Gale Warning 3, NWS Chicago, IL

840 
WHUS73 KLOT 121615
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1015 AM CST THU JAN 12 2012

LMZ744-745-130015-
/O.EXT.KLOT.SC.Y.0004.120112T1800Z-120113T0300Z/
/O.EXT.KLOT.GL.W.0003.120113T0300Z-120113T2100Z/
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
1015 AM CST THU JAN 12 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...GALE WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO 3 PM CST
FRIDAY...

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  FROM 3 PM THIS AFTERNOON TO 3 PM CST FRIDAY. 

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 35
  KT FROM THE NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL BE
  14 FT. THERE WILL BE OCCASIONAL WAVES UP TO 20 FT.

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 3 PM
CST THIS AFTERNOON.

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT FROM NOON TODAY TO 
  3 PM CST THIS AFTERNOON. 

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE UP
  TO 20 KT FROM THE WEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL BE
  8 FT. THERE WILL BE OCCASIONAL WAVES UP TO 12 FT.

REFER TO THE LATEST MARINE FORECASTS FOR DETAILED INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE 
SEEK SAFE HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS 
AND/OR WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

LMZ777-779-130015-
/O.CON.KLOT.GL.W.0003.120112T2100Z-120113T2100Z/
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-
1015 AM CST THU JAN 12 2012

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 PM CST FRIDAY...

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  FROM 3 PM THIS AFTERNOON TO 3 PM CST FRIDAY. 

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 40
  KT FROM THE NORTH AND NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT
  WILL BE 16 FT. THERE WILL BE OCCASIONAL WAVES UP TO 24 FT.

REFER TO THE LATEST MARINE FORECASTS FOR DETAILED INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE 
SEEK SAFE HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ740>743-130015-
/O.CON.KLOT.SC.Y.0004.120112T1800Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
1015 AM CST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT...

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT FROM NOON TODAY TO 
  MIDNIGHT CST FRIDAY NIGHT. 

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE 30
  KT FROM THE NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL BE
  10 FT. THERE WILL BE OCCASIONAL WAVES UP TO 15 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

168 
WHUS73 KLOT 122127
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
327 PM CST THU JAN 12 2012

LMZ744-745-130530-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120113T0300Z/
/O.CON.KLOT.GL.W.0003.120113T0300Z-120113T2100Z/
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
327 PM CST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 PM
CST FRIDAY...

A GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 PM
CST FRIDAY. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  FROM 9 PM THIS EVENING TO 3 PM CST FRIDAY.

* DURING THE GALE WARNING...STRONGEST WINDS WILL BE UP TO 35 KT
  FROM THE NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL BE
  12 FT. THERE WILL BE OCCASIONAL WAVES UP TO 16 FT.

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL 9 PM CST 
  THIS EVENING.

* DURING THE SMALL CRAFT ADVISORY...STRONGEST WINDS WILL BE UP TO
  30 KT FROM THE NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL
  BE 6 FT. THERE WILL BE OCCASIONAL WAVES UP TO 9 FT.

REFER TO THE LATEST MARINE FORECASTS FOR DETAILED INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE
SEEK SAFE HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-130530-
/O.CON.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
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-
327 PM CST THU JAN 12 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 3 PM CST FRIDAY.

* DURING THE GALE WARNING...STRONGEST WINDS WILL BE 40 KT FROM THE
  NORTHWEST. HIGHEST SIGNIFICANT WAVE HEIGHT WILL BE 13 FT. THERE
  WILL BE OCCASIONAL WAVES UP TO 19 FT.

REFER TO THE LATEST MARINE FORECASTS FOR DETAILED INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE 
SEEK SAFE HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ740>743-130530-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
327 PM CST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL MIDNIGHT CST 
  FRIDAY NIGHT.

* DURING THE SMALL CRAFT ADVISORY...STRONGEST WINDS WILL BE TO
  30KT FROM THE NORTHWEST. HIGHEST SIGNIFICANT WAVES WILL BE
  10FT. THERE WILL BE OCCASIONAL WAVES UP TO 15 FT.

