Blizzard Warning 1, NWS Chicago, IL

Boone County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, McHenry County, IL, Ogle County, IL, Winnebago County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

973 
WWUS43 KLOT 010206
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
806 PM CST MON JAN 31 2011

...DANGEROUS MULTIFACETED AND POTENTIALLY LIFE THREATENING WINTER
STORM TUESDAY NIGHT INTO WEDNESDAY...

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
011200-
/O.CON.KLOT.BZ.W.0001.110201T2100Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
806 PM CST MON JAN 31 2011 /906 PM EST MON JAN 31 2011/

...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM CST /4 PM EST/
TUESDAY TO 3 PM CST /4 PM EST/ WEDNESDAY...

* TIMING...SNOW WILL INCREASE IN INTENSITY AND BECOME HEAVY AT
  TIMES SOUTH OF INTERSTATE 80 TUESDAY AFTERNOON...GRADUALLY
  SPREADING NORTH INTO NORTHERN ILLINOIS BY TUESDAY EVENING.
  SNOW...WHICH WILL BE HEAVY AT TIMES...WILL CONTINUE TUESDAY
  NIGHT INTO WEDNESDAY MORNING. LAKE ENHANCED SNOW SHOWERS WILL
  CONTINUE NEAR LAKE MICHIGAN IN NORTHEAST ILLINOIS WEDNESDAY
  MORNING...SHIFTING INTO NORTHWEST INDIANA DURING THE AFTERNOON.
  NORTHEAST WINDS OF 25 TO 40 MPH WITH STRONGER GUSTS WILL RESULT
  IN BLIZZARD CONDITIONS DEVELOPING TUESDAY AFTERNOON AND
  CONTINUING THROUGH THE OVERNIGHT HOURS AND INTO WEDNESDAY.

* ACCUMULATIONS...SNOW ACCUMULATIONS IN EXCESS OF A FOOT ARE
  EXPECTED OVER MUCH OF THE AREA FROM TUESDAY AFTERNOON THROUGH
  WEDNESDAY AFTERNOON. LOCALIZED TOTALS IN EXCESS OF 20 INCHES ARE
  LIKELY...ESPECIALLY NEAR THE LAKE.

* HAZARDS...WHITE-OUT CONDITIONS ARE EXPECTED AT TIMES TUESDAY
  NIGHT AND INTO WEDNESDAY AS VERY HEAVY SNOW AND STRONG WINDS
  RESULT IN BLIZZARD CONDITIONS. SNOWFALL RATES OF AT LEAST 2 TO 3
  INCHES PER HOUR ARE POSSIBLE...ESPECIALLY WHERE THUNDER SNOW MAY
  BE PRESENT.

* IMPACTS...CONDITIONS WILL RAPIDLY DETERIORATE FROM SOUTH TO
  NORTH ACROSS THE REGION TUESDAY AFTERNOON...WITH TRAVEL LIKELY
  BECOMING VIRTUALLY IMPOSSIBLE AT TIMES TUESDAY NIGHT THROUGH
  WEDNESDAY MORNING. SNOW IS EXPECTED TO FALL SO HEAVILY AT TIMES
  TUESDAY NIGHT THAT PLOWS MAY BE UNABLE TO KEEP UP WITH THE SNOW.
  MANY SIDE STREETS AND UNTREATED ROADS WILL LIKELY BECOME
  IMPASSABLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

KREIN

874 
WWUS43 KLOT 010918
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
318 AM CST TUE FEB 1 2011

...DANGEROUS MULTIFACETED AND LIFE THREATENING WINTER STORM TO
BEGIN THIS AFTERNOON... 
...FINAL PREPARATIONS PRIOR TO THE STORM SHOULD BE COMPLETED THIS
MORNING...

ILZ019-021-023-032-033-039-INZ010-011-019-011730-
/O.EXT.KLOT.BZ.W.0001.110201T1700Z-110202T2100Z/
LA SALLE-GRUNDY-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-
BENTON-
INCLUDING THE CITIES OF...OTTAWA...MORRIS...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...MOROCCO...RENSSELAER...FOWLER
318 AM CST TUE FEB 1 2011 /418 AM EST TUE FEB 1 2011/

...BLIZZARD WARNING NOW IN EFFECT FROM 11 AM CST /NOON EST/ THIS
MORNING TO 3 PM CST /4 PM EST/ WEDNESDAY...

THE BLIZZARD WARNING IS NOW IN EFFECT FROM 11 AM CST /NOON EST/
THIS MORNING TO 3 PM CST /4 PM EST/ WEDNESDAY. 

* TIMING...ACCUMULATING SNOW WILL DEVELOP BY AROUND MIDDAY AND
  CONTINUE THROUGH TONIGHT BEFORE TAPERING OFF AND ENDING
  WEDNESDAY MORNING. THE MOST SIGNIFICANT SNOW MAY COME IN A
  COUPLE OF WAVES...WITH THE FIRST WAVE FROM MIDDAY UNTIL EVENING
  FOLLOWED BY A SECOND WAVE OF INTENSE SNOW LATER THIS EVENING
  INTO THE OVERNIGHT. 

* ACCUMULATIONS... SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES OF 1 TO 2 INCHES PER HOUR LIKELY. STORM TOTAL SNOWFALL OF
  10 TO 18 INCHES IS LIKELY...WITH LOCALIZED TOTALS UP TO TWO
  FEET NOT OUT OF THE QUESTION. SNOW MAY BECOME MIXED WITH OR
  CHANGE TO SLEET TONIGHT OVER EAST CENTRAL ILLINOIS...SHOULD SNOW
  MIX WITH OR CHANGE TO SLEET THEN THAT WOULD LIKELY RESULT IN
  LOWER ACCUMULATIONS THAN CURRENTLY FORECAST.

* WINDS...NORTHEAST WINDS WILL INCREASE TO 20 TO 35 MPH BY LATE
  THIS AFTERNOON. WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE BY
  EVENING WITH GUSTS OF 40 TO 50 MPH LIKELY TONIGHT. 

* BLIZZARD CONDITIONS...THE STRONG WINDS ALONG WITH BLOWING AND 
  OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE VISIBILITIES TO
  NEAR ZERO AT TIMES. 

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS ARE
  EXPECTED TO DEVELOP TONIGHT...RESULTING IN LOCALLY VERY INTENSE
  SNOWFALL RATES. IT IS NOT UNCOMMON FOR SNOWFALL RATES TO EXCEED
  4 INCHES PER HOUR IN THUNDERSNOW MAKING TRAVEL NEARLY
  IMPOSSIBLE.

* TRAVEL...CONDITIONS WILL RAPIDLY DETERIORATE BY MIDDAY AS SNOW
  DEVELOPS FROM SOUTH TO NORTH ACROSS THE AREA. TRAVEL IS EXPECTED
  TO BECOME TREACHEROUS BY EARLY AFTERNOON...AND EXTREMELY
  DANGEROUS BY EVENING AS WINDS INCREASE RESULTING IN WHITE OUT
  CONDITIONS. SNOWFALL RATES WILL BE SO INTENSE AT TIMES THAT ROAD
  CREWS WILL BE UNABLE TO KEEP EVEN PRIMARY ROADS AND HIGHWAYS
  CLEARED. UNNECESSARY TRAVEL SHOULD BE AVOIDED AT ALL COSTS THIS
  AFTERNOON THROUGH EARLY WEDNESDAY MORNING AS MORE THAN HALF OF
  THE FATALITIES IN PREVIOUS ILLINOIS BLIZZARDS HAVE OCCURRED AS A
  RESULT OF TRAFFIC ACCIDENTS. BEFORE MAKING THE DECISION TO
  TRAVEL...CONSIDER IF GETTING TO YOUR DESTINATION IS WORTH
  PUTTING YOUR LIFE AT RISK.

* POWER OUTAGES...THE COMBINATION OF STRONG AND GUSTY WINDS ALONG
  WITH POSSIBLY HEAVY WET SNOW COULD BRING POWER LINES DOWN
  RESULTING IN POWER OUTAGES. DUE TO THE PROLONGED NATURE OF VERY
  ADVERSE CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY OF
  PROLONGED POWER OUTAGE. 

* OTHER IMPACTS...THE HEAVY NATURE OF THE SNOW WILL MAKE SHOVELING
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND IMMEDIATELY
  FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN THE CHICAGO
  AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE SHOVELING THE
  HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND DO NOT
  UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

ILZ003>006-008-010>014-020-022-INZ001-002-011730-
/O.CON.KLOT.BZ.W.0001.110201T2100Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
KENDALL-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OSWEGO...JOLIET...GARY...VALPARAISO
318 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 PM CST WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 PM CST WEDNESDAY. 

* TIMING...ACCUMULATING SNOW WILL DEVELOP AROUND THE INTERSTATE 80
  CORRIDOR DURING THE EARLY TO MID AFTERNOON...SPREADING NORTH TO
  THE WISCONSIN STATE LINE BY MID TO LATE AFTERNOON. THE MOST
  SIGNIFICANT SNOW MAY COME IN A COUPLE OF WAVES...WITH THE FIRST
  WAVE LATE THIS AFTERNOON INTO EARLY THIS EVENING...FOLLOWED BY A
  SECOND WAVE OF INTENSE SNOW LATER THIS EVENING INTO THE
  OVERNIGHT. ACCUMULATING LAKE EFFECT SNOW SHOWERS WILL CONTINUE
  OVER NORTHEAST ILLINOIS WEDNESDAY MORNING...SPREADING INTO
  NORTHWEST INDIANA WEDNESDAY AFTERNOON. 

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES OF 1 TO 2 INCHES PER HOUR LIKELY. STORM TOTAL SNOWFALL OF
  10 TO 18 INCHES IS LIKELY TOWARD ROCKFORD AND DIXON. THE
  HEAVIEST SNOWFALL TOTALS ARE LIKELY DOWNWIND OF LAKE MICHIGAN IN
  THE CHICAGO METROPOLITAN AREA INTO NORTHWEST INDIANA WHERE 12 TO
  20 INCHES OF SNOW IS LIKELY...WITH ISOLATED AMOUNTS OF AROUND 2
  FEET POSSIBLE.

* WINDS...NORTHEAST WINDS WILL INCREASE TO 20 TO 35 MPH BY LATE
  THIS AFTERNOON. WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE BY
  EVENING WITH GUSTS OF 40 TO 50 MPH LIKELY TONIGHT. EVEN STRONGER
  WINDS ARE LIKELY NEAR THE IMMEDIATE LAKESHORE WITH SUSTAINED
  WINDS OF 30 TO 40 MPH WITH GUSTS BETWEEN 50 AND 60 MPH. 

