Alert archive / Texas / McMullen County / Flash Flood Warnings

Flash Flood Warnings in McMullen County, Texas, 2015

17 flash flood warnings in 2015. An alert counts here when it covered this county. The archive of flash flood warnings reaches back to 1986.

McMullen County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Flash Flood Warnings
17
Busiest month
May10 flash flood warnings
Busiest day
May 13, 20155 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.

2 of 17 flash flood warnings covering McMullen County in 2015 had a flash flood report inside them.

McMullen County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Flash flood warnings17288%0

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Corpus Christi, TX: flash flood warnings1175156%13685%73 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Mar 21, 5:19 AM CDTFlash Flood WarningCRP116 min
Mar 21, 9:27 AM CDTFlash Flood WarningCRP2 hr
Apr 14, 4:36 AM CDTFlash Flood WarningCRP84 min
Apr 14, 5:31 AM CDTFlash Flood WarningCRP89 min
May 11, 10:20 PM CDTFlash Flood WarningCRP115 min
May 13, 10:04 AM CDTFlash Flood WarningCRP116 min
May 13, 12:02 PM CDTFlash Flood WarningCRP118 min
May 13, 1:08 PM CDTFlash Flood WarningCRP82 min
May 13, 2:00 PM CDTFlash Flood WarningCRP90 min
May 13, 2:30 PM CDTFlash Flood WarningCRP60 min
May 14, 8:31 PM CDTFlash Flood WarningCRP2 hr
May 15, 7:42 AM CDTFlash Flood WarningCRP2 hr
May 15, 9:43 AM CDTFlash Flood WarningCRP6 hr
May 30, 5:46 PM CDTFlash Flood WarningCRP3 hr
Oct 9, 9:30 AM CDTFlash Flood WarningCRP3 hr
Oct 24, 10:40 AM CDTFlash Flood WarningCRP2 hr
Oct 24, 2:07 PM CDTFlash Flood WarningCRP113 min

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20142016

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.