000
FLUS43 KLOT 152109
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
409 PM CDT SAT JUN 15 2013

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162115-
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-
409 PM CDT SAT JUN 15 2013 /509 PM EDT SAT JUN 15 2013/

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

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

   THUNDERSTORMS...THE STRONGEST MAY PRODUCE:
   DAMAGING WINDS TO 60 MPH.
   HAIL TO THE SIZE OF QUARTERS.
   HEAVY RAIN...WHICH MAY LEAD TO FLASH FLOODING.
   FREQUENT CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  THOUGH THE ENTIRE AREA HAS A GOOD CHANCE OF OBSERVING SHOWERS AND
  THUNDERSTORMS THIS EVENING...THE BEST CHANCE FOR STRONG TO SEVERE
  THUNDERSTORMS IS EXPECTED TO BE WEST OF INTERSTATE 57 AND
  ALONG/SOUTH OF INTERSTATE 88. THUNDERSTORMS COULD AFFECT AREAS
  PRIMARILY ALONG AND WEST OF INTERSTATE 39 BY AS EARLY AS 6PM-
  7PM. THEN FOR THE CHICAGO AREA AND POINTS SOUTH AND SOUTHEAST IN
  THE 9PM TO 11PM TIMEFRAME...POSSIBLY AS EARLY AS 8PM FOR CHICAGO
  AND POINTS WEST.

  DISCUSSION:

  ROBUST THUNDERSTORM DEVELOPMENT IS EXPECTED TO BE TIED TO A
  MIDLEVEL DISTURBANCE OVER SOUTHWEST IOWA AS OF 4PM...THOUGH THERE
  COULD BE ISOLATED TO SCATTERED DEVELOPMENT OUT AHEAD OF IT. THE
  MIDLEVEL DISTURBANCE COULD INITIATE A COMPLEX OR CLUSTER OF
  THUNDERSTORMS OVER EAST OR SOUTHEAST IOWA THAT THEN MOVES EAST
  ACROSS THE AREA. GIVEN THE GREATER INSTABILITY PRESENT OVER
  NORTH CENTRAL ILLINOIS THAN POINTS EAST...THE HIGHER SEVERE
  THREAT PRIMARILY IN THE FORM OF DAMAGING WINDS SHOULD BE FOR
  THESE AREAS. ALSO CANNOT RULE OUT A MARGINAL THREAT FOR LARGE
  HAIL WITH STEEPENING MIDLEVEL LAPSE RATES AND INCREASING DEEP
  LAYER SHEAR. THOUGH POTENTIAL COMPLEX OF THUNDERSTORMS SHOULD BE
  ON A WEAKENING TREND INTO NORTHEAST ILLINOIS AND NORTHWEST
  INDIANA...OCCASIONAL TO FREQUENT CLOUD TO GROUND LIGHTNING AND
  GUSTY WINDS WILL STILL POSE HAZARDS FOR OUTDOOR EVENTS. GIVEN
  HIGH AMOUNTS OF AVAILABLE MOISTURE...ANY MORE INTENSE
  THUNDERSTORMS THIS EVENING THROUGH TONIGHT WILL POSE A THREAT
  FOR INTENSE RAINFALL RATES AND LOCALIZED FLASH FLOODING.

PORTIONS OF THE ILLINOIS AND KANKAKEE RIVERS WILL REMAIN IN
FLOOD...WITH PORTIONS OF THE IROQUOIS ABOVE BANK FULL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY INTO MONDAY.

PORTIONS OF THE ILLINOIS AND KANKAKEE RIVERS WILL REMAIN IN
FLOOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED TO BE ACTIVATED THIS EVENING.

&&

$$

LMZ740>745-162115-
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-
409 PM CDT SAT JUN 15 2013

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

.DAY ONE...TONIGHT.

STRONG THUNDERSTORMS ARE POSSIBLE THIS EVENING AND TONIGHT WITH
WIND GUSTS TO 50 KNOTS POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY INTO MONDAY AND AGAIN ON
FRIDAY.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-162115-
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-
409 PM CDT SAT JUN 15 2013

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

.DAY ONE...TONIGHT.

STRONG THUNDERSTORMS ARE POSSIBLE THIS EVENING AND TONIGHT...
PARTICULARLY ACROSS THE SOUTHERN HALF OF THE LAKE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS ALSO A CHANCE OF THUNDERSTORMS SUNDAY INTO MONDAY AND
PERIODIC CHANCES OF THUNDERSTORMS THURSDAY AND FRIDAY.

&&

$$

JEE/RC

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