Winter Storm Warning 2, NWS Chicago, IL

409 
WWUS43 KLOT 310847
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
247 AM CST SAT JAN 31 2015

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
311700-
/O.CON.KLOT.WS.W.0002.150201T0300Z-150202T0300Z/
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
247 AM CST SAT JAN 31 2015 /347 AM EST SAT JAN 31 2015/

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM CST /10 PM
EST/ THIS EVENING TO 9 PM CST /10 PM EST/ SUNDAY...

* TIMING...ACCUMULATING SNOW WILL BEGIN THIS EVENING. 
  PRECIPITATION MAY START AS RAIN OR RAIN SNOW MIX...
  PARTICULARLY THE FARTHER SOUTH YOU GO FROM INTERSTATE 80. 

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 5 TO 10 INCHES ARE 
  EXPECTED BY SUNDAY EVENING...WITH A CHANCE OF ISOLATED HEAVIER 
  AMOUNTS IN EXCESS OF 10 INCHES...ESPECIALLY NEAR LAKE 
  MICHIGAN. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WILL DEVELOP SUNDAY 
  AFTERNOON AND CONTINUE INTO SUNDAY EVENING LEADING TO BLOWING 
  AND DRIFTING OF THE FRESHLY FALLEN SNOW. 

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.

&&

$$

IZZI

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

258 
WWUS43 KLOT 311654
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1054 AM CST SAT JAN 31 2015

...HIGH IMPACT WINTER STORM TO IMPACT THE REGION TONIGHT THROUGH
SUNDAY...


ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
010100-
/O.CON.KLOT.WS.W.0002.150201T0300Z-150202T0300Z/
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
1054 AM CST SAT JAN 31 2015 /1154 AM EST SAT JAN 31 2015/

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM CST /10 PM
EST/ THIS EVENING TO 9 PM CST /10 PM EST/ SUNDAY...

* TIMING...ACCUMULATING SNOW WILL BEGIN THIS EVENING. 
  PRECIPITATION MAY START AS RAIN OR RAIN SNOW MIX... 
  PARTICULARLY THE FARTHER SOUTH YOU GO FROM INTERSTATE 80. 

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 6 TO 12 INCHES ARE
  EXPECTED BY SUNDAY EVENING...WITH A CHANCE OF ISOLATED HEAVIER
  AMOUNTS IN EXCESS OF 12 INCHES...ESPECIALLY NEAR LAKE MICHIGAN.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WITH GUSTS POTENTIALLY IN
  EXCESS OF 35 MPH WILL DEVELOP SUNDAY AFTERNOON AND CONTINUE INTO
  SUNDAY EVENING...AND THIS MAY PRODUCE SIGNIFICANT BLOWING AND
  DRIFTING SNOW WITH WHITE OUT CONDITIONS IN OPEN AREAS. 

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.

&&

$$

KJB

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

454 
WWUS43 KLOT 312032
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
232 PM CST SAT JAN 31 2015

...STRONG WINTER STORM TO IMPACT THE REGION THIS EVENING THROUGH
SUNDAY NIGHT...

ILZ006-013-014-022-023-033-039-INZ001-002-010-011-019-010445-
/O.EXT.KLOT.WS.W.0002.150201T0300Z-150202T1200Z/
LAKE IL-DUPAGE-COOK-WILL-KANKAKEE-IROQUOIS-FORD-LAKE IN-PORTER-
NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...WAUKEGAN...WHEATON...CHICAGO...JOLIET...
KANKAKEE...WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...
RENSSELAER...FOWLER
232 PM CST SAT JAN 31 2015 /332 PM EST SAT JAN 31 2015/

...WINTER STORM WARNING NOW IN EFFECT FROM 9 PM CST /10 PM EST/
THIS EVENING TO 6 AM CST /7 AM EST/ MONDAY...

* TIMING...ACCUMULATING SNOW WILL BEGIN THIS EVENING AND CONTINUE
  THROUGH SUNDAY NIGHT. PRECIPITATION WILL LIKELY START AS RAIN
  OR A RAIN SNOW MIX...ESPECIALLY THE FARTHER SOUTH YOU GO FROM
  INTERSTATE 80.

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 10 TO 14 INCHES ARE
  EXPECTED BY SUNDAY NIGHT...ESPECIALLY NEAR LAKE MICHIGAN.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WITH GUSTS POSSIBLY IN
  EXCESS OF 35 MPH WILL DEVELOP SUNDAY AFTERNOON AND CONTINUE INTO
  SUNDAY EVENING...AND ARE LIKELY TO BE HIGHER NEAR THE LAKE. THIS
  WILL PRODUCE SIGNIFICANT BLOWING AND DRIFTING SNOW AND BLIZZARD
  LIKE 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.

&&

$$

ILZ003>005-008-010>012-019>021-032-010445-
/O.EXT.KLOT.WS.W.0002.150201T0000Z-150202T0600Z/
WINNEBAGO-BOONE-MCHENRY-OGLE-LEE-DE KALB-KANE-LA SALLE-KENDALL-
GRUNDY-LIVINGSTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
OREGON...DIXON...DEKALB...AURORA...OTTAWA...OSWEGO...MORRIS...
PONTIAC
232 PM CST SAT JAN 31 2015

...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST SUNDAY NIGHT...

* TIMING...ACCUMULATING SNOW WILL BEGIN EARLY THIS EVENING AND
  CONTINUE THROUGH SUNDAY NIGHT. PRECIPITATION WILL LIKELY START
  AS RAIN OR A RAIN SNOW MIX...ESPECIALLY THE FARTHER SOUTH YOU GO
  FROM INTERSTATE 80.

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 8 TO 12 INCHES ARE
  EXPECTED BY SUNDAY NIGHT.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WITH GUSTS POSSIBLY IN
  EXCESS OF 35 MPH WILL DEVELOP MIDDAY SUNDAY AND CONTINUE INTO
  SUNDAY EVENING. THIS WILL PRODUCE SIGNIFICANT BLOWING AND
  DRIFTING SNOW AND BLIZZARD LIKE 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.

&&

$$

KJB/RODRIGUEZ

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

615 
WWUS43 KLOT 010303
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
903 PM CST SAT JAN 31 2015

...STRONG WINTER STORM TO IMPACT THE REGION THROUGH SUNDAY
NIGHT...

ILZ006-013-014-022-023-033-039-INZ001-002-010-011-019-011115-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T1200Z/
LAKE IL-DUPAGE-COOK-WILL-KANKAKEE-IROQUOIS-FORD-LAKE IN-PORTER-
NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...WAUKEGAN...WHEATON...CHICAGO...JOLIET...
KANKAKEE...WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...
RENSSELAER...FOWLER
903 PM CST SAT JAN 31 2015 /1003 PM EST SAT JAN 31 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST /7 AM
EST/ MONDAY...

* TIMING...SNOW WILL CONTINUE THROUGH SUNDAY NIGHT. THE SNOW MAY
  MIX WITH LIGHT RAIN LATE THIS EVENING...GENERALLY SOUTH OF
  INTERSTATE 80.

