Hazardous Weather Outlook
Issued by NWS Chicago, IL

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000
FLUS43 KLOT 260917
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
417 AM CDT TUE AUG 26 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
270930-
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-
417 AM CDT TUE AUG 26 2014 /517 AM EDT TUE AUG 26 2014/

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

.DAY ONE...TODAY AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS WHICH MAY PRODUCE...
   TORRENTIAL RAINFALL AND FLASH FLOODING.
   WIND GUSTS IN EXCESS OF 50 MPH.
   FREQUENT CLOUD TO GROUND LIGHTNING.
   SMALL HAIL.

  AREAS AFFECTED AND TIMING:

  THUNDERSTORMS ARE POSSIBLE THROUGHOUT THE DAY ACROSS THE OUTLOOK
  AREA. CHANCES WILL DIMINISH ACROSS FAR NORTHERN ILLINOIS LATER
  THIS AFTERNOON. THUNDERSTORM CHANCES WILL AGAIN INCREASE FROM
  WEST TO EAST LATER TONIGHT.

  DISCUSSION:

  A COLD FRONT WILL MOVE SOUTHWARD ACROSS THE OUTLOOK AREA TODAY
  BUT WILL LIKELY SLOW DOWN AS IT REACHES THE INTERSTATE 80
  CORRIDOR. THE FRONT...ALONG WITH SEVERAL OTHER UPPER LEVEL
  FEATURES...WILL DRIVE THUNDERSTORM DEVELOPMENT THROUGH THE DAY.
  STORMS CURRENTLY ONGOING ACROSS EASTERN IOWA AND NORTHWEST
  ILLINOIS EARLY THIS MORNING WILL MOVE EASTWARD INTO THE OUTLOOK
  AREA THROUGH MID MORNING. AN ADDITIONAL COMPLEX OF STORMS ACROSS
  CENTRAL AND WESTERN IOWA IS EXPECTED TO AFFECT THE AREA LATER
  THIS MORNING AND EARLY THIS AFTERNOON BUT IT IS UNCLEAR HOW WELL
  THIS WILL HOLD TOGETHER BY THAT TIME. SHOULD IT WEAKEN OR EVEN
  DISSIPATE...ISOLATED TO SCATTERED THUNDERSTORMS ARE STILL
  EXPECTED ACROSS THE AREA INTO THE AFTERNOON. THE FRONT WILL
  SLOWLY SAG SOUTH LATER THIS AFTERNOON HELPING TO END
  THUNDERSTORM CHANCES ACROSS FAR NORTHERN ILLINOIS.

  ADDITIONAL THUNDERSTORMS ARE EXPECTED TO AFFECT THE AREA LATER
  TONIGHT. TORRENTIAL RAINFALL AND FLASH FLOODING WILL BE POSSIBLE
  WITH THE STORMS THROUGH TONIGHT. GUSTY STRAIGHT LINE WINDS ARE
  AN ADDITIONAL THREAT WITH A FEW WIND GUSTS REACHING SEVERE
  LEVELS NOT OUT OF THE QUESTION BUT THE SEVERE THREAT IS LOW.

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

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY THROUGH MONDAY. HEAVY
RAIN AND FLASH FLOODING WILL BE POSSIBLE WITH ANY THUNDERSTORMS
THAT DEVELOP...ESPECIALLY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED TODAY.

&&

$$

LMZ740>745-270930-
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-
417 AM CDT TUE AUG 26 2014

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

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS...SOME OF WHICH MAY PRODUCE
WIND GUSTS IN EXCESS OF 40 KNOTS.

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

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY THROUGH MONDAY.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-270930-
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-
417 AM CDT TUE AUG 26 2014

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

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS WITH THE BEST CHANCE ACROSS
SOUTHERN LAKE MICHIGAN. SOME THUNDERSTORMS MAY PRODUCE GUSTS IN
EXCESS OF 40 KNOTS.

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

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY THROUGH MONDAY.

&&

$$

MDB

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