National Weather ServiceIndianaFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in Indiana
The National Weather Service issued 78 flash flood warnings for Indiana in 2025 and 77 a year on average in 2008-2025; in 2021-2025 it had the 30th most of any state. 2026 through September: 209, 183% above the average of 74 for those months in 2008-2025. Clark was covered most often (91 times since 2008).
How many flash flood warnings does Indiana get?
Every flash flood warning that covered part of Indiana. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 209 |
| 2025 | 78 |
| 2024 | 36 |
| 2023 | 30 |
| 2022 | 40 |
| 2021 | 56 |
| 2020 | 47 |
| 2019 | 104 |
| 2018 | 71 |
| 2017 | 70 |
| 2016 | 72 |
| 2015 | 142 |
| 2014 | 62 |
| 2013 | 85 |
| 2012 | 30 |
| 2011 | 115 |
| 2010 | 87 |
| 2009 | 106 |
| 2008 | 147 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Indiana get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Indiana?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Clark | 91 | 23 | August 12, 2026 |
| Lake | 88 | 20 | August 12, 2026 |
| Crawford | 86 | 22 | July 21, 2026 |
| Vanderburgh | 86 | 24 | June 28, 2026 |
| Harrison | 81 | 23 | July 21, 2026 |
| Ripley | 79 | 12 | August 12, 2026 |
| Warrick | 79 | 23 | June 28, 2026 |
| Daviess | 77 | 18 | June 27, 2026 |
| Greene | 75 | 15 | June 27, 2026 |
| Perry | 75 | 23 | July 21, 2026 |
| Gibson | 72 | 27 | September 12, 2026 |
| Dearborn | 71 | 13 | August 12, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flash flood warnings for Indiana in AreaZine's record
NWS Northern IndianaWarningSeptember 17, 2026
Flash Flood Warning: Adams, Huntington, Wells and 1 more, IN and OH
Expired 2:15 p.m. EDT, September 17, 2026
NWS Northern IndianaWarningSeptember 17, 2026
Flash Flood Warning: Adams, Huntington and Wells, IN
Expired 7:45 a.m. EDT, September 17, 2026
NWS WilmingtonWarningSeptember 16, 2026
Flash Flood Warning: Wayne and Preble, IN and OH
Expired 10:00 p.m. EDT, September 16, 2026
NWS Northern IndianaWarningSeptember 16, 2026
Flash Flood Warning: Adams and Wells, IN
Expired 2:45 p.m. EDT, September 16, 2026
NWS Northern IndianaWarningSeptember 16, 2026
Flash Flood Warning: Adams, Blackford, Grant and 1 more, IN
Expired 5:00 a.m. EDT, September 16, 2026
NWS PaducahWarningSeptember 12, 2026
Flash Flood Warning: Gibson, IN
Expired 3:15 a.m. CDT, September 12, 2026
NWS IndianapolisWarningAugust 26, 2026
Flash Flood Warning: Monroe, IN
Expired 1:00 a.m. EDT, August 27, 2026
NWS IndianapolisWarningAugust 20, 2026
Flash Flood Warning: Hendricks, Morgan and Putnam, IN
Expired 9:00 a.m. EDT, August 20, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flash flood warning?
A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Indiana.