Alert archive / Colorado / Alamosa County
Weather alerts in Alamosa County, Colorado, 2015
84 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 84
- Warnings
- 31
- Watches
- 25
- Advisories
- 18
- Busiest month
- April21 alerts
- Busiest day
- April 4, 20154 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 0 | 100% | 1 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 38 | 10 | 74% | 14 | 71% | 19 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 258 | 63 | 76% | 131 | 70% | 19 min |
| NWS Pueblo, CO: flash flood warnings | 47 | 9 | 81% | 11 | 91% | 33 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, 8:37 PM MST | Dense Fog Advisory | PUB | 12 hr |
| Jan 20, 3:50 PM MST | Winter Weather Advisory | PUB | 35 hr |
| Jan 29, 3:08 PM MST | Winter Weather Advisory | PUB | 61 hr |
| Feb 9, 2:47 PM MST | Winter Storm Watch | PUB | 13 hr |
| Feb 10, 4:14 AM MST | Winter Storm Warning | PUB | 29 hr |
| Feb 10, 4:14 AM MST | Winter Weather Advisory | PUB | 31 hr |
| Feb 15, 4:15 AM MST | Winter Storm Watch | PUB | 9 hr |
| Feb 15, 4:15 AM MST | Winter Weather Advisory | PUB | 43 hr |
| Feb 15, 1:11 PM MST | Winter Storm Warning | PUB | 34 hr |
| Feb 19, 2:53 PM MST | Winter Storm Watch | PUB | 24 hr |
| Feb 20, 3:14 PM MST | Winter Storm Warning | PUB | 3 days |
| Feb 21, 4:18 AM MST | Winter Weather Advisory | PUB | 59 hr |
| Feb 24, 8:19 PM MST | Winter Storm Watch | PUB | 8 hr |
| Feb 25, 4:10 AM MST | Winter Storm Warning | PUB | 49 hr |
| Feb 26, 3:22 PM MST | Winter Storm Warning | PUB | 6 days |
| Feb 26, 3:22 PM MST | Winter Weather Advisory | PUB | 6 days |
| Mar 17, 2:54 PM MDT | Winter Storm Watch | PUB | 13 hr |
| Mar 18, 4:16 AM MDT | Winter Storm Warning | PUB | 47 hr |
| Mar 18, 4:16 AM MDT | Winter Weather Advisory | PUB | 47 hr |
| Mar 23, 3:46 AM MDT | Red Flag Warning | PUB | 15 hr |
| Mar 23, 3:04 PM MDT | Red Flag Warning | PUB | 28 hr |
| Mar 31, 3:14 AM MDT | Fire Weather Watch | PUB | 10 hr |
| Mar 31, 1:00 PM MDT | Red Flag Warning | PUB | 30 hr |
| Apr 1, 3:47 AM MDT | Fire Weather Watch | PUB | 9 hr |
| Apr 1, 12:50 PM MDT | Red Flag Warning | PUB | 31 hr |
| Apr 4, 4:04 AM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 4, 4:04 AM MDT | Fire Weather Watch | PUB | 35 hr |
| Apr 4, 4:04 AM MDT | Red Flag Warning | PUB | 16 hr |
| Apr 4, 3:07 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 5, 2:53 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 5, 2:53 PM MDT | Red Flag Warning | PUB | 30 hr |
| Apr 6, 3:00 PM MDT | Fire Weather Watch | PUB | 13 hr |
| Apr 6, 3:00 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 7, 4:03 AM MDT | Red Flag Warning | PUB | 40 hr |
| Apr 13, 12:01 PM MDT | Fire Weather Watch | PUB | 3 hr |
| Apr 13, 3:00 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Apr 13, 3:00 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 14, 3:25 PM MDT | Red Flag Warning | PUB | 29 hr |
| Apr 15, 3:52 AM MDT | Winter Storm Watch | PUB | 25 hr |
| Apr 16, 3:54 AM MDT | Red Flag Warning | PUB | 12 hr |
| Apr 16, 4:26 AM MDT | Winter Storm Warning | PUB | 48 hr |
