Gale Warning 43, NWS Chicago, IL

635 
WHUS73 KLOT 130806
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
306 AM CDT SAT OCT 13 2012

LMZ080-669-671-673-675-777-779-870-872-874-876-878-131615-
/O.CON.KLOT.GL.W.0043.121013T1200Z-121013T2000Z/
/O.NEW.KLOT.GL.A.0027.121014T2100Z-121015T0800Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
306 AM CDT SAT OCT 13 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM
CDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

* WINDS...SOUTH GALES TO 35 KT TODAY...THEN NORTHWEST GALES TO 40
  KT SUNDAY NIGHT.

* SIGNIFICANT WAVES...6 TO 9 FT TODAY AND 8 TO 12 FT SUNDAY NIGHT.

* OCCASIONAL WAVES...UP TO 16 FT TODAY AND UP TO 16 FT SUNDAY NIGHT.

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 GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LMZ261-362-364-366-563-565-567-868-131615-
/O.CON.KLOT.GL.W.0043.121013T1200Z-121013T2000Z/
/O.NEW.KLOT.GL.A.0027.121014T2100Z-121015T1400Z/
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
306 AM CDT SAT OCT 13 2012

...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM
CDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A GALE WATCH...
WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING. 

* WINDS...SOUTH GALES TO 35 KT TODAY AND NORTHWEST GALES TO 40 KT
  SUNDAY NIGHT.

* SIGNIFICANT WAVES...7 TO 10 FT TODAY AND 8 TO 12 FT SUNDAY NIGHT.

* OCCASIONAL WAVES...UP TO 14 FT TODAY AND UP TO 16 FT SUNDAY
  NIGHT.

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 GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LMZ743>745-131615-
/O.EXT.KLOT.SC.Y.0096.000000T0000Z-121015T2100Z/
CALUMET HARBOR TO GARY-GARY TO BURNS HARBOR-
BURNS HARBOR TO MICHIGAN CITY-
306 AM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM CDT MONDAY...

* WINDS...UP TO 30 KT AT TIMES WITH A FEW GUSTS TO NEAR GALE FORCE
  POSSIBLE SUNDAY AFTERNOON.

* SIGNIFICANT WAVES...2 TO 4 FT THROUGH TONIGHT BUILDING TO 6 TO 9
  FT SUNDAY NIGHT.

* OCCASIONAL WAVES...TO 6 FT TODAY...THEN UP TO 13 FT BY SUNDAY
  NIGHT.

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>742-131615-
/O.EXT.KLOT.SC.Y.0096.000000T0000Z-121015T1500Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-
306 AM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT MONDAY...

* WINDS...UP TO 30 KT AT TIMES WITH A FEW GUSTS TO NEAR GALE FORCE
  POSSIBLE SUNDAY AFTERNOON.

* SIGNIFICANT WAVES...3 TO 7 FT.

* OCCASIONAL WAVES...TO 10 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.

&&

$$

IZZI

620 
WHUS73 KLOT 131419
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
919 AM CDT SAT OCT 13 2012

LMZ080-669-671-673-675-777-779-870-872-874-876-878-132230-
/O.CON.KLOT.GL.W.0043.000000T0000Z-121013T2000Z/
/O.CON.KLOT.GL.A.0027.121014T2100Z-121015T0800Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
919 AM CDT SAT OCT 13 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
LATE SUNDAY NIGHT...

* WINDS...SOUTH GALES TO 35 KT TODAY...THEN NORTHWEST GALES TO
40 KT SUNDAY NIGHT.

* SIGNIFICANT WAVES...6 TO 9 FT TODAY AND 8 TO 12 FT SUNDAY
NIGHT.

* OCCASIONAL WAVES...UP TO 13 FT TODAY AND UP TO 16 FT SUNDAY
NIGHT.

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 GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LMZ261-362-364-366-563-565-567-868-132230-
/O.CON.KLOT.GL.W.0043.000000T0000Z-121013T2000Z/
/O.CON.KLOT.GL.A.0027.121014T2100Z-121015T1400Z/
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
919 AM CDT SAT OCT 13 2012

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

* WINDS...SOUTH GALES TO 35 KT TODAY AND NORTHWEST GALES TO 40 KT
 SUNDAY NIGHT.

* SIGNIFICANT WAVES...7 TO 10 FT TODAY AND 8 TO 12 FT SUNDAY
NIGHT.

