Alert archive / Idaho / Latah County
Weather alerts in Latah County, Idaho, 2011
65 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Latah County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 65
- Warnings
- 20
- Watches
- 13
- Advisories
- 31
- Busiest month
- January13 alerts
- Busiest day
- January 16, 20113 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Latah County, 2011
| 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, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Spokane, WA: tornado warnings | 0 | 1 | 0% | |||
| NWS Spokane, WA: severe thunderstorm warnings | 3 | 2 | 33% | 6 | 50% | 8 min |
| NWS Spokane, WA: flash flood warnings | 2 | 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 7, 3:39 AM PST | Winter Weather Advisory | OTX | 71 hr |
| Jan 10, 2:38 AM PST | Winter Storm Watch | OTX | 32 hr |
| Jan 10, 1:55 PM PST | Winter Storm Warning | OTX | 3 days |
| Jan 11, 11:01 AM PST | Winter Weather Advisory | OTX | 25 hr |
| Jan 14, 3:46 PM PST | Flood Watch | OTX | 68 hr |
| Jan 16, 3:44 AM PST | Wind Advisory | OTX | 39 hr |
| Jan 16, 10:25 AM PST | Areal Flood Advisory | OTX | 51 hr |
| Jan 16, 10:36 AM PST | River Flood Warning | OTX | 52 hr |
| Jan 18, 3:43 AM PST | Winter Weather Advisory | OTX | 24 hr |
| Jan 20, 6:38 AM PST | Winter Weather Advisory | OTX | 11 hr |
| Jan 21, 4:48 AM PST | Winter Storm Warning | OTX | 15 hr |
| Jan 21, 6:47 AM PST | Freezing Rain Advisory | OTX | 6 hr |
| Jan 29, 2:34 AM PST | Winter Weather Advisory | OTX | 34 hr |
| Feb 3, 11:46 AM PST | Winter Weather Advisory | OTX | 25 hr |
| Feb 4, 3:37 AM PST | Freezing Rain Advisory | OTX | 6 hr |
| Feb 6, 3:45 AM PST | Winter Storm Warning | OTX | 42 hr |
| Feb 6, 3:52 AM PST | Wind Advisory | OTX | 35 hr |
| Feb 11, 3:30 PM PST | Wind Advisory | OTX | 34 hr |
| Feb 15, 6:09 AM PST | Winter Storm Warning | OTX | 27 hr |
| Feb 20, 9:56 PM PST | Winter Storm Watch | OTX | 17 hr |
| Feb 21, 3:03 PM PST | Winter Storm Warning | OTX | 4 days |
| Feb 21, 3:03 PM PST | Winter Weather Advisory | OTX | 4 days |
| Feb 25, 2:31 PM PST | Winter Storm Watch | OTX | 21 hr |
| Feb 26, 11:28 AM PST | Winter Storm Warning | OTX | 3 days |
| Feb 26, 7:21 PM PST | Winter Weather Advisory | OTX | 66 hr |
| Feb 28, 9:38 AM PST | Wind Advisory | OTX | 5 hr |
| Mar 10, 9:02 AM PST | Wind Advisory | OTX | 19 hr |
| Mar 20, 2:33 PM PDT | Winter Weather Advisory | OTX | 44 hr |
| Mar 29, 3:17 PM PDT | Wind Advisory | OTX | 53 hr |
| Mar 30, 11:01 AM PDT | River Flood Warning | OTX | 19 hr |
| Mar 30, 1:30 PM PDT | Areal Flood Advisory | OTX | 33 hr |
| Apr 1, 2:33 PM PDT | Flood Watch | OTX | 26 hr |
| Apr 3, 12:08 PM PDT | Flood Watch | OTX | 24 hr |
| Apr 3, 12:50 PM PDT | River Flood Watch | OTX | 21 hr |
| Apr 3, 1:41 PM PDT | Winter Storm Watch | OTX | 16 hr |
| Apr 4, 5:52 AM PDT | Winter Storm Warning | OTX | 29 hr |
| Apr 4, 12:11 PM PDT | Areal Flood Advisory | OTX | 44 hr |
| Apr 4, 9:32 PM PDT | Areal Flood Warning | OTX | 19 hr |
| Apr 5, 8:47 AM PDT | River Flood Warning | OTX | 11 hr |
| Apr 6, 5:57 AM PDT | Winter Storm Warning | OTX | 14 hr |
| Apr 21, 10:12 PM PDT | Winter Weather Advisory | OTX | 11 hr |
| Apr 25, 9:39 PM PDT | Winter Weather Advisory | OTX | 13 hr |
| May 12, 4:21 PM PDT | Flood Watch | OTX | 23 hr |
| May 13, 3:28 PM PDT | Areal Flood Warning | OTX | 4 days |
| May 25, 3:31 AM PDT | Winter Storm Watch | OTX | 8 hr |
| May 25, 11:35 AM PDT | Winter Storm Warning | OTX | 30 hr |
| May 31, 4:15 PM PDT | Special Weather Statement | OTX | 45 min |
| Jun 22, 5:42 PM PDT | Severe Thunderstorm Warning | OTX | 26 min |
| Aug 28, 1:52 AM PDT | Red Flag Warning | MSO | 26 hr |
| Nov 9, 2:26 PM PST | Winter Storm Watch | OTX | 24 hr |
| Nov 10, 2:50 PM PST | Winter Storm Warning | OTX | 42 hr |
| Nov 11, 3:48 AM PST | Wind Advisory | OTX | 20 hr |
| Nov 12, 2:04 PM PST | Winter Weather Advisory | OTX | 19 hr |
| Nov 13, 2:29 PM PST | Winter Weather Advisory | OTX | 21 hr |
| Nov 14, 12:43 AM PST | Wind Advisory | OTX | 15 hr |
| Nov 15, 3:19 PM PST | Winter Storm Watch | OTX | 7 hr |
| Nov 15, 3:19 PM PST | Winter Storm Warning | OTX | 43 hr |
| Nov 17, 10:27 AM PST | Winter Storm Watch | OTX | 8 hr |
| Nov 17, 2:50 PM PST | Winter Storm Warning | OTX | 31 hr |
| Nov 18, 2:26 AM PST | Winter Weather Advisory | OTX | 20 hr |
| Nov 21, 2:07 PM PST | Wind Advisory | OTX | 49 hr |
| Nov 29, 3:45 AM PST | Winter Storm Warning | OTX | 24 hr |
| Dec 1, 10:26 AM PST | Air Stagnation Advisory | OTX | 19 days |
| Dec 24, 12:54 PM PST | Winter Weather Advisory | OTX | 6 hr |
| Dec 26, 11:19 PM PST | Winter Weather Advisory | OTX | 11 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 |
| Special Weather Statement | 1 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 3 |
| Flood Watch | 4 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 13 |
| Winter Storm Watch | 8 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 16 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.