Alert archive / Colorado / Costilla County
Weather alerts in Costilla County, Colorado, 2016
83 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 83
- Warnings
- 30
- Watches
- 22
- Advisories
- 15
- Busiest month
- October11 alerts
- Busiest day
- June 5, 20166 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, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 0 | 100% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 20 | 6 | 70% | 13 | 69% | 20 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 293 | 92 | 69% | 239 | 83% | 20 min |
| NWS Pueblo, CO: flash flood warnings | 37 | 6 | 84% | 21 | 90% | 40 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 5, 3:25 PM MST | Winter Weather Advisory | PUB | 71 hr |
| Jan 6, 3:39 PM MST | Winter Storm Watch | PUB | 13 hr |
| Jan 7, 4:19 AM MST | Winter Storm Warning | PUB | 42 hr |
| Jan 7, 4:19 AM MST | Winter Weather Advisory | PUB | 42 hr |
| Jan 10, 4:29 AM MST | Dense Fog Advisory | PUB | 5 hr |
| Jan 29, 4:12 AM MST | Winter Storm Warning | PUB | 4 days |
| Jan 30, 4:28 AM MST | Winter Storm Watch | PUB | 33 hr |
| Jan 31, 1:41 PM MST | Winter Weather Advisory | PUB | 39 hr |
| Feb 17, 4:15 AM MST | High Wind Watch | PUB | 11 hr |
| Feb 17, 2:58 PM MST | High Wind Warning | PUB | 37 hr |
| Feb 21, 3:09 PM MST | Winter Storm Watch | PUB | 12 hr |
| Feb 22, 3:23 AM MST | Winter Storm Warning | PUB | 32 hr |
| Feb 22, 3:23 AM MST | Winter Weather Advisory | PUB | 32 hr |
| Mar 13, 3:17 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Mar 14, 3:04 PM MDT | Red Flag Warning | PUB | 29 hr |
| Mar 20, 3:13 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Mar 21, 4:17 AM MDT | Red Flag Warning | PUB | 16 hr |
| Mar 21, 2:51 PM MDT | Red Flag Warning | PUB | 29 hr |
| Mar 24, 3:23 PM MDT | Winter Storm Watch | PUB | 21 hr |
| Mar 25, 12:02 PM MDT | Winter Storm Warning | PUB | 33 hr |
| Apr 4, 2:33 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 10, 3:01 PM MDT | Winter Weather Advisory | PUB | 18 hr |
| Apr 14, 5:03 AM MDT | Winter Storm Watch | PUB | 6 hr |
| Apr 14, 11:27 AM MDT | Winter Storm Watch | PUB | 23 hr |
| Apr 14, 11:27 AM MDT | Winter Storm Warning | PUB | 64 hr |
| Apr 15, 10:28 AM MDT | Winter Weather Advisory | PUB | 41 hr |
| Apr 17, 10:27 AM MDT | Winter Weather Advisory | PUB | 42 hr |
| Apr 26, 9:07 PM MDT | Winter Storm Watch | PUB | 31 hr |
| Apr 28, 4:15 AM MDT | Winter Storm Warning | PUB | 40 hr |
| May 1, 3:50 AM MDT | Winter Weather Advisory | PUB | 17 hr |
| May 15, 2:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| May 15, 9:27 PM MDT | Winter Weather Advisory | PUB | 71 hr |
| May 26, 4:20 AM MDT | Winter Weather Advisory | PUB | 32 hr |
| Jun 5, 1:30 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 5, 2:46 PM MDT | Special Weather Statement | PUB | 44 min |
| Jun 5, 3:24 PM MDT | Special Weather Statement | PUB | 36 min |
| Jun 5, 4:07 PM MDT | Special Weather Statement | PUB | 8 min |
| Jun 5, 4:43 PM MDT | Special Weather Statement | PUB | 47 min |
| Jun 5, 5:12 PM MDT | Special Weather Statement | PUB | 33 min |