* OCCASIONAL WAVES...UP TO 14 FT TODAY AND UP TO 16 FT SUNDAY  
NIGHT.

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 GALE WATCH IS ISSUED WHEN THE RISK OF GALE FORCE WINDS OF 34 TO
47 KNOTS HAS SIGNIFICANTLY INCREASED...BUT THE SPECIFIC TIMING
AND/OR LOCATION IS STILL UNCERTAIN. IT IS INTENDED TO PROVIDE
ADDITIONAL LEAD TIME FOR MARINERS WHO MAY WISH TO CONSIDER
ALTERING THEIR PLANS.

&&

$$

LMZ743>745-132230-
/O.CON.KLOT.SC.Y.0096.000000T0000Z-121015T2100Z/
CALUMET HARBOR TO GARY-GARY TO BURNS HARBOR-
BURNS HARBOR TO MICHIGAN CITY-
919 AM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT MONDAY...

* WINDS...UP TO 30 KT AT TIMES WITH A FEW GUSTS TO NEAR GALE FORCE
  POSSIBLE SUNDAY AFTERNOON.

* SIGNIFICANT WAVES...2 TO 4 FT THROUGH TONIGHT BUILDING TO 6 TO 9
  FT SUNDAY NIGHT.

* OCCASIONAL WAVES...TO 6 FT TODAY...THEN UP TO 13 FT BY SUNDAY
  NIGHT. 

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>742-132230-
/O.CON.KLOT.SC.Y.0096.000000T0000Z-121015T1500Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-
919 AM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
MONDAY...

* WINDS...UP TO 30 KT AT TIMES WITH A FEW GUSTS TO NEAR GALE FORCE
  POSSIBLE SUNDAY AFTERNOON.

* SIGNIFICANT WAVES...3 TO 7 FT.

* OCCASIONAL WAVES...TO 10 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

465 
WHUS73 KLOT 132008
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
308 PM CDT SAT OCT 13 2012

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140415-
/O.CAN.KLOT.GL.W.0043.000000T0000Z-121013T2000Z/
/O.UPG.KLOT.GL.A.0027.121014T2100Z-121015T0800Z/
/O.NEW.KLOT.GL.W.0044.121014T2100Z-121015T0800Z/
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
308 PM CDT SAT OCT 13 2012

...GALE WARNING IN EFFECT FROM 4 PM SUNDAY TO 3 AM CDT MONDAY...
...GALE WARNING IS CANCELLED...

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

* WINDS...NORTHWEST GALES TO 40 KT. A FEW GALE FORCE GUSTS TO 45
  KT ARE POSSIBLE.

* SIGNIFICANT WAVES...10 TO 14 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.

&&

$$

LMZ261-362-364-366-563-565-567-868-140415-
/O.CAN.KLOT.GL.W.0043.000000T0000Z-121013T2000Z/
/O.UPG.KLOT.GL.A.0027.121014T2100Z-121015T1400Z/
/O.NEW.KLOT.GL.W.0044.121014T2100Z-121015T1400Z/
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
308 PM CDT SAT OCT 13 2012

...GALE WARNING IN EFFECT FROM 4 PM SUNDAY TO 9 AM CDT MONDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 4 PM SUNDAY TO 9 AM CDT MONDAY.

* WINDS...NORTHWEST GALES TO 40 KT.

* SIGNIFICANT WAVES...8 TO 11 FT.

* OCCASIONAL WAVES...UP TO 15 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.

&&

$$

LMZ743>745-140415-
/O.EXT.KLOT.SC.Y.0096.000000T0000Z-121014T1600Z/
/O.NEW.KLOT.GL.W.0044.121014T1600Z-121015T0800Z/
CALUMET HARBOR TO GARY-GARY TO BURNS HARBOR-
BURNS HARBOR TO MICHIGAN CITY-
308 PM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM CDT SUNDAY...
...GALE WARNING IN EFFECT FROM 11 AM SUNDAY TO 3 AM CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 11 AM SUNDAY TO 3 AM CDT
MONDAY. 

* WINDS...SOUTH 20 TO 25 KT TONIGHT BECOMING SOUTHWEST GALES TO 40
  KT SUNDAY AFTERNOON...THEN WEST SUNDAY NIGHT.

* SIGNIFICANT WAVES...2 TO 4 FT THROUGH TONIGHT BUILDING TO 6 TO 9
  FT SUNDAY NIGHT.