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 10 TO 14 INCHES ARE 
  EXPECTED BY SUNDAY NIGHT...ESPECIALLY NEAR LAKE MICHIGAN. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WITH GUSTS POSSIBLY IN 
  EXCESS OF 35 MPH WILL DEVELOP SUNDAY AFTERNOON AND CONTINUE 
  INTO SUNDAY EVENING...AND ARE LIKELY TO BE HIGHER NEAR THE 
  LAKE. THIS WILL PRODUCE SIGNIFICANT BLOWING AND DRIFTING SNOW 
  AND BLIZZARD LIKE 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.

&&

$$

ILZ003>005-008-010>012-019>021-032-011115-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
WINNEBAGO-BOONE-MCHENRY-OGLE-LEE-DE KALB-KANE-LA SALLE-KENDALL-
GRUNDY-LIVINGSTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
OREGON...DIXON...DEKALB...AURORA...OTTAWA...OSWEGO...MORRIS...
PONTIAC
903 PM CST SAT JAN 31 2015

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

* TIMING...SNOW WILL CONTINUE THROUGH SUNDAY NIGHT. THE SNOW MAY
  MIX WITH LIGHT RAIN LATE THIS EVENING...GENERALLY SOUTH OF
  INTERSTATE 80.

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 8 TO 12 INCHES ARE
  EXPECTED BY SUNDAY NIGHT.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  SIGNIFICANT DISRUPTIONS TO AIR TRAVEL ARE ALSO LIKELY. 

* OTHER IMPACTS...STRONG NORTHEAST WINDS WITH GUSTS POSSIBLY IN 
  EXCESS OF 35 MPH WILL DEVELOP MIDDAY SUNDAY AND CONTINUE INTO 
  SUNDAY EVENING. THIS WILL PRODUCE SIGNIFICANT BLOWING AND 
  DRIFTING SNOW AND BLIZZARD LIKE 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.

&&

$$

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

818 
WWUS43 KLOT 011008
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
408 AM CST SUN FEB 1 2015

ILZ005-006-011>014-020-022-INZ001-011815-
/O.NEW.KLOT.BZ.W.0001.150201T2000Z-150202T0600Z/
/O.EXT.KLOT.WS.W.0002.000000T0000Z-150201T2000Z/
MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...DEKALB...
AURORA...WHEATON...CHICAGO...OSWEGO...JOLIET...GARY
408 AM CST SUN FEB 1 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...BLIZZARD WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
MIDNIGHT CST TONIGHT...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT
CST TONIGHT. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM
CST. 

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE UNTIL EARLY
  EVENING. BLIZZARD CONDITIONS WILL DEVELOP LATE THIS AFTERNOON
  AND CONTINUE THIS EVENING...ESPECIALLY NEAR THE LAKE AND IN
  MORE OPEN AREAS.

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH GUSTS TO 40 MPH THIS AFTERNOON...WITH EVEN STRONGER WINDS
  NEAR THE LAKE. THE COMBINATION OF FALLING AND BLOWING SNOW WILL
  FREQUENTLY REDUCE VISIBILITIES TO NEAR ZERO IN WHITE OUT
  CONDITIONS LATE THIS AFTERNOON AND EVENING.

* SNOW ACCUMULATIONS...10 TO 15 INCHES...WITH ISOLATED TOTALS UP
  TO 18 INCHES POSSIBLE. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. BY
  AFTERNOON...THE COMBINATION OF THE SNOW AND VERY STRONG WINDS
  WILL MAKE TRAVEL EXTRAORDINARILY DANGEROUS.

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.

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.

&&

$$

ILZ023-033-039-INZ002-010-011-019-011815-
/O.EXT.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
KANKAKEE-IROQUOIS-FORD-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...KANKAKEE...WATSEKA...PAXTON...
VALPARAISO...MOROCCO...RENSSELAER...FOWLER
408 AM CST SUN FEB 1 2015 /508 AM EST SUN FEB 1 2015/

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT CST /1 AM
EST/ TONIGHT...

* TIMING...SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE THROUGH
  THIS EVENING. THE SNOW MAY MIX WITH SLEET OR DRIZZLE AT TIMES
  TODAY WELL SOUTH OF THE KANKAKEE AND ILLINOIS RIVERS. 

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 6 TO 12 INCHES ARE
  EXPECTED BY LATE THIS EVENING. THE HEAVIEST TOTALS SHOULD BE
  NEAR AND NORTH OF THE KANKAKEE RIVER...WITH THE LIGHTEST AMOUNTS
  SOUTH OF U.S. HIGHWAY 24.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT.
  STRONG NORTHEAST WINDS WILL DEVELOP THIS EVENING AND COULD
  RESULT IN BLOWING AND DRIFTING SNOW...ESPECIALLY NEAR AND NORTH
  OF THE KANKAKEE RIVER.  

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.

&&

$$

ILZ003-004-008-010-019-021-032-011815-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
WINNEBAGO-BOONE-OGLE-LEE-LA SALLE-GRUNDY-LIVINGSTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...OREGON...DIXON...
OTTAWA...MORRIS...PONTIAC
408 AM CST SUN FEB 1 2015

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

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE UNTIL EARLY
  EVENING. NEAR BLIZZARD CONDITIONS WILL DEVELOP THIS AFTERNOON
  AND CONTINUE INTO THIS EVENING. 

* SNOW ACCUMULATIONS...10 TO 14 INCHES...WITH ISOLATED HIGHER
  AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH OCCASIONAL GUSTS TO 35 MPH THIS AFTERNOON. THE COMBINATION
  OF FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE
  VISIBILITIES TO NEAR ZERO LATE THIS AFTERNOON AND EVENING IN
  NEAR WHITE OUT CONDITIONS.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. THE
  DEVELOPING NEAR BLIZZARD CONDITIONS THIS AFTERNOON WILL MAKE
  TRAVEL EXTREMELY DANGEROUS FROM MID AFTERNOON INTO THIS EVENING.
  IF IT APPEARS CONDITIONS WILL BE ANY WORSE THAN AN UPGRADE TO A
  BLIZZARD WARNING COULD OCCUR TODAY. 

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.

&&

$$

IZZI

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

491 
WWUS43 KLOT 011629
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1029 AM CST SUN FEB 1 2015

ILZ003-004-008-010-019-021-020030-
/O.CAN.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
/O.EXB.KLOT.BZ.W.0001.150201T1629Z-150202T0600Z/
WINNEBAGO-BOONE-OGLE-LEE-LA SALLE-GRUNDY-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...OREGON...DIXON...
OTTAWA...MORRIS
1029 AM CST SUN FEB 1 2015

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. THIS
REPLACES THE WINTER STORM WARNING.

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE INTO THIS
  EVENING. BLIZZARD CONDITIONS WILL ALSO DEVELOP AND CONTINUE
  THIS EVENING.

