Alert archive / Idaho / Lemhi County
Weather alerts in Lemhi County, Idaho, 2013
109 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lemhi County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 109
- Warnings
- 35
- Watches
- 19
- Advisories
- 33
- Busiest month
- August32 alerts
- Busiest day
- September 5, 20136 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Lemhi County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 1 | 50% | 10 | 50% | 17 min |
| Flash flood warnings | 6 | 0 | 100% | 2 | 0% |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: tornado warnings | 0 | 1 | 0% | |||
| NWS Missoula, MT: severe thunderstorm warnings | 35 | 16 | 54% | 51 | 59% | 17 min |
| NWS Missoula, MT: flash flood warnings | 8 | 0 | 100% | 4 | 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 6, 1:59 PM MST | Winter Weather Advisory | MSO | 39 hr |
| Jan 9, 11:43 AM MST | Winter Weather Advisory | MSO | 49 hr |
| Jan 14, 10:04 AM MST | Flood Watch | MSO | 25 hr |
| Jan 20, 12:06 PM MST | Flood Watch | MSO | 8 days |
| Jan 25, 2:17 PM MST | Winter Weather Advisory | MSO | 45 hr |
| Jan 28, 3:25 AM MST | Winter Weather Advisory | MSO | 62 hr |
| Feb 9, 1:19 PM MST | Winter Weather Advisory | MSO | 22 hr |
| Feb 11, 1:32 PM MST | Winter Weather Advisory | MSO | 45 hr |
| Feb 22, 4:10 AM MST | Winter Weather Advisory | MSO | 40 hr |
| Feb 25, 8:47 AM MST | Winter Weather Advisory | MSO | 19 hr |
| Mar 1, 11:06 AM MST | Winter Weather Advisory | MSO | 46 hr |
| Mar 5, 2:07 PM MST | Winter Weather Advisory | MSO | 21 hr |
| Mar 10, 2:35 PM MDT | Winter Weather Advisory | MSO | 21 hr |
| Mar 15, 2:15 PM MDT | Winter Weather Advisory | MSO | 4 days |
| Mar 20, 7:19 PM MDT | Special Weather Statement | MSO | 56 min |
| Apr 12, 10:18 AM MDT | Wind Advisory | MSO | 35 hr |
| Apr 12, 10:33 AM MDT | Winter Weather Advisory | MSO | 25 hr |
| Apr 13, 2:11 PM MDT | Winter Weather Advisory | MSO | 22 hr |
| Apr 18, 2:30 PM MDT | Winter Weather Advisory | MSO | 18 hr |
| Apr 20, 3:31 AM MDT | Winter Weather Advisory | MSO | 53 hr |
| Apr 28, 10:21 AM MDT | High Wind Warning | MSO | 35 hr |
| Apr 28, 10:21 AM MDT | Wind Advisory | MSO | 35 hr |
| May 13, 8:08 AM MDT | Wind Advisory | MSO | 13 hr |
| May 17, 11:20 AM MDT | Winter Weather Advisory | MSO | 9 hr |
| May 23, 11:56 AM MDT | Winter Weather Advisory | MSO | 16 hr |
| Jun 10, 2:42 PM MDT | Special Weather Statement | MSO | 33 min |
| Jun 10, 2:53 PM MDT | Severe Thunderstorm Warning | MSO | 37 min |
| Jun 10, 6:20 PM MDT | Special Weather Statement | MSO | 40 min |
| Jun 10, 7:16 PM MDT | Special Weather Statement | MSO | 44 min |
| Jun 10, 7:20 PM MDT | Flash Flood Warning | MSO | 3 hr |
| Jun 10, 8:04 PM MDT | Special Weather Statement | MSO | 56 min |
| Jun 28, 1:26 PM MDT | Heat Advisory | MSO | 4 days |
| Jun 29, 1:34 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 6:59 PM MDT | Flash Flood Warning | MSO | 2 hr |
| Jun 29, 7:48 PM MDT | Flash Flood Warning | MSO | 87 min |
| Jul 1, 7:25 PM MDT | Special Weather Statement | MSO | 50 min |
| Jul 2, 4:19 PM MDT | Flash Flood Warning | MSO | 3 hr |
| Jul 2, 4:46 PM MDT | Special Weather Statement | MSO | 44 min |
| Jul 10, 2:42 PM MDT | Special Weather Statement | MSO | 48 min |
| Jul 10, 4:28 PM MDT | Special Weather Statement | MSO | 47 min |
| Jul 16, 9:39 AM MDT | Flash Flood Watch | MSO | 14 hr |
| Jul 17, 2:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 2:31 PM MDT | Special Weather Statement | MSO | 29 min |
| Jul 17, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 3:17 PM MDT | Areal Flood Advisory | MSO | 58 min |
| Jul 25, 2:43 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Jul 26, 2:27 PM MDT | Red Flag Warning | PIH | 24 hr |
| Jul 29, 2:57 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 29, 9:16 PM MDT | Red Flag Warning | PIH | 6 hr |