* OCCASIONAL WAVES...TO 6 FT TODAY...THEN UP TO 13 FT BY SUNDAY
  NIGHT.

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.

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.

&&

$$

LMZ742-140415-
/O.EXT.KLOT.SC.Y.0096.000000T0000Z-121014T1600Z/
/O.NEW.KLOT.GL.W.0044.121014T1600Z-121015T0800Z/
NORTHERLY ISLAND TO CALUMET HARBOR-
308 PM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM CDT SUNDAY...
...GALE WARNING IN EFFECT FROM 11 AM SUNDAY TO 3 AM CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 11 AM SUNDAY TO 3 AM CDT
MONDAY. 

* WINDS...SOUTH 20 TO 25 KT TONIGHT BECOMING SOUTHWEST GALES TO 40
  KT SUNDAY AFTERNOON...THEN WEST SUNDAY NIGHT.

* SIGNIFICANT WAVES...2 TO 4 FT THROUGH TONIGHT BUILDING TO 6 TO 9
  FT SUNDAY NIGHT.

* OCCASIONAL WAVES...TO 6 FT TODAY...THEN UP TO 13 FT BY SUNDAY
  NIGHT.

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.

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.

&&

$$

LMZ740-741-140415-
/O.CON.KLOT.SC.Y.0096.000000T0000Z-121015T1500Z/
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
308 PM CDT SAT OCT 13 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
MONDAY...

* WINDS...UP TO 30 KT AT TIMES WITH A FEW GUSTS TO NEAR GALE FORCE
  POSSIBLE SUNDAY AFTERNOON.

* SIGNIFICANT WAVES...3 TO 6 FT.

* OCCASIONAL WAVES...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

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
720 PM CDT FRI OCT 12 2012

.DISCUSSION...
259 PM CDT

FOCUS TODAY IS ON A STRONG FALL SYSTEM EXPECTED TO IMPACT THE REGION
THIS WEEKEND BRINGING STRONG WINDS...HEAVY RAIN AND THUNDERSTORMS...
AND THE POTENTIAL FOR SEVERE WEATHER.

HIGH PRESSURE IS CENTERED OVER THE WESTERN GREAT LAKES REGION
PROVIDING FAIR CONDITIONS THIS AFTERNOON. MEANWHILE...A CLOSED UPPER
LOW CONTINUES TO SPIN OVER SOUTHERN NEVADA WITH ONGOING CONVECTIVE
ACTIVITY OVER THE FOUR CORNERS REGION. THIS LOW WILL BE THE MAIN
PLAYER FOR US THIS WEEKEND AS IT EVENTUALLY GETS CAUGHT UP IN STRONG
BELT OF WESTERLIES AND MOVES ACROSS THE MIDWEST.

UNFORTUNATELY...MODEL GUIDANCE IS STRUGGLING TO HANDLE THIS UPPER
LOW AND RESULTANT SURFACE FIELD. 12Z NAM/GFS GUIDANCE CAME IN WITH A
WEAKER LESS ORGANIZED SURFACE LOW WITH A SLIGHTLY MORE SOUTHERLY
TRACK FOR THE UPPER LEVEL WAVE...AND SUGGESTS THE MORE SIGNIFICANT
DEEPENING OF THE SURFACE LOW WILL BE OFF TO OUR EAST. NUMEROUS
MODELS CONTINUE TO SUGGEST A SLOWER SYSTEM THAN WAS ORIGINALLY
THOUGHT...MEANING WE NOW HAVE TO TAKE A LOOK AT A SEVERE THREAT
RAMPING UP AGAIN OVER EASTERN PORTIONS OF OUR AREA DURING THE DAY
SUNDAY. GIVEN THE CHANGES IN THE 12Z GUIDANCE AS COMPARED TO THE
SOMEWHAT AGREEABLE 00/06Z GUIDANCE AND DECENT ENSEMBLE CLUSTERING
//NOT INCLUDING THE NAM WHICH WAS AN OUTLIER//...AM HESITANT TO MAKE
BIG CHANGES TO THE GOING FORECAST.

