Alert archive / Texas / Guadalupe County

Weather alerts in Guadalupe County, Texas, 2009

118 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Guadalupe County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
118
Warnings
37
Watches
18
Advisories
44
Busiest month
April23 alerts
Busiest day
October 4, 20098 alerts

Over time

By month

Warning verification

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

Guadalupe County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13838%10%
Flash flood warnings990%6100%112 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Austin/San Antonio, TX: tornado warnings20195%633%10 min
NWS Austin/San Antonio, TX: severe thunderstorm warnings1647355%19278%23 min
NWS Austin/San Antonio, TX: flash flood warnings674336%9176%85 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
Jan 18, 5:56 AM CSTFire Weather WatchEWX15 hr
Jan 18, 8:40 PM CSTRed Flag WarningEWX21 hr
Jan 19, 4:42 AM CSTFire Weather WatchEWX10 hr
Jan 19, 3:06 PM CSTRed Flag WarningEWX27 hr
Jan 26, 5:44 AM CSTDense Fog AdvisoryEWX5 hr
Jan 27, 5:06 AM CSTWinter Storm WarningEWX28 hr
Jan 31, 3:31 PM CSTFire Weather WatchEWX12 hr
Feb 1, 3:41 AM CSTRed Flag WarningEWX38 hr
Feb 8, 4:22 PM CSTWind AdvisoryEWX8 hr
Feb 9, 3:31 PM CSTFire Weather WatchEWX14 hr
Feb 9, 3:31 PM CSTRed Flag WarningEWX48 hr
Feb 10, 6:44 AM CSTWind AdvisoryEWX23 hr
Feb 10, 9:14 PM CSTSevere Thunderstorm WarningEWX31 min
Feb 10, 9:33 PM CSTSevere Thunderstorm WarningEWX42 min
Feb 10, 10:07 PM CSTSevere Thunderstorm WarningEWX38 min
Feb 17, 3:25 PM CSTRed Flag WarningEWX24 hr
Feb 21, 9:21 AM CSTWind AdvisoryEWX11 hr
Feb 26, 1:58 PM CSTFire Weather WatchEWX24 hr
Feb 27, 5:33 AM CSTWind AdvisoryEWX36 hr
Feb 27, 2:01 PM CSTRed Flag WarningEWX28 hr
Mar 17, 3:44 AM CDTDense Fog AdvisoryEWX6 hr
Mar 22, 3:16 PM CDTWind AdvisoryEWX24 hr
Mar 25, 12:51 PM CDTMesoscale DiscussionSPC114 min
Mar 25, 2:06 PM CDTTornado WatchSPC7 hr
Mar 25, 3:57 PM CDTMesoscale DiscussionSPC93 min
Mar 26, 9:14 AM CDTMesoscale DiscussionSPC31 min
Mar 26, 9:39 AM CDTSevere Thunderstorm WatchSPC5 hr
Mar 26, 4:00 PM CDTWind AdvisoryEWX29 hr
Mar 27, 3:48 PM CDTRed Flag WarningEWX28 hr
Mar 28, 4:28 AM CDTWind AdvisoryEWX11 hr
Mar 28, 5:20 AM CDTFreeze WarningEWX28 hr
Mar 28, 3:41 PM CDTRed Flag WarningEWX29 hr
Mar 31, 7:43 AM CDTSevere Thunderstorm WarningEWX47 min
Mar 31, 8:15 AM CDTSevere Thunderstorm WarningEWX60 min
Apr 1, 4:07 AM CDTRed Flag WarningEWX39 hr
Apr 1, 9:41 PM CDTWind AdvisoryEWX19 hr
Apr 3, 3:28 PM CDTFire Weather WatchEWX12 hr
Apr 4, 3:23 AM CDTRed Flag WarningEWX43 hr
Apr 12, 3:55 AM CDTMesoscale DiscussionSPC95 min
Apr 17, 7:28 AM CDTMesoscale DiscussionSPC92 min
Apr 17, 7:48 AM CDTSevere Thunderstorm WatchSPC5 hr
Apr 17, 9:56 AM CDTMesoscale DiscussionSPC94 min
Apr 17, 3:19 PM CDTMesoscale DiscussionSPC56 min
Apr 17, 9:20 PM CDTFlash Flood WatchEWX19 hr
Apr 18, 3:22 AM CDTMesoscale DiscussionSPC113 min
Apr 18, 4:21 AM CDTSevere Thunderstorm WatchSPC7 hr
Apr 18, 5:11 AM CDTAreal Flood AdvisoryEWX2 hr
Apr 18, 6:32 AM CDTMesoscale DiscussionSPC118 min
Apr 18, 6:45 AM CDTFlash Flood WarningEWX4 hr
Apr 18, 10:50 AM CDTAreal Flood AdvisoryEWX115 min
Apr 24, 12:07 PM CDTMesoscale DiscussionSPC113 min
Apr 27, 7:55 AM CDTSevere Thunderstorm WatchSPC5 hr