| Apr 16, 4:26 AM MDT | Winter Weather Advisory | PUB | 68 hr |
| Apr 25, 3:56 AM MDT | Winter Storm Watch | PUB | 24 hr |
| Apr 26, 4:22 AM MDT | Winter Storm Warning | PUB | 34 hr |
| May 9, 5:22 AM MDT | Winter Weather Advisory | PUB | 25 hr |
| May 10, 10:09 AM MDT | Winter Weather Advisory | PUB | 18 hr |
| May 17, 3:15 PM MDT | Winter Storm Watch | PUB | 13 hr |
| May 18, 4:17 AM MDT | Winter Storm Warning | PUB | 32 hr |
| Jun 6, 11:34 PM MDT | Flood Watch | PUB | 4 days |
| Jun 10, 11:50 AM MDT | Flash Flood Watch | PUB | 7 days |
| Jun 27, 4:13 PM MDT | Special Weather Statement | PUB | 47 min |
| Jun 27, 6:34 PM MDT | Special Weather Statement | PUB | 26 min |
| Jun 28, 3:03 PM MDT | Severe Thunderstorm Warning | PUB | 42 min |
| Jul 1, 4:30 PM MDT | Special Weather Statement | PUB | 60 min |
| Jul 1, 5:14 PM MDT | Special Weather Statement | PUB | 61 min |
| Jul 2, 4:38 PM MDT | Special Weather Statement | PUB | 52 min |
| Jul 2, 5:46 PM MDT | Special Weather Statement | PUB | 44 min |
| Jul 3, 12:59 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 6, 7:13 PM MDT | Special Weather Statement | PUB | 47 min |
| Aug 2, 4:06 AM MDT | Flash Flood Watch | PUB | 19 hr |
| Aug 3, 3:32 PM MDT | Special Weather Statement | PUB | 43 min |
| Sep 29, 2:14 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Oct 12, 3:58 AM MDT | Frost Advisory | PUB | 29 hr |
| Oct 13, 3:55 AM MDT | Freeze Watch | PUB | 11 hr |
| Oct 13, 2:48 PM MDT | Freeze Warning | PUB | 18 hr |
| Oct 14, 4:01 AM MDT | Freeze Warning | PUB | 29 hr |
| Oct 15, 3:42 AM MDT | Frost Advisory | PUB | 29 hr |
| Oct 20, 2:49 PM MDT | Winter Weather Advisory | PUB | 51 hr |
| Oct 22, 4:01 AM MDT | Freeze Watch | PUB | 8 hr |
| Oct 22, 11:51 AM MDT | Freeze Warning | PUB | 20 hr |
| Oct 23, 1:52 PM MDT | Freeze Warning | PUB | 19 hr |
| Oct 24, 3:55 AM MDT | Freeze Watch | PUB | 6 hr |
| Oct 24, 10:22 AM MDT | Freeze Warning | PUB | 23 hr |
| Nov 15, 5:00 AM MST | Winter Storm Watch | PUB | 24 hr |
| Nov 15, 5:00 AM MST | Winter Storm Warning | PUB | 54 hr |
| Nov 15, 2:59 PM MST | Winter Weather Advisory | PUB | 50 hr |
| Nov 25, 11:04 AM MST | Winter Weather Advisory | PUB | 70 hr |
| Nov 26, 1:34 PM MST | Winter Storm Warning | PUB | 18 hr |
| Dec 10, 3:18 PM MST | Winter Storm Watch | PUB | 13 hr |
| Dec 11, 4:16 AM MST | Winter Weather Advisory | PUB | 61 hr |
| Dec 12, 5:08 AM MST | Winter Storm Warning | PUB | 37 hr |
| Dec 19, 4:25 AM MST | High Wind Watch | PUB | 24 hr |
| Dec 19, 8:17 PM MST | High Wind Warning | PUB | 8 hr |
| Dec 23, 3:26 PM MST | Winter Weather Advisory | PUB | 55 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 |
| Special Weather Statement | 8 |
| Flooding | |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 12 |
| Winter Storm Watch | 10 |
| Winter Weather Advisory | 15 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 3 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Fire | |
| Red Flag Warning | 12 |
| Fire Weather Watch | 8 |
| 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 archive20142016
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.