Alert archive / Texas / Kendall County / Flash Flood Warnings

Flash Flood Warnings in Kendall County, Texas, 2015

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

Kendall County and its neighbors

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

Flash Flood Warnings
19
Busiest month
May8 flash flood warnings
Busiest day
October 30, 20154 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.

11 of 19 flash flood warnings covering Kendall County in 2015 had a flash flood report inside them; 5 of 5 flash flood reports fell inside a warning, on average 174 minutes after it went out.

Kendall County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Flash flood warnings191142%5100%174 min

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Austin/San Antonio, TX: flash flood warnings17910740%26787%105 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
May 17, 5:56 AM CDTFlash Flood WarningEWX3 hr
May 17, 8:44 AM CDTFlash Flood WarningEWX2 hr
May 23, 4:12 PM CDTFlash Flood WarningEWX9 hr
May 24, 12:25 AM CDTFlash Flood WarningEWX6 hr
May 25, 12:53 PM CDTFlash Flood WarningEWX3 hr
May 28, 11:31 PM CDTFlash Flood WarningEWX4 hr
May 28, 11:48 PM CDTFlash Flood WarningEWX4 hr
May 30, 2:46 PM CDTFlash Flood WarningEWX4 hr
Jun 17, 7:43 PM CDTFlash Flood WarningEWX3 hr
Jun 17, 9:13 PM CDTFlash Flood WarningEWX3 hr
Jun 19, 6:35 AM CDTFlash Flood WarningEWX3 hr
Oct 24, 3:00 AM CDTFlash Flood WarningEWX4 hr
Oct 24, 4:50 AM CDTFlash Flood WarningEWX2 hr
Oct 24, 6:48 AM CDTFlash Flood WarningEWX3 hr
Oct 30, 4:46 AM CDTFlash Flood WarningEWX4 hr
Oct 30, 5:04 AM CDTFlash Flood WarningEWX4 hr
Oct 30, 9:06 AM CDTFlash Flood WarningEWX5 hr
Oct 30, 1:50 PM CDTFlash Flood WarningEWX3 hr
Oct 31, 2:30 AM CDTFlash Flood WarningEWX7 hr

The busiest days

Days with the most alerts issued, by UTC date.

  1. October 30, 20154flash flood warnings
  2. October 24, 20153flash flood warnings
  3. May 17, 20152flash flood warnings
  4. May 29, 20152flash flood warnings
  5. June 18, 20152flash flood warnings
  6. May 23, 20151flash flood warnings
  7. May 24, 20151flash flood warnings
  8. May 25, 20151flash flood warnings
  9. May 30, 20151flash flood warnings
  10. June 19, 20151flash flood warnings

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.