Alert archive / Colorado / Alamosa County
Weather alerts in Alamosa County, Colorado, 2012
71 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alamosa County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 71
- Warnings
- 33
- Watches
- 21
- Advisories
- 15
- Busiest month
- April13 alerts
- Busiest day
- March 30, 20123 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Alamosa County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 0 | 100% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 24 | 5 | 79% | 9 | 56% | 14 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 121 | 45 | 63% | 127 | 80% | 19 min |
| NWS Pueblo, CO: flash flood warnings | 16 | 2 | 88% | 9 | 67% | 39 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 17, 4:08 AM MST | High Wind Watch | PUB | 11 hr |
| Jan 17, 2:46 PM MST | High Wind Warning | PUB | 43 hr |
| Jan 20, 3:50 PM MST | High Wind Warning | PUB | 31 hr |
| Feb 1, 3:21 PM MST | Winter Storm Warning | PUB | 62 hr |
| Feb 1, 3:21 PM MST | Winter Weather Advisory | PUB | 48 hr |
| Feb 21, 10:57 PM MST | High Wind Warning | PUB | 30 hr |
| Feb 29, 3:16 PM MST | Winter Storm Warning | PUB | 54 hr |
| Feb 29, 3:16 PM MST | Winter Weather Advisory | PUB | 54 hr |
| Mar 1, 3:40 AM MST | Winter Storm Watch | PUB | 11 hr |
| Mar 6, 3:58 PM MST | Winter Storm Watch | PUB | 28 hr |
| Mar 7, 4:36 AM MST | Winter Storm Warning | PUB | 29 hr |
| Mar 17, 3:08 PM MDT | Winter Weather Advisory | PUB | 43 hr |
| Mar 18, 4:02 AM MDT | High Wind Warning | PUB | 15 hr |
| Mar 26, 3:29 PM MDT | High Wind Warning | PUB | 5 hr |
| Mar 30, 4:21 AM MDT | Fire Weather Watch | PUB | 10 hr |
| Mar 30, 4:21 AM MDT | Fire Weather Watch | PUB | 34 hr |
| Mar 30, 2:43 PM MDT | Red Flag Warning | PUB | 28 hr |
| Mar 31, 2:35 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 1, 3:46 AM MDT | Winter Storm Watch | PUB | 25 hr |
| Apr 1, 2:52 PM MDT | High Wind Warning | PUB | 30 hr |
| Apr 2, 4:20 AM MDT | Winter Storm Warning | PUB | 43 hr |
| Apr 4, 2:39 PM MDT | Fire Weather Watch | PUB | 13 hr |
| Apr 5, 3:48 AM MDT | Red Flag Warning | PUB | 40 hr |
| Apr 9, 2:44 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 10, 2:49 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 10, 2:49 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 11, 1:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Apr 11, 2:47 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 11, 2:47 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 12, 2:32 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 12, 3:00 PM MDT | Winter Storm Watch | PUB | 30 hr |
| May 6, 3:23 AM MDT | Winter Weather Advisory | PUB | 48 hr |
| May 11, 3:30 PM MDT | Winter Weather Advisory | PUB | 37 hr |
| May 25, 4:26 AM MDT | High Wind Watch | PUB | 24 hr |
| May 26, 4:34 AM MDT | High Wind Warning | PUB | 15 hr |
| May 27, 4:08 AM MDT | Freeze Warning | PUB | 27 hr |
| May 27, 3:45 PM MDT | Freeze Watch | PUB | 23 hr |
| May 28, 3:09 PM MDT | Freeze Warning | PUB | 13 hr |
| Jun 3, 1:03 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 3:28 PM MDT | Fire Weather Watch | PUB | 23 hr |
| Jun 8, 2:17 PM MDT | Red Flag Warning | PUB | 31 hr |
| Jun 10, 3:35 AM MDT | Red Flag Warning | PUB | 16 hr |
| Jun 16, 4:36 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Jun 16, 3:18 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 17, 3:45 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Jun 17, 2:53 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 18, 3:49 AM MDT | Fire Weather Watch | PUB | 24 hr |
| Jun 18, 3:25 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 21, 3:41 AM MDT | Fire Weather Watch | PUB | 11 hr |
| Jun 21, 2:45 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 26, 3:26 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jul 10, 6:43 PM MDT | Severe Thunderstorm Warning | PUB | 31 min |
| Sep 11, 2:47 PM MDT | Winter Storm Watch | PUB | 12 hr |
| Sep 12, 2:17 AM MDT | Winter Weather Advisory | PUB | 15 hr |
| Sep 13, 4:17 AM MDT | Frost Advisory | PUB | 28 hr |
| Sep 14, 12:25 PM MDT | Frost Advisory | PUB | 20 hr |
| Sep 15, 2:47 PM MDT | Frost Advisory | PUB | 17 hr |
| Oct 3, 4:11 AM MDT | Red Flag Warning | PUB | 14 hr |
| Oct 5, 2:46 PM MDT | Hard Freeze Warning | PUB | 42 hr |
| Oct 16, 2:52 PM MDT | Red Flag Warning | PUB | 28 hr |
| Oct 23, 2:57 PM MDT | High Wind Warning | PUB | 28 hr |
| Dec 7, 2:58 PM MST | Winter Weather Advisory | PUB | 52 hr |
| Dec 9, 7:03 PM MST | Wind Chill Advisory | PUB | 13 hr |
| Dec 13, 3:25 AM MST | Winter Weather Advisory | PUB | 44 hr |
| Dec 14, 4:27 AM MST | High Wind Watch | PUB | 5 hr |
| Dec 14, 4:45 AM MST | Blizzard Warning | PUB | 19 hr |
| Dec 14, 9:22 AM MST | High Wind Warning | PUB | 15 hr |
| Dec 17, 4:28 AM MST | Winter Storm Watch | PUB | 35 hr |
| Dec 17, 8:52 PM MST | Winter Weather Advisory | PUB | 47 hr |
| Dec 23, 3:51 AM MST | Winter Weather Advisory | PUB | 52 hr |
| Dec 29, 2:57 PM MST | Winter Weather Advisory | PUB | 56 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 |
| Mesoscale Discussion | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 9 |
| High Wind Watch | 3 |
| Fire | |
| Red Flag Warning | 15 |
| Fire Weather Watch | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.