Alert archive / Wyoming / Park County

Weather alerts in Park County, Wyoming, 2019

96 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Park County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
96
Warnings
26
Watches
18
Advisories
30
Busiest month
July23 alerts
Busiest day
July 8, 20197 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 1 tornado warnings covering Park County in 2019 had a tornado report inside them.

Park County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings70100%0
Flash flood warnings00

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Riverton, WY: tornado warnings140100%20%
NWS Riverton, WY: severe thunderstorm warnings1021882%4159%17 min
NWS Riverton, WY: flash flood warnings10100%10%

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 5, 1:16 AM MSTWinter Weather AdvisoryRIW62 hr
Jan 5, 2:18 PM MSTWinter Storm WatchRIW24 hr
Jan 6, 2:32 PM MSTWinter Weather AdvisoryRIW25 hr
Jan 10, 9:57 PM MSTWinter Weather AdvisoryRIW6 hr
Jan 11, 5:45 PM MSTDense Fog AdvisoryRIW18 hr
Jan 12, 2:04 PM MSTDense Fog AdvisoryRIW21 hr
Jan 16, 10:46 AM MSTWinter Weather AdvisoryRIW48 hr
Jan 19, 4:51 PM MSTWinter Storm WatchRIW23 hr
Jan 20, 3:36 PM MSTWinter Weather AdvisoryRIW37 hr
Jan 22, 2:45 PM MSTWinter Weather AdvisoryRIW32 hr
Jan 26, 2:38 AM MSTWinter Storm WatchRIW19 hr
Jan 26, 9:29 PM MSTHigh Wind WarningRIW29 hr
Feb 1, 1:50 PM MSTWinter Weather AdvisoryRIW46 hr
Feb 3, 1:15 PM MSTWinter Weather AdvisoryRIW3 days
Feb 5, 1:51 PM MSTWind Chill WarningRIW33 hr
Feb 9, 2:41 PM MSTWinter Weather AdvisoryRIW32 hr
Feb 9, 7:06 PM MSTWind Chill AdvisoryRIW10 hr
Feb 11, 1:37 AM MSTWinter Weather AdvisoryRIW28 hr
Feb 11, 10:41 AM MSTHigh Wind WarningRIW7 hr
Feb 11, 5:19 PM MSTHigh Wind WatchRIW8 hr
Feb 12, 1:25 AM MSTHigh Wind WarningRIW49 hr
Feb 12, 1:50 AM MSTWinter Storm WatchRIW9 hr
Feb 12, 10:47 AM MSTWinter Storm WarningRIW4 days
Feb 22, 11:16 AM MSTWinter Storm WatchRIW13 hr
Feb 23, 12:31 AM MSTWinter Storm WarningRIW5 days
Feb 23, 1:32 PM MSTWinter Weather AdvisoryRIW40 hr
Feb 28, 3:12 AM MSTWinter Weather AdvisoryRIW18 hr
Mar 1, 3:50 AM MSTWind Chill AdvisoryRIW31 hr
Mar 2, 5:24 PM MSTWind Chill AdvisoryRIW16 hr
Mar 7, 3:13 PM MSTWinter Storm WatchRIW10 hr
Mar 12, 9:53 AM MDTWinter Weather AdvisoryRIW37 hr
Apr 7, 9:18 PM MDTWinter Storm WatchRIW38 hr
Apr 8, 2:13 PM MDTWinter Weather AdvisoryRIW58 hr
Apr 27, 12:05 PM MDTHigh Wind WatchRIW10 hr
Apr 27, 10:06 PM MDTHigh Wind WarningRIW25 hr
Apr 29, 2:48 AM MDTWinter Weather AdvisoryRIW57 hr
May 19, 1:20 AM MDTWinter Weather AdvisoryRIW32 hr
May 26, 2:59 PM MDTSpecial Weather StatementRIW31 min
May 26, 7:06 PM MDTSpecial Weather StatementRIW39 min
May 27, 3:57 AM MDTWinter Storm WarningRIW33 hr
Jun 6, 4:40 PM MDTSevere Thunderstorm WarningRIW20 min
Jun 6, 4:58 PM MDTSevere Thunderstorm WarningRIW17 min
