Alert archive / Illinois / Flash Flood Watches

Flash Flood Watches in Illinois, 2019

69 flash flood watches in 2019. 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 flash flood watches reaches back to 2005.

Flash Flood Watches by county

Each county as a circle sized by its count in 2019. Tap one for its archive.

Flash Flood Watches
69
Busiest month
September19 flash flood watches
Busiest day
June 19, 20195 flash 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.

IssuedProductOfficeCountiesLasted
Feb 21, 2:52 PM CSTFlash Flood WatchPAHHardin, Massac, Pope54 hr
Feb 23, 6:23 AM CSTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more15 hr
Apr 29, 2:48 PM CDTFlash Flood WatchILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more3 days
Apr 29, 3:28 PM CDTFlash Flood WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more3 days
Apr 29, 3:34 PM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more41 hr
Apr 30, 3:43 AM CDTFlash Flood WatchLSXGreene63 hr
Apr 30, 2:44 PM CDTFlash Flood WatchLOTDeKalb, DuPage, Ford, Grundy, Iroquois, Kane and 5 more17 hr
May 1, 2:11 PM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more19 hr
May 1, 2:14 PM CDTFlash Flood WatchLOTBoone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more27 hr
May 2, 10:49 AM CDTFlash Flood WatchPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more21 hr
May 2, 7:16 PM CDTFlash Flood WatchILXSangamon4 hr
May 18, 2:40 AM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more24 hr
May 21, 3:37 AM CDTFlash Flood WatchDVNBureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more19 hr
May 21, 3:40 AM CDTFlash Flood WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more20 hr
May 21, 3:47 AM CDTFlash Flood WatchILXCass, Christian, DeWitt, Fulton, Knox, Logan and 16 more21 hr
May 22, 1:53 PM CDTFlash Flood WatchLSXAdams14 hr
May 24, 3:33 AM CDTFlash Flood WatchLOTBoone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more22 hr
May 24, 3:46 AM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more23 hr
May 25, 3:49 AM CDTFlash Flood WatchDVNBureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more27 hr
May 25, 11:29 PM CDTFlash Flood WatchLSXAdams, Brown10 hr
May 28, 3:28 AM CDTFlash Flood WatchLSXAdams, Brown, Pike41 hr
May 28, 3:42 AM CDTFlash Flood WatchILXCass, Fulton, Knox, Logan, McLean, Marshall and 10 more27 hr
May 28, 3:45 AM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more25 hr
May 28, 4:01 AM CDTFlash Flood WatchLOTDeKalb, Ford, Grundy, Iroquois, Kankakee, Kendall and 5 more24 hr
May 29, 3:08 PM CDTFlash Flood WatchDVNCarroll, Hancock, Henderson, Henry, McDonough, Mercer and 3 more12 hr
Jun 15, 3:23 AM CDTFlash Flood WatchLSXBond, Fayette, Greene, Jersey, Macoupin, Montgomery28 hr
Jun 15, 3:48 AM CDTFlash Flood WatchILXCass, Champaign, Christian, Clark, Clay, Coles and 20 more27 hr
Jun 17, 3:14 AM CDTFlash Flood WatchPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 9 more28 hr
Jun 17, 3:16 AM CDTFlash Flood WatchLSXBond, Clinton, Fayette, Madison, Marion, Monroe and 3 more17 hr
Jun 17, 3:26 AM CDTFlash Flood WatchILXClark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more28 hr
Jun 19, 2:38 AM CDTFlash Flood WatchILXCass, Champaign, Christian, Clark, Clay, Coles and 26 more22 hr
Jun 19, 3:17 AM CDTFlash Flood WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 7 more17 hr
Jun 19, 4:00 AM CDTFlash Flood WatchPAHEdwards, Hamilton, Jefferson, Wabash, Wayne, White19 hr
Jun 19, 9:11 AM CDTFlash Flood WatchDVNHancock, McDonough11 hr
Jun 19, 2:49 PM CDTFlash Flood WatchLOTFord, Iroquois, Kankakee, Livingston18 hr
