Alert archive / Texas / La Salle County

Weather alerts in La Salle County, Texas, 2011

94 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

La Salle County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts
94
Warnings
41
Watches
22
Advisories
17
Busiest month
February14 alerts
Busiest day
May 12, 20117 alerts

Over time

By month

Warning verification

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

La Salle County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings70100%0
Flash flood warnings00

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Corpus Christi, TX: tornado warnings100100%40%
NWS Corpus Christi, TX: severe thunderstorm warnings521179%4770%40 min
NWS Corpus Christi, TX: flash flood warnings2150%1100%43 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 5, 1:33 AM CSTDense Fog AdvisoryCRP6 hr
Jan 11, 3:45 AM CSTFreeze WarningCRP26 hr
Jan 17, 12:41 AM CSTDense Fog AdvisoryCRP9 hr
Jan 17, 10:03 AM CSTDense Fog AdvisoryCRP112 min
Jan 18, 12:39 AM CSTDense Fog AdvisoryCRP8 hr
Jan 20, 8:30 PM CSTFreeze WarningCRP13 hr
Jan 21, 3:12 PM CSTFreeze WarningCRP18 hr
Jan 25, 12:58 PM CSTRed Flag WarningCRP4 hr
Jan 31, 7:08 AM CSTFire Weather WatchCRP8 hr
Jan 31, 3:22 PM CSTRed Flag WarningCRP29 hr
Jan 31, 3:38 PM CSTHard Freeze WatchCRP13 hr
Feb 1, 4:53 AM CSTHard Freeze WarningCRP33 hr
Feb 1, 4:53 AM CSTWind AdvisoryCRP19 hr
Feb 2, 2:58 PM CSTHard Freeze WarningCRP47 hr
Feb 3, 1:17 PM CSTWinter Weather AdvisoryCRP15 hr
Feb 4, 1:35 PM CSTHard Freeze WarningCRP20 hr
Feb 8, 4:01 PM CSTHard Freeze WatchCRP13 hr
Feb 8, 8:00 PM CSTWind AdvisoryCRP20 hr
Feb 9, 4:33 AM CSTHard Freeze WarningCRP30 hr
Feb 9, 9:19 AM CSTFreezing Rain AdvisoryCRP5 hr
Feb 10, 3:06 PM CSTHard Freeze WarningCRP18 hr
Feb 11, 8:18 PM CSTFreeze WarningCRP13 hr
Feb 26, 5:44 AM CSTFire Weather WatchCRP23 hr
Feb 27, 5:00 AM CSTRed Flag WarningCRP37 hr
Feb 27, 9:19 PM CSTWind AdvisoryCRP9 hr
Mar 5, 5:41 AM CSTRed Flag WarningCRP11 hr
Mar 5, 6:58 AM CSTSevere Thunderstorm WarningCRP62 min
Mar 10, 3:42 AM CSTFire Weather WatchCRP24 hr
Mar 11, 4:10 AM CSTRed Flag WarningCRP14 hr
Mar 29, 2:18 PM CDTMesoscale DiscussionSPC117 min
Mar 29, 3:57 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 29, 5:59 PM CDTMesoscale DiscussionSPC2 hr
Mar 29, 8:17 PM CDTMesoscale DiscussionSPC118 min
Mar 29, 10:15 PM CDTMesoscale DiscussionSPC90 min
Mar 29, 10:47 PM CDTSevere Thunderstorm WatchSPC4 hr
Apr 3, 4:28 AM CDTFire Weather WatchCRP11 hr
Apr 3, 3:56 PM CDTRed Flag WarningCRP30 hr
Apr 4, 3:37 AM CDTWind AdvisoryCRP15 hr
Apr 10, 5:09 AM CDTFire Weather WatchCRP10 hr
Apr 10, 2:45 PM CDTRed Flag WarningCRP30 hr