* BLIZZARD CONDITIONS...THE STRONG WINDS ALONG WITH BLOWING AND
  OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE VISIBILITIES TO NEAR
  ZERO AT TIMES...PARTICULARLY TONIGHT.

* THUNDERSTORMS...ISOLATED SNOW PRODUCING THUNDERSTORMS ARE
  EXPECTED TO DEVELOP TONIGHT...RESULTING IN LOCALLY VERY INTENSE
  SNOWFALL RATES. IT IS NOT UNCOMMON TO SEE SNOWFALL RATES IN
  EXCESS OF 4 INCHES PER HOUR IN THUNDERSNOW MAKING TRAVEL NEARLY
  IMPOSSIBLE.

* TRAVEL...ROAD CONDITIONS WILL RAPIDLY DETERIORATE DURING THE MID
  TO LATE AFTERNOON AS SNOW DEVELOPS FROM SOUTH TO NORTH ACROSS
  THE AREA. TRAVEL IS EXPECTED TO BECOME TREACHEROUS BY LATE
  AFTERNOON...AND DOWNRIGHT DANGEROUS BY EARLY EVENING AS WINDS
  INCREASE RESULTING IN WHITE OUT CONDITIONS. SNOWFALL RATES WILL
  BE SO INTENSE AT TIMES THAT ROAD CREWS WILL BE UNABLE TO KEEP
  EVEN PRIMARY ROADS AND HIGHWAYS CLEARED. UNNECESSARY TRAVEL
  SHOULD BE AVOIDED AT ALL COSTS THIS AFTERNOON THROUGH EARLY
  WEDNESDAY MORNING AS MORE THAN HALF OF THE FATALITIES IN PREVIOUS
  ILLINOIS BLIZZARDS HAVE OCCURRED AS A RESULT OF TRAFFIC
  ACCIDENTS. BEFORE MAKING THE DECISION TO TRAVEL...CONSIDER IF
  GETTING TO YOUR DESTINATION IS WORTH PUTTING YOUR LIFE AT RISK.

* POWER OUTAGES...THE COMBINATION OF STRONG AND GUSTY WINDS ALONG
  WITH POSSIBLY HEAVY WET SNOW STICKING TO POWERLINES COULD RESULT
  IN POWER OUTAGES. DUE TO THE PROLONGED NATURE OF VERY ADVERSE
  CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY OF A PROLONGED
  DISRUPTION IN COMMERCIAL POWER.

* OTHER IMPACTS...THE HEAVY NATURE OF THE SNOW WILL MAKE SHOVELING
  EXTREMELY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN THE
  CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE
  SHOVELING THE HEAVY SNOWFALL. IF YOU MUST SHOVEL THE SNOW...TAKE
  FREQUENT BREAKS INDOORS AND DO NOT UNDERESTIMATE THE TASK AT
  HAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

IZZI

501 
WWUS43 KLOT 011726
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1126 AM CST TUE FEB 1 2011

...DANGEROUS MULTIFACETED AND LIFE THREATENING WINTER STORM...

ILZ019-021-023-032-033-039-INZ010-011-019-020130-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
LA SALLE-GRUNDY-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-
BENTON-
INCLUDING THE CITIES OF...OTTAWA...MORRIS...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...MOROCCO...RENSSELAER...FOWLER
1126 AM CST TUE FEB 1 2011 /1226 PM EST TUE FEB 1 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY. 

* TIMING...ACCUMULATING SNOW WILL DEVELOP EARLY THIS AFTERNOON AND
  CONTINUE OVERNIGHT BEFORE TAPERING OFF AND ENDING WEDNESDAY
  MORNING. THE MOST SIGNIFICANT SNOW MAY COME IN A COUPLE OF
  WAVES...WITH THE FIRST WAVE BEGINNING THIS AFTERNOON AND
  LASTING UNTIL THE EVENING FOLLOWED BY A SECOND WAVE OF INTENSE
  SNOW LATER THIS EVENING AND LASTING INTO THE OVERNIGHT HOURS.

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES LIKELY REACHING OR EXCEEDING 1 TO 2 INCHES PER HOUR. STORM
  TOTAL SNOWFALL OF 10 TO 18 INCHES IS LIKELY...WITH POSSIBLE
  LOCALIZED TOTALS UP TO TWO FEET. SNOW MAY BECOME MIXED WITH OR
  CHANGE TO SLEET TONIGHT OVER EAST CENTRAL ILLINOIS...SHOULD SNOW
  MIX WITH OR CHANGE TO SLEET THEN THAT MAY LIKELY RESULT IN
  LOWER ACCUMULATIONS THAN ARE CURRENTLY FORECAST.

* WINDS...NORTHEAST WINDS WILL INCREASE TO 20 TO 35 MPH BY LATE 
  THIS AFTERNOON. WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE BY 
  EVENING WITH GUSTS OF 40 TO 50 MPH LIKELY TONIGHT. 

* BLIZZARD CONDITIONS...THE STRONG WINDS ALONG WITH BLOWING AND 
  OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE VISIBILITIES TO 
  NEAR ZERO AT TIMES. 

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS ARE
  EXPECTED TO DEVELOP TONIGHT...RESULTING IN LOCALIZED INTENSE
  SNOWFALL RATES. IT IS NOT UNCOMMON FOR SNOWFALL RATES TO EXCEED
  4 INCHES PER HOUR IN THUNDER SNOW...MAKING TRAVEL NEARLY
  IMPOSSIBLE.

* TRAVEL...CONDITIONS WILL RAPIDLY DETERIORATE THIS AFTERNOON AS
  SNOW DEVELOPS FROM SOUTH TO NORTH ACROSS THE AREA. TRAVEL IS
  EXPECTED TO BECOME TREACHEROUS BY EARLY AFTERNOON...AND
  EXTREMELY DANGEROUS BY EVENING AS WINDS INCREASE RESULTING IN
  WHITE OUT CONDITIONS. SNOWFALL RATES WILL BE SO INTENSE AT TIMES
  THAT ROAD CREWS MAY BE UNABLE TO KEEP PRIMARY ROADS AND HIGHWAYS
  CLEARED. UNNECESSARY TRAVEL SHOULD BE AVOIDED AT ALL COSTS THIS
  EVENING THROUGH EARLY WEDNESDAY MORNING AS MORE THAN HALF OF THE
  FATALITIES IN PREVIOUS ILLINOIS BLIZZARDS HAVE OCCURRED AS A
  RESULT OF TRAFFIC ACCIDENTS. BEFORE MAKING THE DECISION TO
  TRAVEL...CONSIDER IF GETTING TO YOUR DESTINATION IS WORTH
  PUTTING YOUR LIFE AT RISK.

* POWER OUTAGES...THE COMBINATION OF STRONG AND GUSTY WINDS ALONG
  WITH POSSIBLY HEAVY WET SNOW COULD BRING POWER LINES DOWN AND
  RESULT IN POWER OUTAGES. DUE TO THE PROLONGED NATURE OF VERY
  ADVERSE CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY OF POWER
  OUTAGES.

* OTHER IMPACTS...THE HEAVY NATURE OF THE SNOW WILL MAKE 
  SHOVELING VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

ILZ003>006-008-010>014-020-022-INZ001-002-020130-
/O.CON.KLOT.BZ.W.0001.110201T2100Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
KENDALL-WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OSWEGO...JOLIET...GARY...VALPARAISO
1126 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 PM CST WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 PM CST WEDNESDAY. 

* TIMING...ACCUMULATING SNOW WILL DEVELOP AROUND THE INTERSTATE 
  80 CORRIDOR DURING THE EARLY TO MID AFTERNOON...SPREADING 
  NORTH TO THE WISCONSIN STATE LINE BY MID TO LATE AFTERNOON. 
  THE MOST SIGNIFICANT SNOW MAY COME IN A COUPLE OF WAVES...WITH 
  THE FIRST WAVE LATE THIS AFTERNOON INTO EARLY THIS EVENING...
  FOLLOWED BY A SECOND WAVE OF INTENSE SNOW LATER THIS EVENING 
  INTO THE OVERNIGHT. ACCUMULATING LAKE EFFECT SNOW SHOWERS WILL 
  CONTINUE OVER NORTHEAST ILLINOIS WEDNESDAY MORNING...SPREADING 
  INTO NORTHWEST INDIANA WEDNESDAY AFTERNOON. 

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES LIKELY REACHING OR EXCEEDING 1 TO 2 INCHES PER HOUR. STORM
  TOTAL SNOWFALL OF 10 TO 18 INCHES IS LIKELY TOWARD ROCKFORD AND
  DIXON. THE HEAVIEST SNOWFALL TOTALS ARE LIKELY DOWNWIND OF LAKE
  MICHIGAN IN THE CHICAGO METROPOLITAN AREA INTO NORTHWEST INDIANA
  WHERE 12 TO 20 INCHES OF SNOW IS LIKELY...WITH POSSIBLE
  LOCALIZED TOTALS UP TO TWO FEET.

* WINDS...NORTHEAST WINDS WILL INCREASE TO 20 TO 35 MPH BY LATE 
  THIS AFTERNOON. WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE BY 
  EVENING WITH GUSTS OF 40 TO 50 MPH LIKELY TONIGHT. EVEN 
  STRONGER WINDS ARE LIKELY NEAR THE IMMEDIATE LAKE SHORE WITH 
  SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS BETWEEN 50 AND 60 
  MPH. 

* BLIZZARD CONDITIONS...THE STRONG WINDS ALONG WITH BLOWING AND 
  OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE VISIBILITIES TO 
  NEAR ZERO AT TIMES. 

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS ARE
  EXPECTED TO DEVELOP TONIGHT...RESULTING IN LOCALIZED INTENSE
  SNOWFALL RATES. IT IS NOT UNCOMMON FOR SNOWFALL RATES TO EXCEED
  4 INCHES PER HOUR IN THUNDER SNOW MAKING TRAVEL NEARLY
  IMPOSSIBLE.

