Alert archive / North Dakota / Sargent County

Weather alerts in Sargent County, North Dakota, 2012

107 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sargent County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
107
Warnings
19
Watches
23
Advisories
38
Busiest month
June16 alerts
Busiest day
June 14, 20126 alerts

Over time

By month

Warning verification

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

Sargent County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings7443%367%15 min
Flash flood warnings00

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Forks, ND: tornado warnings9544%1839%18 min
NWS Grand Forks, ND: severe thunderstorm warnings1249722%21185%23 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 10, 3:13 PM CSTWinter Weather AdvisoryFGF14 hr
Jan 11, 4:12 AM CSTWind AdvisoryFGF11 hr
Jan 17, 4:12 AM CSTExtreme Cold WatchFGF24 hr
Jan 18, 4:05 AM CSTExtreme Cold WarningFGF32 hr
Jan 21, 3:18 PM CSTWinter Weather AdvisoryFGF33 hr
Feb 1, 10:48 PM CSTFreezing Fog AdvisoryFGF14 hr
Feb 2, 3:32 PM CSTDense Fog AdvisoryFGF44 hr
Feb 19, 3:05 PM CSTWinter Weather AdvisoryFGF45 hr
Feb 24, 4:14 AM CSTWinter Storm WatchFGF24 hr
Feb 25, 3:57 AM CSTWinter Storm WarningFGF47 hr
Feb 25, 3:57 AM CSTWinter Weather AdvisoryFGF42 hr
Feb 26, 3:09 PM CSTBlizzard WatchFGF37 hr
Feb 28, 4:18 AM CSTWinter Storm WarningFGF33 hr
Feb 28, 2:43 PM CSTMesoscale DiscussionSPC5 hr
Feb 28, 8:41 PM CSTMesoscale DiscussionSPC6 hr
Mar 4, 7:53 AM CSTWinter Weather AdvisoryFGF4 hr
Mar 8, 4:06 AM CSTWind AdvisoryFGF14 hr
Mar 23, 3:32 AM CDTDense Fog AdvisoryFGF8 hr
Mar 25, 3:28 PM CDTHigh Wind WatchFGF24 hr
Mar 26, 3:49 AM CDTWind AdvisoryFGF39 hr
Mar 29, 11:53 PM CDTDense Fog AdvisoryFGF11 hr
Apr 1, 3:44 AM CDTDense Fog AdvisoryFGF6 hr
Apr 6, 4:27 AM CDTWind AdvisoryFGF16 hr
Apr 6, 4:37 AM CDTRed Flag WarningFGF15 hr
Apr 6, 3:24 PM CDTFire Weather WatchFGF12 hr
Apr 7, 3:32 AM CDTRed Flag WarningFGF16 hr
Apr 7, 3:35 AM CDTWind AdvisoryFGF17 hr
Apr 7, 3:00 PM CDTFire Weather WatchFGF12 hr
Apr 8, 2:47 AM CDTRed Flag WarningFGF17 hr
Apr 8, 3:00 AM CDTWind AdvisoryFGF17 hr
Apr 14, 2:49 PM CDTHigh Wind WatchFGF13 hr
Apr 15, 4:00 AM CDTWind AdvisoryFGF24 hr
Apr 25, 3:30 PM CDTFrost AdvisoryFGF19 hr
May 2, 7:20 PM CDTMesoscale DiscussionSPC55 min
May 2, 11:23 PM CDTSevere Thunderstorm WarningFGF39 min
May 10, 6:49 PM CDTWind AdvisoryFGF8 hr
May 14, 9:28 PM CDTWind AdvisoryFGF6 hr
May 22, 5:54 PM CDTSevere Thunderstorm WatchSPC7 hr
May 22, 8:41 PM CDTMesoscale DiscussionSPC64 min
May 26, 11:57 PM CDTMesoscale DiscussionSPC93 min
Jun 1, 3:04 PM CDTMesoscale DiscussionSPC86 min
Jun 10, 12:45 AM CDTMesoscale DiscussionSPC60 min
Jun 10, 1:07 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 10, 4:18 AM CDTSevere Thunderstorm WarningFGF42 min
Jun 11, 3:32 AM CDTWind AdvisoryFGF14 hr
Jun 13, 9:34 PM CDTMesoscale DiscussionSPC86 min
Jun 13, 10:53 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 14, 1:20 AM CDTSpecial Weather StatementFGF55 min