Jun 21, 2:59 PM CDTFlash Flood WatchPAHEdwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 7 more19 hr
Jun 21, 3:25 PM CDTFlash Flood WatchILXCass, Christian, Clark, Clay, Coles, Crawford and 18 more47 hr
Jun 21, 3:37 PM CDTFlash Flood WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 9 more21 hr
Jun 21, 3:58 PM CDTFlash Flood WatchDVNHancock, McDonough15 hr
Jun 22, 3:09 PM CDTFlash Flood WatchLSXAdams, Brown, Pike23 hr
Jun 22, 3:13 PM CDTFlash Flood WatchDVNHancock, Henderson, McDonough, Warren13 hr
Jul 13, 3:24 PM CDTFlash Flood WatchPAHAlexander, Johnson, Massac, Pulaski, Union3 days
Jul 17, 4:00 AM CDTFlash Flood WatchDVNCarroll, Jo Daviess, Stephenson, Whiteside30 hr
Aug 11, 9:17 PM CDTFlash Flood WatchLSXBond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more13 hr
Aug 16, 1:21 PM CDTFlash Flood WatchLSXAdams, Brown, Pike22 hr
Aug 21, 3:06 PM CDTFlash Flood WatchLSXBond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more19 hr
Sep 1, 10:11 AM CDTFlash Flood WatchILXSangamon22 hr
Sep 12, 1:46 AM CDTFlash Flood WatchDVNJo Daviess, Stephenson23 hr
Sep 14, 3:01 AM CDTFlash Flood WatchDVNBureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more30 hr
Sep 14, 2:47 PM CDTFlash Flood WatchLOTBoone, DeKalb, DuPage, Kane, Lake, Lee and 3 more19 hr
Sep 19, 8:17 AM CDTFlash Flood WatchDVNCarroll, Jo Daviess, Stephenson7 hr
Sep 20, 3:15 AM CDTFlash Flood WatchILXCass, Fulton, Knox, Marshall, Mason, Menard and 7 more61 hr
Sep 20, 3:28 AM CDTFlash Flood WatchLSXAdams, Brown, Pike60 hr
Sep 20, 4:07 AM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more63 hr
Sep 21, 3:35 AM CDTFlash Flood WatchLOTBoone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more41 hr
Sep 27, 11:27 AM CDTFlash Flood WatchDVNBureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more16 hr
Sep 27, 1:38 PM CDTFlash Flood WatchILXCass, Fulton, Knox, McLean, Marshall, Mason and 8 more17 hr
Sep 27, 1:43 PM CDTFlash Flood WatchLOTDeKalb, DuPage, Ford, Grundy, Iroquois, Kane and 6 more16 hr
Sep 27, 3:40 PM CDTFlash Flood WatchLSXAdams, Brown, Pike14 hr
Sep 28, 2:41 PM CDTFlash Flood WatchLOTDeKalb, DuPage, Grundy, Kane, Kankakee, Kendall and 3 more16 hr
Sep 28, 2:43 PM CDTFlash Flood WatchDVNBureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more13 hr
Sep 28, 3:17 PM CDTFlash Flood WatchILXFulton, Knox, Marshall, Peoria, Stark, Tazewell and 1 more12 hr
Sep 29, 5:00 AM CDTFlash Flood WatchDVNHancock, Henderson, McDonough, Warren12 hr
Sep 29, 10:58 AM CDTFlash Flood WatchILXFulton, Knox, McLean, Marshall, Mason, Peoria and 3 more9 hr
Sep 30, 2:39 PM CDTFlash Flood WatchDVNJo Daviess, Stephenson39 hr
Oct 1, 3:21 AM CDTFlash Flood WatchLOTBoone, Winnebago27 hr
Oct 2, 9:15 PM CDTFlash Flood WatchLOTGrundy, Kankakee, Kendall, LaSalle, Livingston6 hr
Oct 25, 3:35 PM CDTFlash Flood WatchPAHAlexander, Johnson, Massac, Pope, Pulaski, Union21 hr
Dec 28, 2:28 PM CSTFlash Flood WatchPAHGallatin, Hardin, Massac, Pope33 hr

By county

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

60 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 19, 20195flash flood watches
  2. May 28, 20194flash flood watches
  3. June 21, 20194flash flood watches
  4. September 27, 20194flash flood watches
  5. April 29, 20193flash flood watches
  6. May 21, 20193flash flood watches
  7. June 17, 20193flash flood watches
  8. September 20, 20193flash flood watches
  9. September 28, 20193flash flood watches
  10. April 30, 20192flash flood watches
  11. May 1, 20192flash flood watches
  12. May 24, 20192flash flood watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20182020

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. Rebuilt daily.