Apr 14, 4:03 AM CDTFire Weather WatchCRP11 hr
Apr 14, 2:58 PM CDTRed Flag WarningCRP28 hr
Apr 16, 11:44 AM CDTRed Flag WarningCRP4 hr
Apr 25, 4:49 AM CDTFire Weather WatchCRP35 hr
Apr 26, 3:37 PM CDTRed Flag WarningCRP28 hr
Apr 28, 4:46 AM CDTFire Weather WatchCRP10 hr
Apr 28, 2:59 PM CDTRed Flag WarningCRP30 hr
May 9, 5:11 AM CDTRed Flag WarningCRP16 hr
May 12, 2:57 AM CDTMesoscale DiscussionSPC33 min
May 12, 3:18 AM CDTSevere Thunderstorm WatchSPC5 hr
May 12, 7:27 AM CDTMesoscale DiscussionSPC33 min
May 12, 7:52 AM CDTSevere Thunderstorm WatchSPC9 hr
May 12, 9:27 AM CDTSevere Thunderstorm WarningCRP63 min
May 12, 10:29 AM CDTSevere Thunderstorm WarningCRP61 min
May 12, 11:30 AM CDTSevere Thunderstorm WarningCRP60 min
May 13, 4:55 PM CDTMesoscale DiscussionSPC95 min
May 28, 4:54 AM CDTRed Flag WarningCRP16 hr
May 28, 3:24 PM CDTRed Flag WarningCRP29 hr
May 29, 3:15 PM CDTRed Flag WarningCRP29 hr
Jun 16, 9:19 AM CDTRed Flag WarningCRP10 hr
Jun 17, 3:11 PM CDTFire Weather WatchCRP14 hr
Jun 18, 2:38 PM CDTRed Flag WarningCRP30 hr
Jun 19, 3:38 PM CDTRed Flag WarningCRP28 hr
Jun 22, 12:47 AM CDTSevere Thunderstorm WatchSPC3 hr
Jun 22, 3:54 AM CDTMesoscale DiscussionSPC66 min
Jul 19, 8:59 PM CDTAreal Flood AdvisoryCRP76 min
Aug 5, 4:14 AM CDTHeat AdvisoryCRP15 hr
Aug 11, 4:11 AM CDTHeat AdvisoryCRP15 hr
Aug 12, 4:00 AM CDTHeat AdvisoryCRP15 hr
Aug 25, 2:43 PM CDTMesoscale DiscussionSPC62 min
Aug 25, 4:31 PM CDTSevere Thunderstorm WarningCRP59 min
Aug 28, 4:30 AM CDTHeat AdvisoryCRP16 hr
Sep 3, 1:44 PM CDTFire Weather WatchCRP24 hr
Sep 3, 1:44 PM CDTRed Flag WarningCRP31 hr
Sep 4, 1:50 PM CDTRed Flag WarningCRP30 hr
Sep 29, 3:40 PM CDTSevere Thunderstorm WarningCRP16 min
Sep 29, 3:53 PM CDTMesoscale DiscussionSPC2 hr
Oct 9, 1:48 AM CDTSevere Thunderstorm WarningCRP47 min
Oct 9, 2:40 AM CDTMesoscale DiscussionSPC3 hr
Oct 16, 2:40 PM CDTFire Weather WatchCRP24 hr
Oct 17, 2:32 PM CDTRed Flag WarningCRP30 hr
Oct 18, 4:04 AM CDTWind AdvisoryCRP15 hr
Nov 15, 12:02 AM CSTMesoscale DiscussionSPC2 hr
Nov 15, 2:14 AM CSTSevere Thunderstorm WatchSPC7 hr
Nov 15, 5:35 AM CSTMesoscale DiscussionSPC85 min
Nov 15, 10:35 AM CSTMesoscale DiscussionSPC115 min
Nov 25, 3:16 PM CSTFire Weather WatchCRP23 hr
Nov 26, 4:24 AM CSTFreeze WatchCRP35 hr
Nov 26, 2:30 PM CSTRed Flag WarningCRP28 hr
Nov 27, 2:54 PM CSTFreeze WarningCRP17 hr
Dec 5, 3:28 PM CSTFreeze WatchCRP23 hr
Dec 6, 2:32 PM CSTFreeze WarningCRP18 hr
Dec 7, 1:52 PM CSTFreeze WarningCRP19 hr
Dec 13, 2:28 AM CSTDense Fog AdvisoryCRP8 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 archive20102012

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.