Flash Flood Warning 14, NWS Chicago, IL

446 
WGUS73 KLOT 092005
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
305 PM CDT THU JUN 9 2011

ILC031-037-043-063-089-091-093-099-103-141-197-INC073-089-127-092230-
/O.CON.KLOT.FF.W.0014.000000T0000Z-110609T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KANE IL-KANKAKEE IL-KENDALL IL-LA SALLE IL-OGLE IL-WILL IL-GRUNDY IL-
DE KALB IL-DUPAGE IL-LEE IL-PORTER IN-JASPER IN-COOK IL-LAKE IN-
305 PM CDT THU JUN 9 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LAKE...SOUTHERN COOK...
NORTHERN JASPER...PORTER...LEE...DUPAGE...DE KALB...NORTHERN
GRUNDY...WILL...SOUTHERN OGLE...NORTHERN LA SALLE...KENDALL...
NORTHEASTERN KANKAKEE AND SOUTHERN KANE COUNTIES UNTIL 530 PM CDT...

AT 302 PM CDT...FLASH FLOODING CONTINUED ACROSS THE AREA WITH MANY 
ROADS STILL IMPACTED BY HIGH WATER. MANY SMALL STREAMS CONTINUED TO 
RISE RAPIDLY INCLUDING PORTIONS OF BLACKBERRY CREEK...DU PAGE 
RIVER...LITTLE CALUMET RIVER...HART DITCH AND OTHERS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ADDISON...
ALSIP...AURORA...BATAVIA...BERWYN...BLUE ISLAND...BOLINGBROOK...BOONE
GROVE...BROOKFIELD...BURNHAM...BURR RIDGE...CALUMET CITY...CAROL
STREAM...CEDAR LAKE...CHANNAHON...CHATHAM...CHICAGO HEIGHTS...
CICERO...CROWN POINT...DE KALB...DE MOTTE...DIXON...DOLTON...DOWNERS
GROVE...DUNNS BRIDGE...DUPAGE AIRPORT...ELMHURST...FLOSSMOOR...FOREST
PARK AND FRANKFORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS...VIADUCTS AND UNDERPASSES. ADDITIONALLY...
RURAL ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE ALSO SUBJECT TO FLOODING.

MOST FLOOD RELATED DEATHS OCCUR IN VEHICLES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT OR
IN A VEHICLE.

&&

LAT...LON 4198 8787 4186 8769 4163 8752 4153 8693
      4116 8694 4120 8727 4122 8728 4121 8730
      4133 8838 4149 8917 4158 8918 4158 8963
      4192 8963 4193 8969 4199 8969

$$

MORRIS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1105 AM CDT THU JUN 9 2011

.MESOSCALE DISCUSSION...
826 AM CDT

MCS FROM EARLIER THIS MORNING OVER NORTHERN ILLINOIS HAS WEAKENED
AND PUSHED EAST. AN ADDITIONAL MUCH WEAKER COMPLEX DEVELOPED OVER
IOWA AND PRODUCED A LINE OF THUNDERSTORMS THAT QUICKLY WEAKENED AS
IT PUSHED EAST INTO LEE/OGLE COUNTIES...WHICH HAD BEEN WORKED OVER
FROM EARLIER CONVECTION. THE ENVIRONMENT OVER NORTHERN
IL/NORTHWEST IN HAS STABILIZED...AND SHOULD REMAIN THIS WAY
THROUGH THE REMAINDER OF THE MORNING. THIS WILL ALLOW ANY ONGOING
SHOWERS/THUNDERSTORMS TO GRADUALLY DECAY.

FLOODING REMAINS A LARGER CONCERN THIS MORNING AND WILL BE A
CONCERN FOR ANY ADDITIONAL CONVECTION THAT MAY DEVELOP THIS
AFTERNOON/EVENING. PWAT VALUES REMAIN ANOMALOUSLY HIGH AROUND 1.5
INCHES...AND DECENT MOISTURE CONVERGENCE IN THE NEAR SFC
ENVIRONMENT CLOSER TO THE FRONTAL BOUNDARY. THUS ANY ADDITIONAL
SHOWERS/THUNDERSTORMS THAT DEVELOP THIS AFTERNOON/EVENING HAVE THE
POTENTIAL TO BE EFFICIENT PRECIPITATION PRODUCERS.

BEACHLER

&&

.DISCUSSION...

357 AM...ACTIVE PATTERN TO CONTINUE THROUGH SATURDAY WITH
FORECAST CONCERNS FOCUSED ON CONVECTIVE TRENDS/TIMING ALONG WITH
THE POTENTIAL FOR SVR WEATHER AND HEAVY RAIN.

