Alert archive / Nebraska / Perkins County

Weather alerts in Perkins County, Nebraska, 2015

136 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Perkins County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
136
Warnings
39
Watches
28
Advisories
14
Busiest month
June29 alerts
Busiest day
June 17, 20159 alerts

Over time

By month

Warning verification

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

Perkins County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings231439%1385%19 min
Flash flood warnings110%0

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS North Platte, NE: tornado warnings14379%2025%10 min
NWS North Platte, NE: severe thunderstorm warnings29519335%38486%20 min
NWS North Platte, NE: flash flood warnings8363%850%53 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 2, 2:49 PM MSTWinter Weather AdvisoryLBF32 hr
Jan 3, 7:33 PM MSTWind Chill AdvisoryLBF15 hr
Feb 3, 2:51 AM MSTWinter Weather AdvisoryLBF32 hr
Feb 7, 2:24 AM MSTRed Flag WarningLBF15 hr
Feb 20, 1:01 PM MSTWinter Weather AdvisoryLBF41 hr
Mar 13, 1:30 PM MDTFire Weather WatchLBF37 hr
Mar 14, 2:36 PM MDTRed Flag WarningLBF30 hr
Mar 20, 3:13 AM MDTRed Flag WarningLBF16 hr
Mar 20, 2:56 PM MDTFire Weather WatchLBF12 hr
Mar 23, 3:31 PM MDTRed Flag WarningLBF27 hr
Apr 1, 2:55 AM MDTRed Flag WarningLBF18 hr
Apr 3, 2:36 AM MDTFire Weather WatchLBF42 hr
Apr 3, 2:12 PM MDTRed Flag WarningLBF29 hr
Apr 11, 3:00 PM MDTFire Weather WatchLBF12 hr
Apr 12, 2:41 AM MDTRed Flag WarningLBF16 hr
Apr 13, 3:00 AM MDTFire Weather WatchLBF12 hr
Apr 13, 2:40 PM MDTRed Flag WarningLBF29 hr
Apr 15, 4:49 PM MDTMesoscale DiscussionSPC2 hr
Apr 17, 4:05 PM MDTMesoscale DiscussionSPC2 hr
Apr 17, 4:37 PM MDTTornado WatchSPC7 hr
Apr 17, 6:06 PM MDTMesoscale DiscussionSPC84 min
Apr 17, 7:56 PM MDTMesoscale DiscussionSPC94 min
Apr 18, 1:49 PM MDTMesoscale DiscussionSPC116 min
Apr 18, 2:08 PM MDTTornado WatchSPC6 hr
Apr 18, 5:07 PM MDTMesoscale DiscussionSPC53 min
Apr 18, 7:27 PM MDTMesoscale DiscussionSPC63 min
Apr 23, 6:27 PM MDTSevere Thunderstorm WarningLBF48 min
Apr 23, 6:45 PM MDTSevere Thunderstorm WarningLBF45 min
May 9, 2:34 PM MDTMesoscale DiscussionSPC56 min
May 9, 5:16 PM MDTMesoscale DiscussionSPC119 min
May 10, 2:26 PM MDTFrost AdvisoryLBF17 hr
May 11, 3:14 AM MDTFreeze WatchLBF11 hr
May 11, 1:57 PM MDTFrost AdvisoryLBF18 hr
May 15, 12:14 PM MDTMesoscale DiscussionSPC2 hr
May 15, 12:58 PM MDTTornado WatchSPC7 hr
May 15, 5:28 PM MDTMesoscale DiscussionSPC62 min
May 15, 7:21 PM MDTSevere Thunderstorm WarningLBF39 min