* TRAVEL...ROAD CONDITIONS WILL RAPIDLY DETERIORATE DURING THE MID
  TO LATE AFTERNOON AS SNOW DEVELOPS FROM SOUTH TO NORTH ACROSS
  THE AREA. TRAVEL IS EXPECTED TO BECOME TREACHEROUS BY LATE
  AFTERNOON...AND DOWNRIGHT DANGEROUS BY EARLY EVENING AS WINDS
  INCREASE RESULTING IN WHITE OUT CONDITIONS. SNOWFALL RATES WILL
  BE SO INTENSE AT TIMES THAT ROAD CREWS MAY BE UNABLE TO KEEP PRIMARY
  ROADS AND HIGHWAYS CLEARED. UNNECESSARY TRAVEL SHOULD BE AVOIDED
  AT ALL COSTS THIS AFTERNOON THROUGH EARLY WEDNESDAY MORNING AS
  MORE THAN HALF OF THE FATALITIES IN PREVIOUS ILLINOIS BLIZZARDS
  HAVE OCCURRED AS A RESULT OF TRAFFIC ACCIDENTS. BEFORE MAKING
  THE DECISION TO TRAVEL...CONSIDER IF GETTING TO YOUR DESTINATION
  IS WORTH PUTTING YOUR LIFE AT RISK.

* POWER OUTAGES...THE COMBINATION OF STRONG AND GUSTY WINDS 
  ALONG WITH POSSIBLY HEAVY WET SNOW STICKING TO POWER LINES 
  COULD RESULT IN POWER OUTAGES. DUE TO THE PROLONGED NATURE OF 
  VERY ADVERSE CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY 
  OF A PROLONGED DISRUPTION IN COMMERCIAL POWER. 

* OTHER IMPACTS...THE HEAVY NATURE OF THE SNOW WILL MAKE 
  SHOVELING VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

SHEA

321 
WWUS43 KLOT 012224
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
424 PM CST TUE FEB 1 2011

...DANGEROUS WINTER STORM IMPACTING THE REGION...

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
020630-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
424 PM CST TUE FEB 1 2011 /524 PM EST TUE FEB 1 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY. 

* TIMING...ACCUMULATING SNOW HAS OVERSPREAD NORTHERN ILLINOIS AND
  NORTHWEST INDIANA...SPREADING NORTH TO THE WISCONSIN STATE LINE.
  THE HEAVIEST SNOWFALL IS EXPECTED TO DEVELOP BETWEEN 7 PM AND 3
  AM WEDNESDAY MORNING ACROSS ALL OF NORTHERN ILLINOIS AND
  NORTHWEST INDIANA.  

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES LIKELY REACHING OR EXCEEDING 1 TO 2 INCHES PER HOUR. STORM
  TOTAL SNOWFALL OF 10 TO 16 INCHES IS LIKELY TOWARD ROCKFORD AND
  DIXON. THE HEAVIEST SNOWFALL TOTALS ARE LIKELY DOWNWIND OF LAKE
  MICHIGAN IN THE CHICAGO METROPOLITAN AREA INTO NORTHWEST INDIANA
  WHERE 12 TO 20 INCHES OF SNOW IS LIKELY...WITH POSSIBLE
  LOCALIZED TOTALS UP TO TWO FEET.

* WINDS...NORTHEAST WINDS FROM 20 TO 35 MPH...WITH WIND GUSTS UP
  TO 40 MPH. GUSTS WILL CONTINUE TO INCREASE LATER THIS EVENING
  AND CONTINUE OVERNIGHT TO 40 TO 50 MPH. EVEN STRONGER WINDS ARE
  LIKELY NEAR THE IMMEDIATE LAKE SHORE WITH SUSTAINED WINDS OF 30
  TO 40 MPH WITH GUSTS BETWEEN 50 AND 60 MPH.

* BLIZZARD CONDITIONS...STRONG WINDS COMBINED WITH CONSIDERABLE
  BLOWING AND OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE
  VISIBILITIES TO NEAR ZERO AT TIMES.

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS ARE 
  EXPECTED TO DEVELOP TONIGHT...RESULTING IN LOCALIZED INTENSE 
  SNOWFALL RATES. IT IS NOT UNCOMMON FOR SNOWFALL RATES TO 
  EXCEED 4 INCHES PER HOUR IN THUNDER SNOW MAKING TRAVEL NEARLY 
  IMPOSSIBLE. 

* TRAVEL...ROAD CONDITIONS WILL CONTINUE TO DETERIORATE AS SNOW
  CONTINUES TO OVERSPREAD NORTHERN ILLINOIS AND NORTHWEST INDIANA.
  TRAVEL IS EXPECTED TO REMAIN TREACHEROUS AS WINDS INCREASE
  RESULTING IN WHITE OUT CONDITIONS. UNNECESSARY TRAVEL SHOULD BE
  AVOIDED AT ALL COSTS THROUGH EARLY WEDNESDAY MORNING AS MORE
  THAN HALF OF THE FATALITIES IN BLIZZARDS HAVE OCCURRED AS A
  RESULT OF TRAFFIC ACCIDENTS. 

* POWER OUTAGES...THE COMBINATION OF STRONG AND GUSTY WINDS 
  ALONG WITH POSSIBLY HEAVY WET SNOW STICKING TO POWER LINES 
  COULD RESULT IN POWER OUTAGES. DUE TO THE PROLONGED NATURE OF 
  VERY ADVERSE CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY 
  OF A PROLONGED DISRUPTION IN COMMERCIAL POWER. 

* OTHER IMPACTS...THE HEAVY NATURE OF THE SNOW WILL MAKE 
  SHOVELING VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

BEACHLER

563 
WWUS43 KLOT 020223
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
823 PM CST TUE FEB 1 2011

...LIFE THREATENING WINTER STORM IMPACTING THE REGION...

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
021030-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
823 PM CST TUE FEB 1 2011 /923 PM EST TUE FEB 1 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY. 

* TIMING...ACCUMULATING SNOW HAS OVERSPREAD NORTHERN ILLINOIS AND
  NORTHWEST INDIANA. HEAVY SNOWFALL IS EXPECTED TO CONTINUE
  THROUGH EARLY WEDNESDAY MORNING ACROSS ALL OF NORTHERN ILLINOIS
  AND NORTHWEST INDIANA.

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION
  RATES REACHING OR EXCEEDING 1 TO 2 INCHES PER HOUR. STORM TOTAL
  SNOWFALL OF 10 TO 16 INCHES IS LIKELY TOWARD ROCKFORD AND DIXON.
  THE HEAVIEST SNOWFALL TOTALS ARE LIKELY DOWNWIND OF LAKE
  MICHIGAN IN THE CHICAGO METROPOLITAN AREA AND INTO NORTHWEST
  INDIANA WHERE 12 TO 20 INCHES OF SNOW IS LIKELY...WITH POSSIBLE
  LOCALIZED TOTALS UP TO TWO FEET.

* WINDS...NORTHEAST WINDS FROM 20 TO 35 MPH...WITH WIND GUSTS UP
  TO 50 MPH. EVEN STRONGER WINDS ARE LIKELY NEAR THE IMMEDIATE
  LAKE MICHIGAN LAKE SHORE WITH SUSTAINED WINDS OF 30 TO 40 MPH
  AND GUSTS BETWEEN 50 AND 60 MPH.

* BLIZZARD CONDITIONS...STRONG WINDS COMBINED WITH CONSIDERABLE
  BLOWING AND OCCASIONALLY HEAVY FALLING SNOW WILL REDUCE
  VISIBILITIES TO NEAR ZERO AT TIMES.

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS MAY
  RESULT IN LOCALIZED INTENSE SNOWFALL RATES. IT IS NOT UNCOMMON
  FOR SNOWFALL RATES TO EXCEED 4 INCHES PER HOUR IN THUNDER SNOW
  MAKING TRAVEL NEARLY IMPOSSIBLE.

* TRAVEL...ROAD CONDITIONS WILL BE TREACHEROUS. GUSTY WINDS WILL
  RESULT IN WHITE OUT CONDITIONS. UNNECESSARY TRAVEL SHOULD BE
  AVOIDED AT ALL COSTS THROUGH EARLY WEDNESDAY MORNING AS MORE
  THAN HALF OF THE FATALITIES IN BLIZZARDS HAVE OCCURRED AS A
  RESULT OF TRAFFIC ACCIDENTS.

* POWER OUTAGES...STRONG AND GUSTY WINDS COULD RESULT IN POWER
  OUTAGES. DUE TO THE PROLONGED NATURE OF VERY ADVERSE
  CONDITIONS...PLAN ACCORDINGLY FOR THE POSSIBILITY OF A
  PROLONGED DISRUPTION IN COMMERCIAL POWER.

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND IMMEDIATELY
  FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN THE CHICAGO
  AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE SHOVELING THE
  HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND DO NOT
  UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

RATZER

386 
WWUS43 KLOT 020440
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1040 PM CST TUE FEB 1 2011

...POTENTIALLY DEADLY BLIZZARD CRIPPLING REGION...

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
021245-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
1040 PM CST TUE FEB 1 2011 /1140 PM EST TUE FEB 1 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
WEDNESDAY. 

* TIMING...ACCUMULATING SNOW WILL CONTINUE THROUGH THE OVERNIGHT
  HOURS INTO THE EARLY MORNING HOURS WEDNESDAY. SCATTERED LAKE
  EFFECT SNOW SHOWERS ARE LIKELY TO LINGER OVER NORTHEAST ILLINOIS
  WEDNESDAY MORNING BEFORE MOVING INTO NORTHWEST INDIANA WEDNESDAY
  AFTERNOON. 

* ACCUMULATIONS...SNOW WILL BE HEAVY AT TIMES WITH ACCUMULATION 
  RATES REACHING OR EXCEEDING 1 TO 2 INCHES PER HOUR. STORM 
  TOTAL SNOWFALL OF 10 TO 16 INCHES IS LIKELY TOWARD ROCKFORD 
  AND DIXON. THE HEAVIEST SNOWFALL TOTALS ARE LIKELY DOWNWIND OF 
  LAKE MICHIGAN IN THE CHICAGO METROPOLITAN AREA AND INTO 
  NORTHWEST INDIANA WHERE 12 TO 20 INCHES OF SNOW IS LIKELY...
  WITH POSSIBLE LOCALIZED TOTALS UP TO TWO FEET. 

* WINDS...NORTHEAST WINDS FROM 25 TO 35 MPH...WITH WIND GUSTS OF
  45 TO 55 MPH. EVEN STRONGER WINDS ARE LIKELY NEAR THE IMMEDIATE
  LAKE MICHIGAN LAKE SHORE WITH SUSTAINED WINDS OF 30 TO 40 MPH
  AND GUSTS OCCASIONALLY OVER 60 MPH.

