Gale Warning 38, NWS Chicago, IL

853 
WHUS73 KLOT 240321
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1021 PM CDT SUN SEP 23 2012

LMZ744-745-241130-
/O.CAN.KLOT.SC.Y.0088.000000T0000Z-120924T1500Z/
/O.CON.KLOT.SC.Y.0089.120924T1800Z-120925T1000Z/
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
1021 PM CDT SUN SEP 23 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM MONDAY TO
5 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

* WINDS...SOUTHWEST WINDS TO 30 KT.

* SIGNIFICANT WAVES...4 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

LMZ740>743-241130-
/O.CAN.KLOT.SC.Y.0088.000000T0000Z-120924T0500Z/
/O.CON.KLOT.SC.Y.0089.120924T1800Z-120925T1000Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
1021 PM CDT SUN SEP 23 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM MONDAY TO
5 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

* WINDS...SOUTHWEST WINDS TO 30 KT.

* SIGNIFICANT WAVES...4 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

LMZ261-362-364-563-241130-
/O.CON.KLOT.GL.W.0038.120924T1400Z-120925T0300Z/
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
1021 PM CDT SUN SEP 23 2012

...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 10 PM CDT MONDAY...

* WINDS...SOUTHWEST TO 45 KT.

* SIGNIFICANT WAVES...14 TO 18 FT.

* OCCASIONAL WAVES...UP TO 27 FT.

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.

&&

$$

LMZ366-565-567-669-868-870-241130-
/O.CON.KLOT.GL.W.0038.120924T1400Z-120925T0900Z/
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
1021 PM CDT SUN SEP 23 2012

...GALE WARNING REMAINS IN EFFECT FROM 9 AM MONDAY TO 4 AM CDT
TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ671-673-675-872-874-876-241130-
/O.CON.KLOT.GL.W.0038.120924T2000Z-120925T0900Z/
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 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-
1021 PM CDT SUN SEP 23 2012

...GALE WARNING REMAINS IN EFFECT FROM 3 PM MONDAY TO 4 AM CDT
TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

RODRIGUEZ

388 
WHUS73 KLOT 240918
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
418 AM CDT MON SEP 24 2012

LMZ080-777-779-878-241730-
/O.EXA.KLOT.GL.W.0038.120924T2000Z-120925T0900Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
418 AM CDT MON SEP 24 2012

...GALE WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CDT
TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO 4 AM CDT
TUESDAY. 

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ261-362-364-563-241730-
/O.CON.KLOT.GL.W.0038.120924T1400Z-120925T0300Z/
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
418 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 10 PM
CDT THIS EVENING...

* WINDS...SOUTHWEST TO 40 KT. OCCASIONAL GALE FORCE GUSTS TO 45 KT
  ARE POSSIBLE THIS AFTERNOON.

* SIGNIFICANT WAVES...13 TO 17 FT.

* OCCASIONAL WAVES...UP TO 26 FT.

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.

&&

$$

LMZ366-565-567-669-868-870-241730-
/O.CON.KLOT.GL.W.0038.120924T1400Z-120925T0900Z/
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
418 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM
CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ671-673-675-872-874-876-241730-
/O.CON.KLOT.GL.W.0038.120924T2000Z-120925T0900Z/
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 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-
418 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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>745-241730-
/O.CON.KLOT.SC.Y.0089.120924T1800Z-120925T1000Z/
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-
418 AM CDT MON SEP 24 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 5 AM CDT TUESDAY...

* WINDS...SOUTHWEST WINDS TO 25 KT.

* SIGNIFICANT WAVES...4 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

JEE

318 
WHUS73 KLOT 241409
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
909 AM CDT MON SEP 24 2012

LMZ261-362-364-563-242215-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0300Z/
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
909 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WINDS...SOUTHWEST TO 40 KT WITH OCCASIONAL GALE FORCE GUSTS TO
  45 KT THIS AFTERNOON.

