Weather Alerts-

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Chicago - IL, US, National Weather Service

Wilmette Harbor to Northerly Island IL

SEVERE THUNDERSTORM WATCH 35 REMAINS VALID UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE

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Chicago - IL, US, National Weather Service

Wilmette Harbor to Northerly Island IL

The National Weather Service in Chicago has issued a Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... Until 1030 PM CDT. At 904 PM CDT, strong thunderstorms were located along a line extending from near Montrose Harbor to 6 nm south of Midway Airport, moving northeast at 35 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, and Belmont Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1100 PM CDT for northwestern Indiana. Move to safe harbor until hazardous weather passes. HAIL...<.75IN; WIND...40KTS

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Chicago - IL, US, National Weather Service

A portion of northeast Illinois, including the following counties, Cook, DuPage, Kane, Kendall and Will

...FLOOD ADVISORY IN EFFECT UNTIL 130 AM CDT WEDNESDAY... WHAT...Flooding caused by excessive rainfall is expected. WHERE...A portion of northeast Illinois, including the following counties, Cook, DuPage, Kane, Kendall and Will. WHEN...Until 130 AM CDT. IMPACTS...Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. ADDITIONAL DETAILS... - At 836 PM CDT, Doppler radar indicated multiple rounds of heavy rainfall with rates up to 1 to 2 inches per hour moving into the central and southern Chicago Metropolitan Area. Flooding of roadways and rises on creeks may occur shortly after the onset of rainfall. - Some locations that will experience flooding include... Chicago, Aurora, Joliet, Naperville, Cicero, Hammond, Bolingbrook, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Carol Stream, Romeoville, Plainfield and Calumet City. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.

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Chicago - IL, US, National Weather Service

Portions of Illinois, including the following counties, Central Cook, DuPage, Eastern Will, Grundy, Kane, Kankakee, Kendall, La Salle, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following counties, Lake IN and Porter

...FLOOD WATCH REMAINS IN EFFECT UNTIL 3 AM CDT WEDNESDAY... WHAT...Flash flooding caused by excessive rainfall continues to be possible. WHERE...Portions of Illinois, including the following counties, Central Cook, DuPage, Eastern Will, Grundy, Kane, Kankakee, Kendall, La Salle, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following counties, Lake IN and Porter. WHEN...Until 3 AM CDT Wednesday. IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded ADDITIONAL DETAILS... - Multiple rounds of showers and thunderstorms with rainfall rates up to 1 to 2 inches per hour will be possible this evening until later tonight. The highest chance for flooding will be in urban areas and locations that received heavy rainfall over the last several days. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.

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Chicago - IL, US, National Weather Service

Wilmette Harbor to Northerly Island IL

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... ...DENSE FOG ADVISORY IS CANCELLED... WHAT...Northwest winds to 30 kt and significant waves to 6 ft occasionally to 8 ft. WHERE...Wilmette Harbor to Northerly Island IL. WHEN...Until 4 AM CDT Thursday. IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. ADDITIONAL DETAILS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

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Chicago - IL, US, National Weather Service

Wilmette Harbor to Northerly Island IL

...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 842 PM CDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots and small hail. These thunderstorms were located along a line extending from near Ohare Airport to 11 nm south of Joliet, moving northeast at 30 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1100 PM CDT for northwestern Indiana. Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.