REFER TO THE LATEST MARINE FORECASTS FOR DETAILED INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

639 
WHUS73 KLOT 130325
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
925 PM CST THU JAN 12 2012

LMZ744-745-131130-
/O.EXP.KLOT.SC.Y.0004.000000T0000Z-120113T0300Z/
/O.CON.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
925 PM CST THU JAN 12 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

THE SMALL CRAFT ADVISORY IS NO LONGER IN EFFECT. A GALE WARNING
REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 3 PM CST FRIDAY.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 35 
  KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES WILL BE 
  UP TO 12 FT. THERE WILL BE OCCASIONAL WAVES UP TO 18 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-131130-
/O.CON.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
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-
925 PM CST THU JAN 12 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST FRIDAY. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 3 PM CST FRIDAY.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 40
  KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES WILL BE UP
  TO 14 FT. THERE WILL BE OCCASIONAL WAVES UP TO 21 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ740>743-131130-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
925 PM CST THU JAN 12 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL MIDNIGHT CST 
  FRIDAY NIGHT.

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE UP
  TO 30 KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES WILL
  BE UP TO 12 FT. THERE WILL BE OCCASIONAL WAVES UP TO 18 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

JEE

822 
WHUS73 KLOT 130922
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
322 AM CST FRI JAN 13 2012

LMZ080-261-362-364-366-563-565-567-669-671-673-675-744-745-777-
779-868-870-872-874-876-878-131730-
/O.CON.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
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-GARY TO BURNS HARBOR-
BURNS HARBOR TO MICHIGAN CITY-
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-
322 AM CST FRI JAN 13 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 3 PM CST THIS AFTERNOON.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 35
  KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES WILL BE UP
  TO 14 FT. THERE WILL BE OCCASIONAL WAVES UP TO 21 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ740>743-131730-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
322 AM CST FRI JAN 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL MIDNIGHT CST 
  TONIGHT.

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE UP
  TO 25 KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES WILL
  BE UP TO 10 FT. THERE WILL BE OCCASIONAL WAVES UP TO 15 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

JEE

578 
WHUS73 KLOT 131521
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
921 AM CST FRI JAN 13 2012

LMZ080-261-362-364-366-563-565-567-669-671-673-675-744-745-777-
779-868-870-872-874-876-878-132100-
/O.CON.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
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-GARY TO BURNS HARBOR-
BURNS HARBOR TO MICHIGAN CITY-
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-
921 AM CST FRI JAN 13 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

A GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 3 PM CST THIS AFTERNOON.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 35 
  KT FROM THE NORTH. THE HIGHEST SIGNIFICANT WAVES WILL BE UP 
  TO 14 FT. THERE WILL BE OCCASIONAL WAVES UP TO 21 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

LMZ740>743-132330-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
921 AM CST FRI JAN 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL MIDNIGHT CST 
  TONIGHT.

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE 
  UP TO 30 KT FROM THE NORTHWEST. THE HIGHEST SIGNIFICANT WAVES 
  WILL BE UP TO 10 FT. THERE WILL BE OCCASIONAL WAVES UP TO 15 
  FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

BMD

766 
WHUS73 KLOT 132101
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
301 PM CST FRI JAN 13 2012

LMZ744-745-140515-
/O.EXP.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
/O.EXB.KLOT.SC.Y.0004.000000T0000Z-120114T1000Z/
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
301 PM CST FRI JAN 13 2012

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SATURDAY...
...GALE WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM CST SATURDAY. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL 4 AM CST 
  SATURDAY.

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE 
  UP TO 25 KT FROM THE WEST. THE HIGHEST SIGNIFICANT WAVES WILL 
  BE UP TO 12 FT. THERE WILL BE OCCASIONAL WAVES UP TO 18 FT.

THE GALE WARNING IS NO LONGER IN EFFECT. 

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-132215-
/O.EXP.KLOT.GL.W.0003.000000T0000Z-120113T2100Z/
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-
301 PM CST FRI JAN 13 2012

...GALE WARNING HAS EXPIRED...

