Alert archive / Colorado / Costilla County
Weather alerts in Costilla County, Colorado, 2023
149 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Costilla County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 149
- Warnings
- 60
- Watches
- 41
- Advisories
- 31
- Busiest month
- February23 alerts
- Busiest day
- February 22, 20235 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Costilla County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 0 | ||||
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 92 | 16 | 83% | 25 | 72% | 13 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 574 | 118 | 79% | 313 | 82% | 20 min |
| NWS Pueblo, CO: flash flood warnings | 65 | 19 | 71% | 28 | 96% | 42 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 |
|---|---|---|---|
| Jan 10, 1:12 AM MST | High Wind Warning | PUB | 11 hr |
| Jan 16, 3:47 AM MST | Winter Weather Advisory | PUB | 61 hr |
| Jan 19, 4:03 AM MST | Winter Storm Watch | PUB | 9 hr |
| Jan 19, 12:57 PM MST | Winter Storm Warning | PUB | 50 hr |
| Jan 19, 12:57 PM MST | Winter Weather Advisory | PUB | 48 hr |
| Feb 9, 12:49 AM MST | Winter Weather Advisory | PUB | 9 hr |
| Feb 12, 3:46 AM MST | Winter Weather Advisory | PUB | 46 hr |
| Feb 12, 2:49 PM MST | Winter Storm Watch | PUB | 37 hr |
| Feb 14, 3:51 AM MST | Winter Storm Warning | PUB | 43 hr |
| Feb 14, 3:51 AM MST | Winter Weather Advisory | PUB | 37 hr |
| Feb 17, 3:21 PM MST | High Wind Watch | PUB | 12 hr |
| Feb 18, 3:47 AM MST | High Wind Watch | PUB | 24 hr |
| Feb 19, 3:46 AM MST | High Wind Warning | PUB | 34 hr |
| Feb 20, 3:00 PM MST | High Wind Watch | PUB | 14 hr |
| Feb 20, 3:09 PM MST | Winter Weather Advisory | PUB | 62 hr |
| Feb 21, 4:31 AM MST | High Wind Warning | PUB | 13 hr |
| Feb 21, 4:31 AM MST | High Wind Warning | PUB | 38 hr |
| Feb 22, 8:26 AM MST | Mesoscale Discussion | SPC | 4 hr |
| Feb 22, 10:54 AM MST | Snow Squall Warning | PUB | 51 min |
| Feb 22, 12:17 PM MST | Snow Squall Warning | PUB | 43 min |
| Feb 22, 1:00 PM MST | Snow Squall Warning | PUB | 45 min |
| Feb 22, 1:48 PM MST | Snow Squall Warning | PUB | 27 min |
| Feb 24, 4:07 AM MST | High Wind Watch | PUB | 35 hr |
| Feb 25, 2:51 PM MST | High Wind Warning | PUB | 33 hr |
| Feb 27, 8:54 PM MST | High Wind Warning | PUB | 18 hr |
| Feb 28, 3:49 AM MST | Winter Storm Warning | PUB | 59 hr |
| Feb 28, 2:48 PM MST | Winter Storm Watch | PUB | 13 hr |
| Feb 28, 2:48 PM MST | Winter Weather Advisory | PUB | 48 hr |
| Mar 3, 2:55 PM MST | High Wind Watch | PUB | 24 hr |
| Mar 4, 3:05 PM MST | High Wind Warning | PUB | 35 hr |
| Mar 7, 4:05 AM MST | Fire Weather Watch | PUB | 11 hr |
| Mar 7, 4:05 AM MST | Red Flag Warning | PUB | 14 hr |
| Mar 7, 2:52 PM MST | Red Flag Warning | PUB | 27 hr |
| Mar 9, 2:50 PM MST | Winter Weather Advisory | PUB | 62 hr |
| Mar 14, 3:49 AM MDT | Winter Storm Watch | PUB | 24 hr |
| Mar 14, 3:49 AM MDT | Winter Storm Warning | PUB | 71 hr |
| Mar 14, 3:49 AM MDT | Winter Weather Advisory | PUB | 71 hr |
| Mar 19, 2:52 PM MDT | Winter Storm Warning | PUB | 3 days |
| Mar 19, 2:52 PM MDT | Winter Weather Advisory | PUB | 3 days |
| Mar 20, 2:57 PM MDT | High Wind Watch | PUB | 24 hr |
| Mar 21, 2:50 PM MDT | High Wind Warning | PUB | 29 hr |
| Mar 28, 2:48 PM MDT | High Wind Watch | PUB | 24 hr |
| Mar 29, 3:05 PM MDT | High Wind Warning | PUB | 28 hr |
| Mar 30, 1:28 PM MDT | Blowing Dust Advisory | PUB | 6 hr |
