Alert archive / Colorado / Alamosa County
Weather alerts in Alamosa County, Colorado, 2017
74 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 74
- Warnings
- 23
- Watches
- 23
- Advisories
- 13
- Busiest month
- January14 alerts
- Busiest day
- January 3, 20173 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, 2017
| 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, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 12 | 1 | 92% | 3 | 33% | 0 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 245 | 62 | 75% | 123 | 85% | 21 min |
| NWS Pueblo, CO: flash flood warnings | 51 | 14 | 73% | 24 | 71% | 52 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 1, 9:17 PM MST | Dense Fog Advisory | PUB | 12 hr |
| Jan 3, 3:10 PM MST | Winter Storm Watch | PUB | 19 hr |
| Jan 3, 3:10 PM MST | Winter Storm Warning | PUB | 64 hr |
| Jan 3, 3:10 PM MST | Winter Weather Advisory | PUB | 64 hr |
| Jan 7, 4:08 AM MST | Wind Chill Warning | PUB | 5 hr |
| Jan 7, 3:08 PM MST | High Wind Watch | PUB | 313 days |
| Jan 8, 12:45 PM MST | High Wind Warning | PUB | 31 hr |
| Jan 10, 4:27 AM MST | High Wind Watch | PUB | 10 hr |
| Jan 10, 2:39 PM MST | High Wind Warning | PUB | 21 hr |
| Jan 13, 3:19 PM MST | Winter Storm Watch | PUB | 14 hr |
| Jan 14, 4:58 AM MST | Winter Storm Warning | PUB | 54 hr |
| Jan 14, 1:07 PM MST | Winter Weather Advisory | PUB | 58 hr |
| Jan 19, 4:02 AM MST | Winter Weather Advisory | PUB | 64 hr |
| Jan 22, 3:50 AM MST | Winter Weather Advisory | PUB | 61 hr |
| Feb 6, 9:37 PM MST | High Wind Watch | PUB | 17 hr |
| Feb 7, 2:19 PM MST | High Wind Warning | PUB | 24 hr |
| Feb 10, 4:17 AM MST | Winter Storm Watch | PUB | 25 hr |
| Feb 10, 2:42 PM MST | Winter Weather Advisory | PUB | 45 hr |
| Feb 10, 2:47 PM MST | High Wind Warning | PUB | 13 hr |
| Feb 20, 3:08 PM MST | Fire Weather Watch | PUB | 234 days |
| Mar 5, 7:47 AM MST | High Wind Watch | PUB | 7 hr |
| Mar 5, 2:58 PM MST | High Wind Warning | PUB | 27 hr |
| Mar 22, 3:30 PM MDT | Winter Storm Watch | PUB | 24 hr |
| Mar 23, 4:07 AM MDT | Winter Weather Advisory | PUB | 32 hr |
| Mar 27, 12:11 PM MDT | Winter Storm Watch | PUB | 17 hr |
| Mar 28, 5:38 AM MDT | Winter Storm Warning | PUB | 30 hr |
| Mar 30, 11:01 AM MDT | Winter Storm Watch | PUB | 23 hr |
| Mar 31, 4:29 AM MDT | Winter Storm Warning | PUB | 35 hr |
| Apr 2, 3:55 AM MDT | Winter Storm Watch | PUB | 24 hr |
| Apr 3, 4:23 AM MDT | Winter Storm Warning | PUB | 35 hr |
| Apr 3, 4:23 AM MDT | Winter Weather Advisory | PUB | 44 hr |
| Apr 13, 1:43 PM MDT | Fire Weather Watch | PUB | 14 hr |
| Apr 14, 3:59 AM MDT | Red Flag Warning | PUB | 16 hr |
| Apr 23, 9:02 AM MDT | Red Flag Warning | PUB | 34 hr |
| Apr 24, 2:53 PM MDT | Winter Storm Watch | PUB | 13 hr |
| Apr 25, 4:03 AM MDT | Winter Weather Advisory | PUB | 24 hr |
| Apr 27, 4:33 AM MDT | Winter Storm Watch | PUB | 24 hr |
| Apr 28, 4:34 AM MDT | Winter Storm Warning | PUB | 56 hr |
| May 9, 5:08 AM MDT | Flash Flood Watch | PUB | 17 hr |
| May 10, 4:30 AM MDT | Winter Storm Warning | PUB | 32 hr |
| May 18, 5:23 AM MDT | Winter Storm Watch | PUB | 10 hr |
| Jun 4, 7:57 PM MDT | Special Weather Statement | PUB | 18 min |
| Jun 4, 8:28 PM MDT | Special Weather Statement | PUB | 17 min |
| Jun 4, 8:39 PM MDT | Special Weather Statement | PUB | 21 min |
| Jun 8, 5:32 PM MDT | Special Weather Statement | PUB | 28 min |
| Jun 26, 2:52 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jun 26, 4:35 PM MDT | Special Weather Statement | PUB | 40 min |
| Jun 27, 3:32 PM MDT | Red Flag Warning | PUB | 28 hr |
| Jun 28, 2:49 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jul 7, 4:05 PM MDT | Special Weather Statement | PUB | 25 min |
| Jul 9, 5:41 PM MDT | Special Weather Statement | PUB | 64 min |
| Jul 12, 9:33 AM MDT | Flash Flood Watch | PUB | 11 hr |
| Jul 14, 5:30 PM MDT | Severe Thunderstorm Warning | PUB | 30 min |
| Jul 15, 5:46 PM MDT | Special Weather Statement | PUB | 29 min |
| Jul 16, 5:45 PM MDT | Special Weather Statement | PUB | 45 min |
| Jul 21, 3:39 PM MDT | Special Weather Statement | PUB | 36 min |
| Jul 22, 11:15 AM MDT | Flash Flood Watch | PUB | 8 hr |
| Jul 26, 4:24 AM MDT | Flash Flood Watch | PUB | 23 hr |
| Jul 27, 4:39 PM MDT | Special Weather Statement | PUB | 36 min |
| Jul 29, 4:04 AM MDT | Flash Flood Watch | PUB | 23 hr |
| Jul 29, 4:50 PM MDT | Special Weather Statement | PUB | 25 min |
| Jul 30, 3:01 AM MDT | Flash Flood Watch | PUB | 24 hr |
| Aug 7, 3:06 PM MDT | Special Weather Statement | PUB | 54 min |
| Aug 28, 5:18 PM MDT | Special Weather Statement | PUB | 57 min |
| Sep 24, 3:15 PM MDT | Freeze Warning | PUB | 18 hr |
| Sep 25, 3:17 PM MDT | Freeze Warning | PUB | 17 hr |
| Sep 27, 4:14 AM MDT | Winter Weather Advisory | PUB | 32 hr |
| Oct 4, 12:04 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 7, 3:05 PM MDT | Winter Storm Watch | PUB | 13 hr |
| Oct 8, 3:52 AM MDT | Winter Weather Advisory | PUB | 39 hr |
| Oct 13, 3:30 AM MDT | Red Flag Warning | PUB | 38 hr |
| Oct 29, 2:51 PM MDT | Winter Weather Advisory | PUB | 46 hr |
| Nov 4, 4:12 AM MDT | High Wind Warning | PUB | 13 hr |
| Nov 6, 4:06 AM MST | Winter Weather Advisory | PUB | 49 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 | 1 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Watch | 6 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 11 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 4 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 2 |
| 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 archive20162018
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.