* SIGNIFICANT WAVES...13 TO 17 FT.

* OCCASIONAL WAVES...UP TO 26 FT.

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.

&&

$$

LMZ366-565-567-669-868-870-242215-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
909 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 40 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ080-671-673-675-777-779-872-874-876-878-242215-
/O.CON.KLOT.GL.W.0038.120924T2000Z-120925T0900Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
909 AM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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>745-242215-
/O.CON.KLOT.SC.Y.0089.120924T1800Z-120925T1000Z/
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-
909 AM CDT MON SEP 24 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 5 AM CDT TUESDAY...

* WINDS...SOUTHWEST WINDS TO 25 KT.

* SIGNIFICANT WAVES...3 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

BMD

021 
WHUS73 KLOT 242004
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
304 PM CDT MON SEP 24 2012

LMZ261-362-364-563-250300-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0300Z/
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
304 PM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WINDS...SOUTHWEST TO 40 KT.

* SIGNIFICANT WAVES...12 TO 16 FT.

* OCCASIONAL WAVES...UP TO 24 FT.

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.

&&

$$

LMZ366-565-567-669-868-870-250415-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
304 PM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ080-671-673-675-777-779-872-874-876-878-250415-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
304 PM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...8 TO 12 FT.

* OCCASIONAL WAVES...UP TO 18 FT.

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>745-250415-
/O.CON.KLOT.SC.Y.0089.000000T0000Z-120925T1000Z/
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-
304 PM CDT MON SEP 24 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM CDT
TUESDAY...

* WINDS...SOUTHWEST WINDS TO 30 KT.

* SIGNIFICANT WAVES...3 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

BMD

647 
WHUS73 KLOT 250206
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
906 PM CDT MON SEP 24 2012

LMZ261-362-364-563-250315-
/O.CAN.KLOT.GL.W.0038.000000T0000Z-120925T0300Z/
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
906 PM CDT MON SEP 24 2012

...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE GALE
WARNING. 

WINDS HAVE DIMINISHED BELOW GALE FORCE AND WILL SHIFT NORTH BEHIND
A COLD FRONT LATE THIS EVENING. 

$$

LMZ366-565-567-669-868-870-250900-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
906 PM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...10 TO 14 FT.

* OCCASIONAL WAVES...UP TO 21 FT.

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.

&&

$$

LMZ080-671-673-675-777-779-872-874-876-878-250900-
/O.CON.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
906 PM CDT MON SEP 24 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY...

* WINDS...SOUTHWEST TO 35 KT.

* SIGNIFICANT WAVES...8 TO 12 FT.

* OCCASIONAL WAVES...UP TO 18 FT.

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>745-251000-
/O.CON.KLOT.SC.Y.0089.000000T0000Z-120925T1000Z/
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-
906 PM CDT MON SEP 24 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM CDT
TUESDAY...

* WINDS...SOUTHWEST WINDS TO 25 KT.

* SIGNIFICANT WAVES...3 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

RATZER

399 
WHUS73 KLOT 250846
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
346 AM CDT TUE SEP 25 2012

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-251000-
/O.CAN.KLOT.GL.W.0038.000000T0000Z-120925T0900Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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-
346 AM CDT TUE SEP 25 2012

...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE GALE
WARNING. 

$$

LMZ740>745-251000-
/O.CON.KLOT.SC.Y.0089.000000T0000Z-120925T1000Z/
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-
346 AM CDT TUE SEP 25 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM CDT EARLY
THIS MORNING...

* WINDS...SOUTHWEST WINDS TO 25 KT.

* SIGNIFICANT WAVES...3 TO 6 FT.

* OCCASIONAL WAVES...UP TO 9 FT.

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 CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

JEE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
333 PM CDT SUN SEP 23 2012

.DISCUSSION...
253 PM CDT

MAIN CONCERNS FOR THIS AFTERNOON ARE OVERNIGHT LOW TEMPS AND FROST
POTENTIAL...AND STALLING FRONTAL ZONE AND PRECIP CHANCES THROUGH
MUCH OF THE UPCOMING WEEK.

