Alert archive / New Mexico / Sierra County
Weather alerts in Sierra County, New Mexico, 2020
100 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sierra County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 100
- Warnings
- 31
- Watches
- 11
- Advisories
- 29
- Busiest month
- June29 alerts
- Busiest day
- July 27, 20206 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sierra County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 4 | 64% | 2 | 50% | 34 min |
| Flash flood warnings | 1 | 1 | 0% | 2 | 100% | 4 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS El Paso, TX: tornado warnings | 0 | 2 | 0% | |||
| NWS El Paso, TX: severe thunderstorm warnings | 46 | 6 | 87% | 30 | 30% | 34 min |
| NWS El Paso, TX: flash flood warnings | 8 | 1 | 88% | 2 | 100% | 4 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 1, 2:43 PM MST | High Wind Watch | EPZ | 23 hr |
| Feb 2, 1:17 PM MST | High Wind Warning | EPZ | 34 hr |
| Feb 2, 1:17 PM MST | Wind Advisory | EPZ | 31 hr |
| Feb 10, 6:00 AM MST | Winter Weather Advisory | EPZ | 51 hr |
| Feb 10, 8:38 PM MST | Special Weather Statement | EPZ | 37 min |
| Feb 10, 8:44 PM MST | Special Weather Statement | EPZ | 31 min |
| Feb 10, 10:27 PM MST | Special Weather Statement | EPZ | 48 min |
| Feb 25, 1:55 AM MST | Red Flag Warning | EPZ | 16 hr |
| Mar 13, 11:57 AM MDT | Special Weather Statement | EPZ | 48 min |
| Mar 18, 10:43 PM MDT | Severe Thunderstorm Warning | EPZ | 62 min |
| Mar 18, 11:37 PM MDT | Severe Thunderstorm Warning | EPZ | 53 min |
| Mar 22, 5:39 AM MDT | Wind Advisory | EPZ | 40 hr |
| Mar 22, 5:40 AM MDT | Fire Weather Watch | EPZ | 9 hr |
| Mar 22, 3:02 PM MDT | Red Flag Warning | EPZ | 29 hr |
| Mar 26, 2:55 PM MDT | Wind Advisory | EPZ | 33 hr |
| Apr 2, 12:31 AM MDT | Red Flag Warning | EPZ | 17 hr |
| Apr 18, 3:34 AM MDT | Red Flag Warning | EPZ | 16 hr |
| Apr 21, 4:19 AM MDT | Red Flag Warning | EPZ | 17 hr |
| Apr 22, 2:56 AM MDT | Fire Weather Watch | EPZ | 24 hr |
| Apr 23, 2:29 AM MDT | Red Flag Warning | EPZ | 18 hr |
| Apr 30, 3:00 PM MDT | Red Flag Warning | EPZ | 30 hr |
| May 5, 5:40 AM MDT | Fire Weather Watch | EPZ | 33 hr |
| May 6, 2:51 PM MDT | Red Flag Warning | EPZ | 31 hr |
| May 11, 1:37 PM MDT | Special Weather Statement | EPZ | 38 min |
| May 11, 1:59 PM MDT | Severe Thunderstorm Warning | EPZ | 46 min |
| May 11, 2:36 PM MDT | Special Weather Statement | EPZ | 54 min |
| May 18, 3:28 AM MDT | Fire Weather Watch | EPZ | 24 hr |
| May 19, 3:24 AM MDT | Red Flag Warning | EPZ | 17 hr |
| Jun 3, 6:58 PM MDT | Special Weather Statement | EPZ | 47 min |
| Jun 4, 2:43 AM MDT | Heat Advisory | EPZ | 53 hr |
| Jun 5, 12:33 PM MDT | Red Flag Warning | EPZ | 30 hr |
| Jun 5, 8:24 PM MDT | Special Weather Statement | EPZ | 81 min |
| Jun 5, 10:44 PM MDT | Special Weather Statement | EPZ | 46 min |
| Jun 6, 9:45 PM MDT | Fire Weather Watch | EPZ | 5 hr |
| Jun 6, 9:45 PM MDT | Red Flag Warning | EPZ | 22 hr |
| Jun 7, 2:53 AM MDT | Red Flag Warning | EPZ | 41 hr |
| Jun 11, 4:04 PM MDT | Special Weather Statement | EPZ | 26 min |
| Jun 12, 3:30 PM MDT | Special Weather Statement | EPZ | 30 min |
| Jun 12, 4:12 PM MDT | Areal Flood Advisory | EPZ | 2 hr |
| Jun 14, 6:13 PM MDT | Special Weather Statement | EPZ | 47 min |
| Jun 15, 4:19 PM MDT | Special Weather Statement | EPZ | 41 min |
| Jun 23, 4:46 PM MDT | Special Weather Statement | EPZ | 44 min |
| Jun 23, 4:59 PM MDT | Severe Thunderstorm Warning | EPZ | 46 min |
| Jun 23, 5:46 PM MDT | Severe Thunderstorm Warning | EPZ | 59 min |
| Jun 23, 5:59 PM MDT | Special Weather Statement | EPZ | 46 min |
| Jun 24, 2:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 3:05 PM MDT | Special Weather Statement | EPZ | 40 min |
