Hazardous Weather Outlook
Issued by NWS Chicago, IL

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FLUS43 KLOT 061951
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
251 PM CDT SUN JUL 6 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
072000-
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-
251 PM CDT SUN JUL 6 2014 /351 PM EDT SUN JUL 6 2014/

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

.DAY ONE...THIS EVENING AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS...WHICH MAY PRODUCE:
   WINDS IN EXCESS OF 60 MPH.
   QUARTER SIZE HAIL.
   FREQUENT CLOUD TO GROUND LIGHTNING.
   TORRENTIAL DOWNPOURS.

  AREAS AFFECTED AND TIMING:

   THERE IS A SLIGHT CHANCE FOR THE DEVELOPMENT OF A FEW ISOLATED
   STORMS EARLY THIS EVENING. HOWEVER...THE MAIN FOCUS FOR SEVERE
   THUNDERSTORMS WILL SPREAD SOUTHEASTWARD ACROSS NORTHERN
   ILLINOIS AFTER 7 PM CDT AND CONTINUE ACROSS EAST CENTRAL
   ILLINOIS AND NORTHWESTERN INDIANA DURING THE LATE EVENING AND
   OVERNIGHT HOURS.

  DISCUSSION:

   A COLD FRONT WILL DROP SOUTHEASTWARD ACROSS SOUTHERN WISCONSIN
   EARLY THIS EVENING. THE AIRMASS TO THE SOUTH OF THIS FRONT IS
   EXPECTED TO BECOME VERY WARM AND MOIST...RESULTING IN UNSTABLE
   CONDITIONS ACROSS THE AREA. HOWEVER THE CHALLENGE REMAINS WITH
   TIMING...GIVEN THE DEVELOPMENT OF A WARM LAYER ALOFT THAT IS
   EXPECTED TO PERSIST THROUGH EARLY THIS EVENING. THIS WARM LAYER
   MAY LIMIT THE COVERAGE AND DEVELOPMENT OF ISOLATED STORMS UNTIL
   LATER THIS EVENING...OR LIMIT CONVECTION TO JUST AHEAD OF THE
   FRONTAL BOUNDARY. AS AN UPPER LEVEL DISTURBANCE APPROACHES THE
   AREA THIS EVENING...THUNDERSTORMS WILL DEVELOP
   ACROSS SOUTHERN WISCONSIN BY LATE THIS AFTERNOON. THE STORMS MAY
   THEN FORM INTO SOUTHEASTWARD MOVING LINES CAPABLE OF PRODUCING
   STRONG DAMAGING WINDS IN EXCESS OF 60 MPH ACROSS NORTHERN
   ILLINOIS INTO THIS EVENING. ALTHOUGH STRONG WINDS WILL BE THE
   PRIMARY SEVERE THREAT...THERE IS ALSO A SECONDARY THREAT FOR
   QUARTER SIZE HAIL.

   THESE STORMS  MAY CONTINUE TO BE SEVERE AS THEY MOVE ACROSS
   EAST CENTRAL ILLINOIS AND NORTHWESTERN INDIANA LATER IN THE
   EVENING AND OVERNIGHT. HOWEVER...THERE IS SOME QUESTION AS TO
   WHETHER OR NOT THEY WILL BEGIN WEAKENING PRIOR TO REACHING
   THESE AREAS. THEREFORE THE SEVERE THREAT IS MORE UNCERTAIN FOR
   AREAS TO THE SOUTHEAST OF THE CHICAGO METRO AREA. TORRENTIAL
   DOWNPOURS ARE EXPECTED WITH THESE STORMS...BUT DUE TO THE
   FAIRLY QUICK MOVEMENT...EXTREME RAINFALL AMOUNTS ARE UNLIKELY.

PORTIONS OF THE ILLINOIS RIVER WILL REMAIN IN FLOOD TODAY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS LATE MONDAY NIGHT
THROUGH WEDNESDAY AND AGAIN SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED AFTER 6 PM CDT ACROSS ALL OF NORTHERN ILLINOIS
AND NORTHWEST INDIANA.

&&

$$

LMZ740>745-072000-
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-
251 PM CDT SUN JUL 6 2014

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

.DAY ONE...THIS EVENING AND TONIGHT.

WINDS WILL BE HAZARDOUS TO SMALL CRAFT THROUGH LATE THIS
EVENING FOR THE ENTIRE NEARSHORE...AND THROUGH THE OVERNIGHT
FOR THE INDIANA NEARSHORE.

THUNDERSTORMS ARE LIKELY THIS EVENING. SOME OF THESE
STORMS COULD BE SEVERE AND PRODUCE WINDS IN EXCESS OF 50 KT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE ARE PERIODIC CHANCES OF THUNDERSTORMS LATE MONDAY NIGHT
THROUGH WEDNESDAY AND AGAIN SATURDAY.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-072000-
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-
251 PM CDT SUN JUL 6 2014

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

.DAY ONE...THIS EVENING AND TONIGHT.

THUNDERSTORMS ARE LIKELY THIS EVENING. SOME OF THESE
STORMS COULD BE SEVERE AND PRODUCE WINDS IN EXCESS OF 50 KT
ACROSS SOUTHERN LAKE MICHIGAN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE ARE PERIODIC CHANCES OF THUNDERSTORMS LATE MONDAY NIGHT
THROUGH WEDNESDAY AND AGAIN SATURDAY.

&&

$$

BEACHLER

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