TONIGHT THROUGH MIDDAY SATURDAY...
H85 HIGH PRESSURE IS CENTERED JUST EAST OF THE LOWER MISSISSIPPI
VALLEY TODAY BUT WILL BEGIN TO DRIFT EAST TONIGHT AS THE
AFOREMENTIONED UPPER LOW BEGINS TO TREK EAST ACROSS THE CENTRAL
ROCKIES. AN INCREASE IN H85 WINDS TO AROUND 50 KT OVER THE PLAINS
WILL RESULT IN AN INFLUX OF GULF MOISTURE WITH PWAT VALUES
INCREASING TO AROUND 1.5 INCHES IN THE PREDAWN HOURS ACROSS NORTHERN
ILLINOIS. BROAD BUT DEEP AND PERSISTENT ISENTROPIC ASCENT AND
MOISTURE TRANSPORT WILL ALLOW SHOWERS AND THUNDERSTORMS TO INCREASE
IN COVERAGE LATE TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. THE
AREA OF MORE FAVORABLE FORCING/ASCENT WILL GRADUALLY LIFT TO OUR
NORTH ALLOWING PRECIP TO END FOR A WHILE SOUTH OF INTERSTATE 80.

SATURDAY EVENING THROUGH SUNDAY...
FOCUS TURNS BACK TO THE WEST SATURDAY EVENING AS THE SURFACE LOW
BEGINS TO DEEPEN ACROSS THE UPPER MIDWEST IN RESPONSE TO THE STRONG
SLIGHTLY NEGATIVELY TILTED UPPER WAVE MOVING ACROSS THE MID MISSOURI
VALLEY. COUPLING OF THE JET STREAM MAY ALSO ENHANCE BROAD SCALE LIFT
ACROSS THE REGION. THE LOW LEVEL JET WILL INTENSIFY AGAIN JUST TO
OUR WEST SATURDAY NIGHT CONTINUING TO PUMP RICH THETA-E AIR INTO THE
REGION. THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND JUST AHEAD
OF THE SURFACE COLD FRONT AND SHOULD ORGANIZE INTO A SQUALL LINE.
INSTABILITY...WHILE MODERATELY STRONG DURING THE DAY SATURDAY...WILL
BEGIN TO WANE ALONG THE FRONT SATURDAY EVENING AND OVERNIGHT.
DESPITE THE LOW CAPE ENVIRONMENT...STRONG 0-6KM SHEAR AROUND 60KT
COUPLED WITH THE VERY DYNAMIC SYNOPTIC SETUP WILL HELP MAINTAIN THE
THUNDERSTORM THREAT THROUGH THE NIGHT WITH THE POTENTIAL FOR SOME OF
THE STRONGER WINDS ALOFT TO STILL REACH THE SURFACE. PERIODS OF
HEAVY RAIN ARE ALSO POSSIBLE AS SHOWERS ARE EXPECTED TO BE EFFICIENT
RAINFALL PRODUCERS THANKS TO THE DEEP MOISTURE. GIVEN ANTECEDENT
SOIL CONDITIONS WHICH MAY FAVOR MORE RAPID RUNOFF...WILL HAVE TO
MONITOR FOR A LOCALIZED FLOODING THREAT SATURDAY NIGHT INTO SUNDAY.

SECONDARY CONCERN FOR SATURDAY WILL BE THE POTENTIAL FOR STRONG
SOUTHWEST WINDS TO DEVELOP. AS MENTIONED BEFORE...12Z SUITE OF
GUIDANCE TRENDED WITH A WEAKER LOW PRESSURE SYSTEM...RESULTING IN
WEAKER WINDS. PREVIOUS GUIDANCE HOWEVER WAS SUGGESTING POTENTIAL FOR
ADVISORY CRITERIA WINDS...AT LEAST FOR A SHORT PERIOD AHEAD OF THE
FRONT SATURDAY AFTERNOON. BEHIND THE FRONT...PREVIOUS GUIDANCE WAS
SUGGESTING UPWARDS OF 12MB/6HR PRESSURE RISES IN ADDITION TO THE
TIGHT GRADIENT MAINLY ACROSS THE FAR NORTHERN PORTIONS OF THE CWA
LEADING TO STRONG WINDS. WILL HAVE TO MONITOR MODEL TRENDS FOR MORE
CONFIDENCE IN A SOLUTION...BUT FOR NOW FORECAST CALLS FOR WIND GUSTS
OF 30 TO 35 MPH SATURDAY EVENING.

