Alert archive / Texas / Fort Bend County

Weather alerts in Fort Bend County, Texas, 2009

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

Fort Bend County and its neighbors

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

Alerts
151
Warnings
50
Watches
26
Advisories
42
Busiest month
April55 alerts
Busiest day
April 18, 200913 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 4 tornado warnings covering Fort Bend County in 2009 had a tornado report inside them.

Fort Bend County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings40100%0
Severe thunderstorm warnings20575%729%27 min
Flash flood warnings10730%1100%55 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Houston/Galveston, TX: tornado warnings46589%1656%7 min
NWS Houston/Galveston, TX: severe thunderstorm warnings2215774%12976%19 min
NWS Houston/Galveston, TX: flash flood warnings411661%5686%74 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 2, 4:04 AM CSTDense Fog AdvisoryHGX8 hr
Jan 13, 9:35 AM CSTRed Flag WarningHGX8 hr
Jan 18, 3:42 PM CSTFire Weather WatchHGX6 hr
Jan 18, 9:20 PM CSTRed Flag WarningHGX21 hr
Jan 19, 7:04 AM CSTFire Weather WatchHGX22 hr
Jan 20, 5:27 AM CSTRed Flag WarningHGX13 hr
Feb 1, 4:12 AM CSTFire Weather WatchHGX11 hr
Feb 1, 3:12 PM CSTRed Flag WarningHGX24 hr
Feb 1, 11:55 PM CSTDense Fog AdvisoryHGX3 hr
Feb 8, 8:45 AM CSTWind AdvisoryHGX11 hr
Feb 10, 9:30 AM CSTWind AdvisoryHGX12 hr
Feb 10, 9:46 PM CSTMesoscale DiscussionSPC29 min
Feb 10, 9:57 PM CSTSevere Thunderstorm WatchSPC5 hr
Feb 11, 1:03 AM CSTSevere Thunderstorm WarningHGX42 min
Feb 11, 4:15 AM CSTRed Flag WarningHGX13 hr
Feb 17, 3:49 PM CSTFire Weather WatchHGX13 hr
Feb 27, 6:32 AM CSTFire Weather WatchHGX23 hr
Feb 27, 2:59 PM CSTRed Flag WarningHGX27 hr
Feb 27, 8:11 PM CSTWind AdvisoryHGX25 hr
Feb 28, 2:57 PM CSTRed Flag WarningHGX27 hr
Mar 16, 8:10 PM CDTDense Fog AdvisoryHGX14 hr
Mar 17, 8:04 PM CDTDense Fog AdvisoryHGX14 hr
Mar 18, 8:31 PM CDTDense Fog AdvisoryHGX14 hr
Mar 19, 9:20 PM CDTDense Fog AdvisoryHGX9 hr
Mar 21, 3:13 AM CDTDense Fog AdvisoryHGX7 hr
Mar 23, 11:05 AM CDTWind AdvisoryHGX9 hr
Mar 25, 12:51 PM CDTMesoscale DiscussionSPC114 min
Mar 25, 7:12 PM CDTTornado WatchSPC6 hr
Mar 26, 12:57 PM CDTSevere Thunderstorm WatchSPC6 hr
Mar 26, 1:54 PM CDTSevere Thunderstorm WarningHGX51 min
Mar 26, 2:34 PM CDTAreal Flood AdvisoryHGX116 min
Mar 26, 3:38 PM CDTAreal Flood AdvisoryHGX112 min
Mar 26, 3:51 PM CDTMesoscale DiscussionSPC54 min
Mar 27, 10:24 AM CDTMesoscale DiscussionSPC96 min
Apr 1, 3:13 PM CDTFire Weather WatchHGX17 hr
Apr 2, 1:49 AM CDTSevere Thunderstorm WatchSPC7 hr
Apr 2, 7:36 AM CDTMesoscale DiscussionSPC54 min
Apr 2, 7:47 AM CDTRed Flag WarningHGX11 hr
