Alert archive / Wyoming / Teton County
Weather alerts in Teton County, Wyoming, 2016
109 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Teton County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 109
- Warnings
- 31
- Watches
- 20
- Advisories
- 26
- Busiest month
- August21 alerts
- Busiest day
- August 7, 201610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Teton County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 2 | 60% | 1 | 100% | 19 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Riverton, WY: tornado warnings | 3 | 0 | 100% | 0 | ||
| NWS Riverton, WY: severe thunderstorm warnings | 46 | 10 | 78% | 33 | 39% | 18 min |
| NWS Riverton, WY: flash flood warnings | 5 | 0 | 100% | 1 | 0% |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 15, 2:05 PM MST | Winter Weather Advisory | RIW | 38 hr |
| Jan 17, 2:58 PM MST | Winter Weather Advisory | RIW | 26 hr |
| Jan 19, 4:24 AM MST | Winter Storm Watch | RIW | 7 hr |
| Jan 19, 11:46 AM MST | Winter Weather Advisory | RIW | 31 hr |
| Jan 23, 1:41 AM MST | Winter Weather Advisory | RIW | 57 hr |
| Jan 28, 1:27 AM MST | Winter Storm Watch | RIW | 12 hr |
| Jan 28, 1:51 PM MST | Winter Storm Warning | RIW | 51 hr |
| Jan 28, 1:51 PM MST | Winter Weather Advisory | RIW | 51 hr |
| Feb 13, 11:51 AM MST | Winter Storm Warning | RIW | 51 hr |
| Feb 13, 11:51 AM MST | Winter Weather Advisory | RIW | 59 hr |
| Feb 16, 1:54 PM MST | Winter Storm Watch | RIW | 25 hr |
| Feb 17, 3:11 PM MST | Winter Storm Warning | RIW | 34 hr |
| Feb 17, 3:11 PM MST | Winter Weather Advisory | RIW | 34 hr |
| Mar 12, 12:44 PM MST | Winter Storm Watch | RIW | 22 hr |
| Mar 13, 3:14 AM MDT | Winter Storm Warning | RIW | 42 hr |
| Mar 14, 8:54 PM MDT | Winter Weather Advisory | RIW | 27 hr |
| Mar 21, 12:56 AM MDT | Winter Weather Advisory | RIW | 59 hr |
| Mar 24, 5:34 PM MDT | Special Weather Statement | RIW | 41 min |
| Mar 24, 7:15 PM MDT | Special Weather Statement | RIW | 45 min |
| Mar 28, 1:16 PM MDT | Winter Weather Advisory | RIW | 53 hr |
| Apr 23, 2:45 AM MDT | Winter Weather Advisory | RIW | 42 hr |
| May 7, 7:39 AM MDT | Flash Flood Watch | RIW | 43 hr |
| May 8, 6:18 PM MDT | Special Weather Statement | RIW | 57 min |
| May 8, 8:02 PM MDT | Severe Thunderstorm Warning | RIW | 28 min |
| May 8, 8:16 PM MDT | Severe Thunderstorm Warning | RIW | 18 min |
| May 8, 8:41 PM MDT | Flash Flood Warning | RIW | 3 hr |
| May 14, 4:59 PM MDT | Special Weather Statement | RIW | 46 min |
| Jun 6, 4:32 PM MDT | Special Weather Statement | RIW | 43 min |
| Jun 6, 5:34 PM MDT | Special Weather Statement | RIW | 41 min |
| Jun 13, 4:22 PM MDT | Special Weather Statement | RIW | 38 min |
| Jun 15, 4:45 PM MDT | Special Weather Statement | RIW | 30 min |
| Jun 15, 5:13 PM MDT | Special Weather Statement | RIW | 47 min |
| Jun 22, 9:05 PM MDT | Red Flag Warning | RIW | 72 hr |
| Jun 28, 5:31 PM MDT | Special Weather Statement | RIW | 44 min |
| Jun 29, 6:19 PM MDT | Special Weather Statement | RIW | 41 min |
| Jul 1, 4:23 PM MDT | Special Weather Statement | RIW | 52 min |
| Jul 1, 4:32 PM MDT | Areal Flood Advisory | RIW | 3 hr |
| Jul 1, 5:49 PM MDT | Special Weather Statement | RIW | 41 min |
| Jul 10, 9:35 AM MDT | Special Weather Statement | RIW | 40 min |
| Jul 10, 12:55 PM MDT | Severe Thunderstorm Warning | RIW | 24 min |
| Jul 10, 4:52 PM MDT | Special Weather Statement | RIW | 38 min |
| Jul 11, 1:32 PM MDT | Freeze Warning | RIW | 19 hr |
| Jul 18, 1:59 PM MDT | Fire Weather Watch | RIW | 36 hr |
| Jul 20, 1:52 AM MDT | Red Flag Warning | RIW | 19 hr |
| Jul 21, 2:06 PM MDT | Fire Weather Watch | RIW | 12 hr |
| Jul 22, 2:16 AM MDT | Red Flag Warning | RIW | 19 hr |
| Jul 29, 10:49 AM MDT | Fire Weather Watch | RIW | 15 hr |
| Jul 30, 1:55 AM MDT | Red Flag Warning | RIW | 18 hr |
| Jul 30, 2:47 PM MDT | Special Weather Statement | RIW | 28 min |
| Aug 2, 9:09 AM MDT | Red Flag Warning | RIW | 12 hr |
| Aug 2, 9:09 AM MDT | Red Flag Warning | RIW | 36 hr |
