Alert archive / Illinois / River Flood Warnings / 2026

River Flood Warnings in Illinois, April 2026

92 river flood warnings in April 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of river flood warnings reaches back to 2005.

River Flood Warnings by county

Each county as a circle sized by its count in April 2026. Tap one for its archive.

River Flood Warnings
92
Busiest day
April 16, 202618 river flood warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Apr 2, 10:03 AM CDTRiver Flood WarningDVNHancock, McDonough60 hr
Apr 2, 11:13 AM CDTRiver Flood WarningINDClark, Crawford9 days
Apr 2, 11:13 AM CDTRiver Flood WarningINDCrawford, Lawrence11 days
Apr 3, 12:58 AM CDTRiver Flood WarningLOTLaSalle45 hr
Apr 3, 11:14 AM CDTRiver Flood WarningINDCrawford, Lawrence10 days
Apr 3, 11:43 AM CDTRiver Flood WarningMKXLake6 days
Apr 3, 11:58 AM CDTRiver Flood WarningLOTBureau, LaSalle, Putnam7 days
Apr 3, 3:01 PM CDTRiver Flood WarningLOTWinnebago3 days
Apr 3, 9:17 PM CDTRiver Flood WarningLOTLake8 days
Apr 3, 10:12 PM CDTRiver Flood WarningLOTLaSalle4 days
Apr 3, 11:42 PM CDTRiver Flood WarningILXMcLean, Tazewell, Woodford12 hr
Apr 3, 11:52 PM CDTRiver Flood WarningILXBrown, Cass, Morgan, Schuyler39 days
Apr 3, 11:53 PM CDTRiver Flood WarningILXCass, Fulton, Mason38 days
Apr 3, 11:55 PM CDTRiver Flood WarningILXPeoria, Tazewell, Woodford21 days
Apr 3, 11:56 PM CDTRiver Flood WarningILXMarshall, Putnam60 hr
Apr 4, 6:37 AM CDTRiver Flood WarningLOTCook24 hr
Apr 4, 10:15 AM CDTRiver Flood WarningDVNHenry, Rock Island, Whiteside4 days
Apr 4, 10:15 AM CDTRiver Flood WarningDVNHenry, Rock Island4 days
Apr 4, 11:29 AM CDTRiver Flood WarningLOTLake8 days
Apr 4, 2:30 PM CDTRiver Flood WarningLOTBoone, Winnebago23 hr
Apr 4, 7:26 PM CDTRiver Flood WarningLSXFayette16 hr
Apr 6, 8:23 PM CDTRiver Flood WarningLOTCook, Lake61 hr
Apr 6, 8:26 PM CDTRiver Flood WarningLOTKane, Lake, McHenry28 days
Apr 9, 11:56 AM CDTRiver Flood WarningLSXPike24 days
Apr 9, 11:56 AM CDTRiver Flood WarningLSXCalhoun24 days
Apr 11, 11:19 AM CDTRiver Flood WarningDVNHancock, Henderson20 days
Apr 11, 11:19 AM CDTRiver Flood WarningDVNHenderson20 days
Apr 11, 11:33 AM CDTRiver Flood WarningLSXPike21 days
Apr 13, 11:50 AM CDTRiver Flood WarningLSXCalhoun20 days
Apr 14, 8:57 AM CDTRiver Flood WarningLSXPike18 days
Apr 15, 4:22 AM CDTRiver Flood WarningLOTLake11 days
Apr 15, 6:19 AM CDTRiver Flood WarningLOTLake10 days
Apr 15, 10:32 AM CDTRiver Flood WarningLOTCook10 days
Apr 15, 10:32 AM CDTRiver Flood WarningLOTCook, Lake10 days
Apr 15, 10:43 AM CDTRiver Flood WarningLOTKane, Kendall11 hr
Apr 15, 10:50 AM CDTRiver Flood WarningMKXLake15 days
Apr 15, 12:31 PM CDTRiver Flood WarningDVNStephenson8 hr
Apr 15, 10:46 PM CDTRiver Flood WarningMKXWinnebago44 hr
Apr 15, 11:23 PM CDTRiver Flood WarningMKXWinnebago5 days
Apr 16, 3:29 AM CDTRiver Flood WarningLOTKane, Kendall13 days
Apr 16, 7:30 AM CDTRiver Flood WarningLOTBoone, Winnebago3 days
Apr 16, 7:58 AM CDTRiver Flood WarningLOTWinnebago14 days
Apr 16, 10:43 AM CDTRiver Flood WarningDVNHenry, Rock Island, Whiteside16 days