THUNDERSTORMS CONTINUE TO DEVELOP ACROSS THE AREA EARLY THIS
MORNING AS THE LOW LEVEL JET FEEDS MOISTURE AS A SHORTWAVE IS
PASSING TO THE EAST. EXPECT THIS ACTIVITY TO CONTINUE...AT LEAST
ON A SCATTERED BASIS THROUGH SUNRISE WITH A DIMINISHING TREND
INTO THE MID MORNING HRS. THE MAIN COLD FRONT IS NOW PUSHING
THROUGH SOUTHERN WI AND NORTHEAST IOWA...THUS THESE STORMS HAVE
AND WILL CONTINUE TO HAVE THE POTENTIAL TO BE SURFACE BASED WITH
THE POTENTIAL FOR LOCALIZED DAMAGING WIND GUSTS AND PERHAPS SOME
HAIL IN THE STRONGER CORES. THESE STORMS WILL ALSO PRODUCE
TORRENTIAL RAIN...STORM THAT WENT THROUGH LOT AN HR OR SO AGO
REDUCED VISIBILITIES TO JUST A FEW HUNDRED FEET.

WITH EXPECTATION THAT CONVECTION WILL WIND DOWN DURING THIS
MORNING...MIDDAY SHOULD BE RELATIVELY QUIET BUT AS TEMPS WARM AND
INSTABILITY INCREASES AHEAD OF THE FRONT ACROSS CENTRAL IL THIS
AFTERNOON...EXPECT ADDITIONAL THUNDERSTORM DEVELOPMENT WITH SOME
OF THESE STORMS POTENTIALLY BECOMING SEVERE.

MODELS SHOW ANOTHER SHORTWAVE MOVING ACROSS NORTHERN IL AND
SOUTHERN WI EARLY FRIDAY MORNING...AS THE UPPER RIDGE PUSHES BACK
NORTH SOME. LOW LEVEL JET ONCE AGAIN FEEDING INTO THIS SHORTWAVE
AND WITH PRECIPITABLE WATER VALUES BACK INTO THE 1.5 TO 2 INCH
RANGE BY FRIDAY MORNING...THESE STORMS WILL LIKELY PRODUCE HEAVY
RAIN. GIVEN THE HEAVY RAIN THAT HAS OCCURRED SO FAR THIS MORNING
ITS POSSIBLE THAT A FLOOD WATCH MAY BE NEEDED FOR THE NORTHERN
CWA. AND IF NOT FOR LATE TONIGHT/FRIDAY MORNING...A FLOOD WATCH
COULD BE NEEDED FRIDAY NIGHT INTO SATURDAY AS ANOTHER WAVE
LIFTING NORTHEAST ACROSS THE REGION WILL LIKELY PRODUCE HEAVY
RAIN. TOO MUCH UNCERTAINTY FROM THIS DISTANCE AS TO WHERE EXACTLY
THE HEAVIER RAINS WILL OCCUR. FLOW FINALLY TURNS WESTERLY
SATURDAY WITH PRECIP ENDING BY LATE MORNING WITH DRY WEATHER THEN
EXPECTED THROUGH MONDAY.

THE COLD FRONT WILL MOVE SOUTH ACROSS THE CWA THIS MORNING AND
INTO THIS AFTERNOON. TEMPS IN THE 60S ACROSS THE NORTHERN CWA MAY
END UP BEING THE HIGHS FOR THE DAY...PERHAPS SOME RECOVERY WITH
ANY BREAKS IN THE CLOUDS. TEMPS NEAR ALONG THE LAKE MAY STRUGGLE
TO GET BACK INTO THE LOWER 60S...AFTER THIS MORNING/S HIGHS
PRE-FROPA. TEMPS DROP INTO THE 50S TONIGHT MOST AREAS WITH
EASTERLY FLOW UNDER THE ELEVATED CONVECTION. WARM FRONT THEN
PUSHES BACK NORTH INTO THE CENTRAL PART OF THE CWA FRIDAY WITH A
SHARP TEMP GRADIENT POSSIBLE...AND TEMPS POSSIBLE BACK INTO THE
MID/UPPER 80S SOUTH OF THE FRONT FRIDAY. CMS

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 16Z...

* WINDS SETTLING INTO A NORTHEAST DIRECTION BY 18Z.
* PERIOD OF IFR/MVFR CIGS UNTIL AROUND 18Z.

PAW

//DISCUSSION...UPDATED 12Z...

