Alert archive / Oklahoma / Jefferson County

Weather alerts in Jefferson County, Oklahoma, 2010

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

Jefferson County and its neighbors

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

Alerts
110
Warnings
31
Watches
20
Advisories
37
Busiest month
May21 alerts
Busiest day
May 10, 20105 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 2 tornado warnings covering Jefferson County in 2010 had a tornado report inside them.

Jefferson County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings220%0
Severe thunderstorm warnings16944%367%31 min
Flash flood warnings00

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Norman, OK: tornado warnings733256%5192%24 min
NWS Norman, OK: severe thunderstorm warnings37915759%40673%26 min
NWS Norman, OK: flash flood warnings351460%2789%92 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, 3:31 AM CSTWind Chill AdvisoryOUN3 days
Jan 6, 6:31 PM CSTWinter Weather AdvisoryOUN10 hr
Jan 15, 3:21 AM CSTDense Fog AdvisoryOUN10 hr
Jan 15, 8:50 PM CSTDense Fog AdvisoryOUN12 hr
Jan 16, 8:06 PM CSTDense Fog AdvisoryOUN16 hr
Jan 20, 8:23 PM CSTSevere Thunderstorm WarningOUN52 min
Jan 20, 8:57 PM CSTSevere Thunderstorm WarningOUN48 min
Jan 23, 3:35 PM CSTMesoscale DiscussionSPC55 min
Jan 25, 11:36 AM CSTWinter Storm WatchOUN63 hr
Jan 27, 3:50 AM CSTWinter Storm WarningOUN56 hr
Jan 28, 3:03 AM CSTWinter Weather AdvisoryOUN43 hr
Jan 30, 3:03 PM CSTFreezing Fog AdvisoryOUN21 hr
Jan 31, 3:06 PM CSTFreezing Fog AdvisoryOUN21 hr
Feb 2, 9:32 PM CSTFreezing Fog AdvisoryOUN12 hr
Feb 4, 5:30 PM CSTDense Fog AdvisoryOUN13 hr
Feb 10, 4:03 PM CSTWinter Weather AdvisoryOUN30 hr
Feb 11, 6:51 AM CSTMesoscale DiscussionSPC4 hr
Feb 11, 9:06 AM CSTWinter Storm WarningOUN15 hr
Feb 12, 9:10 PM CSTDense Fog AdvisoryOUN12 hr
Feb 14, 3:23 AM CSTDense Fog AdvisoryOUN4 hr
Mar 8, 1:42 PM CSTMesoscale DiscussionSPC93 min
Mar 10, 4:37 AM CSTRed Flag WarningOUN13 hr
Mar 10, 7:44 AM CSTMesoscale DiscussionSPC2 hr
Mar 17, 3:16 AM CDTDense Fog AdvisoryOUN8 hr
Mar 18, 3:20 PM CDTWinter Storm WatchOUN37 hr
Mar 19, 3:46 PM CDTWinter Weather AdvisoryOUN46 hr
Mar 19, 8:51 PM CDTSevere Thunderstorm WarningOUN29 min
Mar 26, 8:51 AM CDTFire Weather WatchOUN26 hr
Mar 26, 2:40 PM CDTWind AdvisoryOUN28 hr
Mar 29, 4:32 AM CDTFire Weather WatchOUN24 hr
Mar 29, 4:00 PM CDTRed Flag WarningOUN29 hr
Mar 30, 4:34 AM CDTFire Weather WatchOUN24 hr
Apr 1, 3:09 PM CDTFire Weather WatchOUN12 hr
Apr 1, 11:50 PM CDTMesoscale DiscussionSPC85 min
Apr 2, 3:11 AM CDTRed Flag WarningOUN17 hr
Apr 2, 6:12 AM CDTMesoscale DiscussionSPC63 min
Apr 2, 6:17 AM CDTSevere Thunderstorm WatchSPC4 hr
Apr 6, 4:50 AM CDTWind AdvisoryOUN14 hr
Apr 6, 8:53 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 6, 11:22 PM CDTSevere Thunderstorm WarningOUN53 min
Apr 7, 2:19 PM CDTFrost AdvisoryOUN19 hr
Apr 16, 10:29 AM CDTFlood WatchOUN19 hr
May 7, 4:16 AM CDTWind AdvisoryOUN9 hr
May 9, 3:42 PM CDTMesoscale DiscussionSPC2 hr
May 10, 1:25 PM CDTTornado Watch PDSSPC9 hr
May 10, 4:51 PM CDTSevere Thunderstorm WarningOUN54 min
