National Weather ServiceNebraskaFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in Nebraska
The National Weather Service issued 46 flash flood warnings for Nebraska in 2025 and 65 a year on average in 2008-2025; in 2021-2025 it had the 29th most of any state. 2026 through September: 72, 11% above the average of 65 for those months in 2008-2025. Lancaster was covered most often (66 times since 2008).
How many flash flood warnings does Nebraska get?
Every flash flood warning that covered part of Nebraska. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 82 |
| 2025 | 46 |
| 2024 | 75 |
| 2023 | 72 |
| 2022 | 22 |
| 2021 | 33 |
| 2020 | 35 |
| 2019 | 143 |
| 2018 | 58 |
| 2017 | 39 |
| 2016 | 101 |
| 2015 | 62 |
| 2014 | 63 |
| 2013 | 33 |
| 2012 | 25 |
| 2011 | 75 |
| 2010 | 88 |
| 2009 | 46 |
| 2008 | 162 |
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 Nebraska 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 Nebraska?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Lancaster | 66 | 19 | October 1, 2026 |
| Hitchcock | 59 | 17 | July 3, 2026 |
| Douglas | 56 | 18 | October 1, 2026 |
| Sarpy | 54 | 20 | October 1, 2026 |
| Custer | 48 | 11 | July 30, 2025 |
| Kimball | 48 | 11 | August 15, 2026 |
| Red Willow | 48 | 11 | July 3, 2026 |
| Cheyenne | 47 | 13 | June 8, 2026 |
| Saunders | 47 | 9 | October 1, 2026 |
| Gage | 45 | 12 | October 1, 2026 |
| Dakota | 44 | 5 | July 3, 2026 |
| Dundy | 44 | 15 | July 3, 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 Nebraska in AreaZine's record
NWS Omaha/ValleyWarningOctober 1, 2026
Flash Flood Warning: Douglas and Sarpy, NE
Expired 3:00 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningOctober 1, 2026
Flash Flood Warning: Lancaster, Saline and Seward, NE
Expired 2:00 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningOctober 1, 2026
Flash Flood Warning: Lancaster, Saunders and Seward, NE
Expired 1:30 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningOctober 1, 2026
Flash Flood Warning: Cass and Lancaster, NE
Expired 3:15 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningSeptember 30, 2026
Flash Flood Warning: Cass, Gage, Johnson and 2 more, NE
Expired 3:00 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningSeptember 30, 2026
Flash Flood Warning: Harrison, Pottawattamie, Shelby and 2 more, IA and NE
Expired 2:15 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningSeptember 30, 2026
Flash Flood Warning: Pottawattamie, Douglas and Sarpy, IA and NE
Expired 2:00 a.m. CDT, October 1, 2026
NWS Omaha/ValleyWarningSeptember 30, 2026
Flash Flood Warning: Butler and Saunders, NE
Expired 12:45 a.m. CDT, October 1, 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 Nebraska.