Gale Warning 71, NWS Chicago, IL

416 
WHUS73 KLOT 050259
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
959 PM CDT SUN SEP 4 2011

LMZ740>745-051100-
/O.CAN.KLOT.SC.Y.0072.000000T0000Z-110905T0300Z/
/O.EXT.KLOT.GL.W.0071.110905T0259Z-110905T1500Z/
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-
959 PM CDT SUN SEP 4 2011

...GALE WARNING NOW IN EFFECT UNTIL 10 AM CDT MONDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS REPLACED THE SMALL
CRAFT ADVISORY WITH A GALE WARNING. THE GALE WARNING IS NOW IN EFFECT
UNTIL 10 AM CDT MONDAY.

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 10 AM CDT MONDAY.

* 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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-051100-
/O.EXT.KLOT.GL.W.0071.110905T0259Z-110905T1500Z/
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-
959 PM CDT SUN SEP 4 2011

...GALE WARNING NOW IN EFFECT UNTIL 10 AM CDT MONDAY...

THE GALE WARNING IS NOW IN EFFECT UNTIL 10 AM CDT MONDAY. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 10 AM CDT MONDAY.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 40 
  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.

&&

$$

SHEA

341 
WHUS73 KLOT 050820
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
320 AM CDT MON SEP 5 2011

LMZ080-669-671-673-675-740>745-777-779-870-872-874-876-878-051500-
/O.CON.KLOT.GL.W.0071.000000T0000Z-110905T1500Z/
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-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-
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-
320 AM CDT MON SEP 5 2011

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING...

A GALE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING. 

* EXPECT SUSTAINED GALE FORCE WINDS OR FREQUENT GALE FORCE GUSTS 
  UNTIL 10 AM CDT THIS MORNING.

* DURING THE GALE WARNING...THE STRONGEST WINDS WILL BE UP TO 35 
  KT FROM THE NORTH. THE HIGHEST SIGNIFICANT WAVES WILL BE UP 
  TO 16 FT. THERE WILL BE OCCASIONAL WAVES UP TO 22 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.

&&

$$

SHEA

456 
WHUS73 KLOT 051501
MWWLOT

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1001 AM CDT MON SEP 5 2011

LMZ740>745-052315-
/O.CAN.KLOT.GL.W.0071.000000T0000Z-110905T1500Z/
/O.NEW.KLOT.SC.Y.0073.110905T1501Z-110907T1100Z/
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-
1001 AM CDT MON SEP 5 2011

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CDT WEDNESDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM CDT WEDNESDAY. 

* EXPECT HAZARDOUS CONDITIONS FOR SMALL CRAFT UNTIL 6 AM CDT 
  WEDNESDAY.

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

THE GALE WARNING HAS BEEN CANCELLED. 

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.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-051615-
/O.CAN.KLOT.GL.W.0071.000000T0000Z-110905T1500Z/
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-
1001 AM CDT MON SEP 5 2011

...GALE WARNING IS CANCELLED...

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

$$

ALLSOPP

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
326 PM CDT SUN SEP 4 2011

.DISCUSSION...
326 PM CDT

UNSEASONABLY COOL WEATHER TO START THE WEEK WITH SOME LAKE EFFECT
RAIN SHOWERS MAINLY ACROSS NORTHERN INDIANA...THEN A GRADUAL TREND
BACK TO WARMER AND MORE HUMID CONDITIONS BY THE WEEKEND IF THE
REMNANTS OF LEE DO IN FACT MOVE TOWARD THE AREA.

THE FRONTAL ZONE THAT SWUNG THROUGH THE AREA LATE YESTERDAY HAS
MOVED INTO THE OHIO VALLEY...WHILE THE UPPER TROUGH AND VORT MAX DIG
ACROSS THE REGION THIS EVENING THROUGH EARLY TOMORROW.  BEHIND THE
FRONT...MUCH COOLER TEMPERATURES ALOFT WILL PRODUCE VERTICAL
TEMPERATURE PROFILES SUPPORTIVE OF LAKE EFFECT RAIN SHOWERS BEGINNING
TONIGHT AND CONTINUING TOMORROW.