| Jun 24, 3:21 PM MDT | Severe Thunderstorm Warning | EPZ | 39 min |
| Jun 24, 3:59 PM MDT | Special Weather Statement | EPZ | 46 min |
| Jun 24, 4:11 PM MDT | Severe Thunderstorm Warning | EPZ | 49 min |
| Jun 26, 5:44 PM MDT | Dust Storm Advisory | EPZ | 91 min |
| Jun 27, 1:35 PM MDT | Red Flag Warning | EPZ | 30 hr |
| Jun 27, 4:58 PM MDT | Dust Storm Warning | EPZ | 62 min |
| Jun 28, 2:37 AM MDT | Fire Weather Watch | EPZ | 11 hr |
| Jun 28, 1:40 PM MDT | Red Flag Warning | EPZ | 30 hr |
| Jun 29, 2:35 AM MDT | Fire Weather Watch | EPZ | 27 hr |
| Jun 30, 5:29 AM MDT | Red Flag Warning | EPZ | 9 hr |
| Jul 7, 12:49 PM MDT | Heat Advisory | EPZ | 64 hr |
| Jul 10, 5:09 AM MDT | Heat Advisory | EPZ | 5 days |
| Jul 13, 5:26 PM MDT | Special Weather Statement | EPZ | 49 min |
| Jul 14, 1:47 PM MDT | Special Weather Statement | EPZ | 43 min |
| Jul 19, 4:34 PM MDT | Special Weather Statement | EPZ | 41 min |
| Jul 19, 5:11 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 21, 2:34 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 23, 8:00 PM MDT | Special Weather Statement | EPZ | 30 min |
| Jul 23, 8:39 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 24, 10:56 AM MDT | Flash Flood Watch | EPZ | 39 hr |
| Jul 24, 8:28 PM MDT | Special Weather Statement | EPZ | 47 min |
| Jul 26, 3:52 AM MDT | Flash Flood Watch | EPZ | 20 hr |
| Jul 26, 5:08 PM MDT | Special Weather Statement | EPZ | 37 min |
| Jul 26, 5:13 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 26, 5:48 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 26, 5:59 PM MDT | Special Weather Statement | EPZ | 61 min |
| Jul 26, 6:05 PM MDT | Flash Flood Warning | EPZ | 5 hr |
| Jul 26, 6:40 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 26, 6:50 PM MDT | Special Weather Statement | EPZ | 40 min |
| Jul 26, 6:53 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 26, 7:25 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 26, 9:07 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Jul 31, 8:44 PM MDT | Severe Thunderstorm Warning | EPZ | 46 min |
| Aug 1, 2:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 7:52 PM MDT | Severe Thunderstorm Warning | EPZ | 38 min |
| Aug 2, 2:43 PM MDT | Areal Flood Advisory | EPZ | 4 hr |
| Aug 2, 3:38 PM MDT | Areal Flood Advisory | EPZ | 5 hr |
| Aug 3, 4:21 PM MDT | Areal Flood Advisory | EPZ | 4 hr |
| Aug 6, 2:04 PM MDT | Areal Flood Advisory | EPZ | 116 min |
| Aug 6, 2:40 PM MDT | Special Weather Statement | EPZ | 50 min |
| Aug 15, 4:36 PM MDT | Special Weather Statement | EPZ | 39 min |
| Aug 16, 8:34 PM MDT | Severe Thunderstorm Warning | EPZ | 41 min |
| Aug 16, 8:36 PM MDT | Severe Thunderstorm Warning | EPZ | 39 min |
| Sep 8, 3:08 PM MDT | Areal Flood Advisory | EPZ | 112 min |
| Sep 8, 11:16 PM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Sep 9, 2:48 AM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Sep 9, 3:12 AM MDT | Areal Flood Advisory | EPZ | 3 hr |
| Oct 25, 5:32 AM MDT | Red Flag Warning | EPZ | 14 hr |
| Oct 25, 2:29 PM MDT | Winter Storm Watch | EPZ | 15 hr |
| Oct 26, 5:36 AM MDT | Winter Weather Advisory | EPZ | 48 hr |
| Oct 26, 3:33 PM MDT | Winter Storm Warning | EPZ | 38 hr |
| Nov 7, 6:22 AM MST | Wind Advisory | EPZ | 23 hr |
| Nov 8, 5:02 AM MST | Wind Advisory | EPZ | 36 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 | 11 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 27 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 18 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 3 |
| Wind and dust | |
| Dust Storm Warning | 1 |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Dust Storm Advisory | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.