41°38'북 / 87°42'서 / 고도 182 m / 12:06 2026.09.20, America/Chicago (UTC-5)
부터: 2026.09.20, 10:17
에게: 2026.09.20, 13:00
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kankakee, Kendall, La Salle, Lee, Northern Cook, Northern Will, Ogle, Southern Cook and Southern Will 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. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - The threat for widespread heavy rainfall is ending. However, continued moderate to isolated heavy rainfall may lead to a continued localized flood threat. - http://www.weather.gov/safety/flood
Cook,Southern Cook
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.
NWS Chicago IL
2026.09.20, 10:17
부터: 2026.09.20, 10:23
에게: 2026.09.20, 18:30
* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 7 to 10 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Tuesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
CookRemain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.NWS Chicago IL2026.09.20, 10:23