Apr 27, 11:58 AM CDTAreal Flood AdvisoryEWX2 hr
Apr 27, 1:34 PM CDTFlash Flood WarningEWX3 hr
Apr 27, 1:54 PM CDTSevere Thunderstorm WarningEWX66 min
Apr 27, 2:30 PM CDTSevere Thunderstorm WarningEWX60 min
Apr 30, 1:35 AM CDTHigh Wind WarningEWX2 hr
May 11, 6:38 PM CDTSevere Thunderstorm WarningEWX37 min
May 27, 7:25 AM CDTAreal Flood AdvisoryEWX2 hr
May 27, 8:22 AM CDTFlash Flood WarningEWX3 hr
Jun 11, 9:36 PM CDTSevere Thunderstorm WarningEWX54 min
Jun 25, 11:24 AM CDTHeat AdvisoryEWX4 days
Jul 3, 3:15 PM CDTHeat AdvisoryEWX28 hr
Jul 8, 4:11 AM CDTHeat AdvisoryEWX72 hr
Jul 20, 10:48 AM CDTMesoscale DiscussionSPC87 min
Jul 20, 7:26 PM CDTSevere Thunderstorm WarningEWX64 min
Jul 30, 1:38 PM CDTMesoscale DiscussionSPC67 min
Aug 22, 1:35 PM CDTMesoscale DiscussionSPC85 min
Aug 23, 2:09 PM CDTMesoscale DiscussionSPC96 min
Aug 27, 10:25 PM CDTSevere Thunderstorm WarningEWX50 min
Sep 10, 2:23 PM CDTFlash Flood WarningEWX3 hr
Sep 11, 9:59 AM CDTFlash Flood WatchEWX33 hr
Sep 11, 4:49 PM CDTFlash Flood WarningEWX3 hr
Sep 11, 5:37 PM CDTAreal Flood AdvisoryEWX113 min
Sep 12, 8:00 PM CDTFlash Flood WatchEWX19 hr
Sep 28, 1:14 PM CDTMesoscale DiscussionSPC3 hr
Oct 1, 9:44 PM CDTMesoscale DiscussionSPC91 min
Oct 3, 2:38 PM CDTMesoscale DiscussionSPC67 min
Oct 3, 3:45 PM CDTAreal Flood AdvisoryEWX2 hr
Oct 3, 4:59 PM CDTSevere Thunderstorm WarningEWX61 min
Oct 3, 5:06 PM CDTAreal Flood AdvisoryEWX114 min
Oct 3, 9:25 PM CDTAreal Flood AdvisoryEWX110 min
Oct 4, 1:48 AM CDTMesoscale DiscussionSPC117 min
Oct 4, 3:06 AM CDTAreal Flood AdvisoryEWX114 min
Oct 4, 3:59 AM CDTFlash Flood WatchEWX21 hr
Oct 4, 4:41 AM CDTFlash Flood WarningEWX2 hr
Oct 4, 5:55 AM CDTFlash Flood WarningEWX80 min
Oct 4, 7:15 AM CDTFlash Flood WarningEWX3 hr
Oct 4, 12:35 PM CDTRiver Flood WarningEWX4 hr
Oct 8, 3:34 AM CDTFlash Flood WatchEWX32 hr
Oct 9, 6:56 AM CDTAreal Flood AdvisoryEWX5 hr
Oct 21, 8:35 PM CDTFlash Flood WatchEWX14 hr
Oct 25, 4:33 AM CDTFlash Flood WatchEWX35 hr
Nov 6, 6:24 AM CSTDense Fog AdvisoryEWX4 hr
Nov 7, 2:25 AM CSTDense Fog AdvisoryEWX9 hr
Nov 7, 7:56 PM CSTDense Fog AdvisoryEWX8 hr
Nov 13, 5:17 AM CSTDense Fog AdvisoryEWX5 hr
Nov 15, 7:10 AM CSTDense Fog AdvisoryEWX110 min
Nov 19, 11:37 PM CSTAreal Flood AdvisoryEWX113 min
Nov 20, 9:49 AM CSTAreal Flood AdvisoryEWX116 min
Nov 20, 9:58 AM CSTAreal Flood AdvisoryEWX107 min
Nov 20, 11:03 AM CSTFlash Flood WarningEWX3 hr
Nov 20, 3:29 PM CSTAreal Flood AdvisoryEWX2 hr
Nov 20, 5:35 PM CSTAreal Flood AdvisoryEWX3 hr
Nov 22, 3:05 AM CSTDense Fog AdvisoryEWX7 hr
Nov 22, 9:34 PM CSTDense Fog AdvisoryEWX12 hr
Dec 3, 11:52 AM CSTWinter Weather AdvisoryEWX26 hr
Dec 4, 4:19 AM CSTFreeze WarningEWX30 hr
Dec 6, 9:34 PM CSTDense Fog AdvisoryEWX12 hr
Dec 8, 9:41 PM CSTDense Fog AdvisoryEWX6 hr
Dec 12, 9:42 PM CSTDense Fog AdvisoryEWX12 hr
Dec 13, 9:43 PM CSTDense Fog AdvisoryEWX12 hr
Dec 14, 7:32 PM CSTDense Fog AdvisoryEWX8 hr
Dec 17, 9:55 PM CSTDense Fog AdvisoryEWX11 hr
Dec 23, 3:41 PM CSTWind AdvisoryEWX26 hr
Dec 23, 11:06 PM CSTMesoscale DiscussionSPC114 min
Dec 23, 11:35 PM CSTSevere Thunderstorm WarningEWX40 min
Dec 30, 10:26 PM CSTDense Fog AdvisoryEWX11 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20082010

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.