Alert archive / Indiana / Flash Flood Warnings
Flash Flood Warnings in Indiana, 2025
78 flash flood warnings in 2025. 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Flash Flood Warnings
- 78
- Busiest month
- July25 flash flood warnings
- Busiest day
- April 5, 202511 flash flood warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
42 of 78 flash flood warnings covering Indiana in 2025 had a flash flood report inside them; 70 of 89 flash flood reports fell inside a warning, on average 71 minutes after it went out.
Indiana, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Flash flood warnings | 78 | 42 | 46% | 89 | 79% | 71 min |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, OH: flash flood warnings | 46 | 26 | 43% | 109 | 72% | 85 min |
| NWS Louisville, KY: flash flood warnings | 89 | 62 | 30% | 153 | 86% | 152 min |
| NWS Paducah, KY: flash flood warnings | 91 | 51 | 44% | 127 | 85% | 353 min |
| NWS Indianapolis, IN: flash flood warnings | 33 | 16 | 52% | 26 | 69% | 68 min |
| NWS Chicago, IL: flash flood warnings | 34 | 19 | 44% | 130 | 78% | 56 min |
| NWS Northern Indiana: flash flood warnings | 3 | 1 | 67% | 6 | 33% | 52 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 5:22 PM EST | Flash Flood Warning | PAH | Posey, Vanderburgh, Warrick | 7 hr |
| Feb 15, 10:34 PM EST | Flash Flood Warning | LMK | Clark, Crawford, Floyd, Harrison | 6 hr |
| Feb 15, 11:01 PM EST | Flash Flood Warning | ILN | Dearborn, Ohio, Ripley, Switzerland | 5 hr |
| Feb 15, 11:14 PM EST | Flash Flood Warning | LMK | Harrison, Perry | 6 hr |
| Feb 16, 12:59 AM EST | Flash Flood Warning | LMK | Clark, Crawford, Floyd, Harrison, Jefferson, Scott and 1 more | 4 hr |
| Mar 30, 10:10 PM EDT | Flash Flood Warning | LMK | Clark, Crawford, Floyd, Harrison, Orange, Perry and 1 more | 2 hr |
| Apr 2, 10:20 PM EDT | Flash Flood Warning | IND | Boone, Hamilton, Hancock, Hendricks, Johnson, Marion and 2 more | 3 hr |
| Apr 2, 10:50 PM EDT | Flash Flood Warning | PAH | Spencer, Vanderburgh, Warrick | 5 hr |
| Apr 2, 10:52 PM EDT | Flash Flood Warning | IND | Brown, Greene, Johnson, Monroe, Morgan, Owen and 2 more | 3 hr |
| Apr 2, 11:44 PM EDT | Flash Flood Warning | IND | Bartholomew, Brown, Daviess, Decatur, Jackson, Johnson and 5 more | 3 hr |
| Apr 3, 9:30 PM EDT | Flash Flood Warning | LMK | Clark, Crawford, Dubois, Floyd, Harrison, Orange and 2 more | 8 hr |
| Apr 3, 11:20 PM EDT | Flash Flood Warning | LMK | Clark, Crawford, Dubois, Floyd, Harrison, Jefferson and 4 more | 8 hr |
| Apr 4, 5:30 AM EDT | Flash Flood Warning | LMK | Clark, Crawford, Dubois, Floyd, Harrison, Perry and 1 more | 3 hr |
| Apr 4, 10:14 PM EDT | Flash Flood Warning | IND | Clay, Greene, Hendricks, Johnson, Marion, Morgan and 5 more | 3 hr |
| Apr 4, 11:22 PM EDT | Flash Flood Warning | IND | Bartholomew, Brown, Greene, Johnson, Monroe, Morgan and 2 more | 3 hr |
| Apr 4, 11:46 PM EDT | Flash Flood Warning | PAH | Gibson, Posey, Vanderburgh | 6 hr |
| Apr 4, 11:49 PM EDT | Flash Flood Warning | ILN | Fayette, Franklin, Union, Wayne | 4 hr |
