Weather Alerts-

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Chicago - IL, US, National Weather Service

Northerly Island to Calumet Harbor IL

The National Weather Service in Chicago has issued a Special Marine Warning for... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... Until 1230 AM CDT. At 1034 PM CDT, strong to severe thunderstorms were located along a line from Schaumburg to Morris, Illinois, moving east northeast at 40 knots. HAZARD...Wind gusts 34 knots or greater and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Harrison-Dever Crib, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, Marina Shores at Dune Harbor, and 59th Street Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1100 PM CDT for northwestern Indiana. HAIL...>.75IN; WIND...>34KTS

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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 REMAINS IN EFFECT UNTIL 130 AM CDT WEDNESDAY... WHAT...Flooding caused by excessive rainfall continues. WHERE...A portion of northeast Illinois, including the following counties, Cook, DuPage, Kane, Kendall and Will. WHEN...Until 130 AM CDT. 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... - At 1053 PM CDT, Doppler radar indicated another round of heavy rainfall moving into the area with rainfall rates up to 1 inch per hour. Up to 1.5 inches have occurred over the last several hours. 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

Northerly Island to Calumet Harbor IL and Calumet Harbor IL to Gary IN

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 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 expected. WHERE...Northerly Island to Calumet Harbor IL and Calumet Harbor IL to Gary IN. WHEN...From 10 AM Wednesday to 4 AM CDT Thursday. IMPACTS...Conditions will be hazardous to small craft. 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.