ON SUNDAY...INSTABILITY IS PROGGED TO INCREASE AGAIN AHEAD OF THE
FRONT WHICH MAY STILL BE OVER OUR FORECAST AREA. THIS COULD LEAD TO
A RE-INTENSIFICATION OF LINGERING ACTIVITY ALONG THE FRONT AND AN
INCREASE IN THE SEVERE WEATHER THREAT MAINLY ACROSS OUR FAR EASTERN
AND SOUTHEASTERN COUNTIES. BEHIND THE FRONT...DRY SLOT MAY ALLOW FOR
A BREAK IN THE PRECIP FOR A WHILE BEFORE THE DEFORMATION ZONE BEGINS
TO MOVE ACROSS THE AREA INCREASING THE CHANCE FOR PRECIP ONCE AGAIN.

MONDAY...
RIDGING WILL BUILD IN FROM THE WEST MONDAY ALLOWING WINDS TO
DIMINISH AND SKIES TO CLEAR. THERE MAY BE POST FRONTAL LAKE EFFECT
SHOWERS DEVELOPING...BUT IMPACTS SHOULD BE OVER THE INDIANA/MICHIGAN
SHORES. BMD

REST OF NEXT WEEK...
A FAIRLY ACTIVE NORTHERN STREAM REMAINS FORECAST ACROSS THE
U.S./CANADIAN BORDER...AND HEMISPHERIC WATER VAPOR IMAGERY ALREADY
SHOWS SUCH A WAVE TRAIN ACROSS THE NORTHERN PACIFIC. WITH STRONG
LOWS EXPECTED...TEMPERATURE CONFIDENCE IS BELOW NORMAL FROM
WEDNESDAY ONWARD. TUESDAY THOUGH CONTINUES TO LOOK MILD AND AS
MENTIONED IN PREV DISCUSSION READINGS AREAWIDE INTO THE 70S ARE
POSSIBLE. THE SYSTEM ASSOCIATED WITH THIS WARM-UP IS ANTICIPATED TO
PASS IN THE MIDDLE OF NEXT WEEK...BUT STILL CONSIDERABLE MODEL
DISAGREEMENT WITH REGARD TO PLACEMENT AND TIMING. UNCERTAINTY IS
EVEN HIGHER FOR A LATE WEEK SYSTEM ADVERTISED...ESPECIALLY BY THE
12Z EC. CONVECTIVE POTENTIAL MAY EXIST WITH BOTH SYSTEMS GIVEN THE
LOWS CENTERED TO THE NORTH AND A POSSIBLE OPEN GULF. MTF

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 00Z...

* EAST-SOUTHEAST WINDS TURNING SOUTHEAST THIS EVENING THEN SOUTH
  OVERNIGHT. GUSTS INCREASING TOWARD DAYBREAK AND CONTINUING
  THROUGH MIDDAY.

* POSSIBLE LOW LEVEL WIND SHEAR LATE TONIGHT AS LOW LEVEL WINDS
  INCREASE MARKEDLY.

* CIGS LOWERING LATE TONIGHT THROUGH DAYBREAK SATURDAY WITH MVFR
  EXPECTED...IFR A GOOD POSSIBILITY BY LATE MORNING OR EARLY
  AFTERNOON. CIGS MAY IMPROVE LATE AFTERNOON.

* RAIN/SHOWERS APPROACH AS EARLY AS 09Z WITH MORE WIDESPREAD
  COVERAGE EXPECTED AFTER DAYBREAK CONTINUING THROUGH EARLY/MID
  AFTERNOON.

* GOOD POTENTIAL FOR EMBEDDED TSRA FROM MID MORNING...IF NOT A
  LITTLE EARLIER...THROUGH EARLY AFTERNOON.

* OVERALL CONDITIONS MAY IMPROVE LATE IN THE DAY BUT ADDITIONAL
  TSRA ACTIVITY IS POSSIBLE LATE AFTERNOON/EVENING...WITH BETTER
  CHANCE FOR ORGANIZED TSRA FROM LATE EVENING ON BUT MORE LIKELY
  OVERNIGHT INTO SUNDAY.

MDB

//DISCUSSION...UPDATED 00Z...

QUITE A COMPLEX AND ACTIVE PERIOD WILL BE GETTING UNDERWAY
TONIGHT AS SURFACE LOW PRESSURE DEVELOPS ACROSS THE HIGH PLAINS AS
A STRONG UPPER LEVEL LOW CROSSES THE FOUR CORNERS REGION
TONIGHT....WITH THESE FEATURES CROSSING THE AREA EARLY SUNDAY.