| Apr 4, 11:57 PM EDT | Flash Flood Warning | IND | Bartholomew, Decatur, Hancock, Henry, Johnson, Marion and 2 more | 3 hr |
| Apr 5, 12:03 AM EDT | Flash Flood Warning | IND | Daviess, Greene, Knox, Lawrence, Martin, Monroe and 2 more | 3 hr |
| Apr 5, 1:15 AM EDT | Flash Flood Warning | IND | Clay, Greene, Hancock, Hendricks, Johnson, Marion and 8 more | 3 hr |
| Apr 5, 2:16 AM EDT | Flash Flood Warning | IND | Bartholomew, Brown, Greene, Johnson, Monroe, Morgan and 1 more | 3 hr |
| Apr 5, 2:52 AM EDT | Flash Flood Warning | IND | Bartholomew, Decatur, Hancock, Johnson, Marion, Rush and 1 more | 2 hr |
| Apr 5, 3:46 PM EDT | Flash Flood Warning | PAH | Spencer, Vanderburgh, Warrick | 7 hr |
| Apr 5, 4:32 PM EDT | Flash Flood Warning | PAH | Gibson, Pike, Posey | 6 hr |
| Apr 24, 5:21 PM EDT | Flash Flood Warning | IND | Greene, Lawrence, Martin, Monroe | 3 hr |
| Apr 24, 7:47 PM EDT | Flash Flood Warning | IND | Rush | 3 hr |
| Apr 29, 4:27 PM EDT | Flash Flood Warning | IND | Daviess, Greene, Knox, Martin, Sullivan | 3 hr |
| May 8, 2:33 PM EDT | Flash Flood Warning | IND | Decatur, Shelby | 112 min |
| May 8, 3:00 PM EDT | Flash Flood Warning | IND | Morgan, Putnam | 85 min |
| Jun 6, 6:49 PM EDT | Flash Flood Warning | LMK | Orange, Washington | 3 hr |
| Jun 13, 5:59 PM EDT | Flash Flood Warning | PAH | Vanderburgh | 5 hr |
| Jun 13, 6:53 PM EDT | Flash Flood Warning | PAH | Posey, Vanderburgh | 4 hr |
| Jun 13, 7:13 PM EDT | Flash Flood Warning | PAH | Vanderburgh | 4 hr |
| Jun 14, 8:41 AM EDT | Flash Flood Warning | IND | Howard, Tipton | 6 hr |
| Jun 14, 8:49 AM EDT | Flash Flood Warning | IND | Boone | 5 hr |
| Jun 14, 8:32 PM EDT | Flash Flood Warning | PAH | Vanderburgh, Warrick | 2 hr |
| Jun 24, 7:08 PM EDT | Flash Flood Warning | IWX | Marshall, Starke | 3 hr |
| Jun 29, 4:07 PM EDT | Flash Flood Warning | IWX | Wells | 3 hr |
| Jun 29, 9:40 PM EDT | Flash Flood Warning | IND | Monroe | 10 hr |
| Jun 30, 2:19 AM EDT | Flash Flood Warning | IND | Brown, Lawrence, Monroe | 6 hr |
| Jun 30, 3:49 AM EDT | Flash Flood Warning | IND | Daviess, Greene, Lawrence, Martin, Monroe | 4 hr |
| Jun 30, 4:08 AM EDT | Flash Flood Warning | IND | Brown, Jackson, Lawrence, Monroe | 4 hr |
| Jun 30, 8:52 PM EDT | Flash Flood Warning | ILN | Franklin | 83 min |
| Jul 1, 12:12 AM EDT | Flash Flood Warning | IND | Knox, Sullivan | 8 hr |
| Jul 1, 12:56 AM EDT | Flash Flood Warning | IND | Daviess, Greene, Martin | 7 hr |
| Jul 6, 10:43 PM EDT | Flash Flood Warning | LOT | Jasper, Newton | 3 hr |
| Jul 12, 6:29 PM EDT | Flash Flood Warning | ILN | Dearborn | 43 min |
| Jul 17, 4:48 PM EDT | Flash Flood Warning | LMK | Clark, Floyd, Scott | 5 hr |
| Jul 17, 5:06 PM EDT | Flash Flood Warning | IND | Daviess | 3 hr |
| Jul 17, 5:34 PM EDT | Flash Flood Warning | LMK | Clark, Harrison, Jefferson, Orange, Scott, Washington | 7 hr |
| Jul 17, 6:10 PM EDT | Flash Flood Warning | LMK | Clark, Scott, Washington | 5 hr |
| Jul 17, 6:34 PM EDT | Flash Flood Warning | LMK | Clark, Floyd, Harrison | 2 hr |
| Jul 17, 7:52 PM EDT | Flash Flood Warning | IND | Monroe, Owen | 3 hr |