| Jul 30, 3:06 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 31, 2:14 AM MDT | Red Flag Warning | PIH | 25 hr |
| Aug 1, 2:57 AM MDT | Red Flag Warning | PIH | 19 hr |
| Aug 1, 12:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Aug 1, 1:05 PM MDT | Special Weather Statement | MSO | 55 min |
| Aug 1, 1:26 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 1, 1:55 PM MDT | Severe Thunderstorm Warning | MSO | 35 min |
| Aug 3, 6:35 PM MDT | Fire Weather Watch | PIH | 8 hr |
| Aug 4, 2:23 AM MDT | Red Flag Warning | PIH | 19 hr |
| Aug 4, 2:07 PM MDT | Fire Weather Watch | PIH | 14 hr |
| Aug 5, 4:15 AM MDT | Red Flag Warning | PIH | 18 hr |
| Aug 7, 2:07 PM MDT | Red Flag Warning | PIH | 31 hr |
| Aug 8, 3:14 AM MDT | Fire Weather Watch | PIH | 25 hr |
| Aug 9, 4:07 AM MDT | Red Flag Warning | PIH | 18 hr |
| Aug 9, 2:17 PM MDT | Special Weather Statement | MSO | 43 min |
| Aug 9, 3:54 PM MDT | Flash Flood Warning | MSO | 96 min |
| Aug 10, 3:54 AM MDT | Fire Weather Watch | PIH | 24 hr |
| Aug 10, 3:54 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 11, 3:35 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 12, 3:39 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 12, 2:23 PM MDT | Red Flag Warning | PIH | 30 hr |
| Aug 13, 8:50 PM MDT | Fire Weather Watch | PIH | 18 hr |
| Aug 14, 2:16 PM MDT | Red Flag Warning | PIH | 3 days |
| Aug 18, 3:35 AM MDT | Red Flag Warning | PIH | 16 hr |
| Aug 18, 8:08 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Aug 19, 3:58 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 19, 9:13 PM MDT | Red Flag Warning | PIH | 3 days |
| Aug 23, 3:47 AM MDT | Red Flag Warning | PIH | 18 hr |
| Aug 24, 3:19 AM MDT | Red Flag Warning | PIH | 19 hr |
| Aug 24, 2:09 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Aug 24, 3:47 PM MDT | Special Weather Statement | MSO | 43 min |
| Aug 25, 3:34 AM MDT | Red Flag Warning | PIH | 19 hr |
| Aug 26, 3:01 AM MDT | Fire Weather Watch | PIH | 11 hr |
| Aug 26, 2:14 PM MDT | Red Flag Warning | PIH | 55 hr |
| Sep 2, 2:34 PM MDT | Flash Flood Watch | MSO | 30 hr |
| Sep 4, 9:55 PM MDT | Flash Flood Warning | MSO | 2 hr |
| Sep 5, 9:42 AM MDT | Flash Flood Watch | MSO | 11 hr |
| Sep 5, 2:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Sep 5, 3:56 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 5:34 PM MDT | Special Weather Statement | MSO | 41 min |
| Sep 5, 5:58 PM MDT | Areal Flood Advisory | MSO | 2 hr |
| Sep 5, 6:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 5, 10:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 12:05 PM MDT | Winter Storm Watch | MSO | 24 hr |
| Sep 24, 11:50 AM MDT | Winter Storm Warning | MSO | 48 hr |
| Sep 24, 5:27 PM MDT | Special Weather Statement | MSO | 48 min |
| Sep 27, 2:19 PM MDT | High Wind Watch | MSO | 24 hr |
| Sep 28, 2:27 PM MDT | High Wind Warning | MSO | 21 hr |
| Sep 29, 1:54 PM MDT | Winter Weather Advisory | MSO | 21 hr |
| Oct 2, 10:59 AM MDT | Winter Weather Advisory | MSO | 33 hr |
| Oct 26, 1:54 PM MDT | Winter Storm Warning | MSO | 67 hr |
| Oct 27, 4:07 AM MDT | Winter Weather Advisory | MSO | 38 hr |
| Nov 14, 3:09 PM MST | Winter Weather Advisory | MSO | 4 days |
| Nov 19, 9:40 AM MST | Winter Weather Advisory | MSO | 17 hr |
| Nov 29, 2:38 PM MST | Winter Storm Watch | MSO | 48 hr |
| Nov 30, 3:03 PM MST | Winter Storm Warning | MSO | 68 hr |
| Dec 3, 11:13 AM MST | Wind Chill Advisory | MSO | 24 hr |
| Dec 17, 12:24 PM MST | Winter Weather Advisory | MSO | 47 hr |
| Dec 19, 10:59 AM MST | Winter Weather Advisory | MSO | 48 hr |
| Dec 30, 1:51 PM MST | Winter Weather Advisory | MSO | 33 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 | 2 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 15 |
| Flooding | |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 26 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 22 |
| Fire Weather Watch | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.