May 15, 7:55 PM MDTSevere Thunderstorm WatchSPC4 hr
May 15, 8:01 PM MDTSevere Thunderstorm WarningLBF44 min
May 15, 9:53 PM MDTMesoscale DiscussionSPC67 min
May 28, 12:39 PM MDTMesoscale DiscussionSPC2 hr
May 28, 1:18 PM MDTSevere Thunderstorm WatchSPC7 hr
May 28, 4:33 PM MDTMesoscale DiscussionSPC87 min
May 28, 5:36 PM MDTAreal Flood AdvisoryLBF6 hr
May 29, 1:30 PM MDTMesoscale DiscussionSPC2 hr
Jun 2, 8:01 PM MDTMesoscale DiscussionSPC89 min
Jun 3, 2:01 AM MDTMesoscale DiscussionSPC89 min
Jun 5, 4:44 PM MDTTornado WatchSPC7 hr
Jun 5, 7:50 PM MDTSevere Thunderstorm WarningLBF55 min
Jun 6, 2:14 PM MDTMesoscale DiscussionSPC91 min
Jun 6, 4:25 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 6, 6:55 PM MDTMesoscale DiscussionSPC95 min
Jun 6, 9:33 PM MDTMesoscale DiscussionSPC57 min
Jun 7, 1:36 PM MDTMesoscale DiscussionSPC114 min
Jun 10, 1:02 PM MDTMesoscale DiscussionSPC118 min
Jun 14, 5:52 PM MDTSevere Thunderstorm WarningLBF38 min
Jun 16, 3:49 PM MDTTornado WatchSPC7 hr
Jun 16, 6:23 PM MDTSevere Thunderstorm WarningLBF52 min
Jun 16, 6:34 PM MDTMesoscale DiscussionSPC86 min
Jun 16, 7:12 PM MDTSevere Thunderstorm WarningLBF63 min
Jun 16, 8:23 PM MDTAreal Flood AdvisoryLBF4 hr
Jun 16, 9:13 PM MDTFlash Flood WarningLBF6 hr
Jun 16, 9:25 PM MDTSevere Thunderstorm WarningLBF50 min
Jun 16, 9:42 PM MDTAreal Flood AdvisoryLBF6 hr
Jun 16, 10:11 PM MDTSevere Thunderstorm WarningLBF49 min
Jun 16, 10:23 PM MDTMesoscale DiscussionSPC37 min
Jun 18, 2:49 AM MDTMesoscale DiscussionSPC116 min
Jun 18, 5:10 PM MDTAreal Flood AdvisoryLBF24 hr
Jun 25, 2:10 PM MDTMesoscale DiscussionSPC65 min
Jun 25, 2:30 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 25, 4:25 PM MDTMesoscale DiscussionSPC95 min
Jun 25, 5:22 PM MDTMesoscale DiscussionSPC83 min
Jun 25, 8:04 PM MDTSevere Thunderstorm WarningLBF41 min
Jun 25, 8:43 PM MDTSevere Thunderstorm WarningLBF47 min
Jul 4, 4:18 PM MDTMesoscale DiscussionSPC117 min
Jul 11, 1:53 PM MDTMesoscale DiscussionSPC3 hr
Jul 11, 5:51 PM MDTMesoscale DiscussionSPC84 min
Jul 14, 2:20 PM MDTMesoscale DiscussionSPC85 min
Jul 17, 3:03 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 17, 3:38 PM MDTSevere Thunderstorm WarningLBF52 min
Jul 17, 5:02 PM MDTMesoscale DiscussionSPC118 min
Jul 18, 3:29 PM MDTMesoscale DiscussionSPC2 hr
Jul 18, 6:41 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 18, 8:35 PM MDTSevere Thunderstorm WarningLBF40 min
Jul 18, 9:07 PM MDTSevere Thunderstorm WarningLBF38 min
Jul 19, 4:43 PM MDTMesoscale DiscussionSPC2 hr
Jul 19, 7:17 PM MDTSevere Thunderstorm WarningLBF43 min