* SNOW ACCUMULATIONS...10 TO 16 INCHES...WITH ISOLATED HIGHER 
  AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH OCCASIONAL GUSTS TO 45 MPH THIS AFTERNOON. THE COMBINATION
  OF FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE
  VISIBILITIES TO NEAR ZERO LATE THIS AFTERNOON AND EVENING IN
  NEAR WHITE OUT CONDITIONS.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. BY
  AFTERNOON...THE COMBINATION OF THE SNOW AND VERY STRONG WINDS
  WILL MAKE TRAVEL EXTRAORDINARILY DANGEROUS.

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS AND
  SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER OUTAGES.


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.

&&

$$

ILZ005-006-011>014-020-022-INZ001-020030-
/O.CAN.KLOT.WS.W.0002.000000T0000Z-150201T2000Z/
/O.EXT.KLOT.BZ.W.0001.150201T1629Z-150202T0600Z/
MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...DEKALB...
AURORA...WHEATON...CHICAGO...OSWEGO...JOLIET...GARY
1029 AM CST SUN FEB 1 2015

...BLIZZARD WARNING NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE BLIZZARD WARNING REPLACES THE WINTER STORM WARNING.

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THIS
  EVENING. BLIZZARD CONDITIONS WILL ALSO DEVELOP...ESPECIALLY
  NEAR THE LAKE AND IN MORE OPEN AREAS.

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 
  MPH WITH GUSTS TO 40 MPH THIS AFTERNOON...WITH EVEN STRONGER 
  WINDS NEAR THE LAKE. THE COMBINATION OF FALLING AND BLOWING 
  SNOW WILL FREQUENTLY REDUCE VISIBILITIES TO NEAR ZERO IN WHITE 
  OUT CONDITIONS LATE THIS AFTERNOON AND EVENING. 

* SNOW ACCUMULATIONS...12 TO 16 INCHES...WITH ISOLATED TOTALS UP
  TO 18 INCHES POSSIBLE.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. BY
  AFTERNOON...THE COMBINATION OF THE SNOW AND VERY STRONG WINDS
  WILL MAKE TRAVEL EXTRAORDINARILY DANGEROUS.

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS AND
  SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER OUTAGES.

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.

&&

$$

ILZ023-032-033-039-INZ002-010-011-019-020030-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
KANKAKEE-LIVINGSTON-IROQUOIS-FORD-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...KANKAKEE...PONTIAC...WATSEKA...PAXTON...
VALPARAISO...MOROCCO...RENSSELAER...FOWLER
1029 AM CST SUN FEB 1 2015 /1129 AM EST SUN FEB 1 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/1 AM EST/ TONIGHT...

* TIMING...SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE THROUGH
  THIS EVENING. THE SNOW MAY MIX WITH SLEET AT TIMES TODAY WELL
  SOUTH OF THE KANKAKEE AND ILLINOIS RIVERS.

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 8 TO 12 INCHES ARE 
  EXPECTED BY LATE THIS EVENING. THE HEAVIEST TOTALS SHOULD BE 
  NEAR AND NORTH OF THE KANKAKEE RIVER...WITH THE LIGHTEST 
  AMOUNTS SOUTH OF U.S. HIGHWAY 24. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  STRONG NORTHEAST WINDS WILL DEVELOP THIS EVENING AND COULD 
  RESULT IN BLOWING AND DRIFTING SNOW...ESPECIALLY NEAR AND 
  NORTH OF THE KANKAKEE RIVER. 

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.

&&

$$

KJB

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

132 
WWUS43 KLOT 011950
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
150 PM CST SUN FEB 1 2015

INZ002-020400-
/O.CAN.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
/O.EXA.KLOT.BZ.W.0001.000000T0000Z-150202T0600Z/
PORTER-
INCLUDING THE CITY OF...VALPARAISO
150 PM CST SUN FEB 1 2015

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. THIS
REPLACES THE WINTER STORM WARNING.

* TIMING...SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE THROUGH
  THIS EVENING. 

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 10 TO 15 INCHES ARE
  EXPECTED BY LATE THIS EVENING. 

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH OCCASIONAL GUSTS TO 45 MPH BY EARLY THIS EVENING. THE
  COMBINATION OF FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE
  VISIBILITIES TO NEAR ZERO LATE THIS AFTERNOON AND EVENING IN
  NEAR WHITE OUT CONDITIONS.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. THE
  COMBINATION OF THE SNOW AND VERY STRONG WINDS WILL MAKE TRAVEL
  EXTRAORDINARILY DANGEROUS.

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS 
  AND SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER 
  OUTAGES. 

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.

&&

$$

ILZ003>006-008-010>014-019>022-INZ001-020400-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-150202T0600Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-LAKE IN-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...GARY
150 PM CST SUN FEB 1 2015

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE INTO THIS 
  EVENING. BLIZZARD CONDITIONS WILL ALSO DEVELOP AND CONTINUE 
  THIS EVENING. 

* SNOW ACCUMULATIONS...10 TO 16 INCHES...WITH ISOLATED HIGHER 
  AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH OCCASIONAL GUSTS TO 45 MPH LATE THIS AFTERNOON. THE
  COMBINATION OF FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE
  VISIBILITIES TO NEAR ZERO LATE THIS AFTERNOON AND EVENING IN
  NEAR WHITE OUT CONDITIONS.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. THE
  COMBINATION OF THE SNOW AND VERY STRONG WINDS WILL MAKE TRAVEL
  EXTRAORDINARILY DANGEROUS.

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS 
  AND SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER 
  OUTAGES. 

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.

&&

$$

ILZ023-032-033-039-INZ010-011-019-020400-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...KANKAKEE...PONTIAC...WATSEKA...PAXTON...
MOROCCO...RENSSELAER...FOWLER
150 PM CST SUN FEB 1 2015 /250 PM EST SUN FEB 1 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/1 AM EST/ TONIGHT...

* TIMING...SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE THROUGH
  THIS EVENING.  

* SNOW ACCUMULATIONS...WIDESPREAD AMOUNTS OF 8 TO 12 INCHES ARE 
  EXPECTED BY LATE THIS EVENING. THE HEAVIEST TOTALS SHOULD BE 
  NEAR AND NORTH OF THE KANKAKEE RIVER...WITH THE LIGHTEST 
  AMOUNTS SOUTH OF U.S. HIGHWAY 24. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  STRONG NORTHEAST WINDS WILL DEVELOP THIS EVENING AND COULD 
  RESULT IN BLOWING AND DRIFTING SNOW...ESPECIALLY NEAR AND 
  NORTH OF THE KANKAKEE RIVER. 

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.

&&

$$

KJB

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

564 
WWUS43 KLOT 020300
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
900 PM CST SUN FEB 1 2015

INZ001-002-020900-
/O.EXT.KLOT.BZ.W.0001.000000T0000Z-150202T0900Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF...GARY...VALPARAISO
900 PM CST SUN FEB 1 2015

...BLIZZARD WARNING NOW IN EFFECT UNTIL 3 AM CST MONDAY...

* TIMING...SNOW WILL CONTINUE THROUGH EARLY MONDAY MORNING WITH
  BLIZZARD CONDITIONS.