ELEVATED CONVECTION CONTINUES TO PLAGUE NORTHERN IL/NORTHWEST
INDIANA EARLY THIS MORNING AS MID LEVEL DISTURBANCE AND SOUTHWEST
LOW LEVEL JET CONTINUES TO DEVELOP LIFT OVER FRONTAL ZONE AND
PREVIOUS OUTFLOW BOUNDARY FROM EARLIER ORGANIZED STORMS. CURRENT
EXPECTATION IS THAT AREA OF STORMS MOVING INTO WESTERN IL WILL
MOVE EAST ACROSS TERMINALS THROUGH 14/15Z IN ASSOCIATION WITH MID
LEVEL VORT CENTER. NEAR TERM CONVECTION-ALLOWING MODELS THEN
DEPICT SIGNIFICANT WEAKENING OF STORMS WHICH APPEARS REASONABLE
WITH CONTINUED VEERING AND WEAKENING OF LOW LEVEL JET. WHILE
THUNDER POTENTIAL SHOULD DECREASE AT TERMINALS...THUNDERSTORMS
WILL LIKELY CONTINUE TO AFFECT AREAS SOUTH/SOUTHWEST OF TERMINALS
FOR A TIME BEYOND 15Z.

COLD FRONT SLOWLY DRIFTING SOUTH OUT OF WISCONSIN HAS BEEN SLOWED
A BIT BY CONVECTIVELY DISTURBED WIND/PRESSURE FIELD ACROSS
NORTHERN IL...THOUGH FRONT HAS SLIPPED THROUGH MKE/ENW AND SHOULD
CONTINUE ITS SOUTHWARD PUSH THROUGH TERMINALS OVER THE NEXT 2-3 HOURS.
AREA OF MVFR CEILINGS ACROSS CENTRAL/EASTERN WI BEHIND FRONT AND
FORECAST SOUNDINGS INDICATE A PERIOD OF 1500-2500 FT POSSIBLE AS
WINDS SHIFT NORTHEAST BEHIND FRONT AND TEMPS COOL IN BOUNDARY
LAYER THIS MORNING. WOULD ANTICIPATE IMPROVEMENT BACK TO VFR BY
MIDDAY HOWEVER.

ANOTHER STRONG MID LEVEL WAVE CURRENTLY OVER THE SOUTHERN ROCKIES IS
FORECAST TO LIFT ACROSS THE MIDWEST EARLY FRIDAY. THIS WILL RESULT
IN ANOTHER LOW PRESSURE WAVE LIFTING FRONT BACK NORTHEAST AS A
WARM FRONT...AND THE POTENTIAL FOR THE RETURN OF ELEVATED SHOWERS
AND THUNDERSTORMS DEVELOPING AGAIN DURING THE PRE-DAWN HOURS OF
FRIDAY MORNING.

RATZER

//ORD AND MDW CONFIDENCE...UPDATED 16Z...

* MEDIUM CONFIDENCE IN WIND FORECAST.
* MEDIUM CONFIDENCE IN CIG TREND AND TIMING.

PAW

//OUTLOOK FOR ORD/MDW FOR 00Z SATURDAY-12Z THURSDAY...UPDATED 12Z...

FRIDAY NIGHT...VFR EARLY. MVFR POSSIBLE IN TSRA LATE.

SATURDAY...MVFR WITH CHC SHRA EARLY. VFR AFTN.

SUNDAY...VFR.

MONDAY...VFR.

TUESDAY...VFR. CHC TSRA.

WEDNESDAY...VFR. CHC TSRA.

RATZER

&&

.MARINE...
515 AM CDT

A TROUGH OF LOW PRESSURE CONTINUES TO SLOWLY SHIFT EAST AND WEAKEN
THIS MORNING...WITH A COLD FRONT PUSHING SOUTH DOWN THE LAKE.
WINDS WILL CONTINUE TO SHIFT TO THE NORTH BEHIND THIS FRONT AND
INCREASE TO THE 15 TO 25 KT RANGE FOR MOST OF TODAY. THEN WITH A
RIDGE OF HIGH PRESSURE TO THE NORTH MOVING EAST ACROSS THE
REGION...WINDS WILL SHIFT TO THE EAST AND DIMINISH LATE TONIGHT INTO
EARLY FRIDAY. A TROUGH OF LOW PRESSURE WILL THEN DEVELOP AND MOVE
NORTHEAST OUT OF THE CENTRAL PLAINS ON FRIDAY. AS THIS
OCCURS...WINDS WILL BEGIN TO VARY WITH THE APPROACH OF THE LOW
BEFORE TURNING MORE NORTHWEST AS A RIDGE OF HIGH PRESSURE BUILDS
ACROSS THE NORTHERN PLAINS.

RODRIGUEZ

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...SMALL CRAFT ADVISORY...ILLINOIS NEARSHORE WATERS UNTIL 10 AM FRIDAY.

     SMALL CRAFT ADVISORY...LMZ743-LMZ744-LMZ745...9 PM THURSDAY TO 4
     AM FRIDAY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1118 AM CDT THU JUN 9 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
101630-
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-
1118 AM CDT THU JUN 9 2011 /1218 PM EDT THU JUN 9 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS...THE STRONGEST MAY PRODUCE...

