Alert archive / Texas / Galveston County

Weather alerts in Galveston County, Texas, 2013

106 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Galveston County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
106
Warnings
28
Watches
11
Advisories
45
Busiest month
January18 alerts
Busiest day
April 3, 20138 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Galveston County in 2013 had a tornado report inside them.

Galveston County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings15567%786%27 min
Flash flood warnings3167%825%88 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Houston/Galveston, TX: tornado warnings11191%250%17 min
NWS Houston/Galveston, TX: severe thunderstorm warnings1355261%11079%20 min
NWS Houston/Galveston, TX: flash flood warnings22577%2726%81 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 1, 3:35 AM CSTAreal Flood AdvisoryHGX115 min
Jan 1, 5:18 AM CSTFlash Flood WarningHGX117 min
Jan 1, 9:36 AM CSTAreal Flood AdvisoryHGX114 min
Jan 7, 3:23 PM CSTFlash Flood WatchHGX54 hr
Jan 8, 7:02 AM CSTMesoscale DiscussionSPC88 min
Jan 8, 7:45 AM CSTSpecial Weather StatementHGX45 min
Jan 9, 1:03 PM CSTSpecial Weather StatementHGX57 min
Jan 9, 1:07 PM CSTSpecial Weather StatementHGX53 min
Jan 9, 1:15 PM CSTAreal Flood AdvisoryHGX3 hr
Jan 9, 1:34 PM CSTFlash Flood WarningHGX86 min
Jan 11, 9:17 PM CSTDense Fog AdvisoryHGX12 hr
Jan 19, 11:12 PM CSTDense Fog AdvisoryHGX10 hr
Jan 20, 11:51 PM CSTDense Fog AdvisoryHGX10 hr
Jan 22, 10:56 PM CSTDense Fog AdvisoryHGX11 hr
Jan 26, 3:27 PM CSTDense Fog AdvisoryHGX6 hr
Jan 26, 9:38 PM CSTDense Fog AdvisoryHGX5 hr
Jan 30, 4:23 AM CSTWind AdvisoryHGX12 hr
Jan 30, 7:33 AM CSTRed Flag WarningHGX10 hr
Feb 5, 12:54 AM CSTDense Fog AdvisoryHGX8 hr
Feb 5, 2:47 PM CSTDense Fog AdvisoryHGX18 hr
Feb 18, 5:29 AM CSTWind AdvisoryHGX11 hr
Feb 24, 6:16 AM CSTFire Weather WatchHGX9 hr
Feb 24, 3:13 PM CSTRed Flag WarningHGX30 hr
Feb 24, 3:14 PM CSTWind AdvisoryHGX42 hr
Mar 4, 2:58 AM CSTFire Weather WatchHGX12 hr
Mar 4, 3:31 AM CSTWind AdvisoryHGX14 hr
Mar 4, 3:08 PM CSTRed Flag WarningHGX27 hr
Mar 5, 4:39 AM CSTWind AdvisoryHGX13 hr
Mar 10, 9:43 AM CDTSpecial Weather StatementHGX77 min
Mar 11, 4:38 AM CDTRed Flag WarningHGX13 hr
Mar 23, 5:28 AM CDTFire Weather WatchHGX9 hr
Mar 23, 2:49 PM CDTWind AdvisoryHGX25 hr
Mar 23, 2:57 PM CDTRed Flag WarningHGX28 hr
Mar 23, 10:25 PM CDTDense Fog AdvisoryHGX6 hr
Mar 31, 2:48 PM CDTSevere Thunderstorm WatchSPC5 hr
Mar 31, 5:24 PM CDTMesoscale DiscussionSPC96 min
Mar 31, 5:31 PM CDTSpecial Weather StatementHGX44 min
Mar 31, 6:14 PM CDTSpecial Weather StatementHGX46 min
Apr 2, 3:54 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 2, 10:06 PM CDTMesoscale DiscussionSPC54 min
Apr 2, 10:11 PM CDTSevere Thunderstorm WarningHGX49 min
Apr 2, 10:39 PM CDTAreal Flood AdvisoryHGX111 min
Apr 2, 10:56 PM CDTSevere Thunderstorm WarningHGX49 min
Apr 2, 11:30 PM CDTSevere Thunderstorm WarningHGX45 min
Apr 2, 11:31 PM CDTSevere Thunderstorm WarningHGX44 min
Apr 2, 11:38 PM CDTAreal Flood AdvisoryHGX2 hr
