Chicago Weather O'Hare Forecast Wednesday, September 7 2016 at 5:54:46 PM CT

NWS Forecast for: Amf Ohare IL
Issued by: National Weather Service Chicago, IL
Last Update: 5:17 pm CDT Sep 7, 2016


Hazardous Weather Outlook Below

This Afternoon: A 30 percent chance of showers and thunderstorms. Cloudy, with a high near 89. Heat index values as high as 96. Southwest wind around 15 mph, with gusts as high as 20 mph.

Tonight: Showers and thunderstorms, mainly before 3am. Some of the storms could produce heavy rain. Low around 74. Southwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Thursday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 85. West wind around 10 mph, with gusts as high as 15 mph.

Thursday Night: Partly cloudy, with a low around 66. West northwest wind around 5 mph becoming northeast after midnight.

Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81. East southeast wind 5 to 10 mph becoming south in the afternoon.

Friday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

Saturday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75. Breezy.

Saturday Night: Mostly clear, with a low around 56.

Sunday: Sunny, with a high near 74.

Sunday Night: Mostly clear, with a low around 57.

Monday: Sunny, with a high near 77.

Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.

Tuesday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 76.

Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

Wednesday: A slight chance of showers. Mostly sunny, with a high near 71.


Amf Ohare IL
41.98°N 87.9°W

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
354 PM CDT WED SEP 7 2016

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
082100-
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-
354 PM CDT WED SEP 7 2016 /454 PM EDT WED SEP 7 2016/

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

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LIMITED TORNADO RISK.
ELEVATED THUNDERSTORM WIND DAMAGE RISK...UP TO 60 MPH.
SIGNIFICANT FLOODING RISK.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

THUNDERSTORMS WILL SHIFT EASTWARD ACROSS NORTHERN ILLINOIS
LATE THIS AFTERNOON AND INTO THIS EVENING. THESE STORMS WILL BE
CAPABLE OF PRODUCING DAMAGING WIND GUSTS UP TO 60 MPH AND VERY
HEAVY RAINFALL. THUNDERSTORMS MAY CONTINUE INTO TONIGHT ACROSS
PORTIONS OF THE AREA...POSSIBLY TRAINING OVER THE SAME AREAS AS
PREVIOUS STORMS. THIS MAY RESULT IN AREAS OF FLASH FLOODING.

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

THURSDAY...
LIMITED THUNDERSTORM RISK.
FRIDAY...
ELEVATED FLOODING RISK.
LIMITED SEVERE THUNDERSTORM RISK.
SATURDAY...
LIMITED THUNDERSTORM RISK.
HIGH SWIM RISK.
MONDAY AND TUESDAY...
LIMITED THUNDERSTORM RISK.


.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION CANNOT BE RULED OUT LATE THIS AFTERNOON AND
EVENING. IN ADDITION...RAINFALL REPORTS ARE APPRECIATED.

GENERAL STORM MOTION OF THE DAY:

MOVING TO THE EAST AT 30 TO 35 MPH TONIGHT.

&&

$$

LMZ740>745-082100-
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-
354 PM CDT WED SEP 7 2016

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

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE EXPECTED TONIGHT. SOME THUNDERSTORMS MAY
PRODUCE BRIEF GUSTS OF 40 KNOTS OR HIGHER.

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

THERE IS A CHANCE OF THUNDERSTORMS THURSDAY MORNING ACROSS THE
INDIANA NEARSHORE. THUNDERSTORM CHANCES RETURN FRIDAY AND FRIDAY
NIGHT INTO EARLY SATURDAY...AND THEN AGAIN TUESDAY.

WINDS AND WAVES MAY BECOME HAZARDOUS TO SMALL CRAFT ON SATURDAY
AND SATURDAY NIGHT.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-082100-
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-
354 PM CDT WED SEP 7 2016

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

.DAY ONE...TONIGHT.

PERIODS OF THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE LAKE.
SOME OF THESE MAY PRODUCE GUSTS OF 40 KNOTS OR GREATER.

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

THUNDERSTORM CHANCES RETURN FRIDAY AFTERNOON AND NIGHT INTO
EARLY SATURDAY...AND THEN AGAIN TUESDAY.

&&

$$

KJB

WEATHER.GOV/CHICAGO

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