  DAMAGING WINDS IN EXCESS OF 60 MPH.
  HALF DOLLAR SIZE HAIL.
  TORRENTIAL RAIN...WHICH MAY CAUSE FLASH FLOODING.
  DEADLY CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  THUNDERSTORMS THAT BROUGHT GUSTY WINDS...HAIL AND EXCESSIVE
  RAINFALL TO PORTIONS OF THE OUTLOOK AREA HAVE WEAKENED. AFTER A
  SMALL LINE OF THUNDERSTORMS PASSES OUT OF NORTHWEST INDIANA AND
  EAST CENTRAL ILLINOIS BY AFTERNOON...A BREAK IN THUNDERSTORM
  ACTIVITY IS EXPECTED FOR MUCH OF THE BALANCE OF THE DAY.

  ADDITIONAL THUNDERSTORMS ARE THEN EXPECTED TO FIRE AGAIN THIS
  EVENING AND BECOME MORE WIDESPREAD OVERNIGHT. THUNDERSTORM
  INITIATION IS MOST LIKELY TO OCCUR ALONG A FRONTAL BOUNDARY FROM
  NORTHERN MISSOURI...ACROSS CENTRAL ILLINOIS AND INDIANA. THESE
  STORMS ARE EXPECTED TO BE SCATTERED AND MAY BRIEFLY PRODUCE
  LARGE HAIL AND DAMAGING WIND GUSTS. OF GREATER CONCERN WILL BE
  THE POTENTIAL FOR ANOTHER THUNDERSTORM COMPLEX TO EVOLVE THROUGH
  THE EVENING HOURS OVER CENTRAL IOWA. THIS AREA OF STORMS WOULD
  THEN LIFT EAST NORTHEAST INTO WISCONSIN AND FAR NORTHERN
  ILLINOIS THROUGH THE OVERNIGHT BRINGING A POTENTIAL FOR FLASH
  FLOODING.

DISCUSSION:

  REMNANTS OF LAST NIGHTS CONVECTION HAVE BEGUN A DIURNAL DECREASE
  IN COVERAGE AND INTENSITY. A COLD FRONT WILL MOVE SOUTH ACROSS
  THE AREA AND WILL BECOME THE FOCUS FOR NEW STORMS AS INSTABILITY
  INCREASES ALONG AND AHEAD OF THIS BOUNDARY FROM CENTRAL ILLINOIS
  THROUGH CENTRAL INDIANA. ANOTHER UPPER LEVEL WAVE WILL MOVE
  ACROSS THE REGION LATE TONIGHT INTO FRIDAY MORNING... PRODUCING
  ELEVATED THUNDERSTORMS WHICH MAY PRODUCE TORRENTIAL RAIN AND THE
  POTENTIAL FOR FLASH FLOODING.

 PORTIONS OF THE KANKAKEE RIVER WILL REMAIN IN FLOOD.

 THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE ILLINOIS
 AND INDIANA SHORES OF LAKE MICHIGAN THROUGH FRIDAY MORNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THUNDERSTORMS WILL BE POSSIBLE FRIDAY AND FRIDAY NIGHT. SOME OF
THESE THUNDERSTORMS MAY BECOME SEVERE...ESPECIALLY FRIDAY
AFTERNOON. ALL OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO
PRODUCE TORRENTIAL RAINFALL WHICH MAY LEAD TO LOCALIZED FLASH
FLOODING.

PORTIONS OF THE KANKAKEE RIVER WILL REMAIN IN FLOOD THROUGH
SATURDAY EVENING. ADDITIONAL RISES ON AREA RIVERS WILL BE
POSSIBLE FRIDAY AND SATURDAY DUE TO EXPECTED HEAVY RAINFALL.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY NIGHT THROUGH
WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BECOME NECESSARY THIS EVENING.

&&

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

LMZ740>745-101630-
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-
1118 AM CDT THU JUN 9 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.

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT. SOME OF
THESE THUNDERSTORMS MAY PRODUCE WIND GUSTS TO 30 KNOTS.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY AND FRIDAY NIGHT.
SOME OF THESE THUNDERSTORMS.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT FRIDAY MORNING.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY NIGHT THROUGH
WEDNESDAY.

&&

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-
870-872-874-876-878-101630-
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-
1118 AM CDT THU JUN 9 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT ACROSS
SOUTHERN LAKE MICHIGAN.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY AND FRIDAY NIGHT.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY NIGHT THROUGH
WEDNESDAY.