Apr 2, 11:19 AM CDTWind AdvisoryHGX8 hr
Apr 5, 5:55 AM CDTWind AdvisoryHGX13 hr
Apr 5, 7:16 PM CDTFire Weather WatchHGX17 hr
Apr 6, 12:17 PM CDTRed Flag WarningHGX7 hr
Apr 12, 3:55 AM CDTMesoscale DiscussionSPC95 min
Apr 12, 4:37 AM CDTMesoscale DiscussionSPC83 min
Apr 12, 7:58 AM CDTTornado WatchSPC8 hr
Apr 12, 11:24 AM CDTSevere Thunderstorm WarningHGX51 min
Apr 17, 9:56 AM CDTMesoscale DiscussionSPC94 min
Apr 17, 10:24 AM CDTTornado WatchSPC7 hr
Apr 17, 11:24 AM CDTFlood WatchHGX33 hr
Apr 17, 1:45 PM CDTMesoscale DiscussionSPC2 hr
Apr 17, 3:38 PM CDTFlash Flood WarningHGX112 min
Apr 17, 3:44 PM CDTTornado WatchSPC6 hr
Apr 17, 4:20 PM CDTSevere Thunderstorm WarningHGX40 min
Apr 17, 6:50 PM CDTMesoscale DiscussionSPC85 min
Apr 18, 9:47 AM CDTMesoscale DiscussionSPC28 min
Apr 18, 9:53 AM CDTTornado WatchSPC6 hr
Apr 18, 11:26 AM CDTMesoscale DiscussionSPC2 hr
Apr 18, 11:44 AM CDTAreal Flood AdvisoryHGX2 hr
Apr 18, 12:02 PM CDTSevere Thunderstorm WarningHGX43 min
Apr 18, 12:08 PM CDTTornado WarningHGX37 min
Apr 18, 12:43 PM CDTSevere Thunderstorm WarningHGX47 min
Apr 18, 1:22 PM CDTFlash Flood WarningHGX3 hr
Apr 18, 1:29 PM CDTSevere Thunderstorm WarningHGX46 min
Apr 18, 1:30 PM CDTSevere Thunderstorm WarningHGX45 min
Apr 18, 1:43 PM CDTMesoscale DiscussionSPC92 min
Apr 18, 2:02 PM CDTFlash Flood WarningHGX3 hr
Apr 18, 3:04 PM CDTRiver Flood WarningHGX55 hr
Apr 18, 11:56 PM CDTDense Fog AdvisoryHGX8 hr
Apr 19, 7:07 AM CDTRiver Flood WarningHGX5 days
Apr 24, 12:07 PM CDTMesoscale DiscussionSPC113 min
Apr 24, 7:46 PM CDTAreal Flood AdvisoryHGX119 min
Apr 24, 8:41 PM CDTFlash Flood WarningHGX3 hr
Apr 26, 11:31 AM CDTWind AdvisoryHGX9 hr
Apr 27, 3:47 PM CDTFlood WatchHGX5 hr
Apr 27, 3:50 PM CDTMesoscale DiscussionSPC85 min
Apr 27, 3:58 PM CDTTornado WatchSPC5 hr
Apr 27, 4:55 PM CDTTornado WarningHGX35 min
Apr 27, 5:21 PM CDTFlash Flood WarningHGX3 hr
Apr 27, 5:52 PM CDTSevere Thunderstorm WarningHGX38 min
Apr 27, 6:02 PM CDTTornado WarningHGX28 min
Apr 27, 6:27 PM CDTSevere Thunderstorm WarningHGX63 min
Apr 27, 7:03 PM CDTFlash Flood WarningHGX117 min
Apr 28, 1:19 AM CDTMesoscale DiscussionSPC86 min
Apr 28, 3:27 AM CDTFlood WatchHGX12 hr
Apr 28, 3:41 AM CDTFlash Flood WarningHGX3 hr
Apr 28, 4:07 AM CDTSevere Thunderstorm WarningHGX53 min
Apr 28, 5:48 AM CDTRiver Flood WarningHGX4 days
Apr 28, 6:27 AM CDTAreal Flood AdvisoryHGX3 hr
Apr 28, 6:29 AM CDTFlash Flood WarningHGX3 hr
May 11, 2:52 PM CDTSevere Thunderstorm WatchSPC5 hr
May 16, 5:13 PM CDTAreal Flood AdvisoryHGX62 min
Jun 24, 4:04 PM CDTHeat AdvisoryHGX5 days
Jun 25, 5:57 PM CDTSpecial Weather StatementHGX63 min
Jun 29, 7:40 PM CDTSpecial Weather StatementHGX65 min
Jun 29, 8:06 PM CDTHeat AdvisoryHGX17 hr
Jul 4, 8:51 AM CDTHeat AdvisoryHGX34 hr