THIS AFTERNOON...SURFACE HIGH PRESSURE IS CENTERED OVER THE MID AND
UPPER MISSISSIPPI VALLEY WHILE STRONG SUBSIDENCE IS NOTED ALOFT ON
WATER VAPOR IMAGERY BEHIND SPEED MAX/SHEARED VORT LOBE ENTERING THE
BASE OF THE LONGWAVE TROUGH. THIS HAS LED TO FAIR CONDITIONS ACROSS
THE CWA WITH ONLY SOME FLAT CUMULUS DEVELOPING TODAY.

TONIGHT...THE SURFACE RIDGE IS EXPECTED TO PROGRESS EAST ACROSS THE
REGION ALLOWING THE PRESSURE GRADIENT AND RESULTANT SOUTHWESTERLY
FLOW IN INCREASE SOME TOWARDS DAYBREAK. DESPITE THE LIGHT WINDS THAT
MAY OCCUR IN THE PREDAWN HOURS...STRONG H5 HEIGHT RISES AND
SUBSIDENCE SHOULD LEAD TO MOSTLY CLEAR SKIES TONIGHT AND DRY
CONDITIONS/DEWPOINTS SHOULD ALLOW TEMPERATURES TO QUICKLY RESPOND.
SO WHILE NOT COMPLETELY IDEAL FOR STRONG RADIATIONAL COOLING...STILL
EXPECT TEMPERATURES TO FALL INTO THE MID 30S ACROSS THE AREA AWAY
FROM LAKE MICHIGAN AND THE URBAN HEAT ISLAND OF CHICAGO. AS COMPARED
TO LAST NIGHT...EXPECT TEMPERATURE TO BE SLIGHTLY WARMER ACROSS THE
WEST WHERE THE GRADIENT INCREASES SOONEST...AND SLIGHTLY COOLER
ACROSS THE FAR SOUTHEAST CLOSEST TO THE RIDGE AXIS. GIVEN THE
INCREASING WINDS FEEL THAT FROST POTENTIAL MAY BE A LITTLE MORE
MARGINAL TONIGHT ACROSS OUR WEST BUT STILL EXPECT TEMPS TO FALL INTO
THE MID 30S ACROSS MUCH OF THE CWA SO WILL GO AHEAD AND ISSUE
ANOTHER FROST ADVISORY FOR ALL COUNTIES EXCEPT COOK.

MONDAY THROUGH MONDAY NIGHT...
MONDAY...WITH THE RIDGE AXIS OFF THE TO THE EAST...WARM ADVECTION
BEGINS TO OVERSPREAD THE REGION WITH H85 TEMPS RISING FROM LOW
SINGLE DIGITS OVERNIGHT TONIGHT TO AROUND 10-12C MONDAY EVENING.
SHOULD SEE A GRADUAL INCREASE IN CLOUD COVER AS WE SATURATE FROM
ISENTROPIC ASCENT. MONDAY NIGHT...THERE IS DECENT CONSENSUS AMONGST
MODEL GUIDANCE THAT ELEVATED SHOWERS AND THUNDERSTORMS DEVELOP JUST
SOUTH OF THE CWA...WITH A CHANCE THAT SOME SHOWERS MOVE INTO THE
SOUTHERN COUNTIES OF OUR CWA. DESPITE THE INCREASE IN PWATS THROUGH
THE NIGHT TO AROUND 1.25-1.50 INCHES AND MODEST INSTABILITY OF
500-700 J/KG...THERE IS AN APPARENT LACK OF ANY UPPER LEVEL SUPPORT
MONDAY NIGHT AND NOT CONFIDENT IN HOW THIS PORTION OF THE FORECAST
MIGHT PLAY OUT. DELAYED THE ONSET BUT MAINTAINED SLT CHC AND LOW END
CHC POPS FOR THIS PERIOD.