&&

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

MERZLOCK

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
957 AM CDT THU JUN 09 2011

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

0837 PM     TSTM WND DMG     ROCKTON                 42.45N 89.07W
06/08/2011                   WINNEBAGO          IL   PUBLIC

            SMALL LIMBS AND LEAVES DOWN

0837 PM     TSTM WND DMG     SOUTH BELOIT            42.48N 89.03W
06/08/2011                   WINNEBAGO          IL   BROADCAST MEDIA

            5 INCH BRANCH DOWN.

0845 PM     TSTM WND GST     MACHESNEY PARK          42.36N 89.04W
06/08/2011  M55.00 MPH       WINNEBAGO          IL   TRAINED SPOTTER

0845 PM     TSTM WND DMG     POPLAR GROVE            42.37N 88.82W
06/08/2011                   BOONE              IL   TRAINED SPOTTER

            A FEW SHINGLES BLOWN OF HOUSE. 6 FOOT ASH TREE, 3 IN DIA
            TRUNK SNAPPED AT 1 FOOT ABOVE GROUND.

0856 PM     TSTM WND GST     SOUTH BELOIT            42.48N 89.03W
06/08/2011  M55.00 MPH       WINNEBAGO          IL   TRAINED SPOTTER

            ROUTE 251 AND RALSTON ROAD. TEMP DROP 20 DEGREES.

0921 PM     HAIL             ROSCOE                  42.42N 89.01W
06/08/2011  E0.50 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            ROSCOE RD AND US251

0924 PM     TSTM WND DMG     SPRING GROVE            42.44N 88.24W
06/08/2011                   MCHENRY            IL   TRAINED SPOTTER

            ROUTE 12 AND WINNEBAGO ROAD JUST WEST OF INTERSECTION 20
            TO 30 YEAR OLD TREE SNAPPED. TRUNK DIAMETER ESTIMATED AT
            1 FOOT.

0953 PM     TSTM WND DMG     VERNON HILLS            42.24N 87.96W
06/08/2011                   LAKE               IL   TRAINED SPOTTER

            15 FT LONG- 3IN DIA BRANCH DOWN.

1003 PM     HAIL             ROSCOE                  42.42N 89.01W
06/08/2011  E0.50 INCH       WINNEBAGO          IL   BROADCAST MEDIA

            REPORTED BY CO-WORKER OF WTVO.

1003 PM     HAIL             WINNEBAGO               42.27N 89.24W
06/08/2011  E1.75 INCH       WINNEBAGO          IL   BROADCAST MEDIA

            AT WREX-TV STUDIOS.

1004 PM     TSTM WND DMG     FORRESTON               42.13N 89.58W
06/08/2011                   OGLE               IL   LAW ENFORCEMENT

            POWER LINES AND TREES DOWN. REPORT RELAYED FROM OGLE
            COUNTY SHERIFF. TIME ESTIMATED FROM RADAR.

1004 PM     TSTM WND DMG     FORRESTON               42.13N 89.58W
06/08/2011                   OGLE               IL   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN.

1007 PM     HAIL             GRAYSLAKE               42.35N 88.04W
06/08/2011  E0.50 INCH       LAKE               IL   TRAINED SPOTTER

            WEST TRAIL RD AND PATRICIA COURT.

1010 PM     TSTM WND GST     POPLAR GROVE            42.37N 88.82W
06/08/2011  E60.00 MPH       BOONE              IL   TRAINED SPOTTER

1011 PM     TSTM WND GST     ROCKFORD AIRPORT        42.20N 89.10W
06/08/2011  M60.00 MPH       WINNEBAGO          IL   ASOS

1012 PM     HAIL             POPLAR GROVE            42.37N 88.82W
06/08/2011  E1.00 INCH       BOONE              IL   TRAINED SPOTTER

            SIZE RANGED FROM PENNY TO QUARTER.

1012 PM     HAIL             POPLAR GROVE            42.37N 88.82W
06/08/2011  E1.00 INCH       BOONE              IL   COCORAHS

            3/4 TO 1 INCH HAIL.

1015 PM     HAIL             BELVIDERE               42.25N 88.85W
06/08/2011  E0.50 INCH       BOONE              IL   TRAINED SPOTTER

            APPLETON RD AND EAST STATE ST.

1015 PM     HAIL             1 NE BELVIDERE          42.26N 88.83W
06/08/2011  E0.50 INCH       BOONE              IL   COCORAHS

1016 PM     TSTM WND DMG     BYRON                   42.13N 89.26W
06/08/2011                   OGLE               IL   LAW ENFORCEMENT

            POWER LINES AND TREES DOWN.

1016 PM     TSTM WND DMG     BYRON                   42.13N 89.26W
06/08/2011                   OGLE               IL   LAW ENFORCEMENT

            POWER LINES AND TREES DOWN. REPORT RELAYED FROM OGLE
            COUNTY SHERIFF. TIME ESTIMATED FROM RADAR.

1020 PM     FLOOD            ROCKFORD                42.27N 89.06W
06/08/2011                   WINNEBAGO          IL   TRAINED SPOTTER

            8 TO 10 INCHES OF WATER DOWNTOWN AT W 8TH ST AND CORT ST.

1022 PM     HAIL             BELVIDERE               42.25N 88.85W
06/08/2011  E1.75 INCH       BOONE              IL   TRAINED SPOTTER

            SOUTH OF BELVIDERE - MARBLE TO GOLF BALL SIZED HAIL. VIA
            BROADCAST MEDIA.

