Severe Thunderstorm Warning 28, NWS Chicago, IL

797 
WWUS53 KLOT 160041
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
741 PM CDT TUE MAY 15 2012

ILC111-160049-
/O.CAN.KLOT.SV.W.0028.000000T0000Z-120516T0100Z/
MCHENRY IL-
741 PM CDT TUE MAY 15 2012


...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCHENRY COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. GUSTY WINDS UP TO 50 MPH MAY CONTINUE...CAUSING SMALL BRANCHES 
TO BE BLOW DOWN...AND LOOSE OBJECTS TO BLOW AROUND. 

LAT...LON 4208 8829 4212 8821 4215 8817 4215 8793
      4215 8788 4182 8805 4200 8843
TIME...MOT...LOC 0039Z 293DEG 32KT 4203 8818

$$

ILC031-043-089-160100-
/O.CON.KLOT.SV.W.0028.000000T0000Z-120516T0100Z/
KANE IL-DUPAGE IL-COOK IL-
741 PM CDT TUE MAY 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
COOK...NORTHERN DUPAGE AND EAST CENTRAL KANE COUNTIES UNTIL 800 PM
CDT...

AT 737 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR STREAMWOOD...OR NEAR HOFFMAN
ESTATES...MOVING SOUTHEAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HANOVER PARK AND SCHAUMBURG AROUND 745 PM CDT.
  MEDINAH...ROSELLE...CAROL STREAM AND ROLLING MEADOWS AROUND 750 PM
  CDT.
  ITASCA...WOOD DALE...ELK GROVE VILLAGE AND ADDISON AROUND 755 PM
  CDT.

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
COLLEGE OF DUPAGE...DUPAGE COUNTY FAIRGROUNDS...ELGIN COMMUNITY
COLLEGE...HARPER COLLEGE...SCHAUMBURG BOOMERS BASEBALL AND WHEATON
COLLEGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4208 8829 4212 8821 4215 8817 4215 8793
      4215 8788 4182 8805 4200 8843
TIME...MOT...LOC 0039Z 293DEG 32KT 4203 8818
WIND...HAIL 60MPH <.50IN

$$

BEACHLER

904 
WWUS53 KLOT 160051
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
751 PM CDT TUE MAY 15 2012

ILC089-160101-
/O.CAN.KLOT.SV.W.0028.000000T0000Z-120516T0100Z/
KANE IL-
751 PM CDT TUE MAY 15 2012


...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL KANE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. GUSTY WINDS UP TO 50 MPH MAY CONTINUE...CAUSING SMALL BRANCHES 
TO BE BLOW DOWN...AND LOOSE OBJECTS TO BLOW AROUND.

LAT...LON 4205 8810 4209 8791 4182 8805 4192 8825
TIME...MOT...LOC 0051Z 293DEG 32KT 4199 8805

$$

ILC031-043-160100-
/O.CON.KLOT.SV.W.0028.000000T0000Z-120516T0100Z/
DUPAGE IL-COOK IL-
751 PM CDT TUE MAY 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
COOK AND NORTHERN DUPAGE COUNTIES UNTIL 800 PM CDT...

AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ROSELLE...MOVING SOUTHEAST AT 35
MPH.

THIS SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
DUPAGE AND NORTHWESTERN COOK COUNTIES.

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
COLLEGE OF DUPAGE...DUPAGE COUNTY FAIRGROUNDS...SCHAUMBURG BOOMERS
BASEBALL AND WHEATON COLLEGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4205 8810 4209 8791 4182 8805 4192 8825
TIME...MOT...LOC 0051Z 293DEG 32KT 4199 8805
WIND...HAIL 60MPH <.50IN

$$

BEACHLER

316 
WWUS53 KLOT 160102
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
802 PM CDT TUE MAY 15 2012

ILC031-043-160112-
/O.EXP.KLOT.SV.W.0028.000000T0000Z-120516T0100Z/
DUPAGE IL-COOK IL-
802 PM CDT TUE MAY 15 2012


...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN COOK AND NORTHERN
DUPAGE COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. GUSTY WINDS UP TO 50 MPH MAY CONTINUE...CAUSING SMALL BRANCHES 
TO BE BLOW DOWN...AND LOOSE OBJECTS TO BLOW AROUND.

