Alert archive / Washington / Whitman County
Weather alerts in Whitman County, Washington, 2010
46 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Whitman County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 46
- Warnings
- 16
- Watches
- 5
- Advisories
- 21
- Busiest month
- November13 alerts
- Busiest day
- July 31, 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.
Whitman County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 0 | 100% | 2 | 0% | |
| 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 Spokane, WA: tornado warnings | 1 | 0 | 100% | 5 | 0% | |
| NWS Spokane, WA: severe thunderstorm warnings | 16 | 6 | 63% | 22 | 73% | 23 min |
| NWS Spokane, WA: flash flood warnings | 3 | 0 | 100% | 11 | 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 5, 10:52 AM PST | Areal Flood Advisory | OTX | 8 hr |
| Jan 8, 4:10 AM PST | Winter Weather Advisory | OTX | 16 days |
| Jan 26, 4:51 PM PST | Dense Fog Advisory | OTX | 13 hr |
| Feb 7, 5:19 AM PST | Dense Fog Advisory | OTX | 6 hr |
| Mar 28, 3:11 PM PDT | Wind Advisory | OTX | 29 hr |
| Apr 1, 3:02 PM PDT | Wind Advisory | OTX | 30 hr |
| Apr 7, 3:35 AM PDT | Wind Advisory | OTX | 40 hr |
| Apr 17, 11:23 PM PDT | Areal Flood Advisory | OTX | 3 hr |
| May 1, 2:36 PM PDT | High Wind Watch | OTX | 24 hr |
| May 2, 2:43 PM PDT | High Wind Warning | OTX | 31 hr |
| May 3, 9:48 AM PDT | Dust Storm Warning | OTX | 11 hr |
| May 17, 12:48 PM PDT | Mesoscale Discussion | SPC | 57 min |
| May 19, 2:58 PM PDT | Wind Advisory | OTX | 9 hr |
| May 20, 7:59 AM PDT | Freeze Warning | OTX | 24 hr |
| Jun 3, 2:36 PM PDT | Flood Watch | OTX | 31 hr |
| Jun 5, 11:36 AM PDT | River Flood Warning | OTX | 3 days |
| Jun 28, 9:29 PM PDT | Severe Thunderstorm Warning | OTX | 61 min |
| Jun 28, 10:44 PM PDT | Special Weather Statement | OTX | 46 min |
| Jul 11, 11:08 AM PDT | Wind Advisory | OTX | 35 hr |
| Jul 22, 10:49 AM PDT | Blowing Dust Advisory | OTX | 9 hr |
| Jul 31, 3:05 AM PDT | Special Weather Statement | OTX | 55 min |
| Jul 31, 3:27 AM PDT | Mesoscale Discussion | SPC | 93 min |
| Jul 31, 3:35 AM PDT | Severe Thunderstorm Warning | OTX | 55 min |
| Aug 6, 2:53 PM PDT | Severe Thunderstorm Warning | OTX | 35 min |
| Aug 25, 2:52 PM PDT | Blowing Dust Advisory | OTX | 30 hr |
| Aug 25, 9:01 PM PDT | Wind Advisory | OTX | 24 hr |
| Nov 15, 3:38 AM PST | High Wind Warning | OTX | 30 hr |
| Nov 15, 3:38 AM PST | Wind Advisory | OTX | 30 hr |
| Nov 16, 1:31 AM PST | Severe Thunderstorm Warning | OTX | 44 min |
| Nov 18, 2:39 AM PST | Winter Weather Advisory | OTX | 8 hr |
| Nov 20, 3:17 PM PST | Winter Storm Watch | OTX | 21 hr |
| Nov 21, 11:52 AM PST | Winter Storm Warning | OTX | 46 hr |
| Nov 22, 12:44 PM PST | Blizzard Warning | OTX | 21 hr |
| Nov 24, 2:46 PM PST | Winter Storm Watch | OTX | 37 hr |
| Nov 25, 10:23 AM PST | Winter Storm Warning | OTX | 65 hr |
| Nov 28, 4:11 AM PST | Dense Fog Advisory | OTX | 8 hr |
| Nov 28, 12:14 PM PST | Dense Fog Advisory | OTX | 23 hr |
| Nov 28, 2:48 PM PST | Winter Storm Watch | OTX | 13 hr |
| Nov 29, 4:06 AM PST | Winter Storm Warning | OTX | 54 hr |
| Dec 1, 3:21 PM PST | Winter Weather Advisory | OTX | 36 hr |
| Dec 2, 6:49 PM PST | Dense Fog Advisory | OTX | 15 hr |
| Dec 17, 12:14 PM PST | Winter Weather Advisory | OTX | 33 hr |
| Dec 19, 3:58 AM PST | Winter Weather Advisory | OTX | 30 hr |
| Dec 19, 12:16 PM PST | Winter Storm Warning | OTX | 22 hr |
| Dec 27, 4:49 AM PST | Winter Storm Warning | OTX | 70 hr |
| Dec 28, 3:09 PM PST | Blizzard Warning | OTX | 28 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 | 4 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 2 |
| Flooding | |
| River Flood Warning | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 5 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Dust Storm Warning | 1 |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Blowing Dust Advisory | 2 |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.