1022 PM     HAIL             3 S BELVIDERE           42.21N 88.85W
06/08/2011  E1.75 INCH       BOONE              IL   TRAINED SPOTTER

            ESTIMATED HAIL FROM MARBLE TO GOLFBALL IN SIZE. SPOTTER
            WAS SOUTH OF BELVIDERE. WINDS ESTIMATED TO 45 MPH.

1023 PM     HAIL             BELVIDERE               42.25N 88.85W
06/08/2011  E0.50 INCH       BOONE              IL   PUBLIC

            PUBLIC REPORT VIA BROADCAST MEDIA.

1029 PM     HAIL             POLO                    41.98N 89.58W
06/08/2011  E1.00 INCH       OGLE               IL   EMERGENCY MNGR

1033 PM     TSTM WND DMG     PLANO                   41.66N 88.53W
06/08/2011                   KENDALL            IL   LAW ENFORCEMENT

            TREE LIMB ON CAR. TIME ESTIMATED BASED ON RADAR.

1040 PM     HAIL             2 S WOODSTOCK           42.28N 88.44W
06/08/2011  E0.50 INCH       MCHENRY            IL   TRAINED SPOTTER

1042 PM     TSTM WND DMG     MACHESNEY PARK          42.36N 89.04W
06/08/2011                   WINNEBAGO          IL   TRAINED SPOTTER

            6 IN DIA TREE SNAPPED. 7800 BLOCK OF HILDRED RD.

1050 PM     HAIL             4 NE GURNEE             42.43N 87.88W
06/08/2011  M0.75 INCH       LAKE               IL   COCORAHS

            DELAYED REPORT FROM LAST NIGHT.

1050 PM     TSTM WND GST     2 N PINGREE GROVE       42.10N 88.41W
06/08/2011  E50.00 MPH       KANE               IL   EMERGENCY MNGR

            REINKEN RD NORTHWEST OF IL72. ALSO PEA SIZE HAIL.

1050 PM     TSTM WND DMG     ROCKFORD                42.27N 89.06W
06/08/2011                   WINNEBAGO          IL   TRAINED SPOTTER

            6 IN DIA TREE SNAPPED. ALPINE RD AND HARRISON.

1051 PM     TSTM WND DMG     MACHESNEY PARK          42.36N 89.04W
06/08/2011                   WINNEBAGO          IL   TRAINED SPOTTER

            10 INCH DIA TREE DOWN. WILSON WATERVIEW. POSSIBLE
            LIGHTNING DAMAGE.

1105 PM     HAIL             LAKE ZURICH             42.19N 88.09W
06/08/2011  E0.50 INCH       LAKE               IL   TRAINED SPOTTER

            AT ROUTE 12 AND ROUTE 22.

1116 PM     HAIL             1 SE BARTLETT           41.97N 88.19W
06/08/2011  E0.25 INCH       DUPAGE             IL   COCORAHS

1117 PM     HAIL             2 N ELBURN              41.92N 88.47W
06/08/2011  E0.25 INCH       KANE               IL   TRAINED SPOTTER

1121 PM     HAIL             FRANKLIN GROVE          41.84N 89.30W
06/08/2011  E0.88 INCH       LEE                IL   EMERGENCY MNGR

1139 PM     TSTM WND GST     GLEN ELLYN              41.87N 88.06W
06/08/2011  M55.00 MPH       DUPAGE             IL   TRAINED SPOTTER

1150 PM     TSTM WND DMG     PLANO                   41.66N 88.53W
06/08/2011                   KENDALL            IL   LAW ENFORCEMENT

            TELEPHONE POLE SNAPPED. NEAR FOX RIVER DR.

1153 PM     TSTM WND DMG     3 S SUGAR GROVE         41.73N 88.46W
06/08/2011                   KANE               IL   LAW ENFORCEMENT

            LARGE TREES DOWN - IL47 AND BASELINE RD.

1210 AM     TSTM WND DMG     LISBON                  41.48N 88.48W
06/09/2011                   KENDALL            IL   LAW ENFORCEMENT

            TREE DOWN NEAR US52 AND LISBON RD.

1217 AM     HAIL             ELWOOD                  41.41N 88.11W
06/09/2011  E0.25 INCH       WILL               IL   TRAINED SPOTTER

            NEAR BASELINE RE AND ARSENAL RD.