LAT...LON 4205 8810 4209 8791 4182 8805 4192 8825
TIME...MOT...LOC 0051Z 293DEG 32KT 4199 8805

$$

BEACHLER

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
712 PM CDT TUE MAY 15 2012

.DISCUSSION...
251 PM CDT

FORECAST FOCUS IN NEAR TERM REMAINS COLD FRONTAL PASSAGE THIS
EVENING AND THE POTENTIAL FOR ISOLATED/SCATTERED CONVECTION. AFTER A
MUCH COOLER DAY WEDNESDAY...A WARMING TREND BACK TO SUMMER-LIKE
TEMPERATURES AND EVENTUALLY AND INCREASING POTENTIAL FOR
THUNDERSTORMS IS EXPECTED THROUGH THE WEEKEND.

AT 19Z...SFC ANALYSIS DEPICTS COLD FRONT STRETCHING FROM NEAR GREEN
BAY WISCONSIN...TO AMES IN CENTRAL IOWA. WARM SECTOR AHEAD OF FRONT
IS CHARACTERIZED BY TEMPS IN MID-UPPER 80S FROM NORTHERN IL BACK
INTO EASTERN IA...THOUGH VERY DRY LOW LEVELS AS INDICATED BY SFC DEW
PTS GENERALLY IN THE UPPER 30S TO MID 40S. THIS NOT SURPRISING GIVEN
EXTREMELY DRY LOW-MID LEVELS SEEN IN 12Z RAOBS AT UPSTREAM AT
MPX/OAX...THOUGH THERE IS A NARROW AXIS OF SLIGHTLY HIGHER DWPTS
FROM WESTERN IL INTO NORTHEAST IL. 18Z RAP APPEARS TO HAVE A DECENT
HANDLE ON THE LOW LEVEL MOISTURE FIELD...AND REMAINS CONSISTENT IN
DEVELOPING CONVECTIVE PRECIP AHEAD OF FRONT ACROSS CNTRL/EASTERN WI
AND DEVELOPING IT SOUTHEAST INTO NORTHERN/NORTHEAST IL EARLY THIS
EVENING. DESPITE VIGOROUS MID-LEVEL SHORT WAVE DIGGING SOUTHEAST
ACROSS THE NORTHERN LAKES...STEEP LOW/MID LEVEL LAPSE RATES AND THE
APPROACH OF A RELATIVELY STRONG COLD FRONTAL BOUNDARY...DEARTH OF
LOW LEVEL MOISTURE SUGGESTS IT WILL LIKELY BE DIFFICULT TO DEVELOP
SIGNIFICANT THUNDERSTORM COVERAGE...WITH HIGH LCL/LFC AND FAIRLY
SKINNY CAPE PROFILES OF 200-300 J/KG ALOFT PER RAP SOUNDINGS. THUS
WHILE ISOLATED-SCATTERED STORMS CANT BE RULED OUT COMPLETELY WITH
FROPA EARLY THIS EVENING...CONTINUE TO SUSPECT COVERAGE WILL BE
RELATIVELY LOW AND CONDITIONAL SEVERE THREAT MINIMAL. AS NOTED
PREVIOUSLY...ANY ACTIVITY WHICH DOES DEVELOP SHOULD HAVE A FAIRLY
STRONG DIURNAL COMPONENT AND SHOULD FADE QUICKLY WITH COOLING OF
BOUNDARY LAYER BEYOND SUNSET. WILL CONTINUE TO MAINTAIN ONLY LOW
CHANCE POPS.

HIGH PRESSURE WILL THEN BUILD ACROSS THE GREAT LAKES REGION
WEDNESDAY IN THE WAKE OF THE MID-LEVEL WAVE AND COLD FRONT. MUCH
COOLER TEMPS THAN TODAY CAN BE EXPECTED...RANGING FROM AROUND 60
NEAR THE LAKE MICHIGAN SHORE TO THE LOW 70S IN THE FAR WEST/SOUTH
REACHES OF THE CWA. FLAT UPPER LEVEL RIDGE THEN SPREADS ACROSS THE
MIDWEST THURSDAY...WITH LOW LEVEL WARM ADVECTION FOCUSING ACROSS THE
UPPER MISSISSIPPI VALLEY AND ACROSS THE NORTHERN LAKES FRIDAY. AXIS
OF LOW LEVEL 40-50 KT JET KEEPS THUNDERSTORM FOCUS NORTH/NORTHWEST
OF THE CWA THROUGH THIS TIME. UPPER RIDGE STRENGTHENS OVER THE
MIDWEST INTO THE WEEKEND AS BROAD TROUGH PUSHES EAST ACROSS THE
WESTERN HALF OF THE CONUS. SOUTHEAST/SOUTH FLOW THROUGH THE PERIOD
WILL LEAD TO TEMPS GRADUALLY WARMING FROM THE 70S THURSDAY INTO THE
LOW-MID80S FRI AND MID 80S SAT. LOW LEVEL MOISTURE WILL ALSO
GRADUALLY INCREASE FROM THE WEST/SOUTHWEST OVER THE WEEKEND AS
WESTERN TROUGH AND COLD FRONT SLOWLY APPROACH. GUIDANCE HAS SLOWED
FRONTAL ARRIVAL SOMEWHAT...HOLDING OFF GREATER PRECIP/THUNDERSTORM
THREAT UNTIL SUNDAY NIGHT AND MONDAY. UPPER TROUGH THEN MOVES SLOWLY
ACROSS THE AREA EARLY NEXT WEEK WITH COOLER WEATHER AS LOW LEVEL
FLOW BECOMES NORTHERLY BEHIND THE FRONT.

