41°41'N / 87°47'W / Wysokość 188 m / 18:36 19.09.2026, America/Chicago (UTC-5)
Od: 19.09.2026, 15:57
Do: 20.09.2026, 00:00
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Boone, Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee, McHenry, Northern Cook, Northern Will, Ogle, Southern Cook and Winnebago and northwest Indiana, including the following areas, Lake IN and Porter. * WHEN...Through early Sunday morning. * 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, some with torrential rainfall with hourly rates around 2 inches per hour, are expected to redevelop across the watch area this evening and overnight. Repeated rounds of heavy rainfall may result in areas of flash flooding and rapid rises on area rivers. - http://www.weather.gov/safety/flood
Cook,Central 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
19.09.2026, 15:57
Od: 19.09.2026, 14:50
Do: 19.09.2026, 23:00
* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 7 to 10 ft expected. * WHERE...Northern Cook and Central Cook Counties. * WHEN...From Sunday morning through Tuesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
Cook,Central 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 IL19.09.2026, 14:50