Alert archive / Wyoming / Goshen County

Weather alerts in Goshen County, Wyoming, 2017

100 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Goshen County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
100
Warnings
32
Watches
10
Advisories
17
Busiest month
June23 alerts
Busiest day
June 12, 201713 alerts

Over time

By month

Warning verification

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

4 of 8 tornado warnings covering Goshen County in 2017 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 30 minutes after it went out.

Goshen County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings8450%250%30 min
Severe thunderstorm warnings15567%1164%21 min
Flash flood warnings00

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Cheyenne, WY: tornado warnings301453%2986%18 min
NWS Cheyenne, WY: severe thunderstorm warnings1204166%13457%26 min
NWS Cheyenne, WY: flash flood warnings4175%250%31 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 3, 2:20 PM MSTWinter Weather AdvisoryCYS39 hr
Jan 5, 3:03 PM MSTWind Chill WarningCYS20 hr
Jan 6, 1:57 PM MSTWind Chill AdvisoryCYS19 hr
Jan 22, 2:02 PM MSTWinter Weather AdvisoryCYS52 hr
Feb 19, 2:11 AM MSTHigh Wind WatchCYS33 hr
Feb 19, 1:30 PM MSTHigh Wind WarningCYS49 hr
Feb 21, 3:28 AM MSTWinter Storm WatchCYS34 hr
Feb 21, 7:53 PM MSTWinter Storm WarningCYS63 hr
Mar 4, 2:44 PM MSTHigh Wind WatchCYS23 hr
Mar 5, 1:43 PM MSTHigh Wind WarningCYS51 hr
Mar 8, 7:24 PM MSTHigh Wind WarningCYS21 hr
Mar 23, 2:53 PM MDTMesoscale DiscussionSPC2 hr
Mar 23, 5:14 PM MDTSpecial Weather StatementCYS31 min
Mar 23, 5:44 PM MDTSpecial Weather StatementCYS31 min
Apr 8, 9:15 PM MDTHigh Wind WatchCYS17 hr
Apr 8, 9:15 PM MDTHigh Wind WarningCYS30 hr
Apr 27, 4:25 AM MDTWinter Weather AdvisoryCYS50 hr
May 14, 5:51 PM MDTMesoscale DiscussionSPC54 min
May 14, 6:51 PM MDTSpecial Weather StatementCYS39 min
May 15, 3:07 PM MDTMesoscale DiscussionSPC113 min
May 15, 4:40 PM MDTSevere Thunderstorm WatchSPC7 hr
May 15, 5:03 PM MDTSpecial Weather StatementCYS42 min
May 15, 5:18 PM MDTSevere Thunderstorm WarningCYS42 min
May 15, 6:34 PM MDTMesoscale DiscussionSPC56 min
May 15, 7:51 PM MDTSpecial Weather StatementCYS39 min
May 15, 8:25 PM MDTSpecial Weather StatementCYS50 min
May 15, 9:53 PM MDTMesoscale DiscussionSPC67 min
May 16, 1:16 PM MDTMesoscale DiscussionSPC119 min
May 16, 1:38 PM MDTSpecial Weather StatementCYS37 min
May 16, 2:27 PM MDTSpecial Weather StatementCYS48 min
May 17, 3:25 PM MDTWinter Weather AdvisoryCYS45 hr
May 26, 1:00 PM MDTSevere Thunderstorm WatchSPC9 hr
May 31, 3:46 PM MDTSpecial Weather StatementCYS44 min
May 31, 5:48 PM MDTSpecial Weather StatementCYS27 min
May 31, 5:55 PM MDTSevere Thunderstorm WarningCYS35 min
Jun 1, 4:22 PM MDTSpecial Weather StatementCYS38 min
Jun 5, 3:27 PM MDTSevere Thunderstorm WarningCYS33 min
Jun 5, 4:01 PM MDTMesoscale DiscussionSPC59 min
Jun 7, 2:12 PM MDTMesoscale DiscussionSPC2 hr
Jun 7, 6:14 PM MDTSevere Thunderstorm WarningCYS61 min
Jun 7, 7:17 PM MDTSevere Thunderstorm WarningCYS58 min
Jun 12, 11:29 AM MDTMesoscale DiscussionSPC2 hr