RATZER

&&

.AVIATION...

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

 * GUSTY WINDS AND FRONTAL PASSAGE
 * ASSOCIATED WIND GUSTS
 * SHOWERS AND THE OCNL CLAP OF THUNDER THIS EVENING

SHEA

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

MAIN CONCERNS THIS EVENING ARE SHOWERS AND THE OCCASIONAL CLAP OF
THUNDER THAT ARE MOVING ACROSS THE TERMINALS...OR WILL BE MOVING
OVERHEAD OVER THE NEXT HOUR OR SO. MAIN STORMS HAVE ALREADY TAPPED
INTO THE MOST UNSTABLE PARTS OF THE ATMOSPHERE AND ARE HAVING
DIFFICULTY PRODUCING ANYTHING BEYOND STRONG WIND GUSTS. AS THEY
MOVE THROUGH THEY ARE RAINING WITH VFR VISIBILITIES AND CIGS ARE
ALSO REMAINING VFR. WITH THE DRY ATMOSPHERE...STRONG WIND GUSTS
HAVE BEEN NOTED. ADDED IN A TEMPO GROUP TO ACCOMODATE...AND
VARIOUS UPSTREAM SITES HAVE SHOWN WINDS SUSTAINED OUT OF THE
NORTHWEST AROUND 20 KT...WITH GUSTS IN THE MID 30 KT RANGE. MAIN
FRONT WILL THEN SETTLE SOUTH AND WINDS WILL RAPIDLY SHIFT THROUGH
NORTHWESTERLY TO NORTH-NORTHEASTERLY OVERNIGHT. WITH HIGH PRESSURE
BUILDING IN BEHIND THE FRONT...WINDS ARE EXPECTED TO REMAIN
RELATIVELY LIGHT THROUGH TOMORROW.

SHEA

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

 * MODERATE TO HIGH CONFIDENCE WITH WINDS AND SHIFT THIS EVENING
 * HIGH CONFIDENCE ON TIMING OF SHRA/ OCNL TSRA
 * HIGH CONFIDENCE IN POST SHOWER FORECAST ELEMENTS

SHEA

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

 * THURSDAY THROUGH SATURDAY...VFR.
 * SUNDAY...CHANCE OF TSRA. GUSTY SOUTHWEST WINDS.
 * MONDAY...CHANCE OF TSRA.

SHEA

&&

.MARINE...
353 PM CDT

A COLD FRONT TRAILING BACK SOUTHWESTWARD FROM LOW PRESSURE OVER
FAR EASTERN ONTARIO BETWEEN JAMES BAY AND GEORGIAN BAY...ACROSS
THE FAR EASTERN UPPER PENINSULA OF MI...CENTRAL WI AND SE IA WILL
CONTINUE TO PUSH SE ACROSS THE UPPER GREAT LAKES AND MID MS VALLEY
THIS EVENING AS THE LOW CONTINUES TO MOVE E TO CENTRAL QUEBEC
DURING THE NIGHT. HIGH PRESSURE CENTERED OVER SOUTHERN MANITOBA
AND EXTENDING S ACROSS THE NORTHERN PLAINS WILL BUILD ACROSS THE
UPPER MIDWEST AND MID MO VALLEY OVERNIGHT BEHIND THE COLD FRONT.
COLD AIR ADVECTION AND A SIGNIFICANT 3 HR PRESSURE RISE CENTER OF
5-6 MB WAS MOVING SE ACROSS CENTRAL LAKE SUPERIOR AND THE U.P. OF
MI GENERATING SOME NW GUSTS TO AROUND 30 KT BEHIND THE COLD FRONT.
THIS PRESSURE RISE CENTER IS EXPECTED TO SWING ACROSS NORTHERN
LAKE MI THIS EVE CAUSING SOME GUSTY NW AND N WINDS MAINLY ON THE N
PORTION OF THE LAKE.

