Active Weather Alerts
Marine Weather Statement
Issued: 12:12 PM Jul. 30, 2025 – National Weather Service
A Marine Weather Statement has been issued for the following areas... Nearshore Waters from Winthrop Harbor to Northerly Island... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 711 AM CDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 25 to 30 knots. These thunderstorms were located along a line extending from 11 nm northwest of McHenry to 9 nm west of Elgin to 14 nm west of Aurora, moving east at 20 knots. Locations impacted include... Harrison-Dever Crib, Belmont Harbor, Wilmette Harbor, Winthrop Harbor, Montrose Harbor, Monroe Harbor, Diversy Harbor, Waukegan Harbor, and DuSable Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 25 to 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. &&
Beach Hazard Statement
Issued: 9:27 AM Jul. 30, 2025 – National Weather Service
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH FRIDAY AFTERNOON... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 5 to 9 feet expected. * WHERE...In Illinois, Lake, Northern Cook and Central Cook Counties. In Indiana, Lake and Porter Counties. * WHEN...From Wednesday afternoon through Friday afternoon. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. &&
Small Craft Advisory
Issued: 9:20 AM Jul. 30, 2025 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt and significant waves to 9 ft occasionally to 12 ft expected. Occasional gale gusts to 35 kt possible tonight. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM Wednesday to 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Flood Watch
Issued: 8:19 AM Jul. 30, 2025 – National Weather Service
...FLOOD WATCH IN EFFECT FROM 1 PM CDT /2 PM EDT/ THIS AFTERNOON THROUGH THURSDAY AFTERNOON... * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, Boone, Central Cook, De Kalb, DuPage, Eastern Will, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, La Salle, Lake IL, Lee, Livingston, McHenry, Northern Cook, Northern Will, Ogle, Southern Cook, Southern Will and Winnebago and northwest Indiana, including the following areas, Benton, Jasper, Lake IN, Newton and Porter. * WHEN...From 1 PM CDT /2 PM EDT/ this afternoon through Thursday afternoon. * IMPACTS...Flooding may occur in poor drainage and urban areas. Rises on area creeks and rivers are likely. * ADDITIONAL DETAILS... - Several rounds of locally heavy rainfall from thunderstorms are expected today through Thursday morning. Each round may produce 1 to 2 inches of rainfall, though locally higher amounts are possible. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means flooding is possible, but not yet certain, based upon the latest forecasts. 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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