Apr 3, 1:36 AM CDTMesoscale DiscussionSPC114 min
Apr 10, 5:05 AM CDTRip Current StatementHGX14 hr
Apr 11, 5:55 AM CDTAreal Flood AdvisoryHGX3 hr
Apr 18, 2:56 PM CDTWind AdvisoryHGX18 hr
Apr 27, 5:05 PM CDTSevere Thunderstorm WatchSPC8 hr
May 1, 9:56 PM CDTWind AdvisoryHGX45 hr
May 3, 2:14 PM CDTRed Flag WarningHGX5 hr
May 10, 9:02 AM CDTSevere Thunderstorm WatchSPC5 hr
May 10, 11:05 AM CDTTornado WarningHGX25 min
May 10, 11:07 AM CDTAreal Flood AdvisoryHGX3 hr
May 10, 11:25 AM CDTSevere Thunderstorm WarningHGX50 min
May 10, 11:43 PM CDTSevere Thunderstorm WarningHGX32 min
Jun 1, 9:43 AM CDTRip Current StatementHGX9 hr
Jun 6, 12:28 PM CDTMesoscale DiscussionSPC92 min
Jun 6, 2:28 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 6, 4:57 PM CDTMesoscale DiscussionSPC2 hr
Jun 6, 6:34 PM CDTSevere Thunderstorm WarningHGX41 min
Jun 6, 7:45 PM CDTSevere Thunderstorm WarningHGX30 min
Jun 6, 8:00 PM CDTSevere Thunderstorm WarningHGX30 min
Jun 6, 8:06 PM CDTSevere Thunderstorm WarningHGX24 min
Jun 6, 8:33 PM CDTSevere Thunderstorm WarningHGX42 min
Jun 8, 2:13 PM CDTSpecial Weather StatementHGX47 min
Jul 14, 12:20 PM CDTSpecial Weather StatementHGX25 min
Jul 27, 4:29 PM CDTSpecial Weather StatementHGX46 min
Jul 27, 4:55 PM CDTMesoscale DiscussionSPC3 hr
Aug 4, 4:00 PM CDTHeat AdvisoryHGX5 days
Aug 16, 6:13 PM CDTSevere Thunderstorm WarningHGX32 min
Aug 16, 6:15 PM CDTAreal Flood AdvisoryHGX60 min
Aug 16, 6:43 PM CDTSevere Thunderstorm WarningHGX32 min
Sep 16, 12:57 PM CDTRip Current StatementHGX7 hr
Oct 1, 11:26 AM CDTAreal Flood AdvisoryHGX109 min
Oct 1, 2:51 PM CDTAreal Flood AdvisoryHGX54 min
Oct 2, 1:04 PM CDTAreal Flood AdvisoryHGX56 min
Oct 4, 6:07 PM CDTCoastal Flood StatementHGX31 hr
Oct 12, 2:04 PM CDTAreal Flood AdvisoryHGX116 min
Oct 12, 2:57 PM CDTAreal Flood AdvisoryHGX2 hr
Oct 27, 6:28 AM CDTSevere Thunderstorm WarningHGX62 min
Oct 27, 7:01 AM CDTSevere Thunderstorm WarningHGX59 min
Oct 30, 2:39 PM CDTFlash Flood WatchHGX25 hr
Oct 31, 8:02 AM CDTAreal Flood AdvisoryHGX118 min
Oct 31, 10:15 AM CDTAreal Flood AdvisoryHGX3 hr
Oct 31, 10:35 AM CDTAreal Flood AdvisoryHGX3 hr
Oct 31, 11:02 AM CDTFlash Flood WarningHGX3 hr
Oct 31, 12:06 PM CDTRiver Flood WarningHGX22 hr
Oct 31, 12:45 PM CDTRiver Flood WarningHGX22 hr
Oct 31, 10:32 PM CDTDense Fog AdvisoryHGX10 hr
Nov 12, 5:08 AM CSTWind AdvisoryHGX22 hr
Nov 17, 5:54 PM CSTDense Fog AdvisoryHGX18 hr
Nov 23, 1:31 PM CSTWind AdvisoryHGX19 hr
Nov 26, 4:25 AM CSTWind AdvisoryHGX8 hr
Nov 27, 3:50 PM CSTFreeze WarningHGX16 hr
Dec 4, 7:57 AM CSTDense Fog AdvisoryHGX2 hr
Dec 5, 9:31 PM CSTWind AdvisoryHGX6 hr
Dec 9, 3:41 PM CSTWind AdvisoryHGX17 hr
Dec 14, 2:42 AM CSTDense Fog AdvisoryHGX7 hr
Dec 14, 2:26 PM CSTWind AdvisoryHGX10 hr
Dec 18, 1:55 AM CSTDense Fog AdvisoryHGX7 hr
Dec 21, 7:57 AM CSTMesoscale DiscussionSPC63 min
Dec 21, 9:46 AM CSTTornado WatchSPC8 hr
Dec 21, 12:30 PM CSTMesoscale DiscussionSPC60 min

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 archive20122014

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.