* BLIZZARD CONDITIONS...STRONG WINDS COMBINED WITH SEVERE BLOWING
  AND DRIFTING SNOW WILL RESULT IN TRUE WHITE OUT
  CONDITIONS...PARTICULARLY IN OPEN AREAS. 

* THUNDERSTORMS...ISOLATED SNOW-PRODUCING THUNDERSTORMS MAY RESULT
  IN LOCALIZED INTENSE SNOWFALL RATES. IT IS NOT UNCOMMON FOR
  SNOWFALL RATES TO EXCEED 4 INCHES PER HOUR IN THUNDER SNOW
  MAKING TRAVEL NEARLY IMPOSSIBLE. IN ADDITION...SOME OF THE
  THUNDERSTORMS HAVE BEEN PRODUCING AND COULD STILL PRODUCE SOME
  SMALL HAIL.

* TRAVEL...ROAD CONDITIONS WILL BE TREACHEROUS. DO NOT TRAVEL
  UNLESS IT IS AN EMERGENCY...AND EVEN THEN REALIZE THAT DRIVING
  IN A BLIZZARD IS PUTTING YOUR LIFE AT RISK. VISIBILITIES ARE SO
  POOR IN OPEN AREAS THAT MOTORISTS COULD BECOME DISORIENTED AND
  UNABLE TO EVEN SEE BEYOND THE HOOD OF THEIR CARS. 

* POWER OUTAGES...STRONG AND GUSTY WINDS WILL CONTINUE TO RESULT
  IN NUMEROUS POWER OUTAGES. IN ADDITION...THE ADVERSE CONDITIONS
  COULD MAKE IT DIFFICULT TO RESTORE POWER.

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING 
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

IZZI

152 
WWUS43 KLOT 021031
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
431 AM CST WED FEB 2 2011

...CRIPPLING AND POTENTIALLY KILLER BLIZZARD TO CONTINUE THIS
MORNING...

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
021845-
/O.NEW.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
431 AM CST WED FEB 2 2011 /531 AM EST WED FEB 2 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
THIS AFTERNOON...
...WIND CHILL WATCH IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND CHILL
WATCH...WHICH IS IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING. A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST
/4 PM EST/ THIS AFTERNOON. 

* TIMING...HEAVY SNOW WILL CONTINUE EARLY THIS MORNING OVER
  NORTHEAST ILLINOIS AND FAR NORTHWEST INDIANA. THE HEAVY SNOWFALL
  WILL GRADUALLY SHIFT INTO NORTHWEST INDIANA BY LATE MORNING INTO
  THE AFTERNOON. ACCUMULATING SNOWFALL SHOULD END OVER NORTH
  CENTRAL ILLINOIS EARLY THIS MORNING AND OVER NORTHEAST ILLINOIS
  BY MID TO LATE MORNING. ACCUMULATING SNOWFALL WILL END OVER
  NORTHWEST INDIANA BY MID TO LATE AFTERNOON. BLIZZARD CONDITIONS
  WILL GRADUALLY EASE AS WINDS SLOWLY SUBSIDE THIS MORNING INTO
  THE AFTERNOON.

* ACCUMULATIONS...ADDITIONAL ACCUMULATIONS THIS MORNING OF 2 TO 5
  INCHES CAN BE EXPECTED OVER THE CHICAGO METROPOLITAN AREA...AND
  OVER NORTHWEST INDIANA THROUGH THIS AFTERNOON. ELSEWHERE
  ADDITIONAL ACCUMULATIONS SHOULD BE LESS THAN TWO INCHES. STORM
  TOTAL ACCUMULATIONS WILL BE IN THE 12 TO 18 INCH RANGE OVER
  NORTH CENTRAL ILLINOIS...INCLUDING ROCKFORD AND VICINITY. STORM
  TOTALS OVER THE CHICAGO METROPOLITAN AREA SHOULD END UP IN THE
  15 TO 24 INCH RANGE...WITH TOTALS FROM NORTHWEST INDIANA
  SOUTHWEST INTO EAST CENTRAL ILLINOIS IN THE 8 TO 14 INCH RANGE.
  THE SEVERE BLOWING AND DRIFTING HAS RESULTED IN SNOW DRIFTS OF
  OVER 5 FEET IN AREAS. 

* WINDS...NORTHEAST WINDS FROM 20 TO 30 MPH...WITH WIND GUSTS TO
  40 MPH ARE LIKELY AWAY FROM THE LAKE THIS MORNING BEFORE
  SUBSIDING THIS AFTERNOON TO 10 TO 20 MPH. NEAR THE LAKE MORE
  FEROCIOUS WINDS OF 30 TO 40 MPH WITH GUSTS OVER 50 MPH ARE
  LIKELY THIS MORNING BEFORE SUBSIDING TO 15 TO 25 MPH THIS
  AFTERNOON.

* BLIZZARD CONDITIONS...FALLING AND BLOWING SNOW WITH THE INTENSE
  WINDS WILL RESULT IN WHITE OUT CONDITIONS OVER NORTHEAST
  ILLINOIS AND NORTHWEST INDIANA THIS MORNING. OVER NORTH CENTRAL
  ILLINOIS...FALLING SNOW HAS SUBSIDED HOWEVER THE STRONG WINDS
  WILL CONTINUE TO RESULT IN GROUND BLIZZARD CONDITIONS THIS
  MORNING WITH ZERO VISIBILITY IN OPEN AREAS.

* TRAVEL...LAW ENFORCEMENT OFFICIALS REPORT THAT NEARLY EVERY
  ROADWAY IS IMPASSABLE AND IN MANY CASES CLOSED. A STATE OF
  EMERGENCY HAS BEEN DECLARED AND LAW ENFORCEMENT OFFICIALS ARE
  PLEADING FOR PEOPLE TO STAY HOME AND OFF ROADWAYS. THERE HAVE
  BEEN NUMEROUS REPORTS OF CARS OFF ROADWAYS AND PEOPLE STRANDED
  AND THE EXTREME CONDITIONS ARE MAKING IT EXTREMELY DIFFICULT FOR
  RESCUE PERSONAL TO REACH THE STRANDED. VISIBILITIES ARE SO POOR
  IN OPEN AREAS THAT MOTORISTS COULD BECOME DISORIENTED AND UNABLE
  TO EVEN SEE BEYOND THE HOOD OF THEIR CARS. BEFORE CONSIDERING
  GETTING ON THE ROADS THIS MORNING...ASK YOURSELF IF GETTING TO
  YOUR DESTINATION IS WORTH RISKING YOUR LIFE. CONDITIONS WILL
  LIKELY SLOWLY IMPROVE LATER THIS MORNING INTO THE AFTERNOON AS
  WINDS SUBSIDE AND SNOW ENDS...BUT UNTIL THEN...DO NOT TRAVEL!
  
* POWER OUTAGES...STRONG AND GUSTY WINDS WILL CONTINUE TO RESULT 
  IN NUMEROUS POWER OUTAGES. IN ADDITION...THE ADVERSE 
  CONDITIONS COULD MAKE IT DIFFICULT TO RESTORE POWER. 

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING 
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

* WIND CHILLS...STRONG WINDS AND COLD TEMPERATURES ARE RESULTING
  IN VERY COLD CONDITIONS TODAY WITH WIND CHILLS NEAR ZERO.
  HOWEVER TONIGHT...BITTERLY COLD TEMPERATURES ARE LIKELY WITH
  TEMPERATURES RANGING FROM 5 BELOW DOWNTOWN TO 20 BELOW IN THE
  COLDEST OUTLYING AREAS. THE WINDS WILL SUBSIDE TONIGHT...BUT
  STILL STRONG ENOUGH TO PRODUCE WIND CHILLS OF 20 TO 40 BELOW
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

IZZI

806 
WWUS43 KLOT 021626
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1026 AM CST WED FEB 2 2011

...HISTORIC KILLER BLIZZARD TO SLOWLY LOOSEN ITS GRIP TODAY...

ILZ003>006-008-010>013-019>023-032-033-039-INZ010-011-019-030030-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
/O.CON.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...OTTAWA...
OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...WATSEKA...
PAXTON...MOROCCO...RENSSELAER...FOWLER
1026 AM CST WED FEB 2 2011 /1126 AM EST WED FEB 2 2011/

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
THIS AFTERNOON...
...WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST /10 PM EST/
THIS EVENING THROUGH THURSDAY MORNING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST /4 PM EST/
THIS AFTERNOON. A WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM
CST /10 PM EST/ THIS EVENING THROUGH THURSDAY MORNING. 

* TIMING...THE MAJORITY OF THE ACCUMULATING SNOW HAS
  ENDED...HOWEVER A GROUND BLIZZARD WILL CONTINUE INTO THE EARLY
  AFTERNOON.

* ACCUMULATIONS...LITTLE OR NO ADDITIONAL ACCUMULATION IS
  EXPECTED. 

* WINDS...NORTHERLY WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH
  WILL GRADUALLY DIMINISH TO 10 TO 20 MPH BY EVENING.

* BLIZZARD CONDITIONS...WHILE SNOWFALL HAS LARGELY ENDED...A
  GROUND BLIZZARD CONTINUES IN OPEN AREAS. BLOWING AND DRIFTING
  SNOW WILL RESULT IN VISIBILITIES NEAR ZERO IN RURAL AND OPEN
  AREAS. 

* TRAVEL...LAW ENFORCEMENT OFFICIALS CONTINUE TO REPORT THAT MANY
  ROADWAYS REMAIN IMPASSABLE DUE TO BLOWING AND DRIFTING SNOW.
  ROAD CREWS ARE WORKING HARD TO CLEAR ROADWAYS...BUT THE STRONG
  WINDS ARE RESULTING IN SNOW BLOWING BACK ONTO FRESHLY CLEANED
  ROADS. LOCAL OFFICIALS CONTINUE TO PLEAD WITH PEOPLE TO STAY
  HOME AND NOT TO TRAVEL...AS DOING SO WILL PUT YOUR LIFE AT RISK.

* POWER OUTAGES...STRONG AND GUSTY WINDS WILL CONTINUE TO RESULT 
  IN NUMEROUS POWER OUTAGES. IN ADDITION...THE ADVERSE 
  CONDITIONS COULD MAKE IT DIFFICULT TO RESTORE POWER. 

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING
  VERY DIFFICULT AND POTENTIALLY DEADLY. DURING AND IMMEDIATELY
  FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN THE CHICAGO
  AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE SHOVELING THE
  HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND DO NOT
  UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING.

