Alert archive / Colorado / Alamosa County
Weather alerts in Alamosa County, Colorado, 2010
109 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 109
- Warnings
- 48
- Watches
- 46
- Advisories
- 15
- Busiest month
- May34 alerts
- Busiest day
- May 30, 20104 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 1 | 50% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pueblo, CO: tornado warnings | 47 | 12 | 74% | 30 | 73% | 19 min |
| NWS Pueblo, CO: severe thunderstorm warnings | 225 | 85 | 62% | 207 | 81% | 25 min |
| NWS Pueblo, CO: flash flood warnings | 37 | 8 | 78% | 13 | 77% | 32 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 20, 9:02 PM MST | Winter Weather Advisory | PUB | 42 hr |
| Jan 26, 3:17 PM MST | Winter Storm Watch | PUB | 24 hr |
| Jan 27, 4:22 AM MST | Winter Weather Advisory | PUB | 43 hr |
| Feb 5, 3:46 PM MST | Winter Storm Watch | PUB | 22 hr |
| Feb 6, 5:14 AM MST | Winter Storm Warning | PUB | 59 hr |
| Feb 6, 5:14 AM MST | Winter Weather Advisory | PUB | 54 hr |
| Feb 21, 3:40 AM MST | Winter Weather Advisory | PUB | 38 hr |
| Mar 7, 3:51 AM MST | Winter Weather Advisory | PUB | 37 hr |
| Mar 7, 3:03 PM MST | Winter Storm Watch | PUB | 13 hr |
| Mar 9, 3:55 AM MST | Winter Storm Watch | PUB | 8 hr |
| Mar 9, 12:08 PM MST | Winter Storm Warning | PUB | 39 hr |
| Mar 13, 3:45 PM MST | Winter Storm Watch | PUB | 13 hr |
| Mar 13, 9:04 PM MST | Winter Weather Advisory | PUB | 29 hr |
| Mar 17, 2:37 PM MDT | Winter Storm Watch | PUB | 27 hr |
| Mar 18, 4:03 AM MDT | Winter Storm Warning | PUB | 47 hr |
| Mar 18, 5:07 PM MDT | Winter