Jun 12, 1:11 PM MDTTornado Watch PDSSPC8 hr
Jun 12, 3:26 PM MDTTornado WarningCYS34 min
Jun 12, 3:52 PM MDTTornado WarningCYS23 min
Jun 12, 4:12 PM MDTTornado WarningCYS33 min
Jun 12, 4:41 PM MDTTornado WarningCYS34 min
Jun 12, 5:05 PM MDTMesoscale DiscussionSPC85 min
Jun 12, 5:12 PM MDTSevere Thunderstorm WarningCYS48 min
Jun 12, 5:15 PM MDTTornado WarningCYS30 min
Jun 12, 5:34 PM MDTTornado Warning Tornado observedCYS41 min
Jun 12, 5:39 PM MDTSevere Thunderstorm WarningCYS36 min
Jun 12, 5:42 PM MDTTornado WarningCYS33 min
Jun 12, 5:52 PM MDTTornado WarningCYS38 min
Jun 13, 1:58 PM MDTSpecial Weather StatementCYS47 min
Jun 27, 2:04 PM MDTMesoscale DiscussionSPC2 hr
Jun 27, 6:04 PM MDTSevere Thunderstorm WarningCYS39 min
Jun 28, 3:07 PM MDTMesoscale DiscussionSPC113 min
Jul 2, 8:16 PM MDTSpecial Weather StatementCYS44 min
Jul 2, 8:32 PM MDTSevere Thunderstorm WarningCYS18 min
Jul 10, 4:08 PM MDTMesoscale DiscussionSPC2 hr
Jul 18, 4:59 PM MDTSpecial Weather StatementCYS46 min
Jul 18, 6:05 PM MDTSpecial Weather StatementCYS40 min
Jul 18, 6:13 PM MDTSevere Thunderstorm WarningCYS32 min
Jul 19, 9:41 PM MDTAreal Flood AdvisoryCYS2 hr
Jul 20, 5:34 PM MDTSpecial Weather StatementCYS41 min
Jul 27, 3:16 PM MDTSpecial Weather StatementCYS44 min
Jul 27, 4:08 PM MDTSpecial Weather StatementCYS52 min
Jul 27, 4:46 PM MDTSevere Thunderstorm WarningCYS44 min
Jul 27, 9:21 PM MDTSpecial Weather StatementCYS39 min
Jul 27, 10:24 PM MDTSevere Thunderstorm WarningCYS36 min
Jul 28, 4:08 PM MDTSpecial Weather StatementCYS52 min
Aug 5, 12:29 AM MDTSpecial Weather StatementCYS46 min
Aug 5, 8:20 PM MDTSevere Thunderstorm WarningCYS25 min
Aug 5, 8:45 PM MDTSpecial Weather StatementCYS45 min
Aug 11, 2:34 PM MDTSpecial Weather StatementCYS41 min
Aug 11, 4:15 PM MDTSevere Thunderstorm WarningCYS32 min
Aug 11, 4:50 PM MDTSpecial Weather StatementCYS40 min
Aug 11, 5:23 PM MDTSevere Thunderstorm WarningCYS37 min
Aug 13, 6:51 PM MDTSpecial Weather StatementCYS39 min
Aug 13, 7:29 PM MDTSpecial Weather StatementCYS46 min
Aug 23, 5:27 PM MDTSpecial Weather StatementCYS48 min
Sep 25, 1:55 PM MDTFrost AdvisoryCYS17 hr
Oct 8, 3:11 AM MDTWinter Weather AdvisoryCYS33 hr
Oct 9, 2:18 AM MDTHard Freeze WarningCYS31 hr
Nov 6, 3:09 AM MSTWinter Weather AdvisoryCYS29 hr
Dec 2, 12:58 PM MSTHigh Wind WatchCYS24 hr
Dec 3, 12:48 PM MSTHigh Wind WarningCYS24 hr
Dec 20, 2:37 AM MSTWinter Weather AdvisoryCYS35 hr
Dec 21, 2:04 PM MSTWinter Storm WatchCYS24 hr
Dec 22, 2:06 AM MSTWinter Storm WarningCYS45 hr
Dec 22, 2:14 PM MSTWinter Weather AdvisoryCYS32 hr
Dec 23, 1:48 PM MSTMesoscale DiscussionSPC5 hr
Dec 23, 10:38 PM MSTWind Chill AdvisoryCYS9 hr
Dec 24, 1:14 PM MSTWinter Weather AdvisoryCYS37 hr
Dec 24, 8:04 PM MSTWind Chill AdvisoryCYS6 hr
Dec 26, 12:47 PM MSTWind Chill AdvisoryCYS19 hr
Dec 28, 10:01 AM MSTHigh Wind WatchCYS15 hr
Dec 29, 10:16 AM MSTWind Chill AdvisoryCYS23 hr
Dec 30, 2:31 PM MSTWind Chill AdvisoryCYS40 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 archive20162018

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.