HARDER FOR ROAD CREWS TO KEEP ROADS
  CLEAR OF SNOW AND ICE. THE SNOW WILL ALSO RESULT IN SIGNIFICANT
  DISRUPTIONS TO AIR TRAVEL AS WELL.

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.