42°5'北 / 87°56'西 / 高度 203 m / 04:21 2026-09-19, America/Chicago (UTC-5)
開始于: 2026-09-19, 04:00
到: 2026-09-19, 11:45
* 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
Cook,Northern 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
2026-09-19, 03:39
開始于: 2026-09-19, 03:30
到: 2026-09-19, 11:30
* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 feet expected. * WHERE...Northern Cook and Central Cook Counties. * WHEN...Until 3 PM CDT this afternoon. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
Cook,Northern 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 IL2026-09-19, 03:30