* WIND CHILLS...STRONG WINDS AND COLD TEMPERATURES ARE RESULTING
  IN VERY COLD CONDITIONS TODAY WITH WIND CHILLS NEAR ZERO.
  HOWEVER TONIGHT...BITTERLY COLD TEMPERATURES ARE LIKELY WITH
  TEMPERATURES RANGING FROM 5 BELOW DOWNTOWN TO 20 BELOW IN THE
  COLDEST OUTLYING AREAS. THE WINDS WILL SUBSIDE TONIGHT...BUT
  STILL BE STRONG ENOUGH TO PRODUCE WIND CHILLS OF 20 TO 40 BELOW
  ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

ILZ014-INZ001-002-030030-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
/O.CON.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
COOK-LAKE IN-PORTER-
INCLUDING THE CITIES OF...CHICAGO...GARY...VALPARAISO
1026 AM CST WED FEB 2 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH THURSDAY MORNING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. A WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST
THIS EVENING THROUGH THURSDAY MORNING. 

* TIMING...A BAND OF HEAVY LAKE EFFECT SNOW SHOWERS WILL MOVE OUT
  OF FAR EASTERN ILLINOIS BY NOON...AND MOVE SLOWLY EASTWARD
  ACROSS FAR NORTHWEST INDIANA DURING THE AFTERNOON. SNOW SHOWERS
  SHOULD PUSH EAST OF PORTER COUNTY BY LATE AFTERNOON.

* ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES WILL
  PILE UP AS THIS LAKE EFFECT SNOW BAND MOVES ACROSS THE AREA.

* WINDS...NORTHERLY WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH
  WILL GRADUALLY DIMINISH TO 10 TO 20 MPH BY EVENING.

* BLIZZARD CONDITIONS...OUTSIDE OF THE LAKE EFFECT SNOW SHOWERS...A
  GROUND BLIZZARD CONTINUES IN OPEN AREAS. BLOWING AND DRIFTING
  SNOW WILL RESULT IN VISIBILITIES NEAR ZERO IN RURAL AND OPEN
  AREAS.

* TRAVEL...LAW ENFORCEMENT OFFICIALS CONTINUE TO REPORT THAT MANY
  ROADWAYS REMAIN IMPASSABLE DUE TO BLOWING AND DRIFTING SNOW.
  ROAD CREWS ARE WORKING HARD TO CLEAR ROADWAYS...BUT THE STRONG
  WINDS ARE RESULTING IN SNOW BLOWING BACK ONTO FRESHLY CLEANED
  ROADS. LOCAL OFFICIALS CONTINUE TO PLEAD WITH PEOPLE TO STAY
  HOME AND NOT TO TRAVEL...AS DOING SO WILL PUT YOUR LIFE AT RISK.

* POWER OUTAGES...STRONG AND GUSTY WINDS WILL CONTINUE TO RESULT
  IN NUMEROUS POWER OUTAGES. IN ADDITION...THE ADVERSE CONDITIONS
  COULD MAKE IT DIFFICULT TO RESTORE POWER. 

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING 
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

* WIND CHILLS...STRONG WINDS AND COLD TEMPERATURES ARE RESULTING 
  IN VERY COLD CONDITIONS TODAY WITH WIND CHILLS NEAR ZERO. 
  HOWEVER TONIGHT...BITTERLY COLD TEMPERATURES ARE LIKELY WITH 
  TEMPERATURES RANGING FROM 5 BELOW DOWNTOWN TO 20 BELOW IN THE 
  COLDEST OUTLYING AREAS. THE WINDS WILL SUBSIDE TONIGHT...BUT 
  STILL BE STRONG ENOUGH TO PRODUCE WIND CHILLS OF 20 TO 40 BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

IZZI

182 
WWUS43 KLOT 021916
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
116 PM CST WED FEB 2 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ010-011-019-030330-
/O.CAN.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
/O.CON.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...MOROCCO...RENSSELAER...FOWLER
116 PM CST WED FEB 2 2011 /216 PM EST WED FEB 2 2011/

...WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST /10 PM EST/
THIS EVENING THROUGH THURSDAY MORNING...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELED THE
BLIZZARD WARNING. A WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM
CST /10 PM EST/ THIS EVENING THROUGH THURSDAY MORNING. 

* WIND CHILLS...GUSTY WINDS AND COLD TEMPERATURES ARE RESULTING IN
  VERY COLD CONDITIONS TODAY WITH WIND CHILLS NEAR ZERO.
  TONIGHT...BITTERLY COLD TEMPERATURES ARE LIKELY WITH
  TEMPERATURES RANGING FROM 5 BELOW DOWNTOWN TO 20 BELOW IN THE
  COLDEST OUTLYING AREAS. THE WINDS WILL SUBSIDE TONIGHT...BUT
  STILL BE STRONG ENOUGH TO PRODUCE WIND CHILLS OF 20 TO 40 BELOW
  ZERO.

THE BLIZZARD WARNING HAS BEEN CANCELED...BUT BLOWING AND DRIFTING
SNOW CONTINUES TO PLAGUE THE REGION TODAY. GUSTS TO 30 MPH WILL
CONTINUE THROUGH THE AFTERNOON HOURS BUT WILL GRADUALLY WEAKEN
INTO THE EVENING. VISIBILITIES MAY OCCASIONALLY BE REDUCED TO A
MILE OR LESS IN BLOWING SNOW...BUT ARE NO LONGER EXPECTED TO FALL TO
A QUARTER MILE. CAUTION IS STILL URGED FOR ALL TRAVELERS TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

INZ001-002-030330-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
/O.CON.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF...GARY...VALPARAISO
116 PM CST WED FEB 2 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST THIS EVENING
THROUGH THURSDAY MORNING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON. A WIND CHILL WATCH REMAINS IN EFFECT FROM 9 PM CST
THIS EVENING THROUGH THURSDAY MORNING. 

* TIMING...A BAND OF HEAVY LAKE EFFECT SNOW SHOWERS WILL CONTINUE
  ACROSS PORTIONS OF LAKE AND PORTER COUNTY THROUGH THE EARLY
  AFTERNOON.

* ACCUMULATIONS...ADDITIONAL ACCUMULATIONS OF 2 TO 4 INCHES WILL
  CONTINUE AS THIS LAKE EFFECT SNOW BAND MOVES ACROSS THE AREA.

* WINDS...NORTHERLY WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH 
  WILL GRADUALLY DIMINISH TO 10 TO 20 MPH BY EVENING. 

* BLIZZARD CONDITIONS...BLOWING AND DRIFTING SNOW WILL RESULT IN
  VISIBILITIES NEAR ONE QUARTER MILE OR LESS IN RURAL AND OPEN
  AREAS.

* TRAVEL...LAW ENFORCEMENT OFFICIALS CONTINUE TO REPORT THAT MANY
  ROADWAYS REMAIN IMPASSABLE DUE TO BLOWING AND DRIFTING SNOW.
  ROAD CREWS ARE WORKING HARD TO CLEAR ROADWAYS...BUT THE STRONG
  WINDS ARE RESULTING IN SNOW BLOWING BACK ONTO FRESHLY CLEANED
  ROADS. LOCAL OFFICIALS CONTINUE TO PLEAD WITH PEOPLE TO STAY
  HOME AND NOT TO TRAVEL...AS DOING SO WILL PUT YOUR LIFE AT RISK.

* OTHER IMPACTS...THE DEEP SNOW ACCUMULATION WILL MAKE SHOVELING 
  VERY DIFFICULT...AND POTENTIALLY DEADLY. DURING AND 
  IMMEDIATELY FOLLOWING THE BLIZZARD OF 1999 OVER 40 PEOPLE IN 
  THE CHICAGO AREA ALONE LOST THEIR LIVES TO HEART ATTACKS WHILE 
  SHOVELING THE HEAVY SNOWFALL. TAKE FREQUENT BREAKS INDOORS AND 
  DO NOT UNDERESTIMATE THE TASK AT HAND WHEN SHOVELING. 

* WIND CHILLS...STRONG WINDS AND COLD TEMPERATURES ARE RESULTING
  IN VERY COLD CONDITIONS TODAY WITH WIND CHILLS NEAR ZERO.
  TONIGHT...BITTERLY COLD TEMPERATURES ARE LIKELY WITH
  TEMPERATURES TO 20 BELOW IN THE OUTLYING AREAS. THE WINDS WILL
  SUBSIDE TONIGHT...BUT STILL BE STRONG ENOUGH TO PRODUCE WIND
  CHILLS OF 20 TO 40 BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL! IF
YOU ABSOLUTELY MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU.
IF YOU GET STRANDED...STAY WITH YOUR VEHICLE.

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

SHEA

208 
WWUS43 KLOT 022126
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
326 PM CST WED FEB 2 2011

INZ001-002-030530-
/O.EXP.KLOT.BZ.W.0001.000000T0000Z-110202T2100Z/
/O.UPG.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
/O.NEW.KLOT.WC.Y.0002.110203T0300Z-110203T1800Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF...GARY...VALPARAISO
326 PM CST WED FEB 2 2011

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
CST THURSDAY...
...BLIZZARD WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST
THURSDAY. THE BLIZZARD WARNING IS NO LONGER IN EFFECT. THE WIND
CHILL WATCH IS NO LONGER IN EFFECT. 

* TIMING...9 PM CST THIS EVENING UNTIL NOON CST THURSDAY.

* WIND CHILLS...20 TO 25 BELOW ZERO.

* IMPACTS...FROSTBITE COULD QUICKLY DEVELOP ON EXPOSED SKIN.
  HYPOTHERMIA COULD QUICKLY SET IN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

&&

$$

ILZ003>006-008-010>014-019>023-032-033-039-INZ010-011-019-030530-
/O.UPG.KLOT.WC.A.0001.110203T0300Z-110203T1800Z/
/O.NEW.KLOT.WC.Y.0002.110203T0300Z-110203T1800Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...MOROCCO...RENSSELAER...FOWLER
326 PM CST WED FEB 2 2011 /426 PM EST WED FEB 2 2011/

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM CST /10 PM EST/ THIS
EVENING TO NOON CST /1 PM EST/ THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 PM CST /10 PM EST/ THIS
EVENING TO NOON CST /1 PM EST/ THURSDAY. THE WIND CHILL WATCH IS
NO LONGER IN EFFECT. 

* TIMING...9 PM CST THIS EVENING UNTIL NOON CST THURSDAY.

