Alert archive / Nevada / Humboldt County
Weather alerts in Humboldt County, Nevada, 2009
31 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Humboldt County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 31
- Warnings
- 9
- Watches
- 2
- Advisories
- 14
- Busiest month
- June9 alerts
- Busiest day
- June 5, 20094 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Humboldt County in 2009 had a tornado report inside them.
Humboldt County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 5 | 0 | 100% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 28 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Elko, NV: tornado warnings | 1 | 0 | 100% | 2 | 0% | |
| NWS Elko, NV: severe thunderstorm warnings | 26 | 2 | 92% | 7 | 29% | 13 min |
| NWS Elko, NV: flash flood warnings | 5 | 1 | 80% | 1 | 100% | 28 min |
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 14, 9:46 PM PST | Dense Fog Advisory | LKN | 12 hr |
| Jan 15, 4:13 PM PST | Dense Fog Advisory | LKN | 18 hr |
| Jan 24, 11:00 PM PST | Winter Weather Advisory | LKN | 16 hr |
| Feb 8, 2:14 AM PST | Winter Weather Advisory | LKN | 44 hr |
| Mar 3, 3:54 PM PST | Winter Weather Advisory | LKN | 32 hr |
| Mar 16, 1:06 AM PDT | Wind Advisory | LKN | 18 hr |
| Mar 28, 2:39 PM PDT | Wind Advisory | LKN | 29 hr |
| Mar 31, 2:54 PM PDT | Wind Advisory | LKN | 27 hr |
| May 6, 3:56 AM PDT | Wind Advisory | LKN | 15 hr |
| Jun 4, 1:55 PM PDT | Special Weather Statement | LKN | 20 min |
| Jun 4, 10:07 PM PDT | Special Weather Statement | LKN | 38 min |
| Jun 5, 12:46 PM PDT | Special Weather Statement | LKN | 29 min |
| Jun 5, 2:39 PM PDT | Special Weather Statement | LKN | 36 min |
| Jun 5, 3:02 PM PDT | Flash Flood Warning | LKN | 3 hr |
| Jun 15, 6:17 PM PDT | Areal Flood Advisory | LKN | 97 min |
| Jun 17, 5:15 PM PDT | Severe Thunderstorm Warning | LKN | 30 min |
| Jun 17, 5:44 PM PDT | Severe Thunderstorm Warning | LKN | 31 min |
| Jun 19, 12:51 PM PDT | Mesoscale Discussion | SPC | 84 min |
| Jul 2, 2:47 PM PDT | Mesoscale Discussion | SPC | 58 min |
| Jul 3, 12:09 PM PDT | Severe Thunderstorm Warning | LKN | 25 min |
| Jul 3, 12:28 PM PDT | Tornado Warning | LKN | 32 min |
| Jul 3, 12:58 PM PDT | Severe Thunderstorm Warning | LKN | 25 min |
| Aug 6, 7:01 AM PDT | Severe Thunderstorm Warning | LKN | 29 min |
| Sep 20, 2:43 AM PDT | Freeze Watch | LKN | 36 hr |
| Sep 21, 3:03 AM PDT | Freeze Warning | LKN | 29 hr |
| Oct 4, 2:50 PM PDT | Winter Weather Advisory | LKN | 19 hr |
| Oct 12, 3:14 PM PDT | Wind Advisory | LKN | 32 hr |
| Dec 11, 4:43 AM PST | Winter Storm Watch | LKN | 35 hr |
| Dec 11, 11:34 AM PST | Winter Weather Advisory | LKN | 21 hr |
| Dec 12, 4:06 AM PST | Winter Storm Warning | LKN | 30 hr |
| Dec 15, 2:59 AM PST | Winter Weather Advisory | LKN | 23 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 | 5 |
| Tornado Warning | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 4 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
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.