* SNOW ACCUMULATIONS...NEW ACCUMULATION 1 TO 3 INCHES. STORM
  TOTAL ACCUMULATION 12 TO 18 INCHES.

* WINDS/VISIBILITY...NORTHEAST WINDS 20 TO 30 MPH WITH OCCASIONAL
  GUSTS TO 45 MPH WILL SLOWLY DIMINISH OVERNIGHT. THE COMBINATION
  OF FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE
  VISIBILITIES TO NEAR ZERO THROUGH EARLY MONDAY MORNING IN NEAR
  WHITE OUT CONDITIONS.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  THE COMBINATION OF THE SNOW AND VERY STRONG WINDS WILL MAKE 
  TRAVEL EXTRAORDINARILY DANGEROUS. 

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS AND
  SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER OUTAGES.

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.

&&

$$

ILZ003>006-008-010>014-019>022-020600-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-150202T0600Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET
900 PM CST SUN FEB 1 2015

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...SNOW WILL SLOWLY TAPER OFF TO FLURRIES OVERNIGHT WITH
  BLIZZARD CONDITIONS THIS EVENING.

* SNOW ACCUMULATIONS...NEW SNOW ACCUMULATION 1 TO 2 INCHES NEAR
  THE LAKE AND LESS THAN ONE INCH ELSEWHERE. STORM TOTAL
  ACCUMULATIONS 12 TO 18 INCHES.

* WINDS/VISIBILITY...NORTH WINDS 20 TO 30 MPH WITH OCCASIONAL
  GUSTS TO 40 MPH WILL DIMINISH OVERNIGHT. THE COMBINATION OF
  FALLING AND BLOWING SNOW WILL OCCASIONALLY REDUCE VISIBILITIES
  TO A QUARTER MILE OR LESS THIS EVENING.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  THE COMBINATION OF THE SNOW AND VERY STRONG WINDS WILL MAKE 
  TRAVEL EXTRAORDINARILY DANGEROUS. 

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS AND
  SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER OUTAGES.

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.

&&

$$

ILZ023-032-033-039-INZ010-011-019-020600-
/O.CON.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...KANKAKEE...PONTIAC...WATSEKA...PAXTON...
MOROCCO...RENSSELAER...FOWLER
900 PM CST SUN FEB 1 2015 /1000 PM EST SUN FEB 1 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
/1 AM EST/ TONIGHT...

* TIMING...SNOW WILL TAPER OFF TO FLURRIES OVERNIGHT.

* SNOW ACCUMULATIONS...NEW SNOW ACCUMULATION 1 TO 2 INCHES. STORM
  TOTAL ACCUMULATION 8 TO 12 INCHES. THE HEAVIEST TOTALS SHOULD BE
  NEAR AND NORTH OF THE KANKAKEE RIVER...WITH THE LIGHTEST AMOUNTS
  SOUTH OF U.S. HIGHWAY 24.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT.
  STRONG NORTH WINDS WILL RESULT IN BLOWING AND DRIFTING SNOW...
  ESPECIALLY NEAR AND NORTH OF THE KANKAKEE RIVER.

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.

&&

$$

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

379 
WWUS43 KLOT 020557
WSWLOT

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1157 PM CST SUN FEB 1 2015

ILZ003>006-008-010>014-019>022-020700-
/O.EXP.KLOT.BZ.W.0001.000000T0000Z-150202T0600Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET
1157 PM CST SUN FEB 1 2015

...BLIZZARD WARNING WILL EXPIRE AT MIDNIGHT CST TONIGHT...

BANDS OF MODERATE SNOW SHOWERS WILL CONTINUE ACROSS LAKE...COOK
AND WILL COUNTIES INTO THE EARLY OVERNIGHT HOURS. THIS...COMBINED
WITH WINDS GUSTING TO AROUND 30 MPH...WILL ALLOW VISIBILITY TO
FALL TO AROUND ONE HALF MILE AT TIMES. AREAS NEAR THE LAKEFRONT
WILL SEE GUSTS NEAR 40 MPH. SNOW IS EXPECTED TO PUSH TO THE EAST
OVERNIGHT WITH WINDS STEADILY DECREASING...ESPECIALLY INLAND. ADDITIONAL
SNOW ACCUMULATION OF AN INCH IS POSSIBLE...WITH ISOLATED 2 INCH
AMOUNTS.

$$

ILZ023-032-033-039-INZ010-011-019-020700-
/O.EXP.KLOT.WS.W.0002.000000T0000Z-150202T0600Z/
KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...KANKAKEE...PONTIAC...WATSEKA...PAXTON...
MOROCCO...RENSSELAER...FOWLER
1157 PM CST SUN FEB 1 2015 /1257 AM EST MON FEB 2 2015/

...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT CST /1 AM EST/
TONIGHT...

LIGHT SNOW WILL CONTINUE THROUGH THE EARLY OVERNIGHT THOUGH SOME
BRIEF BURSTS OF MODERATE SNOW ARE POSSIBLE. ADDITIONAL
ACCUMULATION OF LESS THAN AN INCH IS EXPECTED. 

$$

INZ001-002-020900-
/O.CON.KLOT.BZ.W.0001.000000T0000Z-150202T0900Z/
LAKE IN-PORTER-
INCLUDING THE CITIES OF...GARY...VALPARAISO
1157 PM CST SUN FEB 1 2015

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 3 AM CST MONDAY...

* TIMING...SNOW WILL CONTINUE THROUGH EARLY MONDAY MORNING WITH 
  BLIZZARD CONDITIONS. 

* SNOW ACCUMULATIONS...NEW ACCUMULATION 1 TO 3 INCHES. STORM 
  TOTAL ACCUMULATION 12 TO 18 INCHES. 

* WINDS/VISIBILITY...NORTHEAST WINDS 20 TO 30 MPH WITH 
  OCCASIONAL GUSTS TO 45 MPH WILL SLOWLY DIMINISH OVERNIGHT. THE 
  COMBINATION OF FALLING AND BLOWING SNOW WILL OCCASIONALLY 
  REDUCE VISIBILITIES TO NEAR ZERO THROUGH EARLY MONDAY MORNING 
  IN NEAR WHITE OUT CONDITIONS. 

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. 
  THE COMBINATION OF THE SNOW AND VERY STRONG WINDS WILL MAKE 
  TRAVEL EXTRAORDINARILY DANGEROUS. 

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS 
  AND SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER 
  OUTAGES. 

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.

&&

$$

MDB

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
245 AM CST SAT JAN 31 2015

.UPDATE...

847 PM...EVENING UPDATE...NO CHANGES PLANNED TO CURRENT WINTER
STORM WATCH. WHILE THE 00Z NAM IS ROLLING IN WITH NO SIGNIFICANT
CHANGES FROM 12Z/18Z NAM RUNS...WILL ALLOW MIDNIGHT SHIFT TO
EVALUATE THE FULL SUITE OF 00Z GUIDANCE BEFORE MAKING ANY UPGRADE
DECISIONS AS WELL AS AMOUNTS.