Jul 8, 9:08 PM CDTHeat AdvisoryHGX4 days
Jul 18, 6:12 PM CDTSpecial Weather StatementHGX33 min
Jul 18, 6:42 PM CDTSevere Thunderstorm WarningHGX48 min
Aug 4, 7:03 PM CDTHeat AdvisoryHGX3 days
Aug 10, 3:10 PM CDTHeat AdvisoryHGX24 hr
Aug 12, 6:20 PM CDTSevere Thunderstorm WarningHGX40 min
Aug 12, 6:52 PM CDTSevere Thunderstorm WarningHGX38 min
Aug 13, 5:23 PM CDTSevere Thunderstorm WarningHGX39 min
Aug 21, 4:28 AM CDTHeat AdvisoryHGX40 hr
Aug 21, 5:57 PM CDTSevere Thunderstorm WarningHGX35 min
Aug 21, 6:29 PM CDTSevere Thunderstorm WarningHGX46 min
Aug 21, 7:01 PM CDTSevere Thunderstorm WarningHGX44 min
Aug 22, 7:37 PM CDTSpecial Weather StatementHGX38 min
Aug 22, 7:42 PM CDTSevere Thunderstorm WarningHGX17 min
Aug 23, 2:09 PM CDTMesoscale DiscussionSPC96 min
Aug 24, 4:42 PM CDTSpecial Weather StatementHGX63 min
Aug 24, 5:24 PM CDTSpecial Weather StatementHGX36 min
Aug 25, 2:38 PM CDTMesoscale DiscussionSPC97 min
Aug 26, 10:07 AM CDTMesoscale DiscussionSPC83 min
Aug 26, 10:47 AM CDTSevere Thunderstorm WatchSPC7 hr
Aug 26, 1:54 PM CDTMesoscale DiscussionSPC96 min
Aug 27, 12:34 PM CDTSpecial Weather StatementHGX86 min
Aug 28, 3:08 AM CDTSpecial Weather StatementHGX52 min
Aug 31, 3:03 AM CDTAreal Flood AdvisoryHGX117 min
Sep 27, 1:06 AM CDTDense Fog AdvisoryHGX8 hr
Sep 28, 1:14 PM CDTMesoscale DiscussionSPC3 hr
Oct 4, 1:48 AM CDTMesoscale DiscussionSPC117 min
Oct 8, 9:41 AM CDTWind AdvisoryHGX9 hr
Oct 22, 5:08 AM CDTAreal Flood AdvisoryHGX112 min
Oct 22, 6:46 AM CDTFlash Flood WarningHGX119 min
Oct 25, 3:43 PM CDTFlash Flood WatchHGX24 hr
Oct 27, 10:04 AM CDTRiver Flood WarningHGX5 days
Oct 28, 5:15 AM CDTFlash Flood WatchHGX47 hr
Oct 29, 5:19 AM CDTMesoscale DiscussionSPC86 min
Oct 29, 11:19 AM CDTWind AdvisoryHGX9 hr
Oct 29, 6:46 PM CDTSevere Thunderstorm WarningHGX29 min
Oct 29, 6:59 PM CDTTornado WarningHGX17 min
Oct 29, 8:20 PM CDTFlash Flood WarningHGX3 hr
Oct 30, 9:31 PM CDTRiver Flood WarningHGX24 hr
Nov 6, 9:24 PM CSTDense Fog AdvisoryHGX7 hr
Nov 19, 3:11 PM CSTFlash Flood WatchHGX27 hr
Nov 22, 8:56 PM CSTDense Fog AdvisoryHGX13 hr
Dec 3, 4:55 AM CSTWinter Storm WatchHGX17 hr
Dec 3, 7:43 AM CSTFreeze WarningHGX49 hr
Dec 3, 10:17 PM CSTWinter Storm WarningHGX20 hr
Dec 7, 1:16 AM CSTDense Fog AdvisoryHGX7 hr
Dec 8, 5:07 AM CSTDense Fog AdvisoryHGX5 hr
Dec 12, 3:30 PM CSTDense Fog AdvisoryHGX18 hr
Dec 13, 3:01 PM CSTDense Fog AdvisoryHGX19 hr
Dec 14, 2:56 PM CSTDense Fog AdvisoryHGX18 hr
Dec 23, 8:48 PM CSTTornado WatchSPC9 hr
Dec 23, 9:32 PM CSTWind AdvisoryHGX30 hr
Dec 23, 11:06 PM CSTMesoscale DiscussionSPC114 min
Dec 24, 3:30 AM CSTMesoscale DiscussionSPC2 hr
Dec 30, 11:57 PM CSTDense Fog AdvisoryHGX12 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.