Alert archive / Texas / Henderson County

Weather alerts in Henderson County, Texas, 2010

116 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Henderson County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
116
Warnings
43
Watches
16
Advisories
23
Busiest month
October21 alerts
Busiest day
June 10, 201010 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 6 tornado warnings covering Henderson County in 2010 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Henderson County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings60100%10%
Severe thunderstorm warnings16756%1681%15 min
Flash flood warnings6350%0

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Fort Worth, TX: tornado warnings53983%1872%14 min
NWS Fort Worth, TX: severe thunderstorm warnings25211455%29078%26 min
NWS Fort Worth, TX: flash flood warnings854251%9493%93 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 6, 3:42 PM CSTWind AdvisoryFWD26 hr
Jan 6, 9:18 PM CSTWinter Weather AdvisoryFWD11 hr
Jan 16, 11:30 PM CSTDense Fog AdvisoryFWD11 hr
Jan 20, 3:52 PM CSTTornado WatchSPC6 hr
Jan 20, 5:51 PM CSTSpecial Weather StatementFWD24 min
Jan 20, 6:15 PM CSTSpecial Weather StatementFWD30 min
Jan 20, 6:25 PM CSTSevere Thunderstorm WarningFWD35 min
Jan 20, 6:37 PM CSTTornado WarningFWD38 min
Jan 28, 2:36 PM CSTMesoscale DiscussionSPC84 min
Jan 28, 9:49 PM CSTRiver Flood WarningFWD27 days
Jan 31, 10:05 PM CSTFreezing Fog AdvisoryFWD11 hr
Feb 10, 3:45 PM CSTWinter Weather AdvisoryFWD38 hr
Feb 11, 3:00 AM CSTWinter Storm WarningFWD27 hr
Feb 11, 6:51 AM CSTMesoscale DiscussionSPC4 hr
Feb 11, 12:21 PM CSTMesoscale DiscussionSPC4 hr
Feb 11, 6:56 PM CSTMesoscale DiscussionSPC5 hr
Feb 12, 2:58 PM CSTFreezing Fog AdvisoryFWD19 hr
Feb 13, 9:37 AM CSTDense Fog AdvisoryFWD2 hr
Feb 13, 9:40 PM CSTDense Fog AdvisoryFWD12 hr
Feb 21, 3:18 PM CSTWinter Storm WatchFWD22 hr
Feb 22, 1:39 PM CSTWinter Weather AdvisoryFWD31 hr
Feb 23, 12:01 PM CSTMesoscale DiscussionSPC3 hr
Mar 2, 10:30 AM CSTRiver Flood WarningFWD34 hr
Mar 8, 5:18 PM CSTMesoscale DiscussionSPC87 min
Mar 9, 12:01 AM CSTMesoscale DiscussionSPC89 min
Mar 9, 3:23 AM CSTRiver Flood WarningFWD6 days
Mar 10, 8:08 AM CSTSevere Thunderstorm WatchSPC9 hr
Mar 10, 11:01 AM CSTMesoscale DiscussionSPC89 min
Mar 10, 2:05 PM CSTMesoscale DiscussionSPC85 min
Mar 10, 3:12 PM CSTSpecial Weather StatementFWD33 min
Mar 10, 3:16 PM CSTSevere Thunderstorm WarningFWD44 min
Mar 10, 4:28 PM CSTSpecial Weather StatementFWD32 min
Mar 19, 3:18 PM CDTWinter Weather AdvisoryFWD49 hr
Mar 20, 8:06 AM CDTSpecial Weather StatementFWD54 min
Mar 21, 3:09 AM CDTWind AdvisoryFWD15 hr
Mar 21, 10:54 AM CDTRiver Flood WarningFWD23 hr
Mar 25, 10:30 AM CDTRiver Flood WarningFWD5 days
Mar 27, 4:32 AM CDTWind AdvisoryFWD14 hr
Apr 3, 3:06 AM CDTDense Fog AdvisoryFWD5 hr
Apr 23, 8:28 AM CDTMesoscale DiscussionSPC62 min
Apr 23, 2:50 PM CDTMesoscale DiscussionSPC115 min
Apr 23, 5:24 PM CDTMesoscale DiscussionSPC36 min
Apr 23, 5:41 PM CDTTornado WatchSPC9 hr
Apr 24, 1:23 AM CDTSevere Thunderstorm WarningFWD67 min
Apr 29, 3:54 AM CDTWind AdvisoryFWD20 hr
May 1, 5:40 AM CDTMesoscale DiscussionSPC2 hr
May 14, 3:12 PM CDTFlash Flood WarningFWD3 hr
May 14, 6:08 PM CDTAreal Flood WarningFWD3 hr
May 17, 4:42 PM CDTMesoscale DiscussionSPC63 min
May 17, 5:00 PM CDTSevere Thunderstorm WatchSPC7 hr