GIVEN LAKE INDUCED CAPE VALUES POTENTIALLY EXCEEDING 1000 J/KG WITH
70F/21C WATER AND 850MB TEMPS DROPPING TO AROUND 2-3C...THE IDEA OF
ISOLATED THUNDERSTORMS IS ALSO WORTH CONSIDERING.  THIS IDEA IS
FURTHER SUPPORTED BY THE FAVORABLE UPPER LEVEL DYNAMICS THAT WOULD
HELP TO ENCOURAGE ANY CONVECTION THAT DOES DEVELOP.  THE MAIN
LIMITING FACTOR WOULD SEEM TO BE THE 20-30KT LOW LEVEL WINDS
EXPECTED IN THE TIGHT SYNOPTIC SCALE PRESSURE GRADIENT...WHICH COULD
DISRUPT THE VERY FAVORABLE MESOSCALE THERMODYNAMICS.  CHANCE POPS IN
THE GRIDS SOUTH OF THE LAKE THUS BROADLY REFLECT THE MOST FAVORED
AREA FOR RAIN SHOWERS TO SET UP TONIGHT AND TOMORROW...AND PROBABLY
CAN BE RAISED TO THE LIKELY CATEGORY IN A MORE LIMITED AREA ONCE THE
SITUATION UNFOLDS A BIT FURTHER.  A MENTION OF THUNDER COULD THEN BE
ADDED LATE IN THE PROCESS IF TRENDS DO APPEAR TO BE HEADING IN THIS
DIRECTION.

WINDS GRADUALLY VEER NORTHEAST MONDAY NIGHT AS SFC HIGH PRESSURE
BUILDS ACROSS THE NORTHERN GREAT LAKES.  LAKE EFFECTS BECOME LESS
PRONOUNCED BY THIS TIME AS THE FETCH LENGTH DECREASES AND
TEMPERATURES BEGIN TO MODERATE SOMEWHAT IN THE SFC-850MB LAYER.

THE SFC HIGH TO OUR NORTH NEVER REALLY MANAGES TO ESTABLISH ITSELF
RIGHT ON TOP OF THE AREA THIS WEEK...BUT INSTEAD REMAINS PARKED JUST
TO OUR NORTH AS A BROAD ELONGATED RIDGE.  NORTH TO NORTHEAST WINDS
THUS WILL PERSIST UNTIL FURTHER NOTICE.  DAYTIME HIGHS DURING THE
FIRST HALF OF THE WEEK WILL REMAIN A BIT BELOW TYPICAL VALUES FOR
EARLY SEPTEMBER...WHILE OVERNIGHT LOWS WILL BE CONSIDERABLY COOLER
THAN NORMAL...ESPECIALLY IN OUTLYING AREAS.  RECORD COLD MAX
TEMPERATURES THIS WEEK ARE IN THE LOWER 60S AND RECORD LOWS ARE
AROUND 40.  HIGHS MONDAY AND LOWS MONDAY NIGHT COULD APPROACH WITHIN
A FEW DEGREES OF THESE VALUES IN SOME LOCATIONS...BUT SHOULD STAY
JUST A BIT WARMER IN BOTH CASES.

WARMER AND MORE HUMID WEATHER MOVES BACK TOWARD THE AREA LATE IN THE
WEEK.  MODELS ARE HARDLY IN GREAT AGREEMENT...BUT THE LATEST
DETERMINISTIC RUNS OF THE GFS AND ECMWF ACTUALLY DO LOOK FAIRLY
SIMILAR AT THE 18Z HOUR ON FRIDAY.  BOTH HAVE AN UPPER LOW SPINNING
WITH THE REMNANTS OF TROPICAL STORM LEE SOMEWHERE NEAR THE MISSOURI
BOOTHEEL...AND BOTH SHOW HURRICANE KATIA SITTING OFF THE COAST OF
THE CAROLINAS.

THIS SOLUTION GENERALLY MATCHES THE LATEST NATIONAL GUIDANCE FROM
HPC/TPC...BUT THE STRENGTH AND POSITION OF THE SFC LOW OVER THE
OH/TN VALLEY FROM THURSDAY INTO THE WEEKEND ARE VERY UNCERTAIN AT
THIS POINT...AS IS THE AMOUNT OF MOISTURE THAT WILL BE REMAINING
WITH LEE.  GFS UNCHARACTERISTICALLY APPEARS TO BE UNDERDOING EXTENT
OF PRECIP RELATIVE TO THE ECMWF...BUT WITH THE BROAD UPPER LOW
BECOMING SOMEWHAT CUT OFF FROM THE NORTHERLY STREAM...IT SEEMS
REASONABLE TO FOLLOW A WETTER SOLUTION AND MAINTAIN AT LEAST SLIGHT
CHANCE POPS ACROSS THE CWA FROM LATE WEEK THROUGH THE END OF THE
FORECAST PERIOD.