TUESDAY THOUGH WEDNESDAY NIGHT...
MODELS ARE IN DECENT AGREEMENT TIMING A COLD FRONT SLIPPING SOUTH
ACROSS THE AREA TUESDAY AFTERNOON. AGAIN LITTLE IN THE WAY OF UPPER
LEVEL SUPPORT SO CHANCES FOR PRECIP APPEAR MINIMAL...BUT MAINTAINED
CHC POPS ACROSS THE SOUTHERN CWA WHERE WEAK INSTABILITY MAY EXIST.
FOR HIGH TEMPERATURES TUESDAY...BLENDED ECMWF AND GEM GUIDANCE WHICH
TEND TO PERFORM BETTER IN THIS TYPE OF WARMUP SITUATION. EXPECT MID
TO UPPER 70S ACROSS THE AREA...WITH PORTIONS OF THE WESTERN AND
SOUTHWESTERN CWA PUSHING 80F. THE FRONTAL BOUNDARY SLOWS AS ITS
DROPS ACROSS THE CWA TUESDAY NIGHT AND WILL LIKELY STALL ACROSS THE
SOUTHERN COUNTIES OR JUST SOUTH OF THE CWA. TEMPERATURES FOR
WEDNESDAY ARE SHAKY...DEPENDING ON EXACTLY WHERE THE BOUNDARY
SETS...BUT EXPECT A MODEST GRADIENT TO DEVELOP FROM NORTH TO SOUTH
ACROSS THE CWA.

THURSDAY THROUGH SUNDAY...
SPREAD IN MODEL SOLUTIONS REALLY BEGINS TO INCREASE NEAR THE END OF
THE WEEK AND ESPECIALLY NEXT WEEKEND LEADING TO A LOW DEGREE OF
CONFIDENCE. GENERALLY SPEAKING...HIGH PRESSURE IS EXPECTED TO REMAIN
IN PLACE OVER THE GREAT LAKES REGION WITH THE STATIONARY FRONT STILL
IN PLACE JUST TO OUR SOUTH. THE GFS SUGGESTS A WAVE WILL DEVELOP
ALONG THE BOUNDARY THURSDAY NIGHT WITH PRECIP SPREADING NORTH OVER
THE CWA...HOWEVER THE ECMWF AND GEM DO NOT SHARE THIS SOLUTION
KEEPING US UNDER THE INFLUENCE OF THE HIGH. TEMPERATURES IN THE
EXTENDED FORECAST WILL BE CLOSE TO NORMAL. BMD

&&

.AVIATION...

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

* MARGINALLY GUSTY NW WIND REST OF AFTERNOON.

* MODERATELY GUST SW WIND MON MID MORNING ON.

TRS

//DISCUSSION...UPDATED 18Z...

LOCAL WEATHER TO BE DOMINATED BY LARGE HIGH PRESSURE RIDGE...
WITH AXIS CURRENTLY FROM THE WESTERN DAKOTAS SE TO NORTHERN AR...
AS IT SETTLES OVER THE OH VALLEY REGION BY 12Z MON. NW WINDS
QUICKLY DROP OFF WITH SUNSET BECOMING LIGHT EARLY HIS EVENING
BEFORE BACKING TO LIGHT SW AS THE CENTER OF THE ANTICYCLONE MOVES
FROM ITS CURRENT POSITION NW THROUGH SW OF THE LOCAL AREA TO S
AND SE OF THE TERMINALS BY DAWN.