THE GALE WARNING IS NO LONGER IN EFFECT. 

$$

LMZ740>743-140515-
/O.CON.KLOT.SC.Y.0004.000000T0000Z-120114T0600Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
301 PM CST FRI JAN 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL MIDNIGHT CST 
  TONIGHT.

* DURING THE SMALL CRAFT ADVISORY...THE STRONGEST WINDS WILL BE 
  UP TO 20 KT FROM THE WEST. THE HIGHEST SIGNIFICANT WAVES WILL 
  BE UP TO 9 FT. THERE WILL BE OCCASIONAL WAVES UP TO 14 FT.

REFER TO THE LATEST MARINE FORECASTS FOR MORE DETAILED
INFORMATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OF 22 TO 33 KNOTS AND/OR
WAVES GREATER THAN 4 FT WILL PRODUCE HAZARDOUS WAVE CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE
OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

BMD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
309 AM CST THU JAN 12 2012

.DISCUSSION...
309 AM CST

NEAR TERM (NOW THROUGH FRIDAY)...

VERY LITTLE CHANGE FROM PREVIOUS FORECAST WITH ONLY REAL ADJUSTMENT
BEING UPGRADING TO A WARNING FOR PORTER COUNTY DUE TO SOME LAKE
ENHANCEMENT THIS AFTERNOON POSSIBLY INTO VERY EARLY THIS EVENING.

POTENT VORT MAX EVIDENT ON WATER VAPOR IMAGERY OVER KS EARLY THIS
MORNING WILL CONTINUE TO CHARGE EASTWARD AND RESULT IN ENTIRE TROUGH
AXIS BECOMING INCREASINGLY NEGATIVELY TILTED TODAY INTO TONIGHT. AS
THIS OCCURS THE NORTH-SOUTH AXIS OF LIGHT-MODERATE SNOW EXTENDING
FROM WESTERN WI SOUTH INTO MISSOURI AT 09Z IS LIKELY TO GRADUALLY
BECOME RE-ORIENTED INTO A MORE NW-SE AXIS AS IT SHIFTS SLOWLY
EASTWARD. THE RE-ORIENTATION THATS EXPECTED TO TAKE PLACE WILL
RESULT IN A DECELERATION OF THE EASTWARD PROGRESSION OF THE SNOW
OVER NORTHWEST ILLINOIS AND STILL ANTICIPATE IT BEING LATE MORNING
BEFORE SNOW BREAKS OUT IN METRO CHICAGO AND POSSIBLY NOT TIL MID
MORNING AS FAR WEST AS ROCKFORD.

AS HAS BEEN NOTED FOR A COUPLE DAYS NOW...THE SYSTEM WILL NOT HAVE
AN ABUNDANCE OF MOISTURE TO WORK WITH HOWEVER WHAT IT LACKS IN
MOISTURE IT LOOKS TO MAKE UP FOR IN FORCING AND DURATION. AS THE
INTENSE COMPACT CLOSED LOW PLOWS EAST ITS PROGGED TO DEEPEN TODAY
RESULTING IN VERY IMPRESSIVE 12HR/500MB HEIGHT FALLS OVER 200DM VERY
DEEP MODERATE ASCENT EXPECTED. SYNOPTICALLY STILL APPEARS AS THOUGH
QPF ACROSS THE CWA WILL BE FAIRLY UNIFORM AND SUPPORTIVE OF A SOLID
4-8 INCH SNOWFALL CWA-WIDE. THERMAL PROFILES ARE A BIT WARMER THAN
IN PREVIOUS RUNS RESULTING IN SLIGHTLY LESS FAVORABLY DEEP DENDRITIC
GROWTH ZONE (DGZ) WHICH COULD CUT BACK ON SNOW:LIQUID RATIOS A BIT.
IN ADDITION...THE STRONG WINDS ALSO ARE NOT SUPPORTIVE OF
EXCEPTIONALLY HIGH SNOW:LIQUID RATIOS AND THINK A REASONABLE BALL
PARK GUESS IS THAT THEY WILL GENERALLY END UP IN THE BALLPARK OF
10-15:1.