IN THE SHORT TERM...MAINLY CLEAR SKIES AND LIGHT WINDS HAVE
ALLOWED TEMPS TO DIP INTO THE TEENS IN SOME LOCATIONS...BUT AS THE
GRADIENT SLOWLY TIGHTENS FROM WEST TO EAST...ALONG WITH SOME MID/
HIGH LEVEL CLOUD COVER...TEMPS WILL LIKELY LEVEL OFF AND POSSIBLY
BECOME STEADY OVERNIGHT. CMS

&&

.SHORT TERM...
1128 AM CST

TONIGHT THROUGH SATURDAY MORNING...

WITH HIGH PRESSURE OVERHEAD...MINIMAL CLOUD COVER COVERS MUCH OF
THE REGION THIS AFTERNOON. THE EXCEPTION BEING NORTHWEST
INDIANA...WHICH REMAINS UNDER LAKE EFFECT CLOUDS AND FLURRIES.
TEMPERATURES HAVE SLOWLY WARMED INTO THE MID/UPR 20S...WITH A FEW
LOCATIONS SOUTH OF PONTIAC/WATSEKA POSSIBLY TOUCHING 30 DEGREES
LATER THIS AFTERNOON.

SFC RIDGE WILL STEADILY SLIDE EAST OVERNIGHT...WITH LIGHT LLVL FLOW
TURNING WESTERLY TO SOUTHWESTERLY. MINIMAL CLOUD COVER OVERNIGHT
SHOULD ALLOW TEMPS TO STEADILY RADIATE INTO THE MID/UPR TEENS.

SATURDAY...
MAIN FOCUS WILL BE ON TIMING OF MOISTURE RETURNING ALONG WITH THE
DEVELOPING WINTER STORM. FORTUNATELY IT APPEARS THE TIMING WILL BE
AFTER THE SATURDAY PERIOD. LLVL FLOW WILL REMAIN
SOUTHWESTERLY...WITH STEADY SATURATION FROM ALOFT TO THE SFC.
THERMAL TEMPS ALOFT WILL RISE TO ARND 0DEG C BY MIDDAY...BUT AS
MOISTURE ARRIVES ALOFT...EXPECT TEMPS TO SLOWLY COOL. SOUNDINGS
STILL ADVERTISE SOME DRY AIR IN THE MID LEVELS. TEMPS COULD WARM
INTO THE LOW/MID 30S...POSSIBLY BRIEFLY TOUCHING 40 DEGREES IN THE
FAR SOUTHERN CWFA BEFORE CLOUDS THICKEN WITH MOISTURE ARRIVAL.

BEACHLER

317 PM CST...

WINTER STORM...SATURDAY AFTERNOON THROUGH EARLY MONDAY...

HEADLINES: HAVE CONTINUED WITH WINTER STORM WATCH FOR ENTIRE CWA
SATURDAY EVENING THROUGH LATE SUNDAY NIGHT/EARLY MONDAY. PART OF
THE EVOLUTION OF THE STORM IS TIED TO THE TRACK AND STRENGTH OF
NORTHERN STREAM ENERGY MOVING ONTO THE BRITISH COLUMBIA COAST THIS
MORNING THAT WAS ONLY PARTIALLY SAMPLED BY THE UPPER AIR NETWORK.
THUS WHILE CONFIDENCE IS INCREASING ON A VERY SIGNIFICANT WINTER
STORM...CONFIDENCE IS NOT HIGH ENOUGH YET (80%+) IN TOTAL AMOUNTS
TO ISSUE A WARNING.

WE ARE STILL LOOKING AT A LONG DURATION PRIMARILY MODERATE SNOW
EVENT. HOWEVER...IT MUST BE NOTED THAT THE MUCH OF THE GUIDANCE
HAS TRENDED STRONGER AND FARTHER NORTH WITH THE SURFACE AND
MIDLEVEL LOWS THAT WILL IMPACT THE AREA. ENERGY FROM SOUTHWEST
CLOSED LOW WILL EJECT AND INTERACT WITH A STRONG NORTHERN WAVE
DIVING SOUTHEAST TOWARD THE REGION FROM THE NORTHERN PLAINS. THIS
WILL RESULT IN INTENSIFYING WARM ADVECTION/ISENTROPIC ASCENT IN
ADVANCE OF AN INITIALLY WEAK SURFACE LOW OVER THE SOUTHERN PLAINS
SATURDAY EVENING AND NIGHT. AT THE SAME TIME...COLDER AIR WILL
OOZE SOUTHWARD BEHIND COLD FRONT EMANATING FROM STRONG ARCTIC
HIGH PRESSURE SPREADING SOUTHEAST FROM THE CANADIAN PRAIRIES.

LONG PERIOD OF WARM ADVECTION DRIVEN SNOWS STARTING MAINLY SATURDAY
EVENING...BUT POSSIBLY AS EARLY AS THE LATE AFTERNOON IN THE FAR
SOUTHWEST CWA AS TOP DOWN SATURATION OCCURS. BOUNDARY LAYER
CONDITIONS WILL BE A BIT MARGINAL IN THESE AREAS...BUT MAX WET BULB
TEMPS ARE JUST SLIGHTLY ABOVE FREEZING...SO ANY RA/SN MIX THAT
OCCURS SHOULD QUICKLY TRANSITION TO SNOW...BUT WITH LOWER RATIOS
CLOSER TO 10:1. CAVEAT TO THIS WILL BE IF SYSTEM AND 850 MB LOW
TRACK CONTINUES NORTHWARD SHIFT ON GUIDANCE...PARTS OF SOUTHERN
CWA MAY FLIRT WITH MARGINAL THERMAL PROFILES LATER INTO SATURDAY
EVENING.

SNOW WILL OVERSPREAD THE AREA FROM WEST-SOUTHWEST TO EAST
NORTHEAST DURING SATURDAY EVENING...WITH CONDITIONS DETERIORATING
OVERNIGHT. WHILE SNOWFALL RATES WILL GENERALLY BE MODERATE (1/2"
TO 1"/HR)...STRENGTHENING 700 MB FGEN LAYING OUT ROUGHLY ALONG
I-80 BY LATE SATURDAY NIGHT INTO EARLY SUNDAY MORNING COULD RESULT
IN OCCASIONAL HEAVY RATES (1-2"/HR). AS SURFACE LOW TRACKS FROM
NORTHERN/CENTRAL MO TO CENTRAL IL DURING THE DAY ON SUNDAY...THE
DEFORMATION AXIS OF THE STRENGTHENING SURFACE AND MID LEVEL LOWS
WILL LINGER INTO LATE SUNDAY...KEEPING LIGHT TO MODERATE SNOW
GOING. IN ADDITION...850 MB LOW TRACK IS PROGGED TO TAKE NEARLY
IDEAL TRACK FOR SIGNIFICANT SNOW IN THE CWA FROM CENTRAL IL INTO
CENTRAL INDIANA. FINALLY...ON SUNDAY NIGHT...WHILE SNOW WILL TAPER
OFF FOR MUCH OF NORTH CENTRAL IL...IMPROVING THERMODYNAMICS AND
NORTH-NORTHEAST FLOW DOWN THE LENGTH OF LAKE MICHIGAN IS EXPECTED
TO RESULT IN LAKE ENHANCEMENT TRANSITIONING TO TRUE LAKE EFFECT
SNOW. BUFKIT SOUNDINGS ARE INDICATING IN EXCESS OF 200 J/KG OF
LAKE INDUCED CAPE. WHILE INVERSION HEIGHTS WILL BE SOMEWHAT
MARGINAL...LIFT WILL BE THROUGH DGZ AND ALSO HIGHER-RES GUIDANCE
IS INDICATING VERY STRONG CONVERGENCE DEVELOPING. HAVE BUMPED UP
POPS TO LIKELY INTO NE IL AND EXTREME NW INDIANA...BUT CONFIDENCE
IS LOW ON EXACTLY HOW MUCH SNOW WILL BE ADDED BY LAKE EFFECT INTO
EARLY MONDAY.