LENNING

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 18Z...

* GUSTY NORTHWESTERLY WINDS UNTIL SHORTLY AFTER SUNSET. GUSTS TO
  NEAR 25KT THIS AFTERNOON.

* CHANCE OF CIGS DROPPING TO HIGHER END MVFR THIS AFTERNOON AND EVENING.

* CHANCE OF LAKE EFFECT RAINSHOWERS TOMORROW...ESPECIALLY AT MDW.

KREIN

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

FOLLOWING THE PASSAGE OF A COLD FRONT LAST NIGHT...A SURGE OF
COOLER AIR OVER THE REGION...COMBINED WITH A STRENGTHENING
PRESSURE GRADIENT WILL BRING GUSTY WINDS TO NRN IL/NWRN IN THIS
AFTERNOON AND EVENING. GUSTS OF 20-25KT ARE LIKELY. ALSO...DAYTIME
HEATING AND CYCLONIC CURVATURE ALOFT WILL BRING A BKN STRATOCU
DECK TO THE REGION. BASES SHOULD GENERALLY BE ARND
3500-4000FT...BUT UPSTREAM OBS ARE STILL INDICATING SOME PATCHY
MVFR CIGS...SO BRIEF PERIODS OF HIGHER END MVFR CIGS ARE POSSIBLE
THIS AFTERNOON AND EVENING...THOUGH THIS IS NOT EXPECTED TO BE A
PREVAILING CONDITION. ISOLD -SHRA/SPRINKLES ARE ALSO NOT TOTALLY
OUT OF THE QUESTION THIS AFTERNOON DURG THE PERIOD OF MAX
HEATING...BUT THE POTENTIAL WILL RAPIDLY DECREASE AT SUNSET.

FOR TOMORROW...WINDS WILL DECREASE AT THE IL TERMINALS AS HIGH
PRESSURE BUILDS IN FROM THE NRN PLAINS. HOWEVER...GYY SHOULD BE
UNDER THE INFLUENCE OF PERSISTENT COOL NORTHERLY FLOW...WHICH
SHOULD BRING LAKE EFFECT RAIN SHOWERS AND MVFR CIGS. THERE IS A
CHANCE THAT THE SHOWERS COULD PUSH AS FAR WEST AS MDW IF LOW LVL
WINDS CAN TURN A LITTLE MORE NELY...BUT THE PROBABILITY OF THIS
OCCURRING IS LOW.

KREIN

//ORD AND MDW CONFIDENCE...UPDATED 18Z...

* MEDIUM TO HIGH CONFIDENCE IN THE WIND FORECAST.

* MEDIUM CONFIDENCE IN THE CLOUD COVER/CIG FORECAST.

* LOW TO MEDIUM CONFIDENCE IN THE PCPN FORECAST FOR MDW.

* HIGH CONFIDENCE IN ALL OTHER FORECAST ELEMENTS.

KREIN

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

MONDAY NIGHT THROUGH SATURDAY...VFR.

MDB

&&

.MARINE...
326 PM CDT

GALE POTENTIAL TONIGHT AND MONDAY MORNING...AS WELL AS POSSIBILITY
OF WATERSPOUTS REMAIN THE MAIN FORECAST CONCERNS.

WITH A SFC LOW PULLING AWAY THROUGH SRN QUEBEC AND HIGH PRESSURE
BUILDING OVER THE UPPER MISSISSIPPI VALLEY...THE PRESSURE GRADIENT
OVER LAKE MICHIGAN IS STRENGTHENING WHILE MUCH COOLER AIR IS BEING
DRAWN SOUTHWARD OUT OF CENTRAL CANADA. THE COMBINATION OF THE
STRONG COLD ADVECTION WITH THE STRENGTHENING GRADIENT SHOULD CAUSE
WINDS TO CONTINUE TO STRENGTHENING THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THIS EVENING. WITH THE GRADIENT STRONGEST OVER
THE SOUTHERN PORTIONS OF THE LAKE...EXPECT GALE FORCE WINDS TO BE
CONFINED TO THE SOUTHERN PORTIONS OF THE LAKE...INCLUDING THE
ILLINOIS AND INDIANA NEARSHORE WATERS. THE PERIOD OF OPPORTUNITY
FOR GALE FORCE WINDS SHOULD BE RELATIVELY SHORE...LIKELY ONLY
THROUGH MONDAY MORNING AS THE LARGE SFC HIGH SHOULD PROGRESSIVELY
BUILD EASTWARD OVER THE WESTERN GREAT LAKES REGION. WHILE WINDS
SHOULD BE ON THE DECREASE TOMORROW...A PERSISTENT NORTHERLY FETCH
SHOULD KEEP WAVES PILING UP ONTO THE SOUTHERN SHORES OF THE
LAKE...AND SMALL CRAFT ADVISORY CONDITIONS FOR WAVES IN EXCESS OF
4 FEET WILL LIKELY CONTINUE WELL AFTER THE GALE WARNING EXPIRES.