1235 AM     HAIL             6 N GIFFORD             41.15N 87.04W
06/09/2011  M0.25 INCH       JASPER             IN   COCORAHS

            DELAYED REPORT

1240 AM     HAIL             BRADLEY                 41.15N 87.86W
06/09/2011  E0.75 INCH       KANKAKEE           IL   TRAINED SPOTTER

            HAIL RANGED FROM 1/2 INCH TO 3/4 INCH.

0242 AM     HAIL             ROMEOVILLE              41.65N 88.09W
06/09/2011  E0.25 INCH       WILL               IL   OFFICIAL NWS OBS

0250 AM     HEAVY RAIN       OAK LAWN                41.72N 87.75W
06/09/2011  M0.90 INCH       COOK               IL   COCORAHS

            0.90 RAINFALL IN PAST 25 MINUTES. WIND GUSTS ESTIMATED AT
            50 MPH.

0300 AM     TSTM WND GST     EVERGREEN PARK          41.72N 87.70W
06/09/2011  M58.00 MPH       COOK               IL   FIRE DEPT/RESCUE

            SUSTAINED WINDS 48-50 MPH WITH PEAK GUST TO 58 MPH. PEA
            SIZED HAIL. 91ST AND CLIFTON PARK.

0300 AM     TSTM WND DMG     WORTH                   41.69N 87.79W
06/09/2011                   COOK               IL   TRAINED SPOTTER

            5 INCH DIA TREE FELL ON HOME WITH SMALLER BRANCHES DOWN
            ELSWHERE. 117TH ST AND RIDGELAND.

0310 AM     HEAVY RAIN       BURNHAM                 41.64N 87.54W
06/09/2011  M0.67 INCH       COOK               IL   COCORAHS

            RAINFALL IN PAST 10 MINUTES.

0310 AM     TSTM WND GST     BURNHAM                 41.64N 87.54W
06/09/2011  E67.00 MPH       COOK               IL   COCORAHS

0345 AM     HAIL             AMBOY                   41.72N 89.33W
06/09/2011  E0.50 INCH       LEE                IL   LAW ENFORCEMENT

0410 AM     HAIL             FRANKLIN GROVE          41.84N 89.30W
06/09/2011  E0.50 INCH       LEE                IL   TRAINED SPOTTER

0600 AM     HEAVY RAIN       2 N JOLIET              41.56N 88.12W
06/09/2011  M3.53 INCH       WILL               IL   CO-OP OBSERVER

0600 AM     HEAVY RAIN       JOLIET                  41.53N 88.12W
06/09/2011  M3.10 INCH       WILL               IL   CO-OP OBSERVER

            JOLIET LOCK AND DAM

0641 AM     HAIL             1 S BYRON               42.11N 89.26W
06/09/2011  M0.50 INCH       OGLE               IL   BROADCAST MEDIA

0650 AM     HAIL             FORRESTON               42.13N 89.58W
06/09/2011  M0.25 INCH       OGLE               IL   BROADCAST MEDIA

0655 AM     FLOOD            AURORA                  41.77N 88.29W
06/09/2011                   KANE               IL   TRAINED SPOTTER

            RAMP FROM FARNSWORTH TO I-88 HAS 6 INCHES OF STANDING
            WATER ON IT.

0700 AM     HEAVY RAIN       5 SW FRANKFORT          41.46N 87.91W
06/09/2011  M2.53 INCH       WILL               IL   COCORAHS

            RAIN IN THE PAST 8 HOURS

0700 AM     HEAVY RAIN       ROMEOVILLE              41.65N 88.09W
06/09/2011  M4.19 INCH       WILL               IL   OFFICIAL NWS OBS

            STORM TOTAL

0710 AM     FLASH FLOOD      PLAINFIELD              41.62N 88.20W
06/09/2011                   WILL               IL   EMERGENCY MNGR

            ROUTE 30 CLOSED BETWEEN 127TH AND 135TH.

0718 AM     FLOOD            AMBOY                   41.72N 89.33W
06/09/2011                   LEE                IL   EMERGENCY MNGR

            INTERSECTIONS FLOODED IN AMBOY. FLOODING ON PALMYRA ROAD
            NORTH OF ROUTE 2.

0737 AM     HEAVY RAIN       2 N OTTAWA              41.37N 88.84W
06/09/2011  M0.72 INCH       LA SALLE           IL   COCORAHS

            AMOUNT OF RAIN IN THE PAST 10 MINUTES

0745 AM     HEAVY RAIN       4 SE AURORA             41.73N 88.24W
06/09/2011  M2.90 INCH       DUPAGE             IL   COCORAHS

0809 AM     FLOOD            OAK LAWN                41.72N 87.75W
06/09/2011                   COOK               IL   PUBLIC

            3 INCHES STANDING WATER AT 91ST AND CICERO

0809 AM     FLOOD            YORKVILLE               41.64N 88.45W
06/09/2011                   KENDALL            IL   PUBLIC

            MIDDLE AUX SABLE CREEK OUT OF BANKS NEAR ASHLEY RD

0813 AM     HEAVY RAIN       OAK BROOK               41.84N 87.95W
06/09/2011  M2.01 INCH       DUPAGE             IL   CO-OP OBSERVER

            RAINFALL TOTAL AS OF 800 AM

0817 AM     FLOOD            OSWEGO                  41.70N 88.33W
06/09/2011                   KENDALL            IL   TRAINED SPOTTER

            10-12 INCHES OF STANDING WATER AT THE INTERSECTION OF
            DOLORES ST AND CHARLES CT.