Jun 16, 1:07 PM MDTSpecial Weather StatementRIW23 min
Jun 26, 1:48 PM MDTMesoscale DiscussionSPC117 min
Jul 1, 6:40 AM MDTSpecial Weather StatementRIW35 min
Jul 1, 9:13 AM MDTSpecial Weather StatementRIW32 min
Jul 1, 1:33 PM MDTMesoscale DiscussionSPC117 min
Jul 1, 3:05 PM MDTSevere Thunderstorm WarningRIW40 min
Jul 2, 12:44 PM MDTMesoscale DiscussionSPC2 hr
Jul 3, 12:43 PM MDTMesoscale DiscussionSPC2 hr
Jul 8, 12:53 PM MDTMesoscale DiscussionSPC2 hr
Jul 8, 1:08 PM MDTTornado WarningRIW37 min
Jul 8, 1:25 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 8, 1:44 PM MDTSevere Thunderstorm WarningRIW46 min
Jul 8, 2:22 PM MDTSpecial Weather StatementRIW23 min
Jul 8, 2:27 PM MDTSevere Thunderstorm WarningRIW16 min
Jul 8, 2:47 PM MDTSpecial Weather StatementRIW28 min
Jul 12, 4:16 PM MDTSevere Thunderstorm WarningRIW29 min
Jul 12, 4:47 PM MDTAreal Flood AdvisoryRIW3 hr
Jul 13, 2:41 PM MDTSpecial Weather StatementRIW34 min
Jul 13, 4:29 PM MDTAreal Flood AdvisoryRIW3 hr
Jul 15, 1:36 PM MDTMesoscale DiscussionSPC2 hr
Jul 16, 12:56 PM MDTMesoscale DiscussionSPC94 min
Jul 16, 1:28 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 22, 3:30 PM MDTSpecial Weather StatementRIW45 min
Jul 24, 6:39 PM MDTSpecial Weather StatementRIW36 min
Jul 30, 5:54 PM MDTSpecial Weather StatementRIW36 min
Aug 4, 1:01 PM MDTSpecial Weather StatementRIW44 min
Aug 5, 3:30 PM MDTSevere Thunderstorm WarningRIW45 min
Aug 10, 12:44 PM MDTMesoscale DiscussionSPC91 min
Aug 10, 4:53 PM MDTMesoscale DiscussionSPC2 hr
Aug 15, 8:32 PM MDTRed Flag WarningRIW4 days
Aug 21, 3:41 PM MDTSpecial Weather StatementRIW34 min
Aug 23, 3:19 PM MDTFire Weather WatchRIW23 hr
Aug 24, 2:10 PM MDTRed Flag WarningRIW54 hr
Aug 27, 1:33 PM MDTRed Flag WarningRIW53 hr
Aug 31, 2:48 PM MDTRed Flag WarningRIW53 hr
Sep 3, 2:26 PM MDTRed Flag WarningRIW29 hr
Sep 19, 1:50 PM MDTWinter Weather AdvisoryRIW44 hr
Sep 27, 4:02 AM MDTWinter Storm WatchRIW10 hr
Sep 27, 2:06 PM MDTWinter Weather AdvisoryRIW52 hr
Oct 1, 2:39 PM MDTFreeze WatchRIW24 hr
Oct 2, 2:27 PM MDTFreeze WarningRIW20 hr
Oct 6, 3:02 PM MDTWinter Storm WatchRIW43 hr
Oct 8, 10:24 AM MDTWinter Storm WarningRIW41 hr
Oct 18, 2:42 PM MDTWinter Weather AdvisoryRIW51 hr
Oct 25, 12:44 PM MDTWinter Weather AdvisoryRIW49 hr
Oct 27, 2:45 PM MDTWinter Weather AdvisoryRIW51 hr
Nov 23, 5:16 AM MSTHigh Wind WatchRIW11 hr
Nov 23, 4:13 PM MSTHigh Wind WarningRIW20 hr
Nov 27, 3:53 AM MSTWinter Storm WatchRIW37 hr
Nov 28, 4:39 PM MSTWinter Storm WarningRIW49 hr
Nov 28, 4:39 PM MSTWinter Weather AdvisoryRIW43 hr
Dec 7, 2:23 AM MSTWinter Weather AdvisoryRIW43 hr
Dec 10, 1:32 PM MSTWinter Storm WatchRIW25 hr
Dec 11, 2:30 PM MSTWinter Storm WarningRIW45 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 archive20182020

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.