Alert archive / Texas / Grayson County

Weather alerts in Grayson County, Texas, 2013

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

Grayson County and its neighbors

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

Alerts
114
Warnings
16
Watches
17
Advisories
25
Busiest month
May27 alerts
Busiest day
May 21, 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.

Grayson County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10460%6100%24 min
Flash flood warnings00

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Fort Worth, TX: tornado warnings35877%1292%29 min
NWS Fort Worth, TX: severe thunderstorm warnings27210362%27379%27 min
NWS Fort Worth, TX: flash flood warnings271063%1688%160 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 12, 10:26 PM CSTSpecial Weather StatementFWD64 min
Jan 15, 4:08 AM CSTWinter Weather AdvisoryFWD10 hr
Jan 24, 6:12 AM CSTDense Fog AdvisoryFWD4 hr
Jan 25, 3:42 AM CSTDense Fog AdvisoryFWD4 hr
Jan 26, 9:27 PM CSTDense Fog AdvisoryFWD12 hr
Jan 29, 9:46 AM CSTMesoscale DiscussionSPC119 min
Jan 29, 10:37 AM CSTMesoscale DiscussionSPC53 min
Jan 29, 10:59 AM CSTTornado WatchSPC8 hr
Jan 29, 2:15 PM CSTMesoscale DiscussionSPC2 hr
Feb 5, 2:43 AM CSTDense Fog AdvisoryFWD8 hr
Feb 6, 1:07 AM CSTDense Fog AdvisoryFWD9 hr
Feb 9, 11:37 PM CSTSevere Thunderstorm WatchSPC6 hr
Feb 10, 2:42 AM CSTSevere Thunderstorm WarningFWD63 min
Feb 24, 3:34 AM CSTWind AdvisoryFWD48 hr
Mar 4, 9:18 PM CSTWind AdvisoryFWD15 hr
Mar 9, 1:46 PM CSTSevere Thunderstorm WatchSPC9 hr
Mar 9, 3:34 PM CSTMesoscale DiscussionSPC86 min
Mar 9, 5:41 PM CSTMesoscale DiscussionSPC94 min
Mar 9, 5:58 PM CSTSpecial Weather StatementFWD32 min
Mar 9, 6:23 PM CSTSevere Thunderstorm WarningFWD67 min
Mar 9, 11:27 PM CSTAreal Flood AdvisoryFWD3 hr
Mar 23, 3:39 PM CDTWind AdvisoryFWD24 hr
Mar 24, 11:20 AM CDTFreeze WarningFWD22 hr
Mar 25, 4:14 AM CDTFreeze WarningFWD29 hr
Mar 29, 9:24 PM CDTMesoscale DiscussionSPC96 min
Mar 29, 10:30 PM CDTSevere Thunderstorm WatchSPC5 hr
Mar 30, 1:21 AM CDTMesoscale DiscussionSPC114 min
Mar 30, 6:06 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 31, 4:54 AM CDTMesoscale DiscussionSPC96 min
Mar 31, 5:10 AM CDTSevere Thunderstorm WatchSPC7 hr
Mar 31, 6:43 AM CDTSpecial Weather StatementFWD32 min
Mar 31, 6:48 AM CDTSevere Thunderstorm WarningFWD42 min
Mar 31, 7:29 AM CDTSevere Thunderstorm WarningFWD31 min
Apr 9, 9:01 PM CDTMesoscale DiscussionSPC89 min
Apr 15, 2:50 PM CDTMesoscale DiscussionSPC85 min
Apr 15, 3:41 PM CDTTornado WatchSPC6 hr
Apr 15, 7:04 PM CDTMesoscale DiscussionSPC41 min
Apr 17, 10:47 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 18, 3:36 AM CDTSpecial Weather StatementFWD54 min
Apr 18, 4:29 AM CDTMesoscale DiscussionSPC91 min
May 1, 2:44 PM CDTWind AdvisoryFWD30 hr
May 3, 3:50 AM CDTWind AdvisoryFWD12 hr
May 15, 2:59 PM CDTMesoscale DiscussionSPC91 min
May 15, 3:04 PM CDTMesoscale DiscussionSPC86 min
May 15, 3:28 PM CDTSevere Thunderstorm WatchSPC9 hr
May 15, 6:01 PM CDTTornado WatchSPC8 hr
May 15, 7:40 PM CDTMesoscale DiscussionSPC65 min
May 15, 9:02 PM CDTMesoscale DiscussionSPC88 min
May 16, 8:04 AM CDTSevere Thunderstorm WarningFWD56 min
May 16, 8:22 AM CDTSpecial Weather StatementFWD23 min