INTERESTINGLY...SOME OF THE HI-RES MESOSCALE MODELS ARE SUGGESTING
THAT THERE COULD BE SOME MESOSCALE BANDING OF HEAVY SNOW DEVELOPING
BY THIS AFTERNOON OVER PORTIONS OF OUR CWA IN ASSOCIATION WITH
STRENGTHENING LOW LEVEL FRONTOGENETIC CIRCULATION. SHOULD THAT OCCUR
IT WOULD NOT BE AT ALL HARD TO ENVISION A BAND OF SNOWFALL TOTALS IN
8-12 INCH RANGE...PARTICULARLY CLOSE TO PIVOT POINT WHERE HEAVIER
SNOW BAND WILL SIT THE LONGEST AS THE ORIENTATION GOES FROM WNW-ESE
TO MORE NE-SW TONIGHT. REALLY IMPOSSIBLE TO PINPOINT THOSE TYPE OF
MESO-BETA SCALE TYPE PHENOMENA THIS FAR IN ADVANCE SO RATHER THAN
BLANKETING 23 COUNTIES WITH A WARNING WHEN ITD PROBABLY ONLY BE A
FRACTION OF THOSE REACH CRITERIA HAVE OPTED TO LET THE ADVISORY
RIDE WITH 4-8 INCH AMOUNTS AND JUST MENTION LOCALLY HEAVIER TOTALS
IN THE WSW. AS MESOSCALE DETAILS START TO UNFOLD LATER TODAY ITS
POSSIBLE THAT THE DAY SHIFT MAY NEED TO UPGRADE PORTIONS OF THE
ADVISORY TO A WARNING.

HAVE OPTED TO UPGRADE PORTER COUNTY INDIANA TO A WARNING...AS LOW
LEVEL TRAJECTORIES COULD ALLOW FOR A PERIOD OF LAKE ENHANCED
SNOWFALL THIS AFTERNOON. THE WINDOW OF OPPORTUNITY FOR LAKE
ENHANCEMENT FOR NE PORTER LOOKS SMALL AS CONDITIONS ARE LIKELY TO
BECOMING INCREASINGLY SUPPORTIVE OF LAKE ENHANCEMENT THIS AFTERNOON
BUT AT THE SAME TIME WINDS WILL BE BACKING WHICH SHOULD SENDING ANY
THREAT OF LAKE ENHANCEMENT EAST INTO IWX-LAND. BEFORE THAT OCCURS
SEEMS PLAUSIBLE THAT THE OCCURS COULD EASILY SEE NE PORTER PICKING
UP A COUPLE BONUS INCHES OF SNOW OFF THE LAKE.

SNOW LOOKS TO START WINDING DOWN AFTER MIDNIGHT AND ENDING
EVERYWHERE BY MID-LATE MORNING FRIDAY. NO CHANGES PLANNED TO THE
TIMING OF THE HEADLINES. WITH WINDS LIKELY TO GUST TO OVER 30 MPH
THIS AFTERNOON AND TONIGHT BLOWING AND DRIFTING SNOW WILL LIKELY BE
AN ISSUE WITH THIS STORM...PARTICULARLY TONIGHT AS SNOW BECOMES
FLUFFIER INCREASING ITS "BLOW-ABILITY".

IZZI

IN-BETWEEN TERM (FRIDAY NIGHT THROUGH SATURDAY NIGHT)...

