Alert archive / New Mexico / Sandoval County

Flash Flood Warnings in Sandoval County, New Mexico

325 flash flood warnings since 1986. An alert counts here when it covered this county. The archive of flash flood warnings reaches back to 1986.

Sandoval County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Flash Flood Warnings
325
Busiest year
202240 flash flood warnings
Average year
11over 30 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.

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

From 2008 to 2025, 63% of flash flood reports in Sandoval County fell inside a flash flood warning issued on average 57 minutes before, and 79% of the flash flood warnings had no report inside them.

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20087357%5100%48 min
20092150%0
201011373%580%42 min
201127678%5100%73 min
201216381%560%32 min
2013391367%1385%87 min
201420670%863%60 min
201511282%20%
20166183%333%23 min
20179189%20%
201812467%743%15 min
20197186%20%
202020100%0
20219456%4100%27 min
202240393%729%84 min
202380100%0
202431390%250%40 min
202512375%560%60 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.

The latest flash flood warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 18, 6:11 PM MDTFlash Flood WarningABQ2 hr
Sep 18, 1:47 PM MDTFlash Flood WarningABQ3 hr
Sep 18, 2:07 AM MDTFlash Flood WarningABQ3 hr
Sep 17, 7:03 PM MDTFlash Flood WarningABQ3 hr
Sep 17, 5:57 PM MDTFlash Flood WarningABQ3 hr
Sep 15, 4:57 PM MDTFlash Flood WarningABQ3 hr
Sep 15, 3:27 PM MDTFlash Flood WarningABQ3 hr
Aug 31, 5:57 PM MDTFlash Flood WarningABQ3 hr
Aug 19, 8:25 PM MDTFlash Flood Warning Considerable damage threatABQ2 hr
Jul 28, 6:55 PM MDTFlash Flood WarningABQ3 hr
Jul 28, 3:13 PM MDTFlash Flood WarningABQ3 hr
Jul 28, 2:37 PM MDTFlash Flood WarningABQ3 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.