Alert archive / Oklahoma / Cotton County

Weather alerts in Cotton County, Oklahoma, 2024

272 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cotton County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
272
Warnings
86
Watches
39
Advisories
76
Busiest month
May64 alerts
Busiest day
May 28, 202413 alerts

Over time

By month

Warning verification

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

2 of 9 tornado warnings covering Cotton County in 2024 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 10 minutes after it went out.

Cotton County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings9278%1100%10 min
Severe thunderstorm warnings582360%989%27 min
Flash flood warnings4250%0

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Norman, OK: tornado warnings1963582%5575%16 min
NWS Norman, OK: severe thunderstorm warnings98832967%77281%23 min
NWS Norman, OK: flash flood warnings1012179%5682%82 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 3, 11:51 PM CSTFreezing Fog AdvisoryOUN10 hr
Jan 7, 3:36 PM CSTWind AdvisoryOUN45 hr
Jan 11, 2:46 AM CSTWind AdvisoryOUN30 hr
Jan 12, 1:53 PM CSTWind Chill AdvisoryOUN4 days
Jan 18, 5:12 PM CSTWind AdvisoryOUN13 hr
Jan 21, 3:42 AM CSTWinter Weather AdvisoryOUN32 hr
Jan 21, 7:06 PM CSTMesoscale DiscussionSPC4 hr
Jan 22, 12:51 AM CSTMesoscale DiscussionSPC6 hr
Jan 22, 4:19 PM CSTDense Fog AdvisoryOUN20 hr
Jan 23, 2:01 PM CSTDense Fog AdvisoryOUN22 hr
Jan 24, 3:19 PM CSTDense Fog AdvisoryOUN20 hr
Jan 25, 3:12 PM CSTDense Fog AdvisoryOUN21 hr
Feb 2, 8:12 PM CSTSevere Thunderstorm WarningOUN48 min
Feb 2, 9:02 PM CSTSpecial Weather StatementOUN28 min
Feb 9, 10:47 AM CSTWinter Storm WatchOUN27 hr
Feb 10, 2:08 PM CSTWinter Weather AdvisoryOUN39 hr
Feb 10, 7:34 PM CSTRiver Flood AdvisoryOUN36 hr
Feb 25, 2:14 PM CSTFire Weather WatchOUN24 hr
Feb 26, 2:26 PM CSTWind AdvisoryOUN34 hr
Feb 26, 2:43 PM CSTRed Flag WarningOUN29 hr
Mar 1, 3:33 AM CSTDense Fog AdvisoryOUN6 hr
Mar 7, 1:30 PM CSTMesoscale DiscussionSPC2 hr
Mar 7, 2:57 PM CSTSevere Thunderstorm WatchSPC7 hr
Mar 7, 6:00 PM CSTMesoscale DiscussionSPC2 hr
Mar 7, 9:03 PM CSTMesoscale DiscussionSPC57 min
Mar 12, 2:22 AM CDTFire Weather WatchOUN25 hr
Mar 21, 7:22 PM CDTAreal Flood AdvisoryOUN4 hr
Mar 23, 3:04 PM CDTWind AdvisoryOUN34 hr
Mar 24, 2:49 PM CDTSevere Thunderstorm WatchSPC8 hr
Mar 24, 4:37 PM CDTMesoscale DiscussionSPC113 min
Mar 24, 6:36 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN54 min
Mar 24, 6:46 PM CDTMesoscale DiscussionSPC119 min
Mar 24, 7:32 PM CDTSevere Thunderstorm WarningOUN43 min
Apr 1, 1:55 PM CDTMesoscale DiscussionSPC2 hr
Apr 1, 2:13 PM CDTTornado WatchSPC10 hr
Apr 1, 5:53 PM CDTMesoscale DiscussionSPC97 min
Apr 1, 8:20 PM CDTMesoscale DiscussionSPC85 min
Apr 1, 8:29 PM CDTSpecial Weather StatementOUN46 min
Apr 1, 9:21 PM CDTSevere Thunderstorm WarningOUN24 min
Apr 5, 2:32 PM CDTWind AdvisoryOUN31 hr
Apr 9, 9:36 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN39 min