WINDS...CURRENT EAST TO SOUTHEAST FLOW WILL TURN SOUTHERLY
TONIGHT AND WINDS JUST ABOVE THE SURFACE WILL RAMP UP TO 40-45 KT
BY ABOUT 1200 FT AGL. THIS WILL LEAD TO A THREAT FOR LOW LEVEL
WIND SHEAR OVERNIGHT THOUGH SURFACE WINDS DO LOOK TO INCREASE
PRIOR TO DAYBREAK WHICH MAY MITIGATE THE MAGNITUDE OF THE SPEED
CHANGE FROM THE SURFACE UPWARD. SOUTH TO SOUTHWEST WINDS WILL
INCREASE FURTHER AND BECOME GUSTY AFTER DAYBREAK WITH GUSTS TO 25
KT EXPECTED WITH HIGHER GUSTS POSSIBLE. GUSTS SHOULD CONTINUE
THROUGH MUCH OF THE DAY BUT MAY EASE OFF A BIT LATE IN THE
AFTERNOON.

PRECIP...ATTENTION TURNS TO ONGOING SHRA/TSRA ACTIVITY ACROSS
SOUTHWESTERN IOWA WHICH CONTINUES TO MARCH EASTWARD. RAIN/SHOWERS
WILL SPREAD IN FROM THE WEST LATE TONIGHT WITH THUNDER A GOOD
POSSIBILITY TOWARD RFD BY DAYBREAK IF NOT EARLIER...WITH THE
THUNDER THREAT SPREADING EASTWARD THROUGH THE MORNING. PRECIP
LOOKS TO BECOME MORE WIDESPREAD AND INTENSE THROUGH THE MORNING AS
IT WORKS EASTWARD. ACTIVITY LOOKS TO BECOME LESS WIDESPREAD DURING
THE MID OR LATE AFTERNOON AS AN ASSOCIATED WARM FRONT LIFTS JUST
NORTH OF THE AREA...BUT SCATTERED ACTIVITY MAY CONTINUE. BETTER
CHANCES ARRIVE DURING LATE SATURDAY EVENING OR EVEN EARLY SUNDAY
MORNING AS THE SURFACE LOW APPROACHES FROM THE WEST LEADING TO A
ROUND OF POTENTIALLY STRONG THUNDERSTORMS.

CIGS/VSBY...VFR CONDS WILL CONTINUE INTO THE OVERNIGHT HOURS BUT
CLOUDS WILL THICKEN AND BASES WILL LOWER OVERNIGHT. EXPECT THAT
MVFR CIGS WILL ARRIVE TOWARD DAYBREAK FROM WEST TO EAST...IF NOT
PRIOR TO DAYBREAK AT RFD. A PERIOD OF IFR CIGS APPEARS LIKELY BY
MID MORNING TOWARD RFD AND MIDDAY ACROSS THE CHICAGO AREA
TERMINALS BUT IT IS NOT CLEAR HOW LONG THIS WILL LAST. THERE IS
SUPPORT FOR IMPROVING CIGS DURING THE MID/LATE AFTERNOON AND
EVENING HOURS BUT THIS MAY ONLY BE TO MVFR. VISIBILITY LOOKS TO BE
REDUCED IN MODERATE TO OCCASIONALLY HEAVY RAINFALL WITH 3-5 SM
LIKELY WITH OCCASIONAL 1-2 SM VSBY POSSIBLE UNTIL PRECIP BECOMES
LESS ORGANIZED DURING THE MID/LATE AFTERNOON. THE VERY MOIST
ATMOSPHERE MAY KEEP 4-6SM VSBY IN PLACE THROUGH THE EVENING EVEN
WITHOUT PRECIP OCCURRING.

MDB

//ORD AND MDW CONFIDENCE...UPDATED 00Z...

* HIGH CONFIDENCE IN WIND TRENDS THROUGH SATURDAY MORNING...LOW-
  MEDIUM CONFIDENCE IN GUST POTENTIAL FROM LATE MORNING THROUGH
  SATURDAY EVENING.

* MEDIUM CONFIDENCE IN LOW LEVEL WIND SHEAR POTENTIAL LATE...BUT
  DEVELOPING SURFACE GUSTS MAY MITIGATE THE IMPACT.