AFTER SUNRISE MON A COUPLE HOURS OF SURFACE HEATING WILL DEEPEN
THE BOUNDARY LAYER ENOUGH TO MIX DOWN SW LOW LEVEL WIND
INCREASING TO AROUND 25KT BY 18Z PER LATEST MODEL OUTPUT. THE
INCREASE IN SW LOW LEVEL FLOW WILL RESULT FROM A TIGHTENING
PRESSURE GRADIENT ACROSS THE REGION AS LOW PRESSURE CURVES SE
AND E TO SOUTHERN JAMES BAY BY MON EVENING...AND ALSO AHEAD OF A
COLD FRONT EXTENDING SOUTHWESTWARD FROM THE LOW AS IT PUSHES SE
INTO THE NORTH PORTION OF THE UPPER MIDWEST DURING MON AFTERNOON.

NO SIGNIFICANT CLOUD COVER THROUGH THE PERIOD. DIURNAL FLAT
CUMULUS OVER SE WI...NE IL AND NW IN WILL CONTINUE TO DECREASE AS
THE AFTERNOON PROGRESSES WITH WARM AIR ADVECTION FROM ABOUT 1.5KM
AGL UP INTO THE MID LEVELS RESULTING IN INCREASINGLY BROADER DEW
POINT DEPRESSIONS. DISSIPATION OF ANY LINGERING FEW CU WILL OCCUR
WITH SUNSET.

TRS

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

* HIGH CONFIDENCE ALL FORECAST ELEMENTS.

TRS

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

MONDAY NIGHT...VFR

TUESDAY...VFR.

WEDNESDAY...VFR.

THURSDAY...CHANCE IF SHRA THURSDAY NIGHT.

FRIDAY...CHANCE SHRA OTHERWISE VFR.

SATURDAY...VFR.

MDB

&&

.MARINE...
335 PM CDT

ACTIVE WEATHER WILL CONTINUE ACROSS LAKE MICHIGAN OVER THE NEXT
SEVERAL DAYS BEFORE A QUIETER PERIOD ARRIVES MID WEEK.

LOW PRESSURE JUST EAST OF HUDSON BAY WILL TRACK TO THE NORTH AS
HIGH PRESSURE BUILDS ACROSS THE MIDDLE MISSISSIPPI VALLEY TONIGHT
AND INTO THE OHIO VALLEY TOMORROW MORNING. A SURFACE TROUGH AND
ASSOCIATED STRONG COLD FRONT WILL DROP SOUTHEASTWARD INTO THE
UPPER MISSISSIPPI VALLEY TOMORROW MORNING...LEADING TO A RAPIDLY
STRENGTHENING PRESSURE GRADIENT OVER THE LAKE. WINDS WILL TURN
SOUTHWESTERLY TONIGHT AND QUICKLY STRENGTHEN DURING THE PRE-DAWN
HOURS. UNSTABLE CONDITIONS WILL REMAIN OVER THE LAKE DESPITE
WARM ADVECTION RIDING ON THE STRENGTHENING SOUTHWESTERLY WINDS
SINCE THE LAKE REMAINS UNUSUALLY WARM. THIS WILL ALLOW VERY STRONG
WINDS TO MIX DOWN TO THE LAKE SURFACE. THE STRONGEST PRESSURE
GRADIENT WILL BE OVER THE FAR NORTH END OF THE LAKE WHERE WINDS
SHOULD ULTIMATELY BE THE STRONGEST. GALES TO 40KT ARE EXPECTED
OVER THE NORTH HALF OF THE LAKE...WITH GUSTS POSSIBLY AS HIGH AS
45 KT OVER THE FAR NORTHERN PORTIONS. GALES SHOULD SPREAD
SOUTHWARD ACROSS THE LAKE DURING THE DAY...WITH LOWER END GALES
LIKELY OVER ALL BUT THE FAR SOUTHERN QUARTER OF THE LAKE. WINDS
WILL GRADUALLY WEAKEN THROUGH MONDAY NIGHT AS THE DEEP LAYER
MIXING WEAKENS AND WINDS WILL DIMINISH FURTHER AS THE COLD FRONT
PUSHES DOWN THE LAKE...WHILE TURNING WINDS NORTHERLY THROUGH LATE
MONDAY NIGHT AND TUESDAY MORNING.

