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000
FLUS43 KLOT 211655
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1155 AM CDT TUE MAY 21 2013

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
221700-
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-
1155 AM CDT TUE MAY 21 2013 /1255 PM EDT TUE MAY 21 2013/

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 COULD PRODUCE:
    HAIL TO THE SIZE OF DIMES.
    WIND GUSTS TO 50 MPH.
    FREQUENT CLOUD TO GROUND LIGHTNING.
    HEAVY RAIN.

  AREAS AFFECTED AND TIMING:

  COMPARED TO EARLIER THINKING...THE SEVERE WEATHER THREAT HAS
  DECREASED ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA.
  SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED...ESPECIALLY THIS
  EVENING AND OVERNIGHT...AND A FEW COULD PRODUCE SMALL HAIL AND
  GUSTY WINDS ALONG WITH LOCALLY HEAVY RAIN...PRIMARILY IN
  NORTHWEST INDIANA.

  DISCUSSION:

  THE BEST CHANCE FOR SHOWERS AND THUNDERSTORMS APPEARS TO BE THIS
  EVENING INTO TONIGHT AHEAD OF AN APPROACHING COLD FRONT. THIS IS
  NOT AN OPTIMAL TIME FOR SURFACE BASED INSTABILITY...AND DEEP
  LAYER SHEAR ALSO DOES NOT APPEAR FAVORABLE FOR ORGANIZED
  CONVECTION DURING THAT TIME PERIOD. HEAVY RAINFALL AND LOCALIZED
  FLOODING STILL ARE A POSSIBILITY.

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

SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE WEDNESDAY AND
AGAIN SATURDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

$$

LMZ740>745-221700-
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-
1155 AM CDT TUE MAY 21 2013

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 WILL LEAD TO HAZARDOUS CONDITIONS FOR SMALL CRAFT.

SCATTERED THUNDERSTORMS ARE LIKELY TONIGHT WITH THE POTENTIAL FOR
A FEW OF THESE TO PRODUCE WIND GUSTS GREATER THAN 35 KNOTS AND
SMALL HAIL.

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

SCATTERED THUNDERSTORMS WILL BE POSSIBLE THROUGH WEDNESDAY.

STRONG WINDS AND HIGH WAVES MAY CREATE HAZARDOUS CONDITIONS FOR
SMALL CRAFT THURSDAY THROUGH FRIDAY. OCCASIONAL GALE FORCE
GUSTS ARE POSSIBLE THURSDAY.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-221700-
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-
1155 AM CDT TUE MAY 21 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS ARE LIKELY...MAINLY TONIGHT...WITH THE POTENTIAL
FOR A FEW OF THESE TO PRODUCE WIND GUSTS GREATER THAN 35 KNOTS AND
SMALL HAIL.

PATCHY DENSE FOG WILL BE POSSIBLE ACROSS THE ENTIRE LAKE.

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

SCATTERED THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY. ADDITIONAL
THUNDERSTORMS ARE POSSIBLE SATURDAY THROUGH MONDAY.

AREAS OF DENSE FOG WILL BE POSSIBLE THROUGH WEDNESDAY ACROSS THE
ENTIRE LAKE.

GALE FORCE WINDS MAY BE POSSIBLE THURSDAY...MAINLY FOR THE
CENTRAL AND SOUTHERN PORTIONS OF THE LAKE.

&&

$$

LENNING/JEE

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