May 20, 12:26 PM CDTMesoscale DiscussionSPC2 hr
May 20, 1:19 PM CDTMesoscale DiscussionSPC116 min
May 20, 2:21 PM CDTTornado WatchSPC8 hr
May 20, 6:33 PM CDTMesoscale DiscussionSPC57 min
May 20, 8:45 PM CDTMesoscale DiscussionSPC60 min
May 21, 8:12 AM CDTMesoscale DiscussionSPC93 min
May 21, 10:09 AM CDTMesoscale DiscussionSPC96 min
May 21, 10:26 AM CDTTornado WatchSPC10 hr
May 21, 1:19 PM CDTMesoscale DiscussionSPC116 min
May 21, 1:44 PM CDTSevere Thunderstorm WarningFWD61 min
May 21, 2:44 PM CDTSevere Thunderstorm WarningFWD61 min
May 21, 3:18 PM CDTAreal Flood AdvisoryFWD3 hr
May 23, 8:52 AM CDTMesoscale DiscussionSPC53 min
May 25, 5:32 PM CDTSpecial Weather StatementFWD28 min
May 29, 6:36 PM CDTMesoscale DiscussionSPC84 min
May 29, 6:51 PM CDTSevere Thunderstorm WarningFWD54 min
May 30, 2:51 PM CDTTornado WatchSPC6 hr
Jun 4, 7:55 AM CDTSpecial Weather StatementFWD65 min
Jun 5, 3:55 AM CDTSpecial Weather StatementFWD35 min
Jun 5, 7:56 AM CDTSpecial Weather StatementFWD34 min
Jun 6, 4:44 AM CDTSpecial Weather StatementFWD31 min
Jun 6, 4:55 AM CDTAreal Flood AdvisoryFWD2 hr
Jun 17, 4:17 AM CDTMesoscale DiscussionSPC118 min
Jun 17, 6:54 AM CDTSpecial Weather StatementFWD66 min
Jul 23, 4:56 PM CDTMesoscale DiscussionSPC2 hr
Jul 24, 2:32 AM CDTMesoscale DiscussionSPC88 min
Jul 24, 4:47 AM CDTMesoscale DiscussionSPC58 min
Jul 26, 2:07 PM CDTMesoscale DiscussionSPC113 min
Jul 26, 3:37 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 5, 12:48 PM CDTHeat AdvisoryFWD3 days
Aug 8, 6:23 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 8, 8:27 PM CDTMesoscale DiscussionSPC93 min
Aug 9, 5:02 PM CDTMesoscale DiscussionSPC118 min
Aug 13, 1:04 PM CDTMesoscale DiscussionSPC2 hr
Aug 16, 2:35 AM CDTSpecial Weather StatementFWD55 min
Sep 28, 1:03 PM CDTSpecial Weather StatementFWD27 min
Sep 28, 1:50 PM CDTSpecial Weather StatementFWD25 min
Oct 5, 12:45 PM CDTMesoscale DiscussionSPC3 hr
Oct 5, 4:24 PM CDTSpecial Weather StatementFWD36 min
Oct 12, 3:14 PM CDTSpecial Weather StatementFWD31 min
Oct 26, 3:06 PM CDTMesoscale DiscussionSPC84 min
Oct 26, 5:29 PM CDTSevere Thunderstorm WarningFWD61 min
Oct 26, 6:26 PM CDTSevere Thunderstorm WarningFWD64 min
Oct 27, 9:57 PM CDTDense Fog AdvisoryFWD12 hr
Nov 6, 2:08 PM CSTFrost AdvisoryFWD19 hr
Nov 11, 2:08 PM CSTFreeze WarningFWD44 hr
Nov 21, 4:59 PM CSTMesoscale DiscussionSPC91 min
Nov 21, 8:11 PM CSTAreal Flood AdvisoryFWD3 hr
Nov 22, 3:52 AM CSTWinter Storm WatchFWD35 hr
Nov 23, 4:18 AM CSTWinter Storm WarningFWD40 hr
Nov 24, 7:57 PM CSTWinter Weather AdvisoryFWD16 hr
Dec 1, 11:20 PM CSTDense Fog AdvisoryFWD11 hr
Dec 2, 10:11 PM CSTDense Fog AdvisoryFWD14 hr
Dec 3, 3:55 PM CSTWinter Storm WatchFWD23 hr
Dec 4, 3:12 PM CSTWinter Storm WarningFWD48 hr
Dec 5, 12:00 PM CSTMesoscale DiscussionSPC5 hr
Dec 5, 6:28 PM CSTMesoscale DiscussionSPC5 hr
Dec 6, 2:06 AM CSTMesoscale DiscussionSPC4 hr
Dec 6, 6:46 AM CSTMesoscale DiscussionSPC5 hr
Dec 6, 3:20 PM CSTWind Chill AdvisoryFWD13 hr
Dec 6, 3:28 PM CSTHard Freeze WarningFWD13 hr
Dec 7, 6:50 PM CSTFreezing Fog AdvisoryFWD17 hr
Dec 8, 6:00 PM CSTFreezing Fog AdvisoryFWD18 hr
Dec 13, 8:43 PM CSTDense Fog AdvisoryFWD10 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 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.