Apr 16, 10:43 AM CDTRiver Flood WarningDVNHenry, Rock Island21 days
Apr 16, 10:43 AM CDTRiver Flood WarningDVNWhiteside6 days
Apr 16, 11:01 AM CDTRiver Flood WarningLOTWinnebago13 days
Apr 16, 11:17 AM CDTRiver Flood WarningLOTOgle21 days
Apr 16, 11:24 AM CDTRiver Flood WarningLOTWinnebago4 days
Apr 16, 11:29 AM CDTRiver Flood WarningLOTWinnebago10 days
Apr 16, 11:30 AM CDTRiver Flood WarningDVNHenderson, Mercer21 days
Apr 16, 11:30 AM CDTRiver Flood WarningDVNMercer21 days
Apr 16, 11:30 AM CDTRiver Flood WarningDVNHancock21 days
Apr 16, 11:30 AM CDTRiver Flood WarningDVNMercer, Rock Island12 days
Apr 16, 11:54 AM CDTRiver Flood WarningLSXCalhoun, Greene, Jersey21 days
Apr 16, 12:25 PM CDTRiver Flood WarningMKXWinnebago21 days
Apr 17, 10:15 AM CDTRiver Flood WarningDVNStephenson6 days
Apr 17, 11:21 AM CDTRiver Flood WarningDVNRock Island10 days
Apr 17, 11:21 AM CDTRiver Flood WarningDVNRock Island21 days
Apr 17, 1:46 PM CDTRiver Flood WarningLOTBureau, LaSalle, Putnam6 days
Apr 17, 10:02 PM CDTRiver Flood WarningLSXAdams12 days
Apr 17, 10:12 PM CDTRiver Flood WarningMKXWinnebago24 hr
Apr 17, 10:59 PM CDTRiver Flood WarningLOTCook22 hr
Apr 18, 5:44 AM CDTRiver Flood WarningLOTLaSalle15 hr
Apr 18, 5:50 AM CDTRiver Flood WarningDVNHancock, McDonough70 hr
Apr 18, 12:05 PM CDTRiver Flood WarningLSXAdams21 days
Apr 18, 12:05 PM CDTRiver Flood WarningLSXAdams9 hr
Apr 18, 12:41 PM CDTRiver Flood WarningLOTLaSalle23 hr
Apr 19, 11:38 AM CDTRiver Flood WarningLSXJersey21 days
Apr 19, 7:54 PM CDTRiver Flood WarningLSXJackson, Randolph6 days
Apr 19, 8:17 PM CDTRiver Flood WarningILXPeoria, Tazewell, Woodford6 days
Apr 19, 10:02 PM CDTRiver Flood WarningLOTLee, Ogle20 hr
Apr 20, 1:05 PM CDTRiver Flood WarningDVNHancock, McDonough7 hr
Apr 27, 9:52 AM CDTRiver Flood WarningILXClay, Richland14 days
Apr 27, 2:58 PM CDTRiver Flood WarningPAHAlexander, Jackson, Union8 days
Apr 27, 3:05 PM CDTRiver Flood WarningLSXJackson, Randolph8 days
Apr 27, 3:13 PM CDTRiver Flood WarningLSXPike, Scott9 days
Apr 27, 3:16 PM CDTRiver Flood WarningLSXFayette4 days
Apr 27, 9:48 PM CDTRiver Flood WarningILXLawrence7 days
Apr 27, 10:37 PM CDTRiver Flood WarningLSXAdams37 hr
Apr 27, 10:37 PM CDTRiver Flood WarningLSXAdams56 hr
Apr 27, 10:52 PM CDTRiver Flood WarningINDCrawford, Lawrence6 days
Apr 28, 10:33 AM CDTRiver Flood WarningINDCrawford, Lawrence6 days
Apr 28, 10:33 AM CDTRiver Flood WarningINDClark, Crawford4 days
Apr 28, 11:25 AM CDTRiver Flood WarningLSXBrown25 hr
Apr 28, 11:25 AM CDTRiver Flood WarningLSXMorgan, Pike4 days
Apr 28, 11:26 AM CDTRiver Flood WarningPAHGallatin, Wabash, White8 days
Apr 28, 11:38 AM CDTRiver Flood WarningLSXMadison6 days
Apr 28, 11:38 AM CDTRiver Flood WarningLSXMonroe4 days
Apr 28, 11:38 AM CDTRiver Flood WarningLSXMadison5 days
Apr 28, 11:38 AM CDTRiver Flood WarningLSXSaint Clair5 days
Apr 28, 11:52 AM CDTRiver Flood WarningPAHAlexander6 days
Apr 30, 11:30 AM CDTRiver Flood WarningINDEdwards, Gallatin, Wabash, White5 days

By county

Every county with at least one alert. A county page lists each alert that covered it.

14 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.