Alert archive / Idaho / Clearwater County
Weather alerts in Clearwater County, Idaho, 2010
79 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 79
- Warnings
- 12
- Watches
- 7
- Advisories
- 43
- Busiest month
- December18 alerts
- Busiest day
- June 20, 20103 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 2 | 33% | 7 | 57% | 27 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| 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 | 53 | 23 | 57% | 67 | 55% | 19 min |
| NWS Missoula, MT: flash flood warnings | 7 | 0 | 100% | 2 | 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 1, 4:14 AM PST | Winter Weather Advisory | MSO | 33 hr |
| Jan 4, 12:49 PM PST | Winter Weather Advisory | MSO | 39 hr |
| Jan 8, 2:02 PM PST | Winter Weather Advisory | MSO | 24 hr |
| Jan 11, 9:32 AM PST | Wind Advisory | MSO | 24 hr |
| Jan 14, 1:21 PM PST | Wind Advisory | MSO | 30 hr |
| Jan 22, 2:47 AM PST | Winter Storm Watch | MSO | 11 hr |
| Jan 22, 6:46 AM PST | Winter Storm Warning | MSO | 37 hr |
| Jan 30, 8:41 PM PST | Winter Weather Advisory | MSO | 17 hr |
| Mar 8, 1:23 PM PST | Winter Weather Advisory | MSO | 21 hr |
| Mar 12, 3:14 AM PST | Winter Weather Advisory | MSO | 31 hr |
| Mar 28, 10:38 AM PDT | Wind Advisory | MSO | 8 hr |
| Mar 29, 2:32 AM PDT | Wind Advisory | MSO | 14 hr |
| Apr 1, 2:03 PM PDT | Wind Advisory | MSO | 31 hr |
| Apr 2, 2:40 AM PDT | Winter Weather Advisory | MSO | 24 hr |
| Apr 7, 1:22 PM PDT | High Wind Warning | MSO | 31 hr |
| Apr 7, 1:22 PM PDT | Wind Advisory | MSO | 31 hr |
| Apr 27, 5:22 AM PDT | Wind Advisory | MSO | 6 hr |
| Apr 28, 4:20 AM PDT | Winter Weather Advisory | MSO | 7 hr |
| Apr 28, 1:59 PM PDT | Winter Weather Advisory | MSO | 39 hr |
| May 2, 10:13 AM PDT | High Wind Warning | MSO | 41 hr |
| May 2, 10:13 AM PDT | Wind Advisory | MSO | 28 hr |
| May 5, 3:21 AM PDT | Winter Weather Advisory | MSO | 27 hr |
| May 17, 2:30 PM PDT | Special Weather Statement | MSO | 45 min |
| May 17, 3:24 PM PDT | Special Weather Statement | MSO | 81 min |
| Jun 2, 6:44 PM PDT | Areal Flood Advisory | MSO | 3 hr |
| Jun 3, 10:44 AM PDT | Flood Watch | MSO | 51 hr |
| Jun 6, 2:32 AM PDT | Flood Watch | MSO | 31 hr |
| Jun 9, 3:39 PM PDT | Special Weather Statement | MSO | 51 min |
| Jun 19, 7:06 PM PDT | Special Weather Statement | MSO | 39 min |
| Jun 19, 7:08 PM PDT | Special Weather Statement | MSO | 67 min |
| Jun 20, 12:20 AM PDT | Flood Watch | MSO | 37 hr |
| Jun 23, 7:38 PM PDT | Special Weather Statement | MSO | 67 min |
| Jun 29, 12:41 PM PDT | Mesoscale Discussion | SPC | 64 min |
| Jun 29, 1:31 PM PDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 31, 11:53 AM PDT | Mesoscale Discussion | SPC | 67 min |
| Jul 31, 4:13 PM PDT | Mesoscale Discussion | SPC | 92 min |
| Jul 31, 4:25 PM PDT | Severe Thunderstorm Warning | MSO | 50 min |