IN THE WAKE OF THE STORM FOCUS WILL TURN TO TEMPS FRIDAY
NIGHT...WHICH WILL ULTIMATELY BE CLOSELY TIED TO HOW MUCH (IF ANY
CLEARING) WE SEE. MODELS ALL SUGGEST THAT STRATUS WILL CLEAR OUT
FRIDAY EVENING...BUT MODELS ARE ALSO NOTORIOUS FOR BREAKING STRATUS
UP TOO QUICKLY. SUSPECT THAT THERE IS A VERY REAL CHANCE THAT THE
STRATUS MAY NOT CLEAR OUT AT ALL BEFORE CLOUDINESS WITH SATURDAY'S
CLIPPER ARRIVES LATE FRIDAY NIGHT INTO SAT MORNING. GIVEN THE LOW
CONFIDENCE AT THIS DISTANCE HAVE TAKEN A CONSERVATIVE/MIDDLE OF THE
ROAD APPROACH TO TEMPS. ON THE ONE EXTREME...IF SKIES CLEAR OUT
WITH THE SURFACE RIDGE AXIS APPROACHING ITS A VERY REAL
POSSIBILITY THAT LOWS COULD DROP TO BETWEEN ZERO TO
-10...PARTICULARLY OVER NORTH CENTRAL ILLINOIS. CONVERSELY...IF
STRATUS HANGS ON TEMPS MAY END UP MOST IN THE LOW TO MID
TEENS...WHICH I SUSPECT IS PROBABLY THE MORE LIKELY SCENARIO.

BY SATURDAY A FAST MOVING CLIPPER IS PROGGED TO ZIP SOUTHEASTWARD
ACROSS THE MIDWEST. NOT AN OVERLY STRONG SYSTEM AND WILL BE MOISTURE
STARVED...BUT WITH PERSISTENT WARM AIR ADVECTION MIGHT BE ABLE TO
LAY DOWN A BAND OF AN INCH OR SO OF SNOW. MODELS GENERALLY TRACK
SURFACE LOW FROM NORTHERN IOWA INTO SOUTHERN ILLINOIS WHICH WOULD
FAVOR OUR WESTERN CWA FOR HIGHEST CHANCES OF SNOW. HAVE TRENDED POPS
UP IN THE GRIDS AGAIN...WELL ABOVE MOS GUIDANCE AND MORE IN LINE
WITH HPC QPF FORECAST OF GREATER THAN A TENTH OF AN INCH. CLIPPER
SHOULD BE OUT OF THE AREA BY LATER SATURDAY EVENING WITH CLOUDS
PROBABLY STICKING AROUND AND KEEPING TEMPS SOMEWHAT IN CHECK
SATURDAY NIGHT.

IZZI

LONG TERM (SUNDAY THROUGH WEDNESDAY)...

THE POLAR JET WHICH HAD BEEN ANCHORED TO OUR NORTH MUCH OF THE
WINTER WILL BE MORE PRESENT OVER THE MID-SECTION OF THE COUNTRY.
THIS SEEMS TIED TO A MORE ORGANIZED POLAR VORTEX DEVELOPING OVER
NORTHERN CANADA/BAFFIN ISLAND...A FEATURE CONDUCIVE FOR STEERING
COLD AIR PERIODS INTO CENTRAL CANADA AND OFTEN THE EASTERN HALF OF
THE U.S. THAT SAID...A RECOVERY FROM OUR IMMEDIATE COLD AIR SNAP
WILL BE SEEN AT THE START OF NEXT WEEK WITH 850 MB TEMPERATURES
RETURNING TO ABOVE ZERO BY MONDAY WITHIN DEEP SOUTHWEST FLOW. THE
PATTERN ACTUALLY WILL BRIEFLY RESEMBLE MUCH OF THE PAST
MONTH...HOWEVER ANTICIPATED SNOW COVER ON THE GROUND THROUGHOUT THE
REGION SHOULD KEEP THE NEAR-SURFACE AIR MASS COOLER THAN WHAT WE
HAVE SEEN RECENTLY WITH THE SAME TYPE OF AIR MASS. IN
ADDITION...MORE COLUMN MOISTURE IS PROJECTED IN ALL LONG RANGE
GUIDANCE DURING MONDAY...A HINT AT STRATUS WHICH WOULD BE MORE
FAVORED WITH MOIST AND MILD RETURN FLOW OVER SNOW COVER. HAVE GUIDED
MORE TOWARDS A BLEND OF RAW GUIDANCE FOR HIGHS AS OPPOSED TO THE
BIAS-CORRECTED WHICH HAS WORKED SO WELL FOR HIGH TEMPERATURES THE
PAST MONTH TO MONTH AND A HALF. FOR SUN NIGHT AND MON NIGHT HAVE
TRENDED TOWARDS THE MILDER BIAS-CORRECTED FORECASTS.