0825 AM     HEAVY RAIN       3 SW MIDWAY AIRPORT     41.75N 87.79W
06/09/2011  M2.99 INCH       COOK               IL   CO-OP OBSERVER

            RAINFALL FROM 1130 PM THROUGH 815 AM

0830 AM     HEAVY RAIN       3 NW MARSEILLES         41.36N 88.72W
06/09/2011  M2.15 INCH       LA SALLE           IL   COCORAHS

            1.12 INCHES IN THE PAST 60 MINUTES

0840 AM     FLOOD            COUNTRYSIDE             41.78N 87.88W
06/09/2011                   COOK               IL   NWS EMPLOYEE

            4-8 INCHES HIGH STANDING WATER ON LAGRANGE RD BETWEEN
            55TH AND PLAINFIELD RD.

0855 AM     FLOOD            BURR RIDGE              41.75N 87.92W
06/09/2011                   DUPAGE             IL   NWS EMPLOYEE

            4-12 INCHES OF HIGH STANDING WATER ON I-55 SOUTHBOUND,
            1/4 MILE EAST OF RT 83

0905 AM     FLOOD            BOLINGBROOK             41.70N 88.08W
06/09/2011                   WILL               IL   NWS EMPLOYEE

            5-10 INCHES OF STANDING WATER ON JOLIET RD AT BLUFF RD.

0915 AM     HEAVY RAIN       PEOTONE                 41.33N 87.80W
06/09/2011  M1.26 INCH       WILL               IL   TRAINED SPOTTER

            AMOUNT OF RAIN SINCE 610 AM. 1.06 INCHES OF RAIN FELL IN
            THE PAST 20 MINUTES.

0915 AM     HEAVY RAIN       HOMEWOOD                41.56N 87.66W
06/09/2011  M2.85 INCH       COOK               IL   COCORAHS

            STORM TOTAL. 1.10 INCHES OF RAIN SINCE 700 AM.

0915 AM     FLOOD            ROMEOVILLE              41.65N 88.09W
06/09/2011                   WILL               IL   NWS EMPLOYEE

            4-8 INCHES HIGH STANDING WATER ON RT 53, 1/3 MILE NORTH
            OF TAYLOR RD.

0930 AM     HEAVY RAIN       3 WSW CHICAGO HEIGHTS   41.49N 87.68W
06/09/2011  M3.40 INCH       COOK               IL   COCORAHS

            STORM TOTAL

0930 AM     HEAVY RAIN       2 NNW BURNHAM           41.66N 87.55W
06/09/2011  M3.13 INCH       COOK               IL   COCORAHS

            RAINFALL IN THE PAST 9.5 HOURS

&&

ACS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1005 AM CDT THU JUN 09 2011

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

0910 AM     HEAVY RAIN       SSE BOURBONNAIS         41.16N 87.88W
06/09/2011  M1.00 INCH       KANKAKEE           IL   COCORAHS

            0.90 INCHES IN THE PAST 20 MINUTES

&&

ACS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1014 AM CDT THU JUN 09 2011

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

1013 AM     HEAVY RAIN       PARK FOREST             41.48N 87.69W
06/09/2011  M3.41 INCH       COOK               IL   TRAINED SPOTTER

            STORM TOTAL THROUGH 10AM

&&

WDM

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1024 AM CDT THU JUN 09 2011

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

1020 AM     HEAVY RAIN       OAK BROOK               41.84N 87.95W
06/09/2011  M2.58 INCH       DUPAGE             IL   CO-OP OBSERVER

            STORM TOTAL

1020 AM     HEAVY RAIN       ST. CHARLES             41.92N 88.30W
06/09/2011  M2.76 INCH       KANE               IL   CO-OP OBSERVER

            STORM TOTAL

&&

ACS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1045 AM CDT THU JUN 09 2011

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

1030 AM     HEAVY RAIN       E ALSIP                 41.67N 87.73W
06/09/2011  M3.70 INCH       COOK               IL   COCORAHS

&&

ACS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1048 AM CDT THU JUN 09 2011

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

1047 AM     FLOOD            OAK LAWN                41.72N 87.75W
06/09/2011                   COOK               IL   PUBLIC

            HIGH STANDING WATER AT 103RD AND CENTRAL.

&&

ACS