HIGH PRESSURE CENTERED OVER SOUTHERN MANITOBA AND EXTENDING S
ACROSS THE NORTHERN PLAINS WILL BUILD ACROSS THE UPPER MIDWEST AND
MID MO VALLEY OVERNIGHT BEHIND THE COLD FRONT WITH THE PRESSURE
GRADIENT OVER LAKE MI GRADUALLY WEAKENING AND THE RESULTANT WINDS
SLACKING. THIS HIGH THEN MOVES E OVER THE UPPER GREAT LAKES DURING
WED BRINGING LIGHTER WINDS TO THE LAKE. AS THE HIGH SHIFTS FURTHER
E TO THE LOWER GREAT LAKES DURING THU SE WINDS WILL START TO
SLOWLY INCREASE THU NIGHT AND FRI AS LOW PRESSURE MOVES E OVER THE
CENTRAL PLAINS.

TRS

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
341 PM CDT TUE MAY 15 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162045-
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-
341 PM CDT TUE MAY 15 2012 /441 PM EDT TUE MAY 15 2012/

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

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  ISOLATED THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
   DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
   HAIL TO ONE INCH.

  AREAS AFFECTED AND TIMING:

   ISOLATED THUNDERSTORMS WERE DEVELOPING ALONG AN ADVANCING COLD
   FRONT AT MID AFTERNOON ACROSS FAR SOUTHWEST WISCONSIN. THIS FRONT
   WILL PUSH SOUTHEAST INTO NORTHERN FAR NORTHERN ILLINOIS NORTH OF
   INTERSTATE 88 THROUGH ABOUT 7 PM...AND ACROSS THE REMAINDER OF
   NORTHERN ILLINOIS AND NORTHWEST INDIANA THROUGH THE EVENING HOURS.
   ANY STORMS SHOULD RAPIDLY DECREASE IN COVERAGE AND INTENSITY BY
   LATE EVENING.

  DISCUSSION:

 A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE AREA THIS EVENING. DESPITE
 THE PRESENCE OF RELATIVELY DRY LOW LEVEL AIR...A NARROW AXIS OF
 INSTABILITY IMMEDIATELY AHEAD OF THE FRONT WILL LIKELY TO CONTINUE
 TO SUPPORT ISOLATED THUNDERSTORM DEVELOPING DUE TO LIFT ALONG THE
 FRONT AS IT MOVES ACROSS THE REGION THIS EVENING. WHILE THUNDERSTORM
 COVERAGE IS ANTICIPATED TO BE RATHER LOW...ISOLATED STORMS THAT
 DO FORM COULD REACH SEVERE LIMITS AND PRODUCE GUSTY WINDS...AND
 POSSIBLY LARGE HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN SUNDAY INTO MONDAY. AT
THIS TIME THE POTENTIAL FOR WIDESPREAD HAZARDOUS WEATHER DURING
THIS PERIOD APPEARS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS WILL LIKELY NOT BE NEEDED TONIGHT...THOUGH ANY REPORTS OF
THUNDERSTORM PRODUCED WIND OR HAIL WOULD BE WELCOME.

&&

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

LMZ740>745-162045-
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-
341 PM CDT TUE MAY 15 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.

THERE IS A CHANCE OF ISOLATED THUNDERSTORMS THIS EVENING. SOME OF
THE STORMS COULD APPROACH SEVERE LIMITS...WITH THE POTENTIAL TO
PRODUCE WIND GUSTS OF 50 KNOTS AND HAIL TO ONE INCH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN SUNDAY INTO MONDAY.

&&

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-
870-872-874-876-878-162045-
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-
341 PM CDT TUE MAY 15 2012

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

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS CENTRAL AND SOUTHERN
LAKE MICHIGAN THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF PERIODIC THUNDERSTORMS ACROSS CENTRAL AND
NORTHERN LAKE MICHIGAN LATE THURSDAY THROUGH FRIDAY...AND AGAIN
SUNDAY THROUGH MONDAY.

&&

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

RATZER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
555 PM CDT TUE MAY 15 2012

ILZ003>005-160000-
BOONE IL-MCHENRY IL-WINNEBAGO IL-
555 PM CDT TUE MAY 15 2012

...SPECIAL WEATHER STATEMENT...

AT 551 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR ROSCOE...MOVING EAST AT 35 MPH.

WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
MODERATE DOWNPOURS...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  ROSCOE...             SOUTH BELOIT...       MACHESNEY PARK...
  LOVES PARK...         POPLAR GROVE...       CAPRON...
  HARVARD...            MARENGO...            HEBRON...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
BOONE COUNTY FAIRGROUNDS...ROCK CUT STATE PARK...ROCK VALLEY
COLLEGE...ROCKFORD RIVERHAWKS BASEBALL AND ROCKFORD SPEEDWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. HEAVY RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND
POOR VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM
HAS PASSED.

LAT...LON 4249 8836 4216 8855 4234 8912 4250 8904
TIME...MOT...LOC 2255Z 291DEG 32KT 4243 8894

BEACHLER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
620 PM CDT TUE MAY 15 2012

ILZ005-006-011-012-014-160000-
COOK IL-DE KALB IL-KANE IL-LAKE IL-MCHENRY IL-
620 PM CDT TUE MAY 15 2012

...SPECIAL WEATHER STATEMENT...

AT 614 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTH OF LAKE
CATHERINE TO MARENGO...MOVING EAST AT 40 MPH.

WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
MODERATE DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
  SUNNYSIDE...          MCHENRY...            LAKE CATHERINE...
  CHANNEL LAKE...       PISTAKEE HIGHLANDS... BULL VALLEY...
  MCCULLOM LAKE...      SPRING GROVE...       HUNTLEY...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
CHAIN O LAKES STATE PARK...COLLEGE OF LAKE COUNTY...GREAT LAKES NAVAL
TRAINING CENTER...HARPER COLLEGE...ILLINOIS BEACH STATE PARK...LAKE
COUNTY IL FAIRGROUNDS AND MCHENRY COUNTY COLLEGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. HEAVY RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND
POOR VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE
STORMS HAVE PASSED.

LAT...LON 4250 8780 4245 8779 4227 8782 4200 8765
      4212 8871 4250 8841
TIME...MOT...LOC 2319Z 285DEG 38KT 4262 8799 4221 8843

BEACHLER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
701 PM CDT TUE MAY 15 2012

ILZ005-006-012-014-160045-
COOK IL-KANE IL-LAKE IL-MCHENRY IL-
701 PM CDT TUE MAY 15 2012

...SPECIAL WEATHER STATEMENT...

AT 656 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM WINTHROP HARBOR TO EAST
DUNDEE...MOVING EAST AT 40 MPH.

WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
MODERATE DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
  INVERNESS...          LONG GROVE...         VERNON HILLS...
  KILDEER...            NORTH CHICAGO...      GREEN OAKS...
  FOREST LAKE...        BARRINGTON...         LAKE ZURICH...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
COLLEGE OF LAKE COUNTY...GREAT LAKES NAVAL TRAINING CENTER...HARPER
COLLEGE...LAKE COUNTY IL FAIRGROUNDS...LAKE FOREST COLLEGE...LOYOLA
UNIVERSITY AND NORTHEASTERN ILLINOIS UNIVERSITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. HEAVY RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND
POOR VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE
STORMS HAVE PASSED.

LAT...LON 4249 8779 4245 8779 4239 8780 4235 8782
      4231 8781 4227 8782 4214 8774 4208 8767
      4197 8764 4196 8763 4195 8763 4211 8853
      4250 8786 4250 8780
TIME...MOT...LOC 0001Z 292DEG 37KT 4244 8764 4204 8819

BEACHLER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
707 PM CDT TUE MAY 15 2012

ILZ005-011>014-160030-
COOK IL-DE KALB IL-DUPAGE IL-KANE IL-MCHENRY IL-
707 PM CDT TUE MAY 15 2012

...SPECIAL WEATHER STATEMENT...

AT 701 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR HAMPSHIRE...MOVING EAST AT 40 MPH.

WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
MODERATE DOWNPOURS...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  HAMPSHIRE...          GILBERTS...           SLEEPY HOLLOW...
  ELGIN...              WEST DUNDEE...        EAST DUNDEE...
  BARTLETT...           WAYNE...              STREAMWOOD...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
ELGIN COMMUNITY COLLEGE...HARPER COLLEGE...KANE COUNTY COUGARS
BALLPARK AND SCHAUMBURG BOOMERS BASEBALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. HEAVY RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND
POOR VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM
HAS PASSED.

LAT...LON 4208 8804 4183 8819 4202 8871 4217 8858
TIME...MOT...LOC 0007Z 289DEG 33KT 4207 8851

BEACHLER