| Mar 30, 2:49 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Mar 31, 2:36 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 1, 3:05 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 1, 3:05 PM MDT | Red Flag Warning | PUB | 30 hr |
| Apr 2, 4:33 AM MDT | High Wind Watch | PUB | 48 hr |
| Apr 2, 3:07 PM MDT | Red Flag Warning | PUB | 30 hr |
| Apr 2, 3:08 PM MDT | High Wind Warning | PUB | 51 hr |
| Apr 3, 2:34 PM MDT | Blowing Dust Advisory | PUB | 4 hr |
| Apr 11, 2:50 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 11, 2:50 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 12, 2:47 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 14, 2:18 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 16, 3:44 AM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 16, 2:27 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 17, 3:56 AM MDT | Red Flag Warning | PUB | 48 hr |
| Apr 18, 3:49 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Apr 18, 2:55 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 18, 2:55 PM MDT | Red Flag Warning | PUB | 30 hr |
| Apr 19, 3:04 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 20, 3:55 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Apr 20, 2:49 PM MDT | Red Flag Warning | PUB | 28 hr |
| Apr 20, 2:57 PM MDT | Winter Weather Advisory | PUB | 57 hr |
| Apr 23, 2:40 PM MDT | Winter Storm Watch | PUB | 23 hr |
| Apr 24, 1:35 PM MDT | Winter Storm Warning | PUB | 49 hr |
| Apr 27, 4:11 AM MDT | Winter Weather Advisory | PUB | 32 hr |
| May 3, 2:49 PM MDT | Fire Weather Watch | PUB | 13 hr |
| May 4, 3:47 AM MDT | Fire Weather Watch | PUB | 36 hr |
| May 4, 3:47 AM MDT | Red Flag Warning | PUB | 41 hr |
| May 5, 3:17 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 5, 3:17 PM MDT | Red Flag Warning | PUB | 30 hr |
| May 6, 3:40 PM MDT | Red Flag Warning | PUB | 28 hr |
| May 7, 3:57 AM MDT | Fire Weather Watch | PUB | 11 hr |
| May 7, 2:45 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 7, 2:45 PM MDT | Red Flag Warning | PUB | 28 hr |
| May 8, 2:52 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 8, 2:52 PM MDT | Red Flag Warning | PUB | 28 hr |
| May 9, 2:46 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 10, 1:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 1:24 PM MDT | Special Weather Statement | PUB | 36 min |
| May 23, 5:48 PM MDT | Special Weather Statement | PUB | 27 min |
| May 23, 5:52 PM MDT | Special Weather Statement | PUB | 23 min |
| May 23, 6:20 PM MDT | Special Weather Statement | PUB | 25 min |
| May 26, 1:21 PM MDT | Special Weather Statement | PUB | 24 min |
| Jun 2, 12:41 PM MDT | Special Weather Statement | PUB | 34 min |
| Jun 6, 12:25 PM MDT | Special Weather Statement | PUB | 35 min |
| Jun 6, 1:57 PM MDT | Special Weather Statement | PUB | 33 min |
| Jun 7, 9:00 AM MDT | Flash Flood Watch | PUB | 9 hr |
| Jun 17, 12:33 PM MDT | Special Weather Statement | PUB | 42 min |
| Jul 16, 2:55 PM MDT | Heat Advisory | PUB | 30 hr |
| Jul 17, 2:47 PM MDT | Heat Advisory | PUB | 30 hr |
| Jul 19, 4:30 PM MDT | Special Weather Statement | PUB | 45 min |
| Jul 20, 4:07 PM MDT | Special Weather Statement | PUB | 23 min |
| Jul 22, 4:04 AM MDT | Special Weather Statement | PUB | 41 min |
| Jul 23, 2:46 PM MDT | Heat Advisory | PUB | 29 hr |
| Jul 24, 2:55 PM MDT | Heat Advisory | PUB | 29 hr |