May 20, 11:28 AM CDTMesoscale DiscussionSPC62 min
May 20, 11:57 AM CDTTornado WatchSPC8 hr
May 20, 2:54 PM CDTSevere Thunderstorm WarningFWD66 min
May 20, 2:57 PM CDTMesoscale DiscussionSPC63 min
May 20, 3:55 PM CDTSevere Thunderstorm WarningFWD65 min
May 20, 5:00 PM CDTSevere Thunderstorm WarningFWD60 min
May 20, 5:11 PM CDTTornado WarningFWD49 min
Jun 3, 1:57 PM CDTSpecial Weather StatementFWD63 min
Jun 8, 3:12 PM CDTFlash Flood WatchFWD52 hr
Jun 9, 8:46 AM CDTTornado WatchSPC7 hr
Jun 10, 1:09 AM CDTAreal Flood AdvisoryFWD2 hr
Jun 10, 2:19 AM CDTFlash Flood WarningFWD116 min
Jun 10, 2:50 AM CDTFlash Flood WarningFWD115 min
Jun 10, 4:14 AM CDTFlash Flood WarningFWD4 hr
Jun 10, 7:30 AM CDTFlash Flood WarningFWD4 hr
Jun 10, 10:42 AM CDTRiver Flood WarningFWD70 hr
Jun 10, 11:23 AM CDTFlash Flood WarningFWD3 hr
Jun 10, 11:29 AM CDTAreal Flood WarningFWD8 hr
Jun 10, 2:04 PM CDTAreal Flood WarningFWD6 hr
Jun 10, 4:20 PM CDTSpecial Weather StatementFWD25 min
Jul 6, 3:13 PM CDTFlash Flood WatchFWD3 days
Jul 14, 3:40 AM CDTHeat AdvisoryFWD5 days
Jul 26, 1:45 PM CDTSevere Thunderstorm WarningFWD45 min
Aug 2, 11:03 AM CDTHeat AdvisoryFWD15 days
Aug 15, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Aug 19, 3:44 AM CDTHeat AdvisoryFWD5 days
Aug 19, 1:39 PM CDTSpecial Weather StatementFWD36 min
Aug 23, 6:08 PM CDTSpecial Weather StatementFWD37 min
Sep 6, 3:24 PM CDTFlash Flood WatchFWD60 hr
Sep 7, 12:12 PM CDTTornado WatchSPC8 hr
Sep 7, 6:00 PM CDTMesoscale DiscussionSPC2 hr
Sep 8, 10:02 AM CDTMesoscale DiscussionSPC88 min
Sep 8, 4:34 PM CDTMesoscale DiscussionSPC86 min
Sep 8, 5:36 PM CDTTornado WatchSPC7 hr
Sep 8, 8:46 PM CDTRiver Flood WarningFWD7 days
Oct 11, 1:56 PM CDTSevere Thunderstorm WarningFWD64 min
Oct 11, 2:22 PM CDTAreal Flood AdvisoryFWD113 min
Oct 11, 2:27 PM CDTMesoscale DiscussionSPC93 min
Oct 11, 3:02 PM CDTSevere Thunderstorm WarningFWD58 min
Oct 11, 3:48 PM CDTSevere Thunderstorm WarningFWD57 min
Oct 23, 11:42 AM CDTMesoscale DiscussionSPC63 min
Oct 23, 12:05 PM CDTTornado WatchSPC8 hr
Oct 23, 3:34 PM CDTTornado WarningFWD41 min
Oct 23, 4:34 PM CDTTornado WarningFWD41 min
Oct 23, 5:12 PM CDTSevere Thunderstorm WarningFWD48 min
Oct 24, 12:51 PM CDTMesoscale DiscussionSPC84 min
Oct 24, 1:51 PM CDTTornado WatchSPC8 hr
Oct 24, 6:12 PM CDTMesoscale DiscussionSPC63 min
Oct 24, 6:19 PM CDTSevere Thunderstorm WarningFWD86 min
Oct 24, 7:01 PM CDTSevere Thunderstorm WarningFWD89 min
Oct 24, 7:20 PM CDTTornado WarningFWD40 min
Oct 24, 8:40 PM CDTSevere Thunderstorm WarningFWD65 min
Oct 24, 9:38 PM CDTSevere Thunderstorm WarningFWD37 min
Oct 24, 9:46 PM CDTTornado WarningFWD14 min
Oct 24, 9:57 PM CDTSevere Thunderstorm WatchSPC6 hr
Oct 25, 3:51 AM CDTWind AdvisoryFWD15 hr
Nov 5, 3:17 PM CDTFreeze WarningFWD18 hr
Nov 12, 3:04 PM CSTSevere Thunderstorm WarningFWD56 min
Nov 24, 11:18 AM CSTWind AdvisoryFWD7 hr
Nov 25, 2:00 AM CSTWind AdvisoryFWD14 hr
Nov 25, 3:44 PM CSTFreeze WarningFWD16 hr
Nov 26, 3:33 PM CSTFreeze WarningFWD16 hr
Nov 29, 4:36 AM CSTFire Weather WatchFWD10 hr
Nov 29, 9:50 AM CSTSpecial Weather StatementFWD25 min
Dec 12, 8:37 AM CSTRed Flag WarningFWD8 hr
Dec 15, 12:06 PM CSTWind AdvisoryFWD6 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 archive20092011

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.