A COLD FRONT IS EXPECTED TO WORK THROUGH SOMETIME MONDAY NIGHT OR
TUESDAY...WITH A POTENTIAL LOW DEVELOPING ALONG IT DURING THAT
PERIOD. A MEAN SOLUTION ON THE MODELS HAS A LOW TRACKING NEAR OR
JUST TO THE WEST OF THE AREA. THIS WOULD AT LEAST INTRODUCE
THICKNESSES SUPPORTIVE OF RAIN/DRIZZLE DURING MONDAY AND MONDAY
NIGHT IN ANY PRECIPITATION THAT FALLS...AND THE CHANCE FOR
POTENTIALLY RAIN CHANGING TO SNOW LATER ON. SLOWER HAS BEEN BETTER
WITH SYSTEMS RECENTLY...AND THE 12.00 EC SLOWED EVEN FURTHER FROM
ITS PRECEDING RUN. CONFIDENCE IN THIS PERIOD IS LOW THOUGH WITH A
LOW DEVELOPING ALONG A FRONT WITH A SYSTEM THAT IS STILL WELL
OFFSHORE THE WEST COAST. INTERESTINGLY ENOUGH...DEW POINTS ARE
FORECAST TO CREEP UP TO THE MID 30S TO POSSIBLY LOWER 40S IN THE
FORECAST AREA...WHICH COMBINED WITH ANY RAIN/DRIZZLE WOULD LEAD TO
QUICK SNOW MELT AND POSSIBLY ADVECTION FOG.

BEYOND...BOTH THE 12.00 GFS AND EC HAVE THE NEXT COLD AIR DOME BUILT
IN SOUTHERN CANADA BY MIDWEEK WITH 850 MB TEMPS OF -30C OR COLDER.
THEY BOTH DIFFER VASTLY FROM RUN TO RUN IN HOW FAR SOUTH AND EAST
AND HOW QUICKLY THIS EVOLVES...AND WHETHER OR NOT IT WILL EVEN GET
HERE. THE JET LOOKS TO REMAIN ACTIVE AS WELL...SO CONFIDENCE IN THIS
PERIOD IS LOW.

MTF

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 08Z...

* CEILINGS LOWING TO MVFR BY ARND 10Z...LOWERING TO IFR SHORTLY
  AFTER THE SNOW ONSET.

* SNOW DEVELOPING BY ARND 16Z AND CONTINUING THROUGH THE
  REMAINDER OF THE FORECAST PERIOD.

* VIS DROPPING TO IFR LIKELY SHORTLY AFTER SNOW ONSET. PERIODS OF
  1/2SM VIS LIKELY FROM LATE AFTERNOON THROUGH THE EVENING WITH
  INCREASING SNOWFALL RATES AND INCREASING WINDS.

* CHANCE OF VIS DROPPING TO 1/4SM OR LESS DURING THE EARLY EVENING
  AS BLOWING SNOW DEVELOPS AS DECREASING TEMPERATURES CAUSE A
  DRIER SNOW CHARACTERISTIC.

KREIN

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

NOT MUCH CHANGE FROM PREVIOUS THINKING.

THE FIRST APPRECIABLE WINTER WEATHER EVENT OF THE SEASON IS STILL
SET TO IMPACT THE TERMINALS FOR MUCH OF THE DAY ON THURSDAY AND INTO
THURSDAY NIGHT. THIS IS A RATHER COMPLEX AND DYNAMICAL STORM
SYSTEM THAT LOOKS TO BRING A PERIOD OF MODERATE TO HEAVY SNOW TO
THE NORTHEASTERN ILLINOIS TERMINALS DURING THE AFTERNOON AND
EVENING HOURS ON THURSDAY. THIS WILL BE THE MAIN CONCERN AS SNOW
AND BLOWING SNOW WILL LIKELY LEAD TO A PERIOD OF IFR TO LIFR VIS
AND CIGS THURSDAY AFTERNOON AND INTO THE EVENING.