Jul 23, 1:34 PM MDTMesoscale DiscussionSPC56 min
Jul 23, 2:04 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 23, 4:11 PM MDTSevere Thunderstorm WarningLBF49 min
Jul 23, 5:16 PM MDTSpecial Weather StatementLBF44 min
Jul 23, 5:35 PM MDTSpecial Weather StatementLBF40 min
Jul 23, 5:54 PM MDTSevere Thunderstorm WarningLBF36 min
Jul 23, 5:55 PM MDTMesoscale DiscussionSPC2 hr
Jul 25, 4:22 PM MDTMesoscale DiscussionSPC2 hr
Jul 26, 12:30 PM MDTMesoscale DiscussionSPC2 hr
Jul 26, 1:07 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 26, 4:22 PM MDTMesoscale DiscussionSPC83 min
Jul 26, 5:20 PM MDTSpecial Weather StatementLBF40 min
Jul 27, 3:57 PM MDTMesoscale DiscussionSPC2 hr
Aug 1, 7:19 PM MDTSpecial Weather StatementLBF41 min
Aug 4, 10:58 AM MDTMesoscale DiscussionSPC2 hr
Aug 4, 11:30 AM MDTSpecial Weather StatementLBF45 min
Aug 5, 6:15 AM MDTDense Fog AdvisoryLBF3 hr
Aug 6, 2:36 PM MDTFlash Flood WatchLBF37 hr
Aug 7, 2:12 PM MDTMesoscale DiscussionSPC3 hr
Aug 7, 3:05 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 7, 6:27 PM MDTMesoscale DiscussionSPC2 hr
Aug 7, 6:51 PM MDTSevere Thunderstorm WarningLBF24 min
Aug 7, 7:12 PM MDTSevere Thunderstorm WarningLBF33 min
Aug 7, 7:49 PM MDTSevere Thunderstorm WarningLBF41 min
Aug 13, 1:45 PM MDTMesoscale DiscussionSPC2 hr
Aug 15, 8:17 PM MDTSpecial Weather StatementLBF43 min
Aug 16, 2:28 AM MDTFlash Flood WatchLBF18 hr
Aug 21, 12:55 PM MDTMesoscale DiscussionSPC2 hr
Sep 7, 4:46 PM MDTMesoscale DiscussionSPC119 min
Sep 7, 5:13 PM MDTSevere Thunderstorm WarningLBF47 min
Sep 7, 5:48 PM MDTSevere Thunderstorm WarningLBF42 min
Sep 7, 5:50 PM MDTSevere Thunderstorm WatchSPC2 hr
Oct 10, 2:38 AM MDTFire Weather WatchLBF17 hr
Oct 10, 7:33 PM MDTRed Flag WarningLBF24 hr
Oct 12, 2:48 AM MDTRed Flag WarningLBF14 hr
Oct 14, 1:26 PM MDTFreeze WatchLBF14 hr
Oct 15, 2:57 AM MDTFreeze WarningLBF30 hr
Nov 9, 2:11 PM MSTWinter Storm WatchLBF23 hr
Nov 10, 12:45 PM MSTBlizzard WarningLBF24 hr
Nov 16, 2:43 AM MSTDense Fog AdvisoryLBF5 hr
Nov 16, 2:59 AM MSTWinter Storm WatchLBF11 hr
Nov 16, 1:43 PM MSTWinter Storm WarningLBF25 hr
Nov 17, 3:00 AM MSTBlizzard WarningLBF11 hr
Nov 18, 10:13 AM MSTSpecial Weather StatementLBF62 min
Nov 25, 2:51 AM MSTWinter Weather AdvisoryLBF34 hr
Nov 29, 3:37 AM MSTWinter Weather AdvisoryLBF65 hr
Dec 10, 1:52 AM MSTSpecial Weather StatementLBF53 min
Dec 13, 2:15 AM MSTWinter Storm WatchLBF35 hr
Dec 14, 1:01 PM MSTWinter Storm WarningLBF45 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 archive20142016

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.