DESPITE LONG DURATION PRIMARILY MODERATE SNOW...HAZARD POSED BY
THIS STORM IS LIKELY TO BE MAGNIFIED BY STRENGTHENING PRESSURE
GRADIENT SUNDAY MORNING INTO SUNDAY NIGHT. TRACK OF LOW FOLLOWED
BY ARCTIC HIGH SPREADING SOUTHEAST IN ITS WAKE WILL RESULT IN
STRONG ISALLOBARIC PRESSURE FALLS FOLLOWED BY PRESSURE RISES. IF
SOME OF THE STRONGER SURFACE LOW SOLUTIONS ON GUIDANCE COME TO
FRUITION...THIS WILL BE EVEN MORESO THE CASE. DURING THIS
TIMEFRAME...SNOW WILL BE INCREASINGLY FLUFFY...SO BLOWING SNOW DUE
TO NORTHEAST WIND GUSTS OF 30-35 MPH COULD COMBINE WITH FALLING
SNOW TO RESULT IN NEAR BLIZZARD CONDITIONS IN OPEN AREAS. ON THE
IMMEDIATE LAKEFRONT...WIND GUSTS FROM THE FRICTIONLESS LAKE COULD
EVEN TOUCH 40 MPH...POTENTIALLY RESULTING IN NEAR BLIZZARD
CONDITIONS THERE. CONVERGENT LAKE BAND COULD ALSO RESULT IN EVEN
SLIGHTLY STRONGER WINDS ON THE LAKEFRONT SUNDAY NIGHT INTO EARLY
MONDAY MORNING...KEEPING THE THREAT OF SIGNIFICANTLY REDUCED
VISIBILITY GOING WHILE WINDS DIMINISH FOR THE REST OF THE AREA. AS
A FINAL ADDITIONAL NOTE ON THE LAKEFRONT...INCREASING CONCERN FOR
AT LEAST MINOR LAKESHORE FLOODING IN NE IL BY SUNDAY EVENING DUE
TO WAVES BUILDING TO 10 TO 14 FT. HAVE NOT ISSUED A LAKESHORE
FLOOD WATCH...BUT MAY NEED TO CONSIDER A LAKESHORE FLOOD ADVISORY.

OVERALL...CONTINUE TO HAVE HIGHEST CONFIDENCE IN GREATER THAN 8
INCH SNOW AMOUNTS IN 24 HOURS ROUGHLY ALONG/SOUTHEAST OF A LINE
FROM WINTHROP HARBOR TO FORRESTON IL. LOCALLY HIGHER AMOUNTS IN
EXCESS OF A FOOT ARE POSSIBLE NEAR LAKE MICHIGAN AND ALONG/SOUTH
OF INTERSTATE 88. NORTHWEST OF THAT LINE...INCLUDING THE ROCKFORD
METRO...POTENTIAL EXISTS FOR GREATER THAN 6 INCHES...BUT
BLOWING/DRIFTING SNOW IS LIKELY TO CAUSE SIGNIFICANT TRAVEL
IMPACTS EVEN IF STRICT WARNING CRITERIA OF 8 INCHES IN 24 HOURS IS
NOT MET.

RC

&&

.LONG TERM...
200 AM CST

MONDAY THROUGH FRIDAY...

BY MONDAY MORNING...THE SYSTEM THAT IS EXPECTED TO BRING THE WEEKEND
SNOWFALL SHOULD SHIFT WELL TO THE EAST...WITH THE SFC LOW MOVING TO
THE MID ATLANTIC REGION WHILE HIGH PRESSURE BUILDS JUST WEST OF THE
MISSISSIPPI RIVER.  THE RESULTANT LONG...NORTHERLY FETCH OVER LAKE
MICHIGAN SHOULD BE CONDUCIVE TO A LAKE EFFECT BAND OF SNOW
DEVELOPING ALONG THE SPINE OF THE LAKE...AND THE SFC WIND FIELD
ADVERTISED BY MUCH OF THE GUIDANCE DOES INDICATE A SFC CONVERGENCE
BAND AS WELL.  SO...WOULD EXPECT A BAND OF LAKE EFFECT SNOW SHOWERS
POINTING INTO NWRN INDIANA MONDAY MORNING.  THE OVERALL PATTERN
SHOULD BE FAIRLY PROGRESSIVE...SO DO NOT ANTICIPATE THAT A BAND
WOULD SET UP OVER A SINGLE AREA FOR VERY LONG...WITH THE LAKE EFFECT
BAND GRADUALLY MOVING EAST THROUGH THE DAY...PERHAPS JUST CLIPPING
NERN PORTER COUNTY IN THE AFTERNOON.  FOLLOWING THE SYNOPTIC
SNOW...DO NOT ANTICIPATE THAT THIS LAKE EFFECT BAND WOULD
SIGNIFICANTLY ADD TO THE PREVIOUS SNOWFALL.  AS THE SFC HIGH
PRESSURE BUILDS EWD THROUGH THE DAY...TEMPERATURES ACROSS THE REGION
WILL LIKELY ONLY SEE A 5 TO 10 DEGREE DIURNAL RISE THROUGH THE DAY
WITH HIGHS ONLY IN THE TEENS.  BY TUESDAY...THE UPPER LEVEL PATTERN
IS EXPECTED TO BECOME MUCH MORE ZONAL...WITH A SERIES OF WEAK
SHORTWAVES RIPPLING THROUGH THE FAST UPPER LEVEL FLOW.  TIMING OF
INDIVIDUAL SHORTWAVES IN FAST ZONAL FLOW ALOFT BECOMES MORE
PROBLEMATIC WITH TIME...SO CONFIDENCE IN THE EXACT TIMING OF ANY
INDIVIDUAL SYSTEM IMPACTING THE REGION WOULD BE MODERATE AT BEST.
HOWEVER...THAT BEING SAID...THE NEXT CHANCE FOR PCPN ACROSS THE AREA
SHOULD BE MONDAY NIGHT INTO TUESDAY MORNING AS A WEAK
PACIFIC-SOURCED SHORTWAVE QUICKLY SCOOT ACROSS THE AREA...POSSIBLY
BRINGING A LITTLE LIGHT SNOW.  WITH HIGH PRESSURE EXTENDING FROM THE
UPPER OHIO VALLEY THROUGH EAST TEXAS...THERE WILL LITTLE MOISTURE
TRANSPORT FROM THE GLFMEX AND ANY ACCUMULATIONS ASSOCIATED WITH THIS
SYSTEM SHOULD BE LIGHT.  ANOTHER PACIFIC SHORTWAVE...QUICK ON THE
HEELS OF THE FIRST ONE MAY BRING SOME MORE LIGHT SNOW FOR TUESDAY
NIGHT INTO WEDNESDAY...BUT AGAIN...ANY ACCUMULATIONS SHOULD BE
LIGHT.  BY WEDNESDAY NIGHT...ARCTIC HIGH PRESSURE BUILDING OUT OF
CANADA SHOULD SPREAD ACROSS THE NRN PLAINS AND ACROSS THE GREAT
LAKES REGION BY THURSDAY MORNING.  THIS WILL BRING MUCH COLDER
AIR...WITH LOWS DROPPING BELOW 0F OVER THE NWRN PORTIONS OF THE CWA
THURSDAY MORNING...WITH THE REMAINDER OF THE AREA DROPPING INTO THE
SINGLE DIGITS ABOVE 0F. THE COLD...ARCTIC HIGH PRESSURE WILL
DOMINATE THE REGION FOR THE REMAINDER OF THE WEEK.  THE COLDEST
PERIOD SHOULD BE THURSDAY NIGHT INTO FRIDAY MORNING TEMPERATURES
BELOW 0F OVER MUCH OF THE AREA AWAY FROM THE IMMEDIATE
LAKEFRONT...AND EVEN THERE...TEMPERATURES SHOULD ONLY BE IN THE
LOWER SINGLE DIGITS ABOVE ZERO.  THERE SHOULD BE A LITTLE MODERATION
TO TEMPERATURES BY FRIDAY AS THE CENTER OF THE HIGH SLIDES TO THE
EAST AND LOW LEVEL FLOW BECOMES MORE SOUTHERLY...DRAWING SOME
SLIGHTLY WARMER AIR INTO THE REGION WITH HIGHS ON FRIDAY IN THE
UPPER TEENS TO LOWER 20S.