THE MAIN COLD FRONT IS NOW MOVING ACROSS NORTH CENTRAL IL
NEAR KRFD. THIS FRONT SHOULD MOVE ACROSS NORTHEASTERN
ILLINOIS AFTER 07 UTC TONIGHT. BEHIND THIS FRONT...EXPECT WINDS TO
BECOME GUSTY OUT OF THE NORTHWEST. THE MAIN SURFACE LOW MOVING NORTH
ACROSS THE OHIO VALLEY LATE THIS EVENING...WILL QUICKLY INTENSIFY
DURING THE MORNING ON THURSDAY ACROSS THE GREAT LAKES REGION. THIS
WILL SET THE STAGE FOR GUSTY NORTHWEST WINDS THROUGH THE REMAINDER
OF THE FORECAST PERIOD.

AS FAR AS SNOWFALL...IT APPEARS SNOWFALL WILL BEGIN DURING
THE MID TO LATE MORNING HOURS (AFTER 16 UTC AT THE NORTHEASTERN
ILLINOIS TERMINALS) AS STRONG FORCING FOR ASCENT COMMENCES IN
RESPONSE TO THE ATMOSPHERIC DYNAMICS OF THIS DEEPENING SURFACE
LOW. I EXPECT THE ONSET TIME TO OCCUR AROUND OR SHORTLY AFTER 12
UTC AT KRFD. THE SNOW SHOULD PICK UP IN INTENSITY DURING THE
AFTERNOON HOURS (AFTER 19 UTC) AS THE DYNAMICS REACH A PEAK ALONG
THE LEADING EDGE OF THE COLDEST AIR. THIS STILL APPEARS TO
POSSIBLY RESULT IN A PERIOD OF VISIBILITIES IN SNOW AND BLOWING
SNOW UNDER 1/2 MILE THROUGH THE AFTERNOON AND EARLY EVENING. THE
SNOWFALL SHOULD BEGIN TO ABATE LATER THURSDAY NIGHT INTO FRIDAY
MORNING AS THE STORM SYSTEM SHIFTS EAST ACROSS THE EASTERN GREAT
LAKES.

KJB

//ORD AND MDW CONFIDENCE...UPDATED 08Z...

* HIGH CONFIDENCE WITH CEILING AND WIND TRENDS.

* HIGH CONFIDENCE OF SNOW WITH MEDIUM CONFIDENCE OF TIMING AND VIS
  TRENDS ON THURSDAY.

* LOWER CONFIDENCE IN THE PROBABILITY OF VISIBILITY OCCASIONALLY
  DROPPING TO 1/4SM OR LESS

KREIN

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

FRIDAY...IFR CIGS/VIS EARLY IN SNOW AND BLOWING SNOW. CONDITIONS
IMPROVING THROUGH THE DAY.

SATURDAY...CHANCE OF SNOW WITH MVFR CIGS/VIS.

SUNDAY...VFR.

MONDAY AND TUESDAY...CHANCE OF SNOW SHOWERS WITH MVFR CIGS/VIS.

KJB

&&

.MARINE...
309 AM CST

A LOW PRESSURE SYSTEM OVER OHIO WILL MOVE INTO MICHIGAN THIS
AFTERNOON AND STRENGTHEN.  IN ADDITION...ARCTIC AIR WILL POUR INTO
THE REGION TODAY.  BETWEEN THESE TWO COMPONENTS...LOW END GALES WILL
FORM ACROSS LAKE MICHIGAN TODAY.  WINDS WILL BE NORTH TO NORTHWEST
ALONG THE LAKE...THEREFORE EXPECTING GALES TO LEAK INTO THE INDIANA
NEARSHORE ZONES AS WELL.  UPGRADED THE GALE WATCH TO A GALE WARNING
WITH THIS ISSUANCE.  THE LOW QUICKLY MOVES EASTWARD FRIDAY AND HIGH
PRESSURE MOVES IN BEHIND IT FRIDAY NIGHT INTO SATURDAY.  WINDS WILL
BECOME WESTERLY AND DIMINISH QUICKLY BEHIND THE LOW...BUT EXPECTING
HIGH WAVES TO PERSIST THROUGH EARLY FRIDAY NIGHT IN THE NEARSHORE
ZONES.  A WEAKENING LOW PRESSURE SYSTEM PASSES SOUTH OF THE LAKE
LATE SATURDAY...AND WILL HAVE LITTLE TO NO IMPACT ON THE LAKE.
WINDS REMAIN WEAK THROUGH THE WEEKEND BUT BEGIN TO TURN SOUTHERLY
AND INCREASE SUNDAY EVENING AS THE PRESSURE GRADIENT INCREASES
BETWEEN HIGH PRESSURE OVER THE ATLANTIC COAST AND A DEVELOPING LOW
PRESSURE SYSTEM OVER MANITOBA.