THE OTHER ISSUE THAT STILL BEARS WATCHING WILL BE THE POSSIBILITY
OF WATER SPOTS. UNSEASONABLY COLD AIR WILL BE FILTERING OVER THE
LAKE THIS EVENING. WITH THE WATER STILL RATHER WARM...THIS WILL
SET UP A VERY UNSTABLE LAYER NEAR THE SURFACE. THIS LOW LEVEL
INSTABILITY WILL BE THE DRIVING FORCE FOR THE POTENTIAL SPOUTS.
THE LIMITING FACTOR...HOWEVER...WILL BE THE GALE FORCE
WINDS...WHICH MAY BE STRONG ENOUGH TO DISRUPT THE LOWER LEVELS
PREVENTING WATERSPOUT FORMATION.

KREIN

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...SMALL CRAFT ADVISORY...NEARSHORE WATERS
     UNTIL 10 PM SUNDAY.

     GALE WARNING...LMZ080-LMZ669-LMZ671-LMZ673-LMZ675-LMZ740-LMZ741-
     LMZ742-LMZ743-LMZ744-LMZ745-LMZ777-LMZ779-LMZ870-LMZ872-
     LMZ874-LMZ876-LMZ878...10 PM SUNDAY TO 10 AM MONDAY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1129 AM CDT SUN SEP 4 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
051630-
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-
1129 AM CDT SUN SEP 4 2011 /1229 PM EDT SUN SEP 4 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

RIP CURRENTS ARE LIKELY TODAY AND TONIGHT ALONG BOTH THE ILLINOIS
AND INDIANA SHORES OF LAKE MICHIGAN.

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

RIP CURRENTS ARE LIKELY MONDAY THROUGH WEDNESDAY MORNING ALONG
BOTH THE ILLINOIS AND INDIANA SHORES OF LAKE MICHIGAN.

.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>745-051630-
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-
1129 AM CDT SUN SEP 4 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT TODAY AND TONIGHT FOR BOTH THE ILLINOIS AND INDIANA
SHORES OF LAKE MICHIGAN.

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

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT MONDAY THROUGH TUESDAY NIGHT FOR BOTH THE ILLINOIS
AND INDIANA SHORES OF LAKE MICHIGAN.

&&

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-
870-872-874-876-878-051630-
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-
1129 AM CDT SUN SEP 4 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

GALE FORCE WINDS WILL BE POSSIBLE ACROSS THE SOUTH HALF OF THE LAKE
TONIGHT...WITH OCCASIONAL GALE FORCE GUSTS ACROSS THE NORTH HALF.

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

GALE FORCE WINDS WILL BE POSSIBLE ACROSS THE SOUTHERN HALF OF THE
LAKE ON MONDAY.

&&

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

LENNING

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
134 PM CDT SUN SEP 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0417 PM     TSTM WND DMG     CHESTERTON              41.60N 87.06W
09/03/2011                   PORTER             IN   PARK/FOREST SRVC

            DELAYED REPORT. 1 LARGE TREE DOWN AT INDIANA DUNES STATE
            PARK. 4 OTHER TREES PARTIALLY KNOCKED OVER INTO OTHER
            TREES.

&&

RC

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
151 PM CDT SUN SEP 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0220 PM     HAIL             HOMER GLEN              41.62N 87.94W
09/03/2011  M1.75 INCH       WILL               IL   TRAINED SPOTTER

            INTERSECTION OF 143RD AND GOLDEN OAK. CORRECTED TIME TO
            RADAR BASED ESTIMATE.

&&

RC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
154 PM CDT SUN SEP 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 AM     RIP CURRENTS     CHESTERTON              41.60N 87.06W
09/04/2011                   PORTER             IN   PARK/FOREST SRVC

            STRONG RIP CURRENTS REPORTED AT INDIANA DUNES STATE
            PARK...WITH WAVE HEIGHTS AT 4 TO 7 FEET. GUARDED SECTION
            OF BEACH IS CLOSED DUE TO STRONG RIP CURRENT ACTIVITY.

&&

RC