May 10, 5:40 PM CDTSevere Thunderstorm WarningOUN35 min
May 10, 5:49 PM CDTTornado WarningOUN26 min
May 10, 5:56 PM CDTTornado WarningOUN49 min
May 10, 8:05 PM CDTSevere Thunderstorm WarningOUN55 min
May 11, 3:47 PM CDTTornado WatchSPC6 hr
May 13, 1:59 AM CDTMesoscale DiscussionSPC31 min
May 13, 2:04 AM CDTSevere Thunderstorm WatchSPC4 hr
May 13, 2:21 AM CDTSevere Thunderstorm WarningOUN39 min
May 13, 2:46 AM CDTSevere Thunderstorm WarningOUN59 min
May 13, 5:02 AM CDTMesoscale DiscussionSPC28 min
May 14, 2:06 AM CDTSevere Thunderstorm WarningOUN39 min
May 14, 3:46 AM CDTAreal Flood AdvisoryOUN3 hr
May 14, 8:45 AM CDTAreal Flood WarningOUN4 hr
May 14, 8:58 AM CDTFlood WatchOUN30 hr
May 19, 1:22 PM CDTMesoscale DiscussionSPC113 min
May 19, 3:20 PM CDTMesoscale DiscussionSPC85 min
May 19, 7:32 PM CDTMesoscale DiscussionSPC58 min
Jun 13, 2:14 PM CDTFlash Flood WatchOUN38 hr
Jun 14, 1:17 PM CDTMesoscale DiscussionSPC58 min
Jun 14, 1:34 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 14, 3:23 PM CDTMesoscale DiscussionSPC67 min
Jun 27, 5:47 PM CDTAreal Flood AdvisoryOUN3 hr
Jun 28, 5:32 AM CDTAreal Flood AdvisoryOUN4 hr
Jul 6, 8:19 PM CDTRiver Flood WarningOUN42 hr
Jul 7, 4:12 AM CDTFlash Flood WatchOUN72 hr
Jul 8, 4:39 PM CDTAreal Flood AdvisoryOUN3 hr
Jul 9, 2:31 PM CDTAreal Flood AdvisoryOUN3 hr
Jul 9, 8:38 PM CDTRiver Flood WarningOUN70 hr
Jul 13, 12:27 PM CDTHeat AdvisoryOUN55 hr
Jul 14, 5:28 AM CDTExcessive Heat WarningOUN38 hr
Jul 16, 4:13 AM CDTHeat AdvisoryOUN63 hr
Aug 5, 12:36 PM CDTHeat AdvisoryOUN10 days
Aug 15, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Aug 20, 4:23 AM CDTHeat AdvisoryOUN39 hr
Aug 21, 8:33 PM CDTAreal Flood AdvisoryOUN3 hr
Aug 22, 4:30 AM CDTHeat AdvisoryOUN39 hr
Aug 23, 4:05 PM CDTSevere Thunderstorm WarningOUN55 min
Sep 2, 3:29 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 2, 6:41 PM CDTMesoscale DiscussionSPC94 min
Sep 2, 8:20 PM CDTSevere Thunderstorm WarningOUN55 min
Sep 2, 9:07 PM CDTSevere Thunderstorm WarningOUN68 min
Sep 2, 9:18 PM CDTMesoscale DiscussionSPC87 min
Sep 7, 3:54 AM CDTFlash Flood WatchOUN48 hr
Sep 8, 5:36 PM CDTTornado WatchSPC7 hr
Sep 12, 4:36 PM CDTSevere Thunderstorm WarningOUN26 min
Sep 13, 4:39 PM CDTAreal Flood AdvisoryOUN3 hr
Sep 16, 6:48 PM CDTSevere Thunderstorm WarningOUN42 min
Oct 10, 3:12 PM CDTMesoscale DiscussionSPC93 min
Oct 22, 10:03 AM CDTMesoscale DiscussionSPC117 min
Oct 22, 2:25 PM CDTMesoscale DiscussionSPC95 min
Oct 22, 2:43 PM CDTTornado WatchSPC7 hr
Oct 22, 7:32 PM CDTMesoscale DiscussionSPC118 min
Oct 23, 7:29 AM CDTMesoscale DiscussionSPC91 min
Oct 23, 8:12 AM CDTSevere Thunderstorm WarningOUN27 min
Oct 25, 4:20 AM CDTWind AdvisoryOUN15 hr
Oct 28, 4:37 AM CDTFrost AdvisoryOUN28 hr
Nov 4, 1:36 PM CDTFreeze WarningOUN19 hr
Nov 5, 2:01 PM CDTFreeze WarningOUN18 hr
Nov 13, 2:53 PM CSTFrost AdvisoryOUN17 hr
Nov 17, 2:40 PM CSTFreeze WarningOUN17 hr
Nov 18, 3:50 PM CSTFrost AdvisoryOUN16 hr
Nov 25, 7:40 AM CSTWinter Weather AdvisoryOUN4 hr
Dec 11, 1:20 AM CSTDense Fog AdvisoryOUN5 hr
Dec 20, 4:32 AM CSTRed Flag WarningOUN13 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.