* WIND CHILLS...20 TO 25 BELOW ZERO ACROSS NORTHEAST ILLINOIS AND
  NORTHWEST INDIANA AND 25 TO 30 BELOW ZERO ACROSS NORTH CENTRAL
  ILLINOIS WEST OF THE CHICAGO METRO AND INTERSTATE 55.

* IMPACTS...FROSTBITE COULD QUICKLY DEVELOP ON EXPOSED SKIN.
  HYPOTHERMIA COULD QUICKLY SET IN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

&&

$$

MDB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
210 PM CST MON JAN 31 2011

.DISCUSSION...
1134 AM CST

ADJUSTED AFTERNOON TEMPS UP A COUPLE OF DEGREES IN LOCATIONS. IR
IMAGERY SHOWS SOME THINNING IN THE CLOUDS OVER CENTRAL/NORTHERN
IL. LGT SNOW HAS CONTINUED TO PROGRESS EAST ACROSS IA...AND SHUD
PUSH INTO NORTHERN ILLINOIS LATER THIS MORNING/AFTERNOON HOURS.
THEN THE FOCUS REMAINS ON THE MAJOR WINTER STORM TO IMPACT THE
REGION TUESDAY NIGHT INTO WEDNESDAY.

BEACHLER

//PREV DISCUSSION...
SHORT TERM (MONDAY THROUGH WEDNESDAY)....

THE HEADLINER OF WINTER EVENTS DOESNT ARRIVE UNTIL TUESDAY
AFTERNOON...HOWEVER FIRST WE GET TO DEAL WITH OPENING ACT
TONIGHT...

LEAD SHORTWAVE IN THE SOUTHWESTERLY FLOW ALOFT IS SEEN ON WATER
VAPOR IMAGERY EARLY THIS MORNING MOVING WESTERN KS/PANHANDLE REGION.
AS THIS SHORTWAVE RIDES SW FLOW INTO THE REGION TONIGHT LOOK FOR
SNOW TO BREAK OUT AS IT BEGINS TO TAP INTO BETTER MOISTURE SUPPLY AS
A RESULT OF 30-40KT LOW LEVEL JET. BROAD REGION OF ISENTROPIC ASCENT
AND LACK OF WELL DEFINED FOCUS MAKES QPF FORECAST TONIGHT
TRICKY...HOWEVER MODELS DO SEEM TO BE KEYING IN ON ZONE OF
STRENGTHENING LOW LEVEL FRONTOGENESIS OVER SOUTHERN CWA FOR SOMEWHAT
HIGHER QPF AMOUNTS. SOUTHERN CWA WILL ALSO HAVE WARMER TEMP PROFILE
AND WITH MODELS FREQUENTLY UNDERESTIMATING MAGNITUDE OF WARMING IN
STRONG WAA REGIMES HAVE OPTED TO INTRODUCE CHC OF SLEET WITH THE
SNOW OVER FAR SOUTHERN CWA TONIGHT.

WARMER THERMAL PROFILE AND POTENTIAL FOR SLEET BOTH ARGUE FOR LOWER
SNOW:LIQUID RATIOS SOUTH WHERE HIGHER QPF OCCURS. WHILE LOWER QPF
AND HIGHER SLR'S FARTHER NORTH SUPPORT SIMILAR SNOWFALL TOTALS AND
GENERALLY STICKING WITH A 1-3 INCH FORECAST TONIGHT...THOUGH LOCAL 4
INCH AMOUNTS WOULDNT BE AT ALL SURPRISING. LEAD SHORTWAVE MOVES EAST
OF THE AREA BY EARLY TUESDAY MORNING WITH SNOW TAPERING OFF/ENDING
AND POSSIBLY EVEN TRANSITIONING TO A PERIOD OF FREEZING DRIZZLE
TUESDAY MORNING INTO THE EARLY AFTERNOON.

HOPEFULLY ANY FRDZ WILL BE INSIGNIFICANT ENOUGH TO PROVIDE ROAD
CREWS A CHANCE TO CATCH A FEW HOURS OF SLEEP EARLY TUESDAY BEFORE
THE BIG HULLABALOO STARTS TUESDAY. OVERALL AGREEMENT IN MODELS ON
SYNOPTIC DETAILS ASSOCIATED WITH THIS SYSTEM ARE EXCELLENT...WITH
JUST THE 00Z NAM A LITTLE WEAKER/FASTER WITH THE SYSTEM AND LARGELY
BEING DISCOUNTED.

I CANNOT STRESS THIS POINT ENOUGH:
MODEL ACCURACY AT THIS DISTANCE IS NOT SUCH THAT ITS WISE TO OFFER
ANY DEGREE OF CERTAINTY WITH RESPECT TO SNOWFALL TOTALS. STRONG
SYNOPTIC SYSTEMS...SUCH AS THIS ONE...WHERE MID-LEVEL DRY INTRUSIONS
TYPICALLY RESULT IN VERY TIGHT GRADIENTS IN SNOWFALL TOTALS ALONG
THE SOUTH EDGE OF THE HEAVY SNOW BAND. EVEN WITH VERY STRONG MODEL
AGREEMENT...IT IS NOT UNCOMMON TO SEE FORECAST STORM TRACKS IN MODELS
SHIFT BY 100 MILES OR MORE IN AS LITTLE AS 24 HOURS FROM THE ARRIVAL
OF THE STORM WITH RAPIDLY DEEPENING/OCCLUDING LOWS. SUCH A SHIFT IN
STORM TRACK COULD RESULT IN AREAS FORECAST TO GET 1 TO 2 FEET OF
SNOW ENDING UP DRY SLOTTED WITH DRASTICALLY LIGHTER ACCUMULATIONS.
GIVEN THE LINGERING UNCERTAINTY...NO PLANS TO MAKE UPGRADE ANY OF
THE WATCH AT THIS TIME. HAVING SAID ALL THIS...HERE ARE THE
HIGHLIGHTS OF THE STORM AS THEY APPEAR NOW...

SNOWFALL:
INTENSE 60KT LOW LEVEL JET WILL BE VERY EFFICIENT IN TRANSPORTING
GULF MOISTURE NORTHWARD...SUPPLYING THE CYCLONE WITH AMPLE MOISTURE
BOTH WITHIN THE WARM CONVEYOR BELT AND WITHIN THE DEVELOPING
TROWAL/DEFORMATION ZONE. QPF IN REASONABLY GOOD AGREEMENT AMONG THE
VARIOUS MODELS AND USING A REASONABLY CONSERVATIVE 10-12:1 SLR
RESULTS IN SNOWFALL TOTALS OF 8-14 INCHES TUESDAY NIGHT ALONE.
PROBABLY WORTH NOTING THAT CALCULATING/MEASURING THE ACTUAL
SNOW:LIQUID RATION THAT OCCURS MAY WELL BE DIFFICULT OR NEARLY
IMPOSSIBLE GIVEN THE EXTENT OF BLOWING/DRIFTING EXPECTED. IN
ADDITION...VERY STRONG WINDS COULD RIP DENDRITES APART...FURTHER
LOWERING THE EFFECTIVE SNOW:LIQUID RATIO.

SOME ADDITIONAL ACCUMULATING SNOW IS LIKELY WEDNESDAY MORNING...WITH
HEAVIEST TOTALS DOWNWIND OF LAKE MICHIGAN IN NE IL AS IMPROVING
THERMAL PROFILES RESULT IN INCREASINGLY FAVORABLY LAKE EFFECT SET
UP. LAKE EFFECT SHOULD SHIFT EAST INTO NW INDIANA DURING THE
AFTERNOON WEDNESDAY WITH STRENGTHENING COLD AIR ADVECTION RESULTING
IN INTENSIFYING LAKE EFFECT SNOW SHOWERS. LAKE EFFECT ALONE COULD
RESULT IN SEVERAL MORE INCHES OF ACCUMULATION IN NE IL AND PROBABLY
MORE THAN THAT IN NW INDIANA. AS MENTIONED EARLIER THERE WILL BE A
SHARP NORTH-SOUTH SNOWFALL GRADIENT AND WITH GFS/WRF-NAM BOTH
SUGGESTING DRY INTRUSION MAKING IT INTO SOUTHERN CWA LATE TUES
NIGHT...CONFIDENCE IN TOTALS OVER A FOOT CWA-WIDE IS MODERATE.

WIND:
DEEPENING LOW SHOULD RESULT IN STRONG PRESSURE GRADIENT TUESDAY
NIGHT...WITH STRONG WINDS CONTINUING INTO WEDNESDAY AS STRONG
ISALLOBARIC COMPONENT KICKS IN WITH QUICK DEPARTURE AND FILLING OF
THE LOW. FORECAST SOUNDINGS FROM 00Z GUIDANCE SUGGESTS WINDS WILL
INCREASE TO 25-35 MPH WITH GUSTS OF 40 TO POSSIBLY 50 MPH COMMON.
HOWEVER...NEAR THE LAKE WINDS WILL BE EVEN STRONGER...PROBABLY
30-40 MPH SUSTAINED WITH GUSTS OF 50-60 MPH POSSIBLE.

BLIZZARD CONDITIONS:
VERY HIGH QPF TOTALS RAISE DOUBTS ABOUT THE BLOW-ABILITY OF THE SNOW
THAT FALLS. HOWEVER SNOWFALL RATES OF 2-3 INCHES PER HOUR APPEAR
LIKELY FOR A TIME TUESDAY NIGHT WHICH WILL PROBABLY BE ENOUGH TO
KNOCK VISIBILITIES DOWN TO LESS THAN 1/4SM SATISFYING THE BLIZZARD
WARNING CRITERIA. FURTHER INCREASING THE THREAT OF NEAR ZERO
VISIBILITIES IS THE POTENTIAL FOR THUNDERSNOW. WILL BE A VERY
DYNAMIC STORM SYSTEM WITH INTENSE UPWARD VERTICAL VELOCITIES AS
INTENSE FRONTOGENESIS WORKS IN CONCERT WITH TREMENDOUS UPWARD MOTION
RESULTING FROM FAST MOVING...RAPIDLY DEEPENING/CLOSING OFF MID LEVEL
CIRCULATION BECOMING NEGATIVELY TILTED AS IT APPROACHES FROM THE
SOUTH. FORECAST SOUNDINGS SUGGEST THAT 700-500MB LAPSE RATES WITHIN
THE DRY INTRUSION WILL INCREASE TO BETWEEN 7 AND 8C/KM...WITH SOME OF
THAT INSTABILITY LIKELY GETTING TAPPED INTO AND PROBABLY RESULTING
IN EMBEDDED THUNDERSTORMS.

