Weather Alerts For Chapel Hill, IL

# HEADLINE -------------------- FLOOD ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING # DETAILS -------------------- WHAT Flooding caused by excessive rainfall continues. WHERE Boone County in north central Illinois... Winnebago County in north central Illinois... Lake IL County in northeastern Illinois... McHenry County in northeastern Illinois... WHEN Until 900 AM CDT. IMPACTS Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. ADDITIONAL DETAILS - At 657 AM CDT, Doppler radar indicated heavy rain due to thunderstorms earlier this morning, with additional steady rain and embedded thunderstorms currently over or near the area. Minor flooding is expected to continue in the advisory area. - Additional rainfall amounts up to 1 inch are possible over the area. This additional rain will result in minor flooding. - SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE - Rockford, Waukegan, Buffalo Grove, Crystal Lake, Wheeling, North Chicago, Gurnee, Mundelein, Algonquin, Highland Park, Lake in the Hills, Round Lake Beach, McHenry, Belvidere, Vernon Hills, Woodstock, Zion, Huntley, Loves Park, Machesney Park, Grayslake and Libertyville. - http://www.weather.gov/safety/flood ISSUED AT Saturday, September 19, 2026 at 6:59 AM CDT ISSUED BY National Weather Service Chicago IL HEADER Flood Advisory # 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. # AREAS AFFECTED -------------------- Boone IL, Lake IL, McHenry IL, Winnebago IL

# HEADLINE -------------------- FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall continues to be possible. WHERE Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee, Northern Cook, Northern Will and Southern Cook and northwest Indiana, including the following areas, Lake IN and Porter. WHEN Until 1 PM CDT this afternoon. IMPACTS Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. ADDITIONAL DETAILS - Showers and thunderstorms will produce heavy rain this morning which may cause localized flash flooding. Additional showers and thunderstorms may produce heavy rain and localized flash flooding tonight when another flood watch for flash flooding may be needed. - http://www.weather.gov/safety/flood ISSUED AT Saturday, September 19, 2026 at 3:39 AM CDT ISSUED BY National Weather Service Chicago IL HEADER Flood Watch # 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. # AREAS AFFECTED -------------------- Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lake IN, Lee, Northern Cook, Northern Will, Porter, Southern Cook Including the cities of Wheaton, Cicero, Merrillville, Orland Park, Gary, Downers Grove, Mokena, Plainfield, Hammond, Sycamore, DeKalb, Calumet City, Schaumburg, La Grange, Oak Park, Buffalo Grove, Northbrook, Waukegan, Dixon, Aurora, Oak Forest, Gurnee, Park Forest, Palatine, Carol Stream, Valparaiso, Mundelein, Lombard, Chesterton, Evanston, Yorkville, Bolingbrook, Portage, Elgin, Oak Lawn, Chicago, Plano, Des Plaines, Lemont, Naperville, Joliet, and Oswego

# HEADLINE -------------------- BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING # DETAILS -------------------- WHAT High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 feet expected. WHERE Lake County IL. WHEN Through this evening. IMPACTS Swimming conditions will be life threatening, especially for inexperienced swimmers. ISSUED AT Saturday, September 19, 2026 at 3:30 AM CDT ISSUED BY National Weather Service Chicago IL HEADER Coastal Hazard Message # 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. # AREAS AFFECTED -------------------- Lake IL