KREIN

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 09Z...

* NONE THROUGH MID AFTERNOON.

* CIGS LOWERING TO MVFR LATE AFTERNOON THEN IFR BY LATE EVENING OR
  EARLY OVERNIGHT IN SNOW.

* SNOW SPREADS IN EARLY/MID EVENING CONTINUING THROUGH THE NIGHT.
  INTENSITY MAY WANE AT TIMES DURING THE EARLY OVERNIGHT...BUT
  PICK UP LATE.

* IFR VSBY EXPECTED IN SNOW BUT MAY SEE SOME INTERMITTENT
  IMPROVEMENT DURING THE EARLY OVERNIGHT HOURS.

* WINDS TURN FROM SOUTHWEST TO NORTHEAST EARLY/MID EVENING. MAY BE
  A PERIOD OF VARIABLE WINDS AROUND/JUST AFTER SUNSET. SPEEDS
  INCREASE EARLY SUNDAY MORNING.

KREIN

//DISCUSSION...UPDATED 06Z...

QUIET WEATHER WILL PERSIST THROUGH MID AFTERNOON WITH LIGHT/VARIABLE
SOUTH TO SOUTHWEST WINDS BECOMING STEADIER SOUTHWEST LATER THIS
MORNING. VFR WILL CONTINUE BUT CLOUDS WILL THICKEN AND LOWER THIS
AFTERNOON AHEAD OF AN APPROACHING LOW PRESSURE SYSTEM. EXPECT MVFR
TO DEVELOP QUICKLY LATE THIS AFTERNOON.

SNOW WILL SPREAD IN FROM THE SOUTHWEST THIS EVENING..OCCURRING
EARLIEST AT RFD. AREAS SOUTH OF THE TERMINALS MAY SEE PRECIP START
AS A MIX OF RAIN /SLEET/SNOW THEN TRANSITION TO ALL SNOW LATE
EVENING OR OVERNIGHT. HAVE DECENT CONFIDENCE IN TIMING OF THE ONSET
OF SNOW AT THE TERMINALS. LOW LEVEL FLOW WILL BE TURNING
NORTHEASTERLY DURING THE EVENING SO SNOW INTENSITY MAY EASE UP JUST
A BIT AS STEADIER NORTHEAST FLOW DEVELOPS BRINGING IN DRIER AIR. IT
APPEARS THAT SNOW WILL FALL HEAVILY ENOUGH TO BRING IFR VSBY DURING
THE EVENING BUT IT MAY END UP BEING SOMEWHAT
INTERMITTENT...ESPECIALLY FOR A TIME AROUND/AFTER 06Z. SNOW
INTENSITY IS EXPECTED TO INCREASE/PEAK AROUND/AFTER 09Z THEN PERSIST
THROUGH THE REST OF THE MORNING BEFORE WANING AGAIN EARLY SUNDAY
AFTERNOON. SUB 3/4SM OR EVEN 1/2SM VSBY IS MOST LIKELY DURING THIS
TIME. PEAK SNOW ACCUMULATION RATES OF BETWEEN 0.5 AND 0.75 IN/HR ARE
EXPECTED TO BE MOST PREVALENT WITH BRIEF PEAKS NEAR 1.0 IN/HR
POSSIBLE AT TIMES SATURDAY NIGHT AND SUNDAY. SURFACE WINDS WILL TURN
NORTHEASTERLY DURING THE EVENING THEN STEADILY INCREASE IN SPEED
SUNDAY MORNING. GUSTS OF 25-30 KT ARE EXPECTED BY LATE SUNDAY
MORNING WHICH WILL LIKELY RESULT IN BLOWING AND DRIFTING SNOW...AND
GUSTS NEAR 35 KT ARE A POSSIBILITY DURING THE AFTERNOON. WILL ALSO
NEED TO MONITOR LAKE EFFECT SNOW POTENTIAL LATE SUNDAY AFTERNOON
INTO MONDAY MORNING WHICH WOULD LIKELY RESULT IN A RETURN TO IFR
CONDITIONS WITH ADDITIONAL ACCUMULATIONS BUT IT IS NOT CLEAR HOW
LONG THE DURATION MAY BE...ESPECIALLY AT ORD/MDW/DPA.

MDB

//ORD AND MDW CONFIDENCE...UPDATED 09Z...

* HIGH CONFIDENCE ALL ELEMENTS THROUGH MID AFTERNOON.

* HIGH CONFIDENCE IN CIGS LOWERING LATE IN THE AFTERNOON. MEDIUM
  CONFIDENCE IN TIMING OF MVFR ARRIVAL.