| Jul 18, 7:13 PM EDT | Flash Flood Warning | PAH | Vanderburgh, Warrick | 4 hr |
| Jul 19, 11:51 AM EDT | Flash Flood Warning | PAH | Gibson, Pike | 8 hr |
| Jul 19, 11:58 AM EDT | Flash Flood Warning | IND | Knox | 3 hr |
| Jul 19, 12:46 PM EDT | Flash Flood Warning | LMK | Dubois | 3 hr |
| Jul 19, 1:51 PM EDT | Flash Flood Warning | LMK | Crawford, Perry | 3 hr |
| Jul 19, 1:59 PM EDT | Flash Flood Warning | PAH | Gibson | 6 hr |
| Jul 19, 2:32 PM EDT | Flash Flood Warning | PAH | Posey, Vanderburgh, Warrick | 6 hr |
| Jul 19, 3:29 PM EDT | Flash Flood Warning | PAH | Spencer | 5 hr |
| Jul 19, 4:12 PM EDT | Flash Flood Warning | IWX | LaPorte | 3 hr |
| Jul 20, 8:00 PM EDT | Flash Flood Warning | IND | Sullivan, Vigo | 3 hr |
| Jul 26, 9:24 PM EDT | Flash Flood Warning | IND | Delaware, Randolph | 3 hr |
| Jul 27, 5:47 PM EDT | Flash Flood Warning | IND | Knox, Sullivan | 118 min |
| Jul 28, 6:19 PM EDT | Flash Flood Warning | ILN | Dearborn, Ohio, Ripley | 2 hr |
| Jul 30, 2:56 PM EDT | Flash Flood Warning | LOT | Jasper, Lake, Newton, Porter | 3 hr |
| Aug 4, 8:57 PM EDT | Flash Flood Warning | IND | Lawrence | 3 hr |
| Aug 4, 9:24 PM EDT | Flash Flood Warning | IND | Daviess, Lawrence, Martin | 3 hr |
| Aug 12, 3:13 PM EDT | Flash Flood Warning | IND | Monroe | 3 hr |
| Aug 12, 9:31 PM EDT | Flash Flood Warning | ILN | Ohio, Switzerland | 119 min |
| Aug 17, 3:32 AM EDT | Flash Flood Warning | LOT | Lake | 118 min |
| Aug 18, 9:21 PM EDT | Flash Flood Warning | LOT | Lake | 3 hr |
| Aug 18, 9:26 PM EDT | Flash Flood Warning | LOT | Lake | 3 hr |
| Aug 18, 10:12 PM EDT | Flash Flood Warning | LOT | Porter | 2 hr |
| Aug 19, 1:38 AM EDT | Flash Flood Warning | LOT | Lake | 112 min |
| Sep 22, 9:57 PM EDT | Flash Flood Warning | LMK | Clark | 3 hr |
| Sep 23, 8:49 PM EDT | Flash Flood Warning | IND | Fountain, Vermillion, Warren | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Monroe County13
- Clark County11
- Vanderburgh County10
- Greene County10
- Harrison County9
- Johnson County9
- Floyd County8
- Washington County8
- Shelby County8
- Lawrence County8
- Crawford County7
- Morgan County7
- Owen County7
- Daviess County7
- Martin County7
- Sullivan County7
- Warrick County6
- Perry County6
- Brown County6
- Posey County5
- Scott County5
- Orange County5
- Marion County5
- Bartholomew County5
- Knox County5
- Lake County5
- Hancock County4
- Putnam County4
- Decatur County4
- Rush County4
- Dubois County4
- Gibson County4
- Dearborn County3
- Ohio County3
- Jefferson County3
- Hendricks County3
- Spencer County3
- Vigo County3
- Ripley County2
- Switzerland County2
25 more counties
- Boone County2
- Jackson County2
- Clay County2
- Parke County2
- Franklin County2
- Pike County2
- Jasper County2
- Newton County2
- Porter County2
- Hamilton County1
- Fayette County1
- Union County1
- Wayne County1
- Henry County1
- Howard County1
- Tipton County1
- Marshall County1
- Starke County1
- Wells County1
- LaPorte County1
- Delaware County1
- Randolph County1
- Fountain County1
- Vermillion County1
- Warren County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.