Flash Flood Warnings in New Mexico
4,351 flash flood warnings since 1986. 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 since 1986. Tap one for its archive.
- Flash Flood Warnings
- 4,351
- Busiest year
- 2025426 flash flood warnings
- Average year
- 106over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
From 2008 to 2025, 68% of flash flood reports in New Mexico fell inside a flash flood warning issued on average 69 minutes before, and 78% of the flash flood warnings had no report inside them.
Flash flood warnings by year
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| 2008 | 114 | 45 | 61% | 85 | 69% | 51 min |
| 2009 | 76 | 14 | 82% | 30 | 60% | 36 min |
| 2010 | 151 | 28 | 81% | 56 | 68% | 36 min |
| 2011 | 89 | 24 | 73% | 40 | 73% | 50 min |
| 2012 | 62 | 15 | 76% | 34 | 56% | 54 min |
| 2013 | 276 | 62 | 78% | 145 | 64% | 83 min |
| 2014 | 191 | 46 | 76% | 103 | 52% | 62 min |
| 2015 | 115 | 23 | 80% | 63 | 38% | 38 min |
| 2016 | 92 | 31 | 66% | 73 | 62% | 57 min |
| 2017 | 110 | 27 | 75% | 61 | 51% | 43 min |
| 2018 | 129 | 25 | 81% | 52 | 58% | 52 min |
| 2019 | 57 | 12 | 79% | 34 | 41% | 70 min |
| 2020 | 27 | 1 | 96% | 15 | 13% | 4 min |
| 2021 | 170 | 37 | 78% | 100 | 49% | 65 min |
| 2022 | 382 | 76 | 80% | 164 | 71% | 101 min |
| 2023 | 153 | 24 | 84% | 71 | 61% | 68 min |
| 2024 | 345 | 72 | 79% | 222 | 84% | 91 min |
| 2025 | 426 | 104 | 76% | 336 | 87% | 61 min |
Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.
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.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Grant County390
- San Miguel County383
- Otero County358
- Sandoval County325
- Eddy County323
- Sierra County290
- Doña Ana County286
- Lincoln County284
- Lea County260
- Bernalillo County238
- Mora County229
- Santa Fe County217
- Colfax County169
- Socorro County142
- Rio Arriba County132
- Chaves County130
- Quay County125
- Torrance County123
- Roosevelt County120
- Luna County117
- Guadalupe County112
- Los Alamos County106
- Cibola County104
- Catron County101
- McKinley County99
- Curry County90
- Taos County86
- Valencia County85
- De Baca County83
- Hidalgo County82
- Union County76
- Harding County70
- San Juan County56
The latest flash flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 11:10 PM MDT | Flash Flood Warning | ABQ | Curry, Quay | 3 hr |
| Sep 25, 8:10 PM MDT | Flash Flood Warning | ABQ | Curry, Roosevelt | 3 hr |
| Sep 25, 6:40 PM MDT | Flash Flood Warning | ABQ | Socorro | 7 hr |
| Sep 25, 5:32 PM MDT | Flash Flood Warning | ABQ | Guadalupe, San Miguel | 3 hr |
| Sep 25, 5:05 PM MDT | Flash Flood Warning | ABQ | Socorro | 4 hr |
| Sep 25, 3:49 PM MDT | Flash Flood Warning | ABQ | Lincoln | 3 hr |
| Sep 25, 3:11 PM MDT | Flash Flood Warning | ABQ | Socorro, Valencia | 4 hr |
| Sep 25, 2:20 PM MDT | Flash Flood Warning | ABQ | Santa Fe | 3 hr |
| Sep 25, 1:35 PM MDT | Flash Flood Warning | ABQ | Cibola | 3 hr |
| Sep 25, 11:53 AM MDT | Flash Flood Warning | ABQ | Cibola | 3 hr |
| Sep 25, 4:46 AM MDT | Flash Flood Warning | MAF | Eddy, Lea | 3 hr |
| Sep 25, 3:52 AM MDT | Flash Flood Warning | EPZ | Otero | 3 hr |
Nearby
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.