Alert archive / Wyoming / Lincoln County

Weather alerts in Lincoln County, Wyoming, 2009

63 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lincoln County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
63
Warnings
16
Watches
12
Advisories
27
Busiest month
April13 alerts
Busiest day
April 8, 20093 alerts

Over time

By month

Warning verification

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

Lincoln County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%10%
Flash flood warnings00

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Riverton, WY: tornado warnings50100%20%
NWS Riverton, WY: severe thunderstorm warnings772370%6356%22 min
NWS Riverton, WY: flash flood warnings6350%667%47 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 6, 1:31 AM MSTWinter Weather AdvisoryRIW40 hr
Jan 6, 3:50 PM MSTWinter Storm WarningRIW24 hr
Jan 23, 2:08 PM MSTWinter Storm WatchRIW13 hr
Jan 24, 3:14 AM MSTWinter Weather AdvisoryRIW23 hr
Jan 25, 9:15 AM MSTWinter Weather AdvisoryRIW20 hr
Jan 26, 2:31 PM MSTWinter Storm WatchRIW25 hr
Jan 27, 1:43 AM MSTWinter Weather AdvisoryRIW36 hr
Feb 17, 2:39 AM MSTWinter Weather AdvisoryRIW45 hr
Feb 23, 1:10 AM MSTWinter Weather AdvisoryRIW35 hr
Feb 25, 2:21 PM MSTWinter Weather AdvisoryRIW12 hr
Feb 26, 2:18 AM MSTWinter Weather AdvisoryRIW27 hr
Mar 8, 3:54 PM MDTWinter Storm WarningRIW35 hr
Mar 8, 3:54 PM MDTWinter Weather AdvisoryRIW32 hr
Mar 14, 3:00 PM MDTWinter Storm WatchRIW25 hr
Mar 15, 3:46 PM MDTWinter Storm WarningRIW35 hr
Mar 16, 2:49 AM MDTWinter Weather AdvisoryRIW17 hr
Mar 22, 3:12 PM MDTWinter Weather AdvisoryRIW23 hr
Mar 24, 3:30 AM MDTWinter Storm WatchRIW35 hr
Mar 25, 3:29 AM MDTWinter Storm WarningRIW39 hr
Mar 25, 3:29 AM MDTWinter Weather AdvisoryRIW39 hr
Mar 28, 11:44 AM MDTWinter Weather AdvisoryRIW33 hr
Mar 28, 9:41 PM MDTWinter Storm WarningRIW41 hr
Mar 31, 12:27 AM MDTWinter Weather AdvisoryRIW42 hr
Mar 31, 9:14 PM MDTWinter Storm WarningRIW5 hr
Apr 2, 12:41 AM MDTWinter Weather AdvisoryRIW65 hr
Apr 2, 1:08 PM MDTWinter Storm WarningRIW53 hr
Apr 8, 11:09 AM MDTWinter Storm WatchRIW3 hr
Apr 8, 2:30 PM MDTWinter Storm WarningRIW20 hr
Apr 8, 2:30 PM MDTWinter Weather AdvisoryRIW20 hr
Apr 13, 1:36 AM MDTWinter Storm WatchRIW23 hr
Apr 14, 12:25 AM MDTWinter Weather AdvisoryRIW21 hr
Apr 14, 1:02 PM MDTWinter Storm WatchRIW49 hr
Apr 15, 1:33 PM MDTWinter Weather AdvisoryRIW43 hr
Apr 23, 8:54 PM MDTWinter Weather AdvisoryRIW18 hr
Apr 25, 3:13 PM MDTWinter Weather AdvisoryRIW39 hr
Apr 27, 2:13 PM MDTWinter Weather AdvisoryRIW37 hr
Jun 21, 6:50 PM MDTMesoscale DiscussionSPC55 min
Jul 3, 5:20 PM MDTSpecial Weather StatementRIW55 min
Jul 3, 6:01 PM MDTSevere Thunderstorm WarningRIW48 min
Jul 12, 2:20 PM MDTSpecial Weather StatementRIW55 min
Jul 27, 1:10 PM MDTMesoscale DiscussionSPC3 hr
Aug 6, 2:16 PM MDTMesoscale DiscussionSPC59 min
Aug 12, 3:52 PM MDTFire Weather WatchRIW11 hr
Aug 13, 11:11 AM MDTRed Flag WarningRIW9 hr
Sep 8, 3:20 AM MDTFreeze WatchRIW11 hr
Sep 8, 2:33 PM MDTFreeze WarningRIW18 hr
Sep 14, 1:23 PM MDTSpecial Weather StatementRIW37 min
Sep 14, 2:58 PM MDTSpecial Weather StatementRIW62 min
Sep 19, 5:57 PM MDTSpecial Weather StatementRIW63 min
Sep 25, 2:31 PM MDTFire Weather WatchRIW10 hr
Sep 26, 12:20 AM MDTRed Flag WarningRIW21 hr
Sep 27, 2:40 AM MDTRed Flag WarningRIW18 hr
Sep 28, 2:46 PM MDTFire Weather WatchRIW12 hr
Sep 29, 2:46 AM MDTRed Flag WarningRIW18 hr
Sep 30, 2:57 AM MDTWinter Weather AdvisoryRIW29 hr
Oct 4, 3:55 AM MDTWinter Storm WarningRIW32 hr
Oct 4, 3:55 AM MDTWinter Weather AdvisoryRIW38 hr
Oct 10, 3:19 PM MDTWinter Weather AdvisoryRIW27 hr
Nov 11, 2:19 AM MSTWinter Weather AdvisoryRIW33 hr
Dec 5, 11:01 AM MSTWinter Weather AdvisoryRIW28 hr
Dec 11, 1:38 PM MSTWinter Storm WatchRIW20 hr
Dec 12, 10:07 AM MSTWinter Storm WarningRIW40 hr
Dec 12, 10:07 AM MSTWinter Weather AdvisoryRIW40 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 archive20082010

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.