| Jun 6, 12:33 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 4:21 PM MDT | Special Weather Statement | PUB | 24 min |
| Jul 3, 1:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 10, 6:57 AM MDT | Fire Weather Watch | PUB | 5 hr |
| Jul 10, 6:57 AM MDT | Red Flag Warning | PUB | 13 hr |
| Jul 10, 12:25 PM MDT | Red Flag Warning | PUB | 32 hr |
| Jul 15, 2:09 PM MDT | Red Flag Warning | PUB | 31 hr |
| Jul 18, 12:40 PM MDT | Special Weather Statement | PUB | 35 min |
| Jul 22, 5:19 PM MDT | Flash Flood Warning | PUB | 116 min |
| Jul 29, 6:28 PM MDT | Special Weather Statement | PUB | 32 min |
| Jul 31, 6:04 PM MDT | Special Weather Statement | PUB | 41 min |
| Aug 3, 3:49 AM MDT | Flash Flood Watch | PUB | 41 hr |
| Aug 4, 3:09 PM MDT | Flash Flood Watch | PUB | 32 hr |
| Aug 5, 3:04 PM MDT | Flash Flood Watch | PUB | 31 hr |
| Aug 16, 4:56 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Aug 20, 4:20 PM MDT | Severe Thunderstorm Warning | PUB | 25 min |
| Aug 20, 4:40 PM MDT | Severe Thunderstorm Warning | PUB | 35 min |
| Aug 20, 5:17 PM MDT | Severe Thunderstorm Warning | PUB | 43 min |
| Aug 20, 5:23 PM MDT | Areal Flood Advisory | PUB | 3 hr |
| Sep 2, 2:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Sep 14, 12:23 PM MDT | Special Weather Statement | PUB | 37 min |
| Sep 22, 2:51 PM MDT | Freeze Watch | PUB | 24 hr |
| Sep 23, 3:03 PM MDT | Freeze Warning | PUB | 18 hr |
| Oct 12, 3:33 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Oct 13, 3:27 PM MDT | Fire Weather Watch | PUB | 23 hr |
| Oct 13, 3:27 PM MDT | Red Flag Warning | PUB | 28 hr |
| Oct 14, 2:53 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Oct 14, 2:53 PM MDT | Red Flag Warning | PUB | 28 hr |
| Oct 15, 3:21 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Oct 15, 3:21 PM MDT | Red Flag Warning | PUB | 30 hr |
| Oct 15, 3:39 PM MDT | High Wind Watch | PUB | 23 hr |
| Oct 16, 2:38 PM MDT | High Wind Warning | PUB | 24 hr |
| Oct 16, 2:51 PM MDT | Red Flag Warning | PUB | 30 hr |
| Oct 22, 3:47 AM MDT | Red Flag Warning | PUB | 14 hr |
| Nov 15, 2:53 PM MST | Red Flag Warning | PUB | 28 hr |
| Dec 10, 3:01 PM MST | High Wind Warning | PUB | 13 hr |
| Dec 14, 9:54 PM MST | High Wind Watch | PUB | 11 hr |
| Dec 15, 4:16 AM MST | Winter Weather Advisory | PUB | 59 hr |
| Dec 15, 8:56 AM MST | High Wind Warning | PUB | 32 hr |
| Dec 21, 3:17 PM MST | Winter Storm Warning | PUB | 41 hr |
| Dec 21, 8:56 PM MST | Winter Weather Advisory | PUB | 35 hr |
| Dec 23, 9:24 PM MST | Winter Weather Advisory | PUB | 50 hr |
| Dec 24, 3:20 PM MST | High Wind Watch | PUB | 13 hr |
| Dec 25, 4:14 AM MST | High Wind Warning | PUB | 19 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 | 3 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 10 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 13 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 4 |
| Fire | |
| Red Flag Warning | 13 |
| Fire Weather Watch | 7 |
| 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 archive20152017
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.