Jun 14, 2:44 AM CDTSevere Thunderstorm WarningFGF46 min
Jun 14, 3:01 AM CDTMesoscale DiscussionSPC89 min
Jun 14, 3:41 AM CDTSpecial Weather StatementFGF64 min
Jun 17, 2:15 PM CDTMesoscale DiscussionSPC2 hr
Jun 17, 3:45 PM CDTTornado WatchSPC6 hr
Jun 17, 5:37 PM CDTSevere Thunderstorm WarningFGF53 min
Jun 19, 2:39 AM CDTMesoscale DiscussionSPC66 min
Jun 19, 4:56 PM CDTMesoscale DiscussionSPC94 min
Jul 2, 4:15 AM CDTHeat AdvisoryFGF15 hr
Jul 3, 4:17 AM CDTHeat AdvisoryFGF15 hr
Jul 4, 4:12 AM CDTHeat AdvisoryFGF18 hr
Jul 6, 5:42 AM CDTSevere Thunderstorm WarningFGF63 min
Jul 12, 2:17 PM CDTMesoscale DiscussionSPC88 min
Jul 19, 1:56 PM CDTMesoscale DiscussionSPC64 min
Jul 19, 3:48 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 22, 1:40 PM CDTMesoscale DiscussionSPC95 min
Jul 22, 3:25 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 22, 6:14 PM CDTSevere Thunderstorm WarningFGF61 min
Jul 24, 9:08 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 24, 11:24 PM CDTMesoscale DiscussionSPC96 min
Jul 25, 1:56 PM CDTMesoscale DiscussionSPC2 hr
Jul 29, 3:50 PM CDTMesoscale DiscussionSPC115 min
Aug 3, 1:31 PM CDTMesoscale DiscussionSPC59 min
Aug 3, 2:14 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 3, 5:45 PM CDTSevere Thunderstorm WarningFGF60 min
Aug 3, 6:19 PM CDTMesoscale DiscussionSPC86 min
Aug 24, 5:17 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 24, 10:36 PM CDTMesoscale DiscussionSPC54 min
Aug 28, 1:27 AM CDTMesoscale DiscussionSPC3 hr
Sep 8, 8:07 PM CDTFrost AdvisoryFGF12 hr
Sep 9, 6:04 PM CDTFire Weather WatchFGF9 hr
Sep 10, 3:20 AM CDTRed Flag WarningFGF17 hr
Sep 10, 3:27 PM CDTFire Weather WatchFGF13 hr
Sep 11, 4:18 AM CDTRed Flag WarningFGF15 hr
Sep 12, 7:25 PM CDTFrost AdvisoryFGF14 hr
Sep 17, 2:34 PM CDTFrost AdvisoryFGF18 hr
Sep 18, 3:03 PM CDTFire Weather WatchFGF13 hr
Sep 19, 3:49 AM CDTWind AdvisoryFGF15 hr
Sep 19, 4:00 AM CDTRed Flag WarningFGF16 hr
Sep 21, 3:52 AM CDTWind AdvisoryFGF18 hr
Sep 21, 3:11 PM CDTFrost AdvisoryFGF17 hr
Sep 22, 4:04 AM CDTFreeze WarningFGF28 hr
Oct 1, 3:55 AM CDTFire Weather WatchFGF15 hr
Oct 1, 7:13 PM CDTRed Flag WarningFGF24 hr
Oct 3, 3:43 PM CDTWind AdvisoryFGF27 hr
Oct 3, 11:15 PM CDTMesoscale DiscussionSPC5 hr
Oct 11, 3:02 PM CDTFire Weather WatchFGF14 hr
Oct 16, 1:02 PM CDTHigh Wind WatchFGF26 hr
Oct 16, 1:02 PM CDTWind AdvisoryFGF63 hr
Nov 10, 5:10 PM CSTMesoscale DiscussionSPC5 hr
Nov 21, 3:26 PM CSTWinter Weather AdvisoryFGF39 hr
Nov 22, 4:48 AM CSTWind AdvisoryFGF19 hr
Dec 2, 12:58 AM CSTDense Fog AdvisoryFGF10 hr
Dec 7, 3:07 PM CSTWinter Storm WatchFGF13 hr
Dec 8, 4:35 AM CSTWinter Storm WarningFGF35 hr
Dec 8, 5:58 PM CSTMesoscale DiscussionSPC4 hr
Dec 9, 3:22 PM CSTWind Chill AdvisoryFGF19 hr
Dec 24, 4:10 AM CSTWind Chill AdvisoryFGF32 hr
Dec 30, 3:21 PM CSTWind Chill AdvisoryFGF18 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 archive20112013

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.