Alert archive / Minnesota / Big Stone County

Weather alerts in Big Stone County, Minnesota, 2015

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

Big Stone County and its neighbors

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

Alerts
108
Warnings
26
Watches
19
Advisories
36
Busiest month
July26 alerts
Busiest day
July 18, 20156 alerts

Over time

By month

Warning verification

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

0 of 4 tornado warnings covering Big Stone County in 2015 had a tornado report inside them.

Big Stone County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings40100%0
Severe thunderstorm warnings8538%580%24 min
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Aberdeen, SD: tornado warnings19479%580%9 min
NWS Aberdeen, SD: severe thunderstorm warnings20515027%30885%22 min
NWS Aberdeen, SD: flash flood warnings9633%10100%68 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 2, 3:54 PM CSTWind Chill AdvisoryABR68 hr
Jan 3, 9:56 AM CSTWind AdvisoryABR11 hr
Jan 5, 3:17 PM CSTWind Chill AdvisoryABR20 hr
Jan 6, 4:06 AM CSTWind Chill WarningABR32 hr
Jan 7, 4:35 PM CSTWinter Weather AdvisoryABR29 hr
Jan 8, 12:25 PM CSTBlizzard WarningABR6 hr
Jan 8, 12:25 PM CSTWinter Weather AdvisoryABR12 hr
Jan 8, 2:59 PM CSTWind Chill AdvisoryABR19 hr
Jan 9, 2:40 PM CSTWind Chill AdvisoryABR12 hr
Jan 11, 7:08 PM CSTWind Chill AdvisoryABR15 hr
Jan 12, 3:25 PM CSTWind Chill AdvisoryABR19 hr
Jan 16, 3:07 PM CSTWind AdvisoryABR25 hr
Jan 16, 10:33 PM CSTFreezing Rain AdvisoryABR7 hr
Feb 7, 3:13 PM CSTFreezing Rain AdvisoryABR24 hr
Feb 9, 2:15 PM CSTWinter Weather AdvisoryABR22 hr
Feb 11, 2:47 AM CSTWind Chill AdvisoryABR30 hr
Feb 13, 2:56 PM CSTWind Chill AdvisoryABR21 hr
Feb 17, 3:36 AM CSTWind Chill AdvisoryABR32 hr
Feb 20, 3:21 PM CSTWind Chill AdvisoryABR64 hr
Feb 21, 3:05 AM CSTWind Chill WarningABR33 hr
Feb 25, 2:55 PM CSTWind Chill AdvisoryABR21 hr
Mar 1, 9:53 PM CSTBlizzard WatchABR17 hr
Mar 2, 2:31 PM CSTBlizzard WarningABR22 hr
Mar 2, 2:31 PM CSTWinter Weather AdvisoryABR27 hr
Mar 3, 3:07 PM CSTWind Chill AdvisoryABR18 hr
Mar 25, 3:34 AM CDTWind AdvisoryABR14 hr
Mar 28, 4:16 AM CDTWind AdvisoryABR39 hr
Apr 1, 3:27 PM CDTRed Flag WarningABR27 hr
Apr 2, 10:56 AM CDTWind AdvisoryABR8 hr
Apr 11, 2:52 AM CDTRed Flag WarningABR17 hr
Apr 12, 1:24 PM CDTFire Weather WatchABR14 hr
Apr 13, 3:18 AM CDTFire Weather WatchABR24 hr
Apr 13, 3:18 AM CDTRed Flag WarningABR17 hr
Apr 14, 3:31 AM CDTRed Flag WarningABR17 hr
Apr 14, 2:57 PM CDTFire Weather WatchABR13 hr
Apr 15, 3:51 AM CDTRed Flag WarningABR16 hr
Apr 20, 3:33 AM CDTWind AdvisoryABR15 hr
May 16, 2:10 PM CDTMesoscale DiscussionSPC95 min
May 16, 4:27 PM CDTSpecial Weather StatementABR48 min
May 16, 4:32 PM CDTTornado WarningABR30 min
May 16, 5:25 PM CDTTornado WatchSPC5 hr
May 16, 7:11 PM CDTMesoscale DiscussionSPC94 min
May 17, 3:44 AM CDTWind AdvisoryABR27 hr
May 18, 3:50 AM CDTFreeze WarningABR28 hr
Jun 6, 3:05 PM CDTMesoscale DiscussionSPC85 min
Jun 6, 5:05 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 6, 7:44 PM CDTMesoscale DiscussionSPC91 min