* HIGH CONFIDENCE IN CIGS LOWERING TO MVFR BUT MEDIUM CONFIDENCE
  IN EXACT TIMING. MEDIUM-HIGH CONFIDENCE IN IFR OCCURRING FOR AT
  LEAST A SHORT PERIOD BUT LOW-MEDIUM CONFIDENCE IN TIMING/DURATION.

* LOW-MEDIUM CONFIDENCE IN SHRA/RA POTENTIAL PRIOR TO DAYBREAK BUT
  HIGH CONFIDENCE IN PERIODS OF RAIN/SHRA AFTER DAYBREAK THROUGH
  MIDDAY...LOW CONFIDENCE IN COVERAGE OF PRECIP FROM MID AFTERNOON
  ONWARD.

* MEDIUM-HIGH CONFIDENCE IN TSRA OCCURRING AT TIMES BUT LOW-MEDIUM
  CONFIDENCE IN HOW PREVALENT IT WILL BE...COULD BE MORE ISOLATED
  IN COVERAGE/DURATION DURING THE MORNING.

* MEDIUM CONFIDENCE IN AN IMPROVING TREND LATE IN THE DAY SATURDAY
  BUT LOW CONFIDENCE IN DETAILS. BETTER CONFIDENCE THAT MORE
  WIDESPREAD/ORGANIZED SHRA/TSRA WILL BE A GREATER THREAT LATE
  SATURDAY EVENING AND/OR EARLY SUNDAY AS OPPOSED TO DURING THE
  LATE AFTERNOON/EARLY EVENING.

MDB

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

SUNDAY...TSRA LIKELY EARLY WITH DECREASING CHANCES FROM AFTERNOON
ON. MVFR CIGS/VSBY LIKELY EARLY WITH IFR POSSIBLE.

MONDAY...VFR. WX NIL.

TUESDAY...VFR...WITH CHANCE SHRA TUESDAY NIGHT.

WEDNESDAY...CHANCE SHRA WITH MVFR CIGS/VSBY POSSIBLE.

THURSDAY...SLIGHT CHANCE SHRA...VFR.

MDB

&&

.MARINE...
244 PM CDT

THE WEATHER PATTERN WILL REMAIN VERY ACTIVE ACROSS THE GREAT LAKES
REGION THIS WEEKEND. A SIGNIFICANT STORM SYSTEM IS EXPECTED TO MOVE
ACROSS THE LAKE ON SUNDAY. AHEAD OF THIS LOW WINDS WILL TURN
SOUTHERLY AND INCREASE NEAR 30 KT TONIGHT...AND POSSIBLY TO SOME 35
KT GALES ON SATURDAY. IT APPEARS THAT THERE WILL BE ABOUT A 9 HOUR
WINDOW IN WHICH GALE FORCE WINDS ARE POSSIBLE ON SATURDAY...BEFORE
STABLE CONDITIONS SET UP AND LIMIT THE WINDS TO 30 KT LATE IN THE
DAY.

ONCE THE LOW MOVES ACROSS THE CENTRAL PORTION OF THE LAKE LATE
SATURDAY NIGHT INTO SUNDAY MORNING THE WINDS WILL BECOME VARIABLE
ACROSS THE LAKE...WITH STRONG NORTHERLY WINDS DEVELOPING ACROSS THE
FAR NORTH AND STRONG SOUTHWESTERLY WINDS CONTINUING ACROSS THE FAR
SOUTHERN SECTION OF THE LAKE. UNCERTAINTY REMAINS HIGH AS TO THE
BEHAVIOR OF THIS LOW AS IT MOVES ACROSS THE LAKE ON SUNDAY.
HOWEVER...IT APPEARS THAT STRONG WEST TO NORTHWESTERLY WINDS MAY
DEVELOP ON SUNDAY INTO SUNDAY NIGHT AS THE LOW MOVES EAST OF THE
LAKE. STRONG PRESSURE RISES AND STRONG COLD AIR ADVECTION COULD
RESULT IN GALES OF 35 TO 40 KT....DEPENDING ON THE EXACT BEHAVIOR OF
THIS LOW.

THIS SYSTEM WILL ALSO RESULT IN PERIODS OF SHOWERS AND THUNDERSTORMS
DURING THE DAY ON SATURDAY. THERE COULD EVEN BE SOME STRONG TO
SEVERE THUNDERSTORMS SATURDAY NIGHT INTO SUNDAY.