LAKESHORE FLOODING:
NORTHEAST WINDS PROGGED TO INCREASE TO 30-40 MPH WITH GUSTS OF 50-60
MPH MAKES LAKESHORE FLOODING A BIG CONCERN. HIGH RESOLUTION MODIS
VISIBLE SATELLITE IMAGERY FROM JAN 28TH SHOWED THAT ICE THAT HAD
ACCUMULATED NEAR THE IL SHORE HAD BEEN BLOWN WELL OFFSHORE...AND
APPEARED SOMEWHAT FRAGMENTED IN NATURE EAST OF THE ILLINOIS SHORE.
THERE IS SOME UNCERTAINTY WITH RESPECT TO HOW MUCH THAT ICE WILL
RETARD WAVE DEVELOPMENT NEAR THE SHORE...BUT WITH 14-18FT
SIGNIFICANT WAVES AND OCCASIONAL WAVES OVER 25FT OFFSHORE
POTENTIALLY TAKING A TOLL ON ICE HAVE OPTED TO ERR ON THE SIDE OF
CAUTION AND HOIST A LAKESHORE FLOOD WATCH. ITS POSSIBLE THAT ICE
COULD MITIGATE THE COASTAL FLOOD POTENTIAL...BUT HARD TO SAY FOR
SURE AND IF ICE ISNT A BIG DETERRENT THEN THE COASTAL FLOODING COULD
BE VERY SIGNIFICANT.

IZZI

LONG TERM (WEDNESDAY NIGHT ONWARD)...

MONDAY... THE 850 MB PROFILER DATA AT 07 UTC SHOWS THE
WIND BECOMING SOUTH OVER CENTRAL ILLINOIS. THE WARM AIR ADVECTION
IS BEGINNING AND WE EXPECT IT TO CONTINUE THIS AFTERNOON. WE WILL
FORECAST HIGH TEMPERATURES IN 20 TO 25 RANGE TODAY AND TUESDAY. A
SMALL 500 MB RIDGE WILL MOVE OVER ILLINOIS AND NORTHWEST INDIANA
TODAY. THE FORECAST FRONTOGENESIS VECTORS AT 850 MB SHOW A FRONT
DEVELOPING ALOFT LATER TODAY. THIS IS SEEN USING OUR LOCAL WRF.
THIS LOCAL WRF IS FORECASTING SNOW TONIGHT. WITH THE WARM AIR
ADVECTION THERE MAY SOME FREEZING DRIZZLE TUESDAY MORNING.

TUESDAY THROUGH WEDNESDAY...THE LONGWAVE TROUGH WILL CONTINUE TO DIG
IN ARIZONA AND NEW MEXICO. HEIGHT FALLS WERE LARGE OVER ARIZONA
AT 00 UTC. A 70 KNOT JET STREAK WAS SEEN MOVING INTO THE NORTHERN
CALIFORNIA COAST AT 00 UTC. SEEN ON THE WATER VAPOR LOOPS THIS JET
IS MOVING INTO SOUTHERN CALIFORNIA ON THE WEST SIDE OF THE
LONGWAVE. WARM AIR ADVECTION OVER TEXAS AND NEW MEXICO EXTENDS
INTO KANSAS AND OKLAHOMA BY 07 UTC. THERE WILL BE AN INCREASE OF
KINETIC ENERGY WITH THIS WAVE AND A CYCLONE IS FORECAST TO
DEVELOP OVER TEXAS. THE 07 UTC SURFACE MAP SHOWS AN INCREASE IN
THE SURFACE TEMPERATURE GRADIENT OVER ARKANSAS THROUGH WEST
VIRGINIA. VERY COLD AIR IS SEEN MOVING INTO MONTANA AND THE
DAKOTAS. THIS CYCLONE IS FORECAST TO BECOME INTENSE OVER SOUTHERN
ILLINOIS OR SOUTH CENTRAL INDIANA TUESDAY NIGHT. THE 300 MB JET
STREAK IS EXPECTED TO COUPLE WITH THE POLAR JET OVER THE GREAT
LAKES. THE LOCATION OF THE TWO JET MAXIMUM WIND SPEEDS MAY PLACE
THE MAXIMUM UPPER AIR DIVERGENCE IN A BAND OVER CENTRAL ILLINOIS
TO NORTHERN INDIANA. SOME CONVEYOR BELT PRECIPITATION WILL OCCUR
ALSO. THIS IS SEEN IN THE FORECAST FROM THE ECMWF AND GFS MODELS
ISENTROPIC SURFACE FORECASTS AND WIND FORECAST AT 300 MB. THE 200
MB ANALYSIS SHOW COLD AIR OVER THE REGION FROM NORTHERN COLORADO
TO NORTHERN OHIO AT 00 UTC. THERE IS WARM AIR ADVECTION IN ALL OF
THE WESTERN UNITED STATES AND BRITISH COLUMBIA. THIS IS MORE
EVIDENCE OF THE STRENGTH OF THE DEVELOPING 500 MB LONG WAVE
TROUGH. THE LOW TEMPERATURE WILL BE IN THE TEENS. WITH THE SNOW
OCCURRING WE EXPECT THE TEMPERATURES TO BE IN THE MIDDLE 20S
WEDNESDAY. BUT LATE WEDNESDAY AND WEDNESDAY NIGHT THE TEMPERATURES
MAY FALL TO BELOW ZERO IN NORTH CENTRAL ILLINOIS TO NORTHWEST
INDIANA. SINGLE DIGITS ARE FORECAST FOR ALONG THE LAKE SHORE. THE
NORTHWEST WIND WILL SET UP A LAKE EFFECT SNOW OVER NORTHWEST
INDIANA WEDNESDAY NIGHT.

THURSDAY THROUGH SUNDAY...AS THE CYCLONE MOVES INTO OHIO AND
PENNSYLVANIA BY WEDNESDAY NIGHT. VERY COLD AIR WILL MOVE INTO
NORTHERN ILLINOIS AND NORTHWEST INDIANA. STRONG NORTHWEST WINDS
WILL SET UP A SIGNIFICANT LAKE SNOW FOR NORTHWEST INDIANA EARLY
THURSDAY. A LARGE HIGH WILL MOVE INTO NEBRASKA TO NORTHERN TEXAS.
THIS HIGH WAS A VERY COLD CONTINENTAL ARCTIC AIR MASS IN MANITOBA
AND SASKATCHEWAN AT 07 UTC TODAY. AS THIS AIR MASS MOVES SOUTH IT
WILL MODIFY A LITTLE...BUT THE COLD AIR WILL BE OVER A LARGE AND
DEEP SNOW PACK. WE WILL FORECAST SINGLE DIGIT HIGH TEMPERATURES
FOR THURSDAY. BY FRIDAY...A WEST WIND IS FORECAST OVER IOWA AND
ILLINOIS. THE TEMPERATURES MAY BE IN THE 20S FRIDAY. THE 500 MB
LONG WAVE TROUGH WILL BE MOVING THROUGH ILLINOIS AND INDIANA
FRIDAY. BY SATURDAY...THE TROUGH IS EXPECTED TO BE OVER OHIO AND
PENNSYLVANIA. WE USED THE ECMWF AND GFS MODELS FOR THIS FORECAST.
A RIDGE IS EXPECTED TO BUILD OVER IOWA AND MINNESOTA WHICH IS A
REFLECTION OF THE WARM AIR ADVECTION AT THE SURFACE TO 700 MB. WE
WILL FORECAST A SLIGHT CHANCE OF SNOW SATURDAY WITH THE HIGH
TEMPERATURES IN THE MIDDLE 20S. THE HIGH TEMPERATURES WILL BE IN
THE UPPER 20S SUNDAY.

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 20Z...

* SCT 020-030 CLOUDS THROUGH AFTERNOON WITH SOME POTENTIAL FOR
  SHORT BKN PERIODS.

* TIMING OF ARRIVAL OF LIGHT SNOW BY EVENING.

* CEILING/VISIBILITY TRENDS LATE TONIGHT THROUGH THE DAY TUESDAY.

* LOW CHANCE FOR -FZDZ LATE TUE MORNING-EARLY TUE AFTERNOON.

* TIMING OF ARRIVAL OF HEAVIER SNOW LATER TUESDAY.

* EAST WINDS BECOMING NORTHEAST AND GRADUALLY INCREASING INTO
  TUESDAY AFTERNOON.

MDB

//DISCUSSION...UPDATED 20Z...

COMPLEX FORECAST THROUGH THE PERIOD WITH MAIN CONCERNS REVOLVING
AROUND LIGHT SNOW TIMING LATE THIS AFTERNOON/EARLY THIS EVENING AND
THEN CIG/VSBY AND PRECIP TRENDS LATE TONIGHT INTO TUESDAY
AFTERNOON.

VFR CONDS PREVAIL ACROSS MOST OF THE AREA THIS AFTERNOON WITH THE
EXCEPTION OF MVFR CIGS FROM RFD EASTWARD TOWARDS UGN. OTHERWISE
SCT 020-030 CLOUDS LINGER JUST TO THE SOUTH OF THESE AREAS OR FROM
CHICAGO WEST. EXPECT THAT VFR WILL REMAIN THOUGH SHORT PERIODS OF
BKN MVFR CIGS WILL OCCUR. EAST WINDS WILL GRADUALLY SHIFT
NORTHEAST AND INCREASE IN SPEED THROUGH THIS EVENING. SNOW
FORECAST THIS EVENING IS A CHALLENGE WITH THE AREA LOOKING TO FALL
BETWEEN TWO AREAS OF ORGANIZED FORCING. RADAR SHOWS AN INCREASE IN
THE COVERAGE OF PRECIP MOVING NORTHEASTWARD TOWARDS THE AREA AND HAVE
MADE SOME TWEAKS TO TIMING OF ARRIVAL BASED ON THE LATEST TRENDS.
THE HEAVIEST SNOW LOOKS TO FALL OVER A 2-4 HOUR PERIOD DURING THE
EARLY EVENING. AMOUNTS IN THE 1-3 INCH RANGE STILL LOOK ON TRACK.
THERE COULD BE BRIEF PERIODS WHERE ACCUMULATION RATES REACH 0.5
IN/HR BUT CONFIDENCE IN THIS IS LOW. IFR VSBY IS EXPECTED WITH AT
LEAST SPORADIC IFR CIGS.