JEE

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...WINTER WEATHER ADVISORY...ILZ003-ILZ004-ILZ008-ILZ010-ILZ011-
     ILZ019-ILZ021-ILZ032...6 AM THURSDAY TO 4 AM FRIDAY.

     WINTER WEATHER ADVISORY...ILZ005-ILZ006-ILZ012-ILZ013-ILZ014-
     ILZ020-ILZ022-ILZ023-ILZ033-ILZ039...9 AM THURSDAY TO 9 AM
     FRIDAY.

IN...WINTER WEATHER ADVISORY...INZ001-INZ002-INZ010-INZ011-INZ019...9
     AM THURSDAY TO 9 AM FRIDAY.

LM...GALE WARNING...LMZ080-LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ744-LMZ745-LMZ777-
     LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...3 PM
     THURSDAY TO 3 PM FRIDAY.

     SMALL CRAFT ADVISORY...LMZ740-LMZ741-LMZ742-LMZ743...NOON
     THURSDAY TO MIDNIGHT SATURDAY.

     SMALL CRAFT ADVISORY...LMZ744-LMZ745...NOON THURSDAY TO 3 PM
     THURSDAY.

&&

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
929 PM CST WED JAN 11 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
130330-
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-
929 PM CST WED JAN 11 2012 /1029 PM EST WED JAN 11 2012/

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

.DAY ONE...OVERNIGHT.

SNOW WILL LIKELY DEVELOP TOWARDS DAYBREAK OVER NORTH CENTRAL
ILLINOIS...MAINLY WEST OF INTERSTATE 39. LITTLE TO NO
ACCUMULATION IS EXPECTED PRIOR TO DAYBREAK.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

ACCUMULATING SNOW IS ANTICIPATED THURSDAY AND THURSDAY NIGHT...
ENDING FRIDAY MORNING. THE GREATEST ACCUMULATIONS ARE FORECAST
ACROSS NORTHEAST ILLINOIS AND NORTHWEST INDIANA DURING THE
AFTERNOON AND EARLY EVENING. IN ADDITION TO THE FIRST APPRECIABLE
ACCUMULATION OF THE SEASON...STRONG WINDS WILL RESULT IN BLOWING
AND DRIFTING SNOW DURING THURSDAY NIGHT.

THERE IS A CHANCE OF ACCUMULATING LIGHT SNOW AGAIN SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY OVERNIGHT...BUT ANY
SNOWFALL REPORTS DURING THURSDAY INTO EARLY FRIDAY WOULD BE
APPRECIATED.

&&

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

LMZ740>745-130330-
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-
929 PM CST WED JAN 11 2012

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

.DAY ONE...OVERNIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT THURSDAY AFTERNOON THROUGH FRIDAY NIGHT WITH A PERIOD
OF GALE FORCE WINDS PROBABLE ALONG THE INDIANA SHORE.

FREEZING SPRAY IS EXPECTED THURSDAY NIGHT INTO FRIDAY.

&&

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-
870-872-874-876-878-130330-
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-
929 PM CST WED JAN 11 2012

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

.DAY ONE...OVERNIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

GALE FORCE WINDS AND FREEZING SPRAY ARE EXPECTED THURSDAY NIGHT
INTO FRIDAY.

&&

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

MTF