| Jul 31, 5:58 PM PDT | Severe Thunderstorm Warning | MSO | 32 min |
| Aug 6, 1:44 AM PDT | Special Weather Statement | MSO | 61 min |
| Aug 6, 2:41 AM PDT | Special Weather Statement | MSO | 64 min |
| Aug 9, 2:40 PM PDT | Special Weather Statement | MSO | 50 min |
| Aug 9, 6:23 PM PDT | Special Weather Statement | MSO | 52 min |
| Aug 9, 7:12 PM PDT | Special Weather Statement | MSO | 48 min |
| Aug 10, 9:29 PM PDT | Special Weather Statement | MSO | 46 min |
| Aug 20, 11:00 AM PDT | Red Flag Warning | MSO | 33 hr |
| Aug 25, 1:14 PM PDT | Red Flag Warning | MSO | 34 hr |
| Aug 26, 10:22 AM PDT | Wind Advisory | MSO | 12 hr |
| Sep 19, 1:36 PM PDT | Special Weather Statement | MSO | 39 min |
| Oct 7, 5:30 PM PDT | Areal Flood Advisory | MSO | 2 hr |
| Oct 8, 2:22 PM PDT | Dense Fog Advisory | MSO | 14 hr |
| Oct 23, 12:35 PM PDT | Winter Weather Advisory | MSO | 70 hr |
| Oct 24, 8:22 AM PDT | Wind Advisory | MSO | 3 hr |
| Oct 30, 6:44 AM PDT | Dense Fog Advisory | MSO | 3 hr |
| Nov 5, 6:30 AM PDT | Dense Fog Advisory | MSO | 6 hr |
| Nov 14, 1:24 PM PST | Winter Weather Advisory | MSO | 69 hr |
| Nov 15, 10:38 AM PST | Wind Advisory | MSO | 20 hr |
| Nov 16, 2:04 AM PST | Severe Thunderstorm Warning | MSO | 52 min |
| Nov 17, 12:52 PM PST | Wind Advisory | MSO | 14 hr |
| Nov 21, 2:05 AM PST | Winter Storm Warning | MSO | 58 hr |
| Nov 25, 7:02 AM PST | Winter Weather Advisory | MSO | 3 days |
| Nov 29, 12:57 PM PST | Winter Weather Advisory | MSO | 43 hr |
| Dec 1, 1:47 PM PST | Winter Weather Advisory | MSO | 38 hr |
| Dec 2, 2:58 AM PST | Winter Storm Warning | MSO | 25 hr |
| Dec 8, 2:30 AM PST | Winter Storm Watch | MSO | 35 hr |
| Dec 8, 6:25 AM PST | Wind Advisory | MSO | 7 hr |
| Dec 8, 1:40 PM PST | Winter Storm Warning | MSO | 56 hr |
| Dec 9, 1:46 PM PST | Wind Advisory | MSO | 17 hr |
| Dec 10, 1:54 PM PST | Winter Weather Advisory | MSO | 46 hr |
| Dec 14, 6:44 AM PST | Special Weather Statement | MSO | 91 min |
| Dec 18, 2:42 AM PST | Winter Weather Advisory | MSO | 17 hr |
| Dec 19, 2:52 AM PST | Winter Weather Advisory | MSO | 33 hr |
| Dec 22, 5:46 PM PST | Winter Weather Advisory | MSO | 8 hr |
| Dec 23, 8:26 PM PST | Freezing Fog Advisory | MSO | 11 hr |
| Dec 26, 2:38 AM PST | Winter Weather Advisory | MSO | 38 hr |
| Dec 26, 5:27 AM PST | Freezing Rain Advisory | MSO | 5 hr |
| Dec 27, 2:49 AM PST | Winter Storm Watch | MSO | 31 hr |
| Dec 27, 4:17 PM PST | Winter Storm Warning | MSO | 60 hr |
| Dec 28, 1:55 AM PST | Wind Advisory | MSO | 8 hr |
| Dec 28, 9:43 AM PST | Winter Weather Advisory | MSO | 46 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 | 3 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 14 |
| Flooding | |
| Flood Watch | 3 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 21 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 15 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.