Alert archive / Idaho / Clearwater County
Weather alerts in Clearwater County, Idaho, 2019
63 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clearwater County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 63
- Warnings
- 7
- Watches
- 13
- Advisories
- 36
- Busiest month
- February17 alerts
- Busiest day
- May 16, 20194 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Clearwater County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Missoula, MT: severe thunderstorm warnings | 35 | 14 | 60% | 52 | 35% | 9 min |
| NWS Missoula, MT: flash flood warnings | 1 | 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 2:36 AM PST | Winter Weather Advisory | MSO | 46 hr |
| Jan 8, 2:12 AM PST | Winter Weather Advisory | MSO | 32 hr |
| Jan 16, 12:16 PM PST | Winter Weather Advisory | MSO | 44 hr |
| Jan 19, 12:24 PM PST | Winter Weather Advisory | MSO | 43 hr |
| Jan 22, 9:02 AM PST | Winter Weather Advisory | MSO | 32 hr |
| Jan 31, 1:50 PM PST | Winter Storm Watch | MSO | 44 hr |
| Feb 2, 9:51 AM PST | Winter Storm Warning | MSO | 48 hr |
| Feb 7, 10:19 AM PST | Winter Weather Advisory | MSO | 3 days |
| Feb 10, 1:57 PM PST | Winter Storm Watch | MSO | 20 hr |
| Feb 10, 1:57 PM PST | Winter Weather Advisory | MSO | 42 hr |
| Feb 11, 10:08 AM PST | Winter Storm Warning | MSO | 54 hr |
| Feb 12, 4:15 PM PST | Winter Weather Advisory | MSO | 39 hr |
| Feb 13, 1:39 PM PST | Winter Weather Advisory | MSO | 8 hr |
| Feb 14, 9:43 AM PST | Winter Weather Advisory | MSO | 46 hr |
| Feb 16, 8:07 AM PST | Winter Weather Advisory | MSO | 48 hr |
| Feb 18, 2:54 AM PST | Winter Storm Watch | MSO | 32 hr |
| Feb 18, 2:03 PM PST | Winter Weather Advisory | MSO | 47 hr |
| Feb 19, 3:00 AM PST | Winter Storm Warning | MSO | 34 hr |
| Feb 20, 1:27 PM PST | Winter Weather Advisory | MSO | 17 hr |
| Feb 23, 6:45 AM PST | Winter Weather Advisory | MSO | 3 days |
| Feb 23, 12:45 PM PST | Winter Storm Watch | MSO | 38 hr |
| Feb 27, 5:17 AM PST | Winter Weather Advisory | MSO | 14 hr |
| Feb 27, 7:20 PM PST | Winter Weather Advisory | MSO | 25 hr |
| Mar 6, 1:00 PM PST | Winter Weather Advisory | MSO | 21 hr |
| Apr 7, 12:49 PM PDT | Flood Watch | MSO | 45 hr |
| Apr 9, 10:11 AM PDT | Areal Flood Advisory | MSO | 12 hr |
| Apr 11, 1:09 PM PDT | Flood Watch | MSO | 19 hr |
| Apr 20, 4:34 AM PDT | Flood Watch | MSO | 24 hr |
| Apr 28, 7:07 AM PDT | Freeze Warning | MSO | 25 hr |
| May 16, 3:13 AM PDT | Flood Watch | MSO | 17 hr |
| May 16, 2:35 PM PDT | Severe Thunderstorm Warning | MSO | 25 min |
| May 16, 2:52 PM PDT | Mesoscale Discussion | SPC | 113 min |
| May 16, 3:58 PM PDT | Special Weather Statement | MSO | 47 min |
| Jun 26, 1:24 PM PDT | Mesoscale Discussion | SPC | 96 min |
| Jun 26, 4:46 PM PDT | Special Weather Statement | MSO | 44 min |
| Jul 23, 3:13 PM PDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 1:29 PM PDT | Fire Weather Watch | MSO | 13 hr |
| Aug 8, 2:12 AM PDT | Red Flag Warning | MSO | 18 hr |
| Aug 9, 1:23 PM PDT | Flash Flood Watch | MSO | 32 hr |
| Aug 10, 10:41 AM PDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 12:36 PM PDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 10, 3:53 PM PDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 24, 1:03 PM PDT | Winter Storm Watch | MSO | 5 days |
| Sep 26, 1:33 PM PDT | Winter Storm Warning | MSO | 3 days |
| Sep 28, 8:46 AM PDT | Winter Weather Advisory | MSO | 32 hr |
| Oct 7, 10:17 PM PDT | Winter Weather Advisory | MSO | 49 hr |
| Oct 18, 11:22 AM PDT | Winter Weather Advisory | MSO | 45 hr |
| Oct 28, 2:25 AM PDT | Wind Advisory | MSO | 18 hr |
| Nov 1, 9:21 AM PDT | Air Stagnation Advisory | MSO | 11 days |
| Nov 25, 10:51 AM PST | Winter Weather Advisory | MSO | 23 hr |
| Nov 28, 12:48 PM PST | Winter Weather Advisory | MSO | 45 hr |
| Nov 30, 11:34 AM PST | Winter Weather Advisory | MSO | 23 hr |
| Dec 6, 1:15 PM PST | Winter Weather Advisory | MSO | 52 hr |
| Dec 11, 2:31 AM PST | Winter Weather Advisory | MSO | 55 hr |
| Dec 11, 6:08 AM PST | Winter Weather Advisory | MSO | 3 hr |
| Dec 13, 12:54 PM PST | Winter Weather Advisory | MSO | 23 hr |
| Dec 14, 12:52 PM PST | Winter Weather Advisory | MSO | 45 hr |
| Dec 18, 11:46 AM PST | Winter Weather Advisory | MSO | 22 hr |
| Dec 24, 6:31 PM PST | Freezing Fog Advisory | MSO | 15 hr |
| Dec 28, 9:53 PM PST | Winter Weather Advisory | MSO | 13 hr |
| Dec 30, 2:56 AM PST | Winter Storm Watch | MSO | 11 hr |
| Dec 30, 1:26 PM PST | Winter Weather Advisory | MSO | 69 hr |
| Dec 30, 3:07 PM PST | Winter Weather Advisory | MSO | 26 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 | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 4 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 32 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
| Freezing Fog Advisory | 1 |
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.