Alert archive / Washington / Walla Walla County / 2009
Weather alerts in Walla Walla County, Washington, December 2009
18 weather alerts in December 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 18
- Warnings
- 3
- Watches
- 3
- Advisories
- 10
- Busiest day
- December 15, 20094 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Dec 6, 3:25 AM PST | Wind Advisory | PDT | 16 hr |
| Dec 11, 3:56 AM PST | Winter Storm Watch | PDT | 11 hr |
| Dec 11, 3:56 AM PST | Winter Weather Advisory | PDT | 59 hr |
| Dec 11, 2:52 PM PST | Winter Storm Warning | PDT | 48 hr |
| Dec 13, 3:13 PM PST | Winter Storm Watch | PDT | 24 hr |
| Dec 14, 4:01 AM PST | Winter Weather Advisory | PDT | 54 hr |
| Dec 15, 3:46 AM PST | Mesoscale Discussion | SPC | 4 hr |
| Dec 15, 9:25 AM PST | Mesoscale Discussion | SPC | 4 hr |
| Dec 15, 12:29 PM PST | Ice Storm Warning | PDT | 16 hr |
| Dec 15, 12:29 PM PST | Freezing Rain Advisory | PDT | 16 hr |
| Dec 16, 3:56 PM PST | Dense Fog Advisory | PDT | 3 hr |
| Dec 18, 6:57 AM PST | Dense Fog Advisory | PDT | 3 days |
| Dec 23, 2:25 PM PST | Air Stagnation Advisory | PDT | 7 days |
| Dec 29, 4:01 AM PST | Winter Weather Advisory | PDT | 30 hr |
| Dec 30, 4:27 AM PST | Winter Storm Watch | PDT | 10 hr |
| Dec 30, 2:54 PM PST | Winter Storm Warning | PDT | 42 hr |
| Dec 30, 2:54 PM PST | Winter Weather Advisory | PDT | 42 hr |
| Dec 30, 2:54 PM PST | Freezing Rain Advisory | PDT | 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 | |
| Mesoscale Discussion | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
| Dense Fog Advisory | 2 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.