SNOW SHOULD WIND DOWN EARLY TONIGHT THOUGH LIGHT SNOW MAY LINGER.
WILL CONTINUE WITH IDEA OF CIGS IMPROVING TO MVFR BUT THIS MAY BE
OPTIMISTIC. CIGS WILL LOWER SOMETIME TUESDAY MORNING IF THEY DO
RECOVER OVERNIGHT. WINDS WILL BECOME GUSTY OVERNIGHT WITH SOME
LIGHT BLOWING SNOW BUT EXPECT MINIMAL IMPACT ON VSBY. VSBY MAY
REMAIN MVFR IN MIST AND LIGHT SNOW BUT THE DETAILS MAY NEED
ADJUSTMENT. THERE IS A LOW CHANCE FOR SOME -FZDZ LATER TUESDAY
MORNING AS MID LEVEL DRYING MAY OCCUR BUT CONFIDENCE IN LOW IN
OCCURRENCE. WINDS WILL STEADILY INCREASE THROUGH THE DAY TUESDAY
WITH BLOWING SNOW BECOMING MORE OF AN ISSUE.

NEXT ISSUE WILL BE TIMING THE ARRIVAL OF THE HEAVIER SNOW TUESDAY
AFTERNOON/EVENING. RIGHT NOW IT APPEARS THAT IT WILL TAKE UNTIL
CLOSER TO 00Z FOR THE HEAVIER SNOW TO REACH THE TERMINALS. ONCE IT
DOES IT WILL ONLY INCREASE IN INTENSITY. THE HEAVIEST PERIOD WILL
BE TUESDAY EVENING AND NIGHT WITH ACCUMULATION RATES OF 2-3 INCHES
PER HOUR A REAL POSSIBILITY. NORTHEAST WINDS WILL CONTINUE TO
INCREASE WITH GUSTS TO 40 KTS OR BETTER POSSIBLE. VSBY DOWN TO
ZERO IS ALSO POSSIBLE IN A COMBINATION OF HEAVY SNOW AND BLOWING
SNOW.

MDB

//ORD AND MDW CONFIDENCE...UPDATED 20Z...

* HIGH CONFIDENCE IN SCT020-030 CLOUDS LINGERING WITH HIGH
  CONFIDENCE THAT ANY BKN PERIODS WOULD BE SHORT.

* MEDIUM-HIGH CONFIDENCE IN TIMING OF ARRIVAL OF LIGHT SNOW LATE THIS
  AFTERNOON.

* LOW-MEDIUM CONFIDENCE IN CEILING/VISIBILITY LATE TONIGHT THROUGH
  TUESDAY AFTERNOON.

* LOW CONFIDENCE IN THREAT FOR -FZDZ POTENTIAL TUE MORNING/EARLY
  TUE AFTERNOON.

* HIGH CONFIDENCE IN WIND FORECAST THROUGH THE PERIOD.

MDB

//OUTLOOK FOR ORD/MDW FOR 00Z WEDNESDAY-12Z MONDAY...UPDATED 18Z...

TUESDAY NIGHT...LIFR/VLIFR DUE +SN BLSN. NE WIND 25-35KT GUSTING
35-45 KT. HEAVY SNOWFALL WITH ACCUMULATION RATES OF 2-3 IN/HR POSSIBLE.

WEDNESDAY...LIFR DUE +SN BLSN...IMPROVING DURING DAY TO VFR BY EVE.

THURSDAY...NO SIG WX.

FRIDAY...NO SIG WX.

SATURDAY...NO SIG WX.

SUNDAY...SLGT CHC -SN RESULTING IN MVFR.

MDB/TRS

&&

.MARINE...

325 AM...HIGH END GALES EXPECTED TUESDAY NIGHT AND WEDNESDAY.

MANY FORECAST CHALLENGES MAINLY DEALING WITH STRONG WINTER STORM
THAT WILL IMPACT THE REGION THIS WEEK. MAIN VORT ASSOCD WITH THIS
SYSTEM CURRENTLY OVER SOUTHWEST US. SFC LOW WILL EMERGE OVER TEXAS
EARLY TUESDAY MORNING AND TRACK NORTHEAST...DEEPENING AS IT MOVES
ACROSS THE OHIO RIVER VALLEY LATE TUESDAY NIGHT. MEANWHILE...STRONG
AREA OF HIGH PRESSURE WILL BUILD ACROSS THE NORTHERN PLAINS SETTING
UP TIGHT PRESSURE GRADIENT WHICH WILL LEAD TO GALES ACROSS LAKE
MICHIGAN. HEAVY SNOW...AND HEAVY FREEZING SPRAY WILL ALSO BE PART OF
THE FORECAST FOR THE FIRST HALF OF THE WEEK.

FOR MONDAY THROUGH EARLY TUESDAY...RIDGE OF HIGH PRESSURE EXTENDS
ACROSS THE GREAT LAKES WITH EAST TO NORTHEASTERLY FLOW ACROSS THE
LAKE. WINDS WILL GRADUALLY INCREASE...ESPECIALLY AS WE HEAD THROUGH
THE DAY TUESDAY AS AREA OF LOW PRESSURE DEVELOPS ACROSS THE
SOUTH-CENTRAL CONUS. AREA OF WARM ADVECTION SNOWFALL WILL DEVELOP
ACROSS THE SOUTHERN HALF OF LAKE MICHIGAN EARLY TUESDAY MORNING
BEFORE A BRIEF LULL IN THE PRECIPITATION TUESDAY AFTERNOON.

TUESDAY AFTERNOON THROUGH WEDNESDAY WILL SEE THE WORST CONDITIONS.
STRONG FORCING WILL LEAD TO PERIODS OF MODERATE AND HEAVY SNOWFALL.
TIGHT PRESSURE GRADIENT WILL LEAD TO GALES BEGINNING OVER SOUTHERN
LAKE MICHIGAN TUESDAY AFTERNOON AND ACROSS THE ENTIRE LAKE BY
TUESDAY EVENING. MODEL GUIDANCE CONTINUES TO SHOW NORTHERLY WINDS
GUSTING TO AROUND 45 KTS ACROSS THE SOUTHERN HALF OF THE LAKE EARLY
WEDNESDAY MORNING. GUSTS STILL LOOK LIKE THEY WILL APPROACH STORM
FORCE CRITERIA. LATEST NAM GUIDANCE ACTUALLY BACKED OFF A COUPLE
KNOTS WHILE GFS WENT STRONGER SHOWING STORM FORCE WINDS FOR ABOUT 6
HRS OR SO AFTER MIDNIGHT TUESDAY NIGHT. MODELS CONTINUE TO BOUNCE
AROUND ON THE TRACK OF LOW...SO WILL HOLD OFF FOR NOW ON UPGRADE TO
STORM WATCH. COLD AIR ADVECTING OVER THE LAKE DURING THIS TIME WILL
LEAD TO HEAVY FREEZING SPRAY.

ICE...WHICH MOVED FARTHER OFFSHORE THIS WEEKEND...SHOULD BE PUSHED
BACK INTO THE NEARSHORE ZONES AS WIND SPEEDS INCREASE. THIS SHOULD
PROHIBIT WAVE ACTION IN THE NEARSHORES DURING THE PERIOD OF
STRONGEST WINDS.

BMD

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...BLIZZARD WATCH...ILZ003-ILZ004-ILZ005-ILZ006-ILZ008-ILZ010-
     ILZ011-ILZ012-ILZ013-ILZ014-ILZ019-ILZ020-ILZ021-ILZ022-
     ILZ023-ILZ032-ILZ033-ILZ039...NOON TUESDAY TO 6 PM
     WEDNESDAY.

     LAKESHORE FLOOD WATCH...ILZ006-ILZ014...6 PM TUESDAY TO 3 PM
     WEDNESDAY.

IN...BLIZZARD WATCH...INZ001-INZ002-INZ010-INZ011-INZ019...NOON
     TUESDAY TO 6 PM WEDNESDAY.

LM...GALE WATCH...LMZ080-LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ740-
     LMZ741-LMZ742-LMZ743-LMZ744-LMZ745-LMZ777-LMZ779-LMZ868-
     LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...NOON TUESDAY TO 6 PM
     WEDNESDAY.

     HEAVY FREEZING SPRAY WATCH...LMZ080-LMZ567-LMZ669-LMZ671-LMZ673-
     LMZ675-LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-LMZ745-LMZ777-
     LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...NOON
     TUESDAY TO 6 PM WEDNESDAY.

     GALE WATCH...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565...6 PM
     TUESDAY TO 6 PM WEDNESDAY.

     SMALL CRAFT ADVISORY...NEARSHORE WATERS
     UNTIL NOON TUESDAY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1105 AM CST MON JAN 31 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
011715-
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-
1105 AM CST MON JAN 31 2011 /1205 PM EST MON JAN 31 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SNOW WILL MOVE INTO NORTH CENTRAL ILLINOIS THIS AFTERNOON AND
NORTHEAST ILLINOIS AND NORTHWEST INDIANA TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

LIGHT SNOW WILL OVERSPREAD NORTHERN ILLINOIS AND NORTHWEST INDIANA
TONIGHT. ACCUMULATIONS ARE EXPECTED TO BE BETWEEN 1 AND 3 INCHES.
NORTHEAST WINDS BETWEEN 10 AND 20 MPH ARE LIKELY...WHICH MAY
REDUCE VISIBILITIES FOR A PERIOD OF TIME TONIGHT.

HEAVY SNOW WILL BEGIN TUESDAY AFTERNOON AND WILL CONTINUE THROUGH
THE NIGHT. HEAVY SNOW WILL OCCUR WEDNESDAY MORNING. SNOW
ACCUMULATIONS BY WEDNESDAY AFTERNOON MAY BE GREATER THAN A FOOT.
STRONG WINDS MAY PRODUCE WHITE OUT CONDITIONS TUESDAY NIGHT AND
EARLY WEDNESDAY MORNING. BLIZZARD CONDITIONS MAY OCCUR IN
NORTHERN
ILLINOIS AND NORTHWEST INDIANA. LOCAL FLOODING MAY OCCUR ALONG
THE LAKE MICHIGAN SHORES TUESDAY NIGHT AND WEDNESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

LMZ740>745-011715-
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
1105 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT THIS AFTERNOON AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

GALE FORCE WINDS TO 45 KNOTS ARE POSSIBLE TUESDAY AFTERNOON
THROUGH WEDNESDAY AFTERNOON.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-011715-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
1105 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

GALE FORCE WINDS TO 45 KNOTS ARE LIKELY TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON.

HEAVY FREEZING SPRAY IS POSSIBLE TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

BEACHLER