KJB

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...SMALL CRAFT ADVISORY...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-
     LMZ745...1 AM SATURDAY TO 10 AM SUNDAY.

     GALE WATCH...LMZ080-LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ777-LMZ779-LMZ868-
     LMZ870-LMZ872-LMZ874-LMZ876-LMZ878...7 AM SATURDAY TO 3 PM
     SATURDAY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
328 PM CDT FRI OCT 12 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
132030-
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-
328 PM CDT FRI OCT 12 2012 /428 PM EDT FRI OCT 12 2012/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  CHANCE OF THUNDERSTORMS...SOME CAPABLE OF PRODUCING:
    HEAVY RAIN.
    CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  THUNDERSTORM CHANCES WILL INCREASE AFTER MIDNIGHT TONIGHT...
  ESPECIALLY OVER NORTH CENTRAL ILLINOIS.

  DISCUSSION:

  A WARM FRONT WILL LIFT NORTH ACROSS THE AREA TONIGHT WITH
  SHOWERS AND THUNDERSTORMS OVERSPREADING THE REGION. THE BEST
  FORCING AND HEAVIEST RAINS ARE EXPECTED TO MOVE NEAR THE
  ILLINOIS AND WISCONSIN STATE LINE. NO SEVERE WEATHER IS EXPECTED
  WITH THESE STORMS...BUT THERE MAY BE SOME LOCALIZED FLOODING.

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

  PERIODIC THUNDERSTORM CHANCES WILL CONTINUE SATURDAY AND
  SATURDAY NIGHT. THE PRIMARY THREAT FROM THESE STORMS LOOKS TO
  BE HEAVY RAINFALL WHICH COULD RESULT IN LOCALLY EXCESSIVE
  RAINFALL TOTALS AND POSSIBLE FLOODING.

  A FAST MOVING LINE OF SHOWERS AND POSSIBLE THUNDERSTORMS IS
  THEN EXPECTED TO ACCOMPANY A COLD FRONT AS IT MOVES ACROSS THE
  AREA VERY LATE SATURDAY NIGHT INTO SUNDAY MORNING. SOME LIMITED
  POTENTIAL EXISTS FOR STRONG AND POSSIBLY DAMAGING WINDS WITH
  THIS LINE. AS THIS LINE MOVES INTO EAST CENTRAL ILLINOIS AND
  NORTHWEST INDIANA LATE SUNDAY MORNING...THERE MAY BE SOME
  REINTENSIFICATION WITH AN INCREASE IN THE THREAT FOR SEVERE
  WINDS.

  STRONG SOUTHWEST WINDS COULD GUST TO NEAR 40 MPH FOR A TIME
  SUNDAY AFTERNOON AHEAD OF THE COLD FRONT IN EAST CENTRAL
  ILLINOIS AND NORTHWEST INDIANA. THERE MAY ALSO BE A BRIEF PERIOD
  OF STRONG WEST TO NORTHWEST WINDS JUST BEHIND THE COLD FRONT
  ACROSS NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT...HOWEVER
REPORTS OF HEAVY RAINFALL WILL BE APPRECIATED.

&&

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

LMZ740>745-132030-
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-
328 PM CDT FRI OCT 12 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG WINDS AND HIGH WAVES HAZARDOUS TO SMALL CRAFT WILL DEVELOP
TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS IN THE PREDAWN HOURS.

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

STRONG WINDS AND HIGH WAVES WILL RESULT IN HAZARDOUS CONDITIONS
FOR SMALL CRAFT THROUGH THE WEEKEND.

OCCASIONAL THUNDERSTORMS ARE EXPECTED SATURDAY INTO SATURDAY
EVENING. A FAST MOVING LINE OF SHOWERS AND POSSIBLE THUNDERSTORMS
COULD PRODUCE WINDS OVER 35 KNOTS EARLY SUNDAY.

&&

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-
870-872-874-876-878-132030-
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-
328 PM CDT FRI OCT 12 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS IN THE PREDAWN HOURS.

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

PERIODS OF THUNDERSTORMS ARE EXPECTED SATURDAY THROUGH SUNDAY
MORNING.

GALE FORCE WINDS ARE POSSIBLE DURING THE DAY SATURDAY ACROSS LAKE
MICHIGAN...AND LIKELY ON SUNDAY.

&&

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

BMD