| Aug 6, 2:37 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 10:28 AM MDT | Special Weather Statement | RIW | 32 min |
| Aug 7, 10:52 AM MDT | Special Weather Statement | RIW | 23 min |
| Aug 7, 10:57 AM MDT | Severe Thunderstorm Warning | RIW | 48 min |
| Aug 7, 11:39 AM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 12:58 PM MDT | Special Weather Statement | RIW | 32 min |
| Aug 7, 1:19 PM MDT | Severe Thunderstorm Warning | RIW | 41 min |
| Aug 7, 1:33 PM MDT | Special Weather Statement | RIW | 27 min |
| Aug 7, 2:07 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 2:10 PM MDT | Special Weather Statement | RIW | 35 min |
| Aug 7, 3:38 PM MDT | Special Weather Statement | RIW | 37 min |
| Aug 7, 9:28 PM MDT | Fire Weather Watch | RIW | 24 hr |
| Aug 8, 9:34 PM MDT | Red Flag Warning | RIW | 23 hr |
| Aug 20, 12:27 PM MDT | Fire Weather Watch | RIW | 14 hr |
| Aug 21, 2:22 AM MDT | Red Flag Warning | RIW | 19 hr |
| Aug 21, 2:01 PM MDT | Red Flag Warning | RIW | 31 hr |
| Aug 22, 11:19 AM MDT | Red Flag Warning | RIW | 34 hr |
| Aug 26, 1:29 PM MDT | Fire Weather Watch | RIW | 12 hr |
| Aug 27, 1:58 AM MDT | Red Flag Warning | RIW | 41 hr |
| Aug 31, 8:32 PM MDT | Fire Weather Watch | RIW | 23 hr |
| Aug 31, 8:32 PM MDT | Red Flag Warning | RIW | 48 hr |
| Sep 5, 2:49 AM MDT | Freeze Watch | RIW | 12 hr |
| Sep 5, 3:03 PM MDT | Freeze Warning | RIW | 18 hr |
| Sep 9, 12:07 PM MDT | Fire Weather Watch | RIW | 15 hr |
| Sep 10, 3:02 AM MDT | Fire Weather Watch | RIW | 18 hr |
| Sep 10, 3:02 AM MDT | Red Flag Warning | RIW | 42 hr |
| Sep 21, 12:32 PM MDT | Flash Flood Watch | RIW | 56 hr |
| Sep 22, 8:04 PM MDT | Special Weather Statement | RIW | 56 min |
| Oct 1, 3:41 PM MDT | Special Weather Statement | RIW | 34 min |
| Oct 2, 6:23 AM MDT | Special Weather Statement | RIW | 37 min |
| Oct 2, 6:49 AM MDT | Special Weather Statement | RIW | 41 min |
| Oct 2, 12:12 PM MDT | Special Weather Statement | RIW | 48 min |
| Oct 2, 12:15 PM MDT | Winter Weather Advisory | RIW | 48 hr |
| Oct 2, 12:38 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 2, 12:49 PM MDT | Special Weather Statement | RIW | 41 min |
| Oct 4, 1:39 PM MDT | Winter Weather Advisory | RIW | 22 hr |
| Oct 14, 1:16 AM MDT | Winter Weather Advisory | RIW | 29 hr |
| Oct 15, 10:36 PM MDT | Winter Weather Advisory | RIW | 38 hr |
| Oct 17, 10:21 PM MDT | Winter Weather Advisory | RIW | 27 hr |
| Oct 27, 10:26 PM MDT | Winter Weather Advisory | RIW | 36 hr |
| Nov 15, 9:45 PM MST | Winter Weather Advisory | RIW | 47 hr |
| Nov 20, 12:16 PM MST | Winter Weather Advisory | RIW | 41 hr |
| Nov 23, 1:20 AM MST | Winter Weather Advisory | RIW | 25 hr |
| Nov 28, 2:13 AM MST | Winter Weather Advisory | RIW | 12 hr |
| Dec 2, 9:25 PM MST | Winter Storm Watch | RIW | 14 hr |
| Dec 3, 11:53 AM MST | Winter Storm Warning | RIW | 45 hr |
| Dec 7, 3:30 AM MST | Winter Storm Watch | RIW | 26 hr |
| Dec 8, 5:26 AM MST | Winter Storm Warning | RIW | 58 hr |
| Dec 11, 2:24 AM MST | Winter Weather Advisory | RIW | 39 hr |
| Dec 13, 3:08 AM MST | Winter Storm Watch | RIW | 57 hr |
| Dec 14, 3:32 AM MST | Winter Storm Warning | RIW | 68 hr |
| Dec 19, 12:50 PM MST | Winter Storm Warning | RIW | 25 hr |
| Dec 19, 12:50 PM MST | Winter Weather Advisory | RIW | 35 hr |
| Dec 24, 1:51 AM MST | Winter Weather Advisory | RIW | 45 hr |
| Dec 24, 1:38 PM MST | Winter Storm Warning | RIW | 21 hr |
| Dec 26, 8:40 AM MST | Winter Weather Advisory | RIW | 53 hr |
| Dec 26, 10:44 AM MST | Winter Storm Watch | RIW | 11 hr |
| Dec 26, 9:40 PM MST | Winter Storm Warning | RIW | 40 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 5 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 28 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 10 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 25 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Fire | |
| Red Flag Warning | 13 |
| Fire Weather Watch | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.