| Jul 25, 3:11 PM MDT | Heat Advisory | PUB | 29 hr |
| Aug 3, 3:12 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Aug 4, 3:12 PM MDT | Fire Weather Watch | PUB | 23 hr |
| Aug 4, 3:12 PM MDT | Red Flag Warning | PUB | 29 hr |
| Aug 5, 2:09 PM MDT | Red Flag Warning | PUB | 30 hr |
| Aug 6, 3:43 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Aug 6, 2:42 PM MDT | Red Flag Warning | PUB | 29 hr |
| Aug 7, 4:01 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Aug 7, 2:38 PM MDT | Red Flag Warning | PUB | 29 hr |
| Aug 8, 3:40 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Aug 8, 2:40 PM MDT | Red Flag Warning | PUB | 29 hr |
| Aug 12, 11:22 AM MDT | Special Weather Statement | PUB | 38 min |
| Aug 15, 3:36 PM MDT | Special Weather Statement | PUB | 39 min |
| Aug 18, 1:41 PM MDT | Fire Weather Watch | PUB | 22 hr |
| Aug 18, 1:46 PM MDT | Heat Advisory | PUB | 29 hr |
| Aug 19, 11:38 AM MDT | Red Flag Warning | PUB | 31 hr |
| Aug 20, 3:50 AM MDT | Heat Advisory | PUB | 15 hr |
| Aug 25, 2:26 AM MDT | Flood Watch | PUB | 17 hr |
| Aug 25, 6:03 PM MDT | Flash Flood Warning | PUB | 3 hr |
| Aug 27, 2:54 PM MDT | Flash Flood Warning | PUB | 3 hr |
| Sep 20, 3:06 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Sep 21, 2:52 PM MDT | Red Flag Warning | PUB | 28 hr |
| Sep 24, 2:45 PM MDT | Freeze Warning | PUB | 17 hr |
| Sep 26, 2:29 PM MDT | Frost Advisory | PUB | 17 hr |
| Oct 2, 11:37 AM MDT | Special Weather Statement | PUB | 38 min |
| Oct 3, 3:43 AM MDT | Freeze Watch | PUB | 15 hr |
| Oct 3, 6:30 PM MDT | Freeze Watch | PUB | 9 hr |
| Oct 3, 6:30 PM MDT | Freeze Warning | PUB | 12 hr |
| Oct 4, 3:46 AM MDT | Freeze Warning | PUB | 28 hr |
| Oct 5, 3:24 AM MDT | Freeze Warning | PUB | 29 hr |
| Oct 6, 3:51 AM MDT | Frost Advisory | PUB | 28 hr |
| Oct 11, 9:52 PM MDT | High Wind Warning | PUB | 14 hr |
| Oct 12, 5:46 PM MDT | Freeze Warning | PUB | 15 hr |
| Oct 27, 2:56 PM MDT | Winter Weather Advisory | PUB | 51 hr |
| Nov 7, 2:38 PM MST | Winter Weather Advisory | PUB | 41 hr |
| Nov 18, 2:52 PM MST | Winter Weather Advisory | PUB | 54 hr |
| Nov 22, 2:45 PM MST | Winter Weather Advisory | PUB | 68 hr |
| Dec 2, 11:25 AM MST | High Wind Watch | PUB | 7 hr |
| Dec 2, 11:25 AM MST | High Wind Warning | PUB | 27 hr |
| Dec 7, 10:53 AM MST | High Wind Warning | PUB | 7 hr |
| Dec 7, 2:48 PM MST | Winter Weather Advisory | PUB | 40 hr |
| Dec 8, 11:11 AM MST | Snow Squall Warning | PUB | 34 min |
| Dec 8, 3:46 PM MST | Snow Squall Warning | PUB | 44 min |
| Dec 9, 5:00 AM MST | Winter Weather Advisory | PUB | 108 min |
| Dec 12, 4:09 AM MST | Winter Storm Watch | PUB | 10 hr |
| Dec 12, 2:30 PM MST | Winter Storm Warning | PUB | 48 hr |
| Dec 12, 2:30 PM MST | Winter Weather Advisory | PUB | 48 hr |
| Dec 21, 2:48 PM MST | Winter Storm Watch | PUB | 13 hr |
| Dec 21, 11:39 PM MST | Dense Fog Advisory | PUB | 10 hr |
| Dec 22, 3:45 AM MST | Winter Storm Warning | PUB | 61 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 |
| Special Weather Statement | 15 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Winter | |
| Snow Squall Warning | 6 |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 19 |
| Heat | |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 13 |
| High Wind Watch | 9 |
| Blowing Dust Advisory | 2 |
| Fire | |
| Red Flag Warning | 26 |
| Fire Weather Watch | 21 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.