HIGH PRESSURE WILL THEN BUILD ACROSS NORTHERN PLAINS AND UPPER
GREAT LAKES LATER TUESDAY BRINGING A PERIOD OF QUIETER WEATHER TO
THE LAKE.

KREIN

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...FROST ADVISORY...ILZ003-ILZ004-ILZ005-ILZ006-ILZ008-ILZ010-
     ILZ011-ILZ012-ILZ013-ILZ019-ILZ020-ILZ021-ILZ022-ILZ023-
     ILZ032-ILZ033-ILZ039...1 AM MONDAY TO 8 AM MONDAY.

IN...FROST ADVISORY...INZ001-INZ002-INZ010-INZ011-INZ019...1 AM
     MONDAY TO 8 AM MONDAY.

     HIGH RIP CURRENT RISK...INZ001-INZ002 UNTIL 10 AM MONDAY.

LM...GALE WARNING...LMZ261-LMZ362-LMZ364-LMZ563...9 AM MONDAY TO 10
     PM MONDAY.

     GALE WARNING...LMZ366-LMZ565-LMZ567-LMZ669-LMZ868-LMZ870...9 AM
     MONDAY TO 4 AM TUESDAY.

     GALE WARNING...LMZ671-LMZ673-LMZ675-LMZ872-LMZ874-LMZ876...3 PM
     MONDAY TO 4 AM TUESDAY.

     SMALL CRAFT ADVISORY...NEARSHORE WINTHROP HARBOR TO GARY IN UNTIL
     MIDNIGHT MONDAY.

     SMALL CRAFT ADVISORY...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-
     LMZ745...1 PM MONDAY TO 5 AM TUESDAY.

     SMALL CRAFT ADVISORY...NEARSHORE GARY TO MICHIGAN CITY IN UNTIL 10 AM MONDAY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
336 PM CDT SUN SEP 23 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
242045-
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-
336 PM CDT SUN SEP 23 2012 /436 PM EDT SUN SEP 23 2012/

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

.DAY ONE...TONIGHT.

AREAS OF FROST ARE LIKELY LATE TONIGHT ACROSS MOST OF NORTHEAST
ILLINOIS AND NORTHWEST INDIANA...MAINLY FOR AREAS AWAY FROM LAKE
MICHIGAN AND THE CITY OF CHICAGO.

THERE IS A HIGH RISK OF RIP CURRENTS ALONG THE NORTHWEST INDIANA
LAKE SHORE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A HIGH RISK OF RIP CURRENTS ALONG THE NORTHWEST INDIANA
LAKE SHORE THROUGH EARLY MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS ALONG AND SOUTH OF THE
INTERSTATE 80 CORRIDOR TUESDAY AFTERNOON THROUGH WEDNESDAY AND
AGAIN THURSDAY THROUGH THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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

LMZ740>745-242045-
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-
336 PM CDT SUN SEP 23 2012

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

.DAY ONE...TONIGHT.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT FOR THE ILLINOIS AND NORTHWEST INDIANA NEARSHORE
WATERS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT THROUGH MID MONDAY MORNING ALONG THE NORTHWEST
INDIANA NEARSHORE WATERS AND AGAIN FOR THE ILLINOIS AND INDIANA
NEARSHORE WATERS MONDAY AFTERNOON THROUGH MONDAY NIGHT.

&&

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-
870-872-874-876-878-242045-
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-
336 PM CDT SUN SEP 23 2012

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

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF WATERSPOUTS ACROSS THE EASTERN HALF OF THE
LAKE THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

GALE FORCE WINDS ARE LIKELY MONDAY MORNING THROUGH MONDAY
NIGHT OVER THE NORTHERN HALF OF THE LAKE...AND MONDAY AFTERNOON
THROUGH MONDAY NIGHT OVER THE SOUTHERN HALF OF THE LAKE.

&&

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

BMD