Jun 9, 3:21 PM CDTMesoscale DiscussionSPC114 min
Jun 9, 4:49 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 19, 4:02 PM CDTFlash Flood WatchABR11 hr
Jun 21, 10:41 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 11:25 PM CDTMesoscale DiscussionSPC95 min
Jun 22, 1:17 AM CDTMesoscale DiscussionSPC58 min
Jun 22, 3:16 AM CDTMesoscale DiscussionSPC89 min
Jun 22, 4:53 AM CDTMesoscale DiscussionSPC2 hr
Jun 27, 4:45 PM CDTMesoscale DiscussionSPC90 min
Jun 27, 5:11 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 27, 7:52 PM CDTSevere Thunderstorm WarningABR38 min
Jun 27, 8:30 PM CDTSevere Thunderstorm WarningABR60 min
Jun 27, 9:37 PM CDTTornado WarningABR23 min
Jun 27, 9:57 PM CDTSevere Thunderstorm WarningABR18 min
Jul 5, 1:19 PM CDTMesoscale DiscussionSPC86 min
Jul 5, 7:24 PM CDTMesoscale DiscussionSPC2 hr
Jul 5, 7:42 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 5, 8:58 PM CDTFlash Flood WatchABR6 hr
Jul 11, 4:05 AM CDTHeat AdvisoryABR39 hr
Jul 12, 3:53 PM CDTMesoscale DiscussionSPC82 min
Jul 12, 5:28 PM CDTTornado WatchSPC5 hr
Jul 16, 2:05 PM CDTMesoscale DiscussionSPC115 min
Jul 16, 5:42 PM CDTSpecial Weather StatementABR63 min
Jul 17, 1:10 PM CDTMesoscale DiscussionSPC2 hr
Jul 17, 3:43 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 6:02 PM CDTMesoscale DiscussionSPC118 min
Jul 17, 7:08 PM CDTTornado WarningABR37 min
Jul 17, 7:25 PM CDTSevere Thunderstorm WarningABR20 min
Jul 17, 7:48 PM CDTSevere Thunderstorm WarningABR72 min
Jul 17, 8:53 PM CDTTornado WarningABR36 min
Jul 17, 9:00 PM CDTSevere Thunderstorm WarningABR45 min
Jul 17, 9:55 PM CDTMesoscale DiscussionSPC65 min
Jul 24, 12:16 AM CDTSevere Thunderstorm WarningABR44 min
Jul 24, 12:54 AM CDTSevere Thunderstorm WarningABR28 min
Jul 24, 2:23 AM CDTMesoscale DiscussionSPC67 min
Jul 25, 6:13 PM CDTMesoscale DiscussionSPC3 hr
Jul 28, 1:57 AM CDTMesoscale DiscussionSPC2 hr
Jul 28, 2:48 AM CDTSpecial Weather StatementABR57 min
Jul 28, 3:37 AM CDTMesoscale DiscussionSPC2 hr
Jul 29, 3:00 AM CDTWind AdvisoryABR8 hr
Aug 1, 3:13 PM CDTMesoscale DiscussionSPC62 min
Aug 1, 6:04 PM CDTSevere Thunderstorm WatchSPC3 hr
Aug 6, 11:07 AM CDTFlash Flood WatchABR7 hr
Aug 6, 3:23 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 21, 3:11 PM CDTWind AdvisoryABR43 hr
Aug 22, 2:13 PM CDTMesoscale DiscussionSPC62 min
Aug 22, 2:35 PM CDTTornado WatchSPC7 hr
Oct 11, 3:26 PM CDTHigh Wind WarningABR21 hr
Oct 11, 3:26 PM CDTWind AdvisoryABR24 hr
Oct 15, 3:31 AM CDTFreeze WarningABR30 hr
Nov 4, 7:51 AM CSTDense Fog AdvisoryABR2 hr
Nov 11, 3:13 PM CSTWind AdvisoryABR26 hr
Nov 18, 3:50 AM CSTWind AdvisoryABR38 hr
Nov 29, 3:18 PM CSTWinter Storm WarningABR42 hr
Nov 29, 3:18 PM CSTWinter Weather AdvisoryABR48 hr
Nov 30, 12:03 PM CSTMesoscale DiscussionSPC6 hr
Dec 14, 3:42 AM CSTWinter Storm WatchABR24 hr
Dec 14, 2:45 PM CSTWinter Storm WarningABR45 hr
Dec 15, 10:22 PM CSTWinter Weather AdvisoryABR20 hr
Dec 25, 3:35 AM CSTWinter Weather AdvisoryABR35 hr
Dec 28, 2:47 AM CSTWinter Weather AdvisoryABR24 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.