* HIGH CONFIDENCE IN SNOW SPREADING IN EARLY/MID EVENING. MEDIUM-
  HIGH CONFIDENCE IN EXACT TIMING. MEDIUM-HIGH CONFIDENCE THAT
  HIGHEST INTENSITY SNOW WILL BEGIN AROUND/AFTER 09Z SUNDAY
  MORNING.

* MEDIUM-HIGH CONFIDENCE IN IFR VSBY OCCURRING DURING THE EVENING AND
  LOW-MEDIUM CONFIDENCE THAT SOME INTERMITTENT IMPROVEMENT WILL
  OCCUR DURING THE EARLY OVERNIGHT. HIGHER CONFIDENCE LOWEST VSBY
  AROUND/AFTER 09Z SUNDAY MORNING.

* HIGH CONFIDENCE IN SOUTHWEST WINDS TURNING NORTHEAST DURING THE
  EVENING. MEDIUM CONFIDENCE IN TIMING. HIGH CONFIDENCE IN SPEEDS
  INCREASING EARLY SUNDAY MORNING.

KREIN

//OUTLOOK FOR ORD/MDW FOR 12Z SUNDAY-12Z FRIDAY...UPDATED 00Z...

SUNDAY...SNOW THROUGH THE DAY...TAPERING OFF OVERNIGHT. MVFR
CIGS/VIS WITH PERIODS OF IFR CONDITIONS EXPECTED...ESPECIALLY
DURING THE MORNING.

MONDAY...VFR/WX NIL EARLY. SLIGHT CHANCE SNOW OVERNIGHT. MVFR
CIGS/VIS LIKELY.

TUESDAY AND WEDNESDAY...CHANCE OF SNOW. PERIODS OF MVFR CIGS/VIS
LIKELY.

THURSDAY...VFR/WX NIL.

MDB

&&

.MARINE...
243 AM CST

DISCUSSION...INCREASING NORTHEAST WINDS TONIGHT AND SUNDAY...LIKELY
REACHING GALE FORCE ACROSS SOUTHERN LAKE MICHIGAN WILL BE THE FOCUS
OF THE FORECAST. HIGH PRESSURE IS SPREAD FROM THE LOWER LAKES ACROSS
THE OHIO VALLEY AND TO THE GULF COAST THIS MORNING. WEST TO
SOUTHWEST WINDS HAVE SET UP ACROSS THE LAKE BEHIND THE HIGH. ONE AREA
OF LOW PRESSURE MOVING ACROSS NORTHERN ONTARIO WILL BRING A TROUGH
ACROSS THE LAKE INTO THE AFTERNOON TURNING WINDS NORTHWESTERLY THEN
NORTHEASTERLY LATE AS A NEW LOW DEVELOPS ACROSS THE FRONT RANGE OF
THE ROCKIES...WHICH THEN DEEPENS ACROSS KANSAS AND MISSOURI. SPEEDS
WILL STEADILY INCREASE TONIGHT AND PEAK SUNDAY AS THE LOW TRACKS
INTO CENTRAL INDIANA. WINDS WILL THEN TURN NORTHERLY SUNDAY EVENING
AS THE LOW TRACKS TO THE EAST AND HIGH PRESSURE APPROACHES FROM THE
WEST. STEADY 25-30 KT WINDS ARE LIKELY BY SUNDAY AFTERNOON WITH
GUSTS TO GALE FORCE AROUND 35 KT. THE SYSTEM HAS SHOWED A STRONGER
TREND NOW THAT THE FEATURES DRIVING IT ARE COMING TOGETHER SO 40 KT
IS NOT OUT OF THE QUESTION. WILL CONTINUE WITH THE GALE WATCH FOR
SOUTHERN LAKE MICHIGAN AND THE NEARSHORE WATERS. SOME ICE HAS FORMED
ALONG THE SHORELINE FRIDAY BUT IT LIKELY THIN AND MAY BREAK UP TODAY
THANKS TO MILDER TEMPS AND SOME SUN EARLY. IF NOTHING ELSE
INCREASING WINDS WILL LIKELY BREAK IT UP SO THERE MAY BE LITTLE
TEMPERING AFFECT ON THE WAVES AS A RESULT.

WINDS SLACKEN INTO MONDAY MORNING WITH HIGH PRESSURE PASSING SOUTH
OF THE LAKE LATER IN THE DAY. ANOTHER LOW. SEVERAL LOWS CROSS THE
REGION TUESDAY AND WEDNESDAY BRINGING A PERIOD OF MODEST SOUTHWEST
WINDS BUT A SHIFT TO NORTHWEST WILL OCCUR WEDNESDAY WITH STRONG HIGH
PRESSURE SPREADING IN WEDNESDAY NIGHT.

KREIN

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...WINTER STORM WARNING...ILZ003-ILZ004-ILZ005-ILZ006-ILZ008-ILZ010-
     ILZ011-ILZ012-ILZ013-ILZ014-ILZ019-ILZ020-ILZ021-ILZ022-
     ILZ023-ILZ032-ILZ033-ILZ039...9 PM SATURDAY TO 9 PM SUNDAY.

IN...WINTER STORM WARNING...INZ001-INZ002-INZ010-INZ011-INZ019...9 PM
     SATURDAY TO 9 PM SUNDAY.

LM...GALE WATCH...LMZ080-LMZ671-LMZ673-LMZ675-LMZ740-LMZ741-LMZ742-
     LMZ743-LMZ744-LMZ745-LMZ777-LMZ779-LMZ872-LMZ874-LMZ876-
     LMZ878...NOON SUNDAY TO MIDNIGHT MONDAY.

&&

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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
351 PM CST FRI JAN 30 2015

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
312200-
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-
351 PM CST FRI JAN 30 2015 /451 PM EST FRI JAN 30 2015/

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

ACCUMULATING SNOW IS LIKELY SATURDAY NIGHT THROUGH SUNDAY WITH
SIGNIFICANT ACCUMULATIONS EXPECTED ACROSS MUCH OF THE OUTLOOK AREA.
BLOWING AND DRIFTING SNOW IS LIKELY ON SUNDAY...WHICH COULD RESULT
IN NEAR BLIZZARD CONDITIONS IN OPEN AREAS AND ALONG THE IMMEDIATE
LAKEFRONT.

MINOR LAKESHORE FLOODING IS POSSIBLE LATE SUNDAY INTO SUNDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

LMZ740>745-312200-
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-
351 PM CST FRI JAN 30 2015

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT SUNDAY THROUGH MONDAY. GALE FORCE WINDS ARE POSSIBLE
SUNDAY AFTERNOON THROUGH LATE SUNDAY EVENING. CONDITIONS HAZARDOUS
TO SMALL CRAFT ARE AGAIN POSSIBLE TUESDAY THROUGH TUESDAY NIGHT
AND THEN WEDNESDAY NIGHT THROUGH THURSDAY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-312200-
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-
351 PM CST FRI JAN 30 2015

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

GALE FORCE WINDS ARE POSSIBLE ON THE SOUTHERN THIRD TO HALF OF
THE LAKE SUNDAY AFTERNOON THROUGH LATE SUNDAY EVENING.

&&

RC

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