Apr 9, 9:49 PM CDTMesoscale DiscussionSPC56 min
Apr 9, 10:12 PM CDTSevere Thunderstorm WarningOUN48 min
Apr 15, 2:31 PM CDTTornado WatchSPC6 hr
Apr 15, 5:28 PM CDTWind AdvisoryOUN9 hr
Apr 15, 6:32 PM CDTMesoscale DiscussionSPC88 min
Apr 26, 2:43 AM CDTMesoscale DiscussionSPC2 hr
Apr 26, 2:56 AM CDTSevere Thunderstorm WarningOUN49 min
Apr 26, 3:27 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 26, 10:55 AM CDTFlood WatchOUN50 hr
Apr 27, 12:55 PM CDTSevere Thunderstorm WarningOUN50 min
Apr 27, 1:10 PM CDTTornado Watch PDSSPC7 hr
Apr 27, 1:13 PM CDTMesoscale DiscussionSPC92 min
Apr 27, 3:19 PM CDTMesoscale DiscussionSPC86 min
Apr 27, 3:40 PM CDTRiver Flood AdvisoryOUN17 hr
Apr 27, 3:41 PM CDTRiver Flood AdvisoryOUN17 hr
Apr 27, 5:26 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN49 min
Apr 27, 5:51 PM CDTMesoscale DiscussionSPC84 min
Apr 27, 6:35 PM CDTSevere Thunderstorm WarningOUN40 min
Apr 27, 6:44 PM CDTTornado WarningOUN46 min
Apr 27, 7:12 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN48 min
Apr 27, 7:24 PM CDTTornado WarningOUN36 min
Apr 27, 7:30 PM CDTMesoscale DiscussionSPC60 min
Apr 27, 7:36 PM CDTTornado WarningOUN39 min
Apr 27, 7:50 PM CDTTornado WatchSPC7 hr
Apr 27, 7:51 PM CDTAreal Flood AdvisoryOUN3 hr
Apr 27, 7:56 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN49 min
Apr 27, 8:45 PM CDTSevere Thunderstorm WarningOUN45 min
Apr 27, 9:21 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN39 min
Apr 27, 9:46 PM CDTFlash Flood WarningOUN5 hr
Apr 27, 9:54 PM CDTSevere Thunderstorm WarningOUN51 min
Apr 30, 9:44 PM CDTTornado Warning Tornado observedConsiderable damage threatOUN46 min
Apr 30, 10:10 PM CDTTornado WarningOUN50 min
Apr 30, 10:27 PM CDTTornado WatchSPC93 min
Apr 30, 10:47 PM CDTFlash Flood WarningOUN3 hr
Apr 30, 10:49 PM CDTTornado WarningOUN41 min
Apr 30, 11:13 PM CDTSevere Thunderstorm WarningOUN62 min
Apr 30, 11:26 PM CDTFlash Flood WarningOUN3 hr
Apr 30, 11:56 PM CDTSevere Thunderstorm WatchSPC5 hr
May 1, 12:06 AM CDTSevere Thunderstorm WarningOUN39 min
May 1, 9:50 AM CDTRiver Flood AdvisoryOUN4 hr
May 1, 12:16 PM CDTFlood WatchOUN19 hr
May 1, 2:10 PM CDTRiver Flood WarningOUN72 hr
May 1, 10:24 PM CDTMesoscale DiscussionSPC2 hr
May 1, 10:42 PM CDTSevere Thunderstorm WatchSPC5 hr
May 1, 11:21 PM CDTSevere Thunderstorm Warning Destructive damage threatOUN39 min
May 1, 11:25 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN50 min
May 2, 12:06 AM CDTSevere Thunderstorm Warning Considerable damage threatOUN39 min
May 2, 12:39 AM CDTSevere Thunderstorm Warning Destructive damage threatOUN51 min
May 2, 8:19 AM CDTRiver Flood AdvisoryOUN18 hr
May 2, 1:14 PM CDTFlood WatchOUN18 hr
May 2, 6:08 PM CDTMesoscale DiscussionSPC2 hr
May 3, 8:07 AM CDTRiver Flood WarningOUN28 hr
May 3, 1:19 PM CDTFlood WatchOUN48 hr
May 3, 7:25 PM CDTSevere Thunderstorm WarningOUN50 min
May 3, 7:27 PM CDTMesoscale DiscussionSPC2 hr
