Alert archive / Illinois / Flood Watches

Flood Watches in Illinois, 2024

43 flood watches in 2024. 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 flood watches reaches back to 2005.

Flood Watches by county

Each county as a circle sized by its count in 2024. Tap one for its archive.

Flood Watches: 43
Busiest month: July20 flood watches
Busiest day: July 15, 20245 flood watches

Over time

By month

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.

Issued	Product	Office	Counties	Lasted
Jan 23, 12:57 PM CST	Flood Watch	PAH	Alexander, Johnson, Massac, Pope, Pulaski, Union	15 hr
Jan 23, 2:04 PM CST	Flood Watch	LOT	Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more	4 days
Jan 30, 10:22 AM CST	Flood Watch	DVN	Henry, Rock Island, Whiteside	11 min
Apr 1, 10:24 AM CDT	Flood Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 22 more	20 hr
Apr 1, 11:14 AM CDT	Flood Watch	LSX	Bond, Calhoun, Fayette, Greene, Jersey, Macoupin and 2 more	17 hr
Apr 1, 8:10 PM CDT	Flood Watch	LOT	Ford, Iroquois	5 hr
Apr 27, 1:12 PM CDT	Flood Watch	DVN	Hancock, Henderson, McDonough, Warren	13 hr
Apr 27, 1:18 PM CDT	Flood Watch	LSX	Adams	12 hr
Apr 27, 2:04 PM CDT	Flood Watch	ILX	Fulton, Knox, Marshall, Mason, Peoria, Schuyler and 3 more	16 hr
May 8, 12:01 AM CDT	Flood Watch	PAH	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more	25 hr
May 8, 3:01 AM CDT	Flood Watch	LSX	Monroe, Randolph, Saint Clair	19 hr
May 16, 2:15 PM CDT	Flood Watch	PAH	Alexander, Johnson, Massac, Pope, Pulaski, Union	20 hr
May 25, 1:38 PM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	34 hr
May 25, 2:06 PM CDT	Flood Watch	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more	32 hr
May 25, 2:15 PM CDT	Flood Watch	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 15 more	32 hr
Jun 13, 8:15 PM CDT	Flood Watch	LOT	Ford, Iroquois, Livingston	4 hr
Jun 21, 8:39 PM CDT	Flood Watch	DVN	Jo Daviess, Stephenson	25 hr
Jun 22, 7:37 PM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more	5 hr
Jun 25, 11:10 AM CDT	Flood Watch	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more	15 hr
Jun 25, 4:52 PM CDT	Flood Watch	LOT	Boone, DeKalb, Grundy, Kane, Kendall, LaSalle and 4 more	4 hr
Jul 2, 2:04 AM CDT	Flood Watch	DVN	Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 5 more	23 hr
Jul 2, 2:26 PM CDT	Flood Watch	LSX	Adams	12 hr
Jul 3, 1:53 PM CDT	Flood Watch	PAH	Edwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 6 more	42 hr
Jul 3, 2:23 PM CDT	Flood Watch	LSX	Monroe, Randolph, Saint Clair, Washington	37 hr
Jul 8, 1:52 AM CDT	Flood Watch	ILX	Champaign, Christian, Clark, Clay, Coles, Crawford and 16 more	51 hr
Jul 8, 2:24 AM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	40 hr
Jul 8, 2:37 AM CDT	Flood Watch	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more	48 hr
Jul 9, 2:20 AM CDT	Flood Watch	LOT	Cook, DuPage, Ford, Grundy, Iroquois, Kankakee and 2 more	30 hr
Jul 14, 2:19 AM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more	9 hr
Jul 14, 3:03 PM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more	11 hr
Jul 15, 12:52 PM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	14 hr
Jul 15, 2:10 PM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	40 hr
Jul 15, 2:22 PM CDT	Flood Watch	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Stephenson and 1 more	8 hr
Jul 15, 2:47 PM CDT	Flood Watch	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 20 more	16 hr
Jul 15, 2:47 PM CDT	Flood Watch	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	28 hr
Jul 16, 2:17 AM CDT	Flood Watch	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more	29 hr
Jul 28, 11:12 PM CDT	Flood Watch	DVN	Hancock, Henderson, Henry, McDonough, Mercer, Rock Island and 1 more	8 hr
Jul 29, 1:29 AM CDT	Flood Watch	ILX	Fulton, Knox, Mason, Peoria, Schuyler, Stark and 1 more	6 hr
Jul 30, 11:53 AM CDT	Flood Watch	PAH	Edwards, Gallatin, Hamilton, Jefferson, Saline, Wabash and 2 more	10 hr
Jul 30, 2:15 PM CDT	Flood Watch	DVN	Hancock, Henderson, McDonough, Mercer, Rock Island, Warren	44 hr
Sep 26, 1:54 PM CDT	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	36 hr
Nov 4, 7:43 PM CST	Flood Watch	LSX	Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more	16 hr
Dec 28, 2:07 AM CST	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more	25 hr

By county

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

61 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2023 2025

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.