Chicago Weather O'Hare Forecast Wednesday, April 1 2015 at 1:55:44 PM CT

NWS Forecast for: Amf Ohare IL
Issued by: National Weather Service Chicago, IL
Last Update: 12:21 pm CDT Apr 1, 2015

Hazardous Weather Outlook BELOW

This Afternoon: Sunny, with a high near 72. South wind around 15 mph, with gusts as high as 25 mph.

Tonight: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 55. South wind around 15 mph, with gusts as high as 30 mph.

Thursday: Showers and thunderstorms, mainly between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 67. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Mostly cloudy, with a low around 41. West wind 5 to 10 mph.


Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 45. North wind 10 to 15 mph, with gusts as high as 20 mph.

Friday Night: Partly cloudy, with a low around 28.

Saturday: Sunny, with a high near 50.

Saturday Night: A slight chance of rain. Partly cloudy, with a low around 35.

Sunday: A chance of rain. Partly sunny, with a high near 55.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 38.

Monday: A chance of showers. Mostly cloudy, with a high near 53.

Monday Night: A chance of rain and thunderstorms. Cloudy, with a low around 43.

Tuesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 58.


Amf Ohare IL
41.98°N 87.9°W

Visit your local NWS office at: http://www.crh.noaa.gov/lot


Hazardous Weather Outlook
Issued by NWS Chicago, IL

000
FLUS43 KLOT 011546
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1046 AM CDT WED APR 1 2015

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
021600-
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-
1046 AM CDT WED APR 1 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...ANY THAT OCCUR COULD PRODUCE...

HEAVY DOWNPOURS.
CLOUD TO GROUND LIGHTNING.

AREAS AFFECTED AND TIMING:

THERE IS A CHANCE FOR THUNDERSTORMS AFTER MIDNIGHT
TONIGHT...MAINLY IN NORTHWEST AND NORTH CENTRAL ILLINOIS.

DISCUSSION:

A COLD FRONTAL ZONE WILL APPROACH FROM THE WEST LATE
TONIGHT...COMBINING WITH AN UPPER DISTURBANCE TO PRODUCE AN AREA
OF SHOWERS OF THUNDERSTORMS OVER IOWA AND WISCONSIN THAT COULD
MOVE INTO PORTIONS OF MAINLY NORTH CENTRAL ILLINOIS AFTER
MIDNIGHT. ANY THUNDERSTORMS COULD BE ON A WEAKENING TREND AS
THEY MOVE INTO THE AREA...BUT MAY POSE A THREAT FOR BRIEF
MODERATE TO HEAVY DOWNPOURS AND CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS ARE LIKELY ON THURSDAY AREA WIDE. A FEW OF THE
STORMS THURSDAY COULD BECOME STRONG TO SEVERE SOUTH OF A GARY TO
PONTIAC LINE AND PRODUCE DAMAGING WIND GUSTS. HEAVY RAINFALL IS
ALSO POSSIBLE.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN NEXT MONDAY AND TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

$$

LMZ740>745-021600-
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-
1046 AM CDT WED APR 1 2015

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.

WINDS HAZARDOUS TO SMALL CRAFT ARE LIKELY THIS EVENING THROUGH
TONIGHT. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

WINDS HAZARDOUS TO SMALL CRAFT ARE LIKELY THROUGH THURSDAY
MORNING.

WINDS AND WAVES HAZARDOUS TO SMALL CRAFT ARE POSSIBLE ON FRIDAY
INTO FRIDAY NIGHT.

THUNDERSTORMS ARE LIKELY ON THURSDAY AND THERE IS A CHANCE OF
THUNDERSTORMS MONDAY NIGHT THROUGH TUESDAY.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-021600-
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-
1046 AM CDT WED APR 1 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS TONIGHT. A FEW GALE FORCE
GUSTS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY NIGHT THROUGH TUESDAY
ON THE SOUTHERN PORTION OF THE LAKE.

&&

$$

RODRIGUEZ




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