May 3, 8:13 PM CDTSpecial Weather StatementOUN32 min
May 6, 11:47 AM CDTMesoscale DiscussionSPC118 min
May 6, 2:05 PM CDTTornado Watch PDSSPC12 hr
May 6, 10:59 PM CDTMesoscale DiscussionSPC91 min
May 6, 11:13 PM CDTSpecial Weather StatementOUN32 min
May 6, 11:55 PM CDTSpecial Weather StatementOUN35 min
May 9, 12:09 PM CDTSevere Thunderstorm WarningOUN51 min
May 9, 12:25 PM CDTSevere Thunderstorm WatchSPC7 hr
May 9, 12:51 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN54 min
May 16, 3:46 AM CDTMesoscale DiscussionSPC89 min
May 16, 4:01 AM CDTSevere Thunderstorm WarningOUN27 min
May 23, 12:36 AM CDTSpecial Weather StatementOUN24 min
May 23, 4:30 PM CDTTornado WatchSPC7 hr
May 25, 2:56 PM CDTMesoscale DiscussionSPC4 hr
May 25, 3:26 PM CDTTornado Watch PDSSPC11 hr
May 25, 4:22 PM CDTSevere Thunderstorm WarningOUN38 min
May 25, 4:31 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN29 min
May 25, 4:57 PM CDTSevere Thunderstorm WarningOUN48 min
May 25, 5:13 PM CDTSevere Thunderstorm WarningOUN32 min
May 25, 5:40 PM CDTMesoscale DiscussionSPC95 min
May 25, 5:47 PM CDTSpecial Weather StatementOUN28 min
May 27, 11:52 PM CDTMesoscale DiscussionSPC113 min
May 28, 12:49 AM CDTSevere Thunderstorm WarningOUN41 min
May 28, 12:58 AM CDTSevere Thunderstorm WatchSPC6 hr
May 28, 1:30 AM CDTSevere Thunderstorm WarningOUN45 min
May 28, 1:49 AM CDTMesoscale DiscussionSPC86 min
May 28, 1:55 AM CDTSevere Thunderstorm WarningOUN24 min
May 28, 4:29 AM CDTSevere Thunderstorm WarningOUN46 min
May 28, 5:01 AM CDTSevere Thunderstorm WarningOUN44 min
May 28, 5:16 AM CDTFlash Flood WarningOUN3 hr
May 28, 5:40 AM CDTSevere Thunderstorm WarningOUN50 min
May 28, 5:48 AM CDTAreal Flood AdvisoryOUN3 hr
May 28, 5:55 AM CDTMesoscale DiscussionSPC65 min
May 28, 12:09 PM CDTMesoscale DiscussionSPC2 hr
May 30, 6:38 AM CDTSpecial Weather StatementOUN52 min
May 30, 6:53 AM CDTSevere Thunderstorm WarningOUN52 min
May 30, 7:38 AM CDTSpecial Weather StatementOUN52 min
May 30, 1:36 PM CDTFlood WatchOUN16 hr
May 31, 12:24 AM CDTSpecial Weather StatementOUN51 min
Jun 2, 10:37 AM CDTSevere Thunderstorm WarningOUN38 min
Jun 2, 10:40 AM CDTMesoscale DiscussionSPC95 min
Jun 2, 10:56 AM CDTSevere Thunderstorm WarningOUN49 min
Jun 2, 11:15 AM CDTAreal Flood AdvisoryOUN6 hr
Jun 2, 11:16 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 11:31 AM CDTSpecial Weather StatementOUN29 min
Jun 2, 11:47 AM CDTSpecial Weather StatementOUN28 min
Jun 2, 11:58 AM CDTAreal Flood AdvisoryOUN4 hr
Jun 2, 12:22 PM CDTSpecial Weather StatementOUN53 min
Jun 2, 1:08 PM CDTSpecial Weather StatementOUN37 min
Jun 2, 2:11 PM CDTAreal Flood AdvisoryOUN5 hr
Jun 2, 8:19 PM CDTRiver Flood AdvisoryOUN12 hr
Jun 3, 8:43 AM CDTRiver Flood WarningOUN36 hr
Jun 3, 3:04 PM CDTFlood WatchOUN16 hr
Jun 4, 4:13 PM CDTMesoscale DiscussionSPC2 hr
Jun 4, 4:55 PM CDTSevere Thunderstorm WatchSPC10 hr
Jun 4, 10:32 PM CDTSevere Thunderstorm WarningOUN43 min
Jun 4, 11:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 4, 11:41 PM CDTSpecial Weather StatementOUN34 min
Jun 5, 12:20 AM CDTSpecial Weather StatementOUN25 min
Jun 9, 2:35 PM CDTMesoscale DiscussionSPC115 min
Jun 9, 7:06 PM CDTSpecial Weather StatementOUN39 min
Jun 24, 2:14 AM CDTHeat AdvisoryOUN43 hr
Jun 25, 1:59 AM CDTHeat AdvisoryOUN43 hr
Jun 25, 12:41 PM CDTExcessive Heat WarningOUN32 hr
Jun 26, 1:48 PM CDTHeat AdvisoryOUN31 hr
Jun 26, 6:07 PM CDTSpecial Weather StatementOUN23 min
Jun 26, 6:19 PM CDTMesoscale DiscussionSPC86 min
Jun 26, 6:31 PM CDTSpecial Weather StatementOUN29 min
Jun 26, 6:35 PM CDTSevere Thunderstorm WarningOUN40 min
Jun 26, 7:08 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN52 min
Jun 26, 7:13 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 27, 12:43 PM CDTHeat AdvisoryOUN32 hr
Jun 27, 2:26 PM CDTExcessive Heat WarningOUN7 hr
Jun 28, 1:50 PM CDTExcessive Heat WarningOUN31 hr
Jun 30, 2:27 AM CDTHeat AdvisoryOUN17 hr
Jun 30, 2:17 PM CDTHeat AdvisoryOUN31 hr
Jul 1, 2:22 PM CDTHeat AdvisoryOUN31 hr
Jul 2, 1:41 PM CDTHeat AdvisoryOUN31 hr
Jul 3, 2:34 AM CDTHeat AdvisoryOUN42 hr
Jul 4, 10:36 AM CDTExcessive Heat WarningOUN10 hr
Jul 4, 7:07 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN38 min
Jul 4, 7:42 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN30 min
Jul 4, 7:52 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN23 min
Jul 4, 11:12 PM CDTSpecial Weather StatementOUN33 min
Jul 6, 2:31 AM CDTFlood WatchOUN49 hr
Jul 7, 3:34 PM CDTMesoscale DiscussionSPC116 min
Jul 7, 5:20 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 7, 7:42 PM CDTMesoscale DiscussionSPC2 hr
Jul 7, 8:03 PM CDTSevere Thunderstorm WarningOUN42 min
Jul 7, 8:37 PM CDTSevere Thunderstorm WarningOUN38 min
Jul 7, 9:38 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN52 min
Jul 14, 1:02 PM CDTHeat AdvisoryOUN31 hr
Jul 15, 1:46 PM CDTHeat AdvisoryOUN30 hr
Jul 28, 2:37 PM CDTHeat AdvisoryOUN30 hr
Jul 29, 2:40 PM CDTHeat AdvisoryOUN30 hr
Jul 30, 1:52 PM CDTHeat AdvisoryOUN31 hr
Jul 31, 1:53 PM CDTHeat AdvisoryOUN31 hr
Aug 1, 2:07 PM CDTHeat AdvisoryOUN29 hr
Aug 6, 2:25 PM CDTHeat AdvisoryOUN31 hr
Aug 7, 1:49 PM CDTHeat AdvisoryOUN31 hr
Aug 11, 1:19 AM CDTHeat AdvisoryOUN19 hr
Aug 11, 1:35 PM CDTHeat AdvisoryOUN30 hr
Aug 12, 1:47 PM CDTHeat AdvisoryOUN30 hr
Aug 13, 2:54 PM CDTHeat AdvisoryOUN29 hr
Aug 14, 2:34 PM CDTHeat AdvisoryOUN29 hr
Aug 15, 1:53 PM CDTHeat AdvisoryOUN30 hr
Aug 15, 10:08 PM CDTSevere Thunderstorm WarningOUN41 min
Aug 16, 2:41 PM CDTExcessive Heat WarningOUN30 hr
Aug 17, 3:11 PM CDTHeat AdvisoryOUN30 hr
Aug 18, 2:22 PM CDTHeat AdvisoryOUN31 hr
Aug 19, 2:31 PM CDTHeat AdvisoryOUN30 hr
Aug 20, 1:37 PM CDTHeat AdvisoryOUN30 hr
Aug 21, 3:02 PM CDTHeat AdvisoryOUN29 hr
Aug 22, 2:52 PM CDTExcessive Heat WarningOUN29 hr
Aug 23, 3:11 PM CDTExcessive Heat WarningOUN30 hr
Aug 24, 2:39 PM CDTHeat AdvisoryOUN28 hr
Sep 20, 2:03 AM CDTHeat AdvisoryOUN16 hr
Sep 22, 6:41 PM CDTAreal Flood AdvisoryOUN4 hr
Sep 22, 6:45 PM CDTSpecial Weather StatementOUN30 min
Sep 24, 2:06 AM CDTDense Fog AdvisoryOUN9 hr
Sep 24, 3:55 PM CDTMesoscale DiscussionSPC2 hr
Oct 15, 11:29 AM CDTRed Flag WarningOUN10 hr
Oct 27, 3:02 AM CDTFire Weather WatchOUN24 hr
Oct 27, 1:35 PM CDTWind AdvisoryOUN54 hr
Oct 27, 2:08 PM CDTRed Flag WarningOUN30 hr
Oct 30, 10:13 PM CDTSpecial Weather StatementOUN47 min
Nov 1, 1:54 PM CDTFlood WatchOUN3 days
Nov 2, 12:52 PM CDTMesoscale DiscussionSPC113 min
Nov 2, 8:12 PM CDTRiver Flood AdvisoryOUN48 hr
Nov 2, 8:14 PM CDTRiver Flood AdvisoryOUN13 hr
Nov 2, 8:30 PM CDTMesoscale DiscussionSPC3 hr
Nov 2, 11:27 PM CDTAreal Flood AdvisoryOUN3 hr
Nov 2, 11:32 PM CDTSpecial Weather StatementOUN28 min
Nov 2, 11:43 PM CDTSevere Thunderstorm WarningOUN47 min
Nov 2, 11:50 PM CDTSevere Thunderstorm WatchSPC5 hr
Nov 3, 1:37 AM CDTMesoscale DiscussionSPC113 min
Nov 3, 1:38 AM CDTSevere Thunderstorm WarningOUN52 min
Nov 3, 1:30 AM CSTSevere Thunderstorm Warning Considerable damage threatOUN45 min
Nov 3, 1:40 AM CSTTornado WatchSPC5 hr
Nov 3, 11:51 AM CSTSevere Thunderstorm WatchSPC5 hr
Nov 3, 1:13 PM CSTMesoscale DiscussionSPC92 min
Nov 3, 9:39 PM CSTSpecial Weather StatementOUN36 min
Nov 3, 11:48 PM CSTAreal Flood AdvisoryOUN3 hr
Nov 4, 4:19 AM CSTSevere Thunderstorm WarningOUN41 min
Nov 4, 4:20 AM CSTTornado WarningOUN25 min
Nov 4, 5:01 AM CSTMesoscale DiscussionSPC119 min
Nov 4, 8:37 AM CSTMesoscale DiscussionSPC2 hr
Nov 7, 1:55 AM CSTFlood WatchOUN43 hr
Nov 7, 1:54 PM CSTRiver Flood WatchOUN23 hr
Nov 7, 1:55 PM CSTRiver Flood AdvisoryOUN70 hr
Nov 7, 2:01 PM CSTRiver Flood AdvisoryOUN5 days
Nov 8, 11:50 AM CSTSpecial Weather StatementOUN25 min
Nov 8, 1:21 PM CSTSpecial Weather StatementOUN24 min
Nov 8, 1:22 PM CSTRiver Flood WarningOUN66 hr
Nov 8, 1:34 PM CSTSevere Thunderstorm WarningOUN26 min
Nov 8, 1:36 PM CSTTornado WarningOUN24 min
Nov 8, 1:47 PM CSTTornado WatchSPC7 hr
Nov 8, 1:56 PM CSTTornado WarningOUN16 min
Nov 8, 1:59 PM CSTSevere Thunderstorm WarningOUN46 min
Nov 8, 2:13 PM CSTAreal Flood AdvisoryOUN3 hr
Nov 8, 2:25 PM CSTSevere Thunderstorm WarningOUN50 min
Nov 16, 1:24 PM CSTFlood WatchOUN46 hr
Nov 17, 1:57 PM CSTWind AdvisoryOUN28 hr
Nov 17, 2:15 PM CSTRiver Flood AdvisoryOUN62 hr
Nov 17, 2:15 PM CSTRiver Flood AdvisoryOUN66 hr
Nov 17, 7:35 PM CSTRiver Flood AdvisoryOUN21 days
Nov 18, 2:02 AM CSTMesoscale DiscussionSPC88 min
Nov 18, 2:02 AM CSTTornado WatchSPC7 hr
Nov 18, 4:09 AM CSTMesoscale DiscussionSPC2 hr
Nov 18, 4:39 AM CSTSevere Thunderstorm WarningOUN51 min
Nov 18, 5:26 AM CSTSevere Thunderstorm WarningOUN49 min
Nov 18, 6:12 AM CSTSevere Thunderstorm WarningOUN48 min
Nov 25, 1:22 PM CSTFreeze WarningOUN20 hr
Dec 8, 1:20 PM CSTDense Fog AdvisoryOUN22 hr
Dec 16, 12:40 AM CSTDense Fog AdvisoryOUN7 hr
Dec 26, 1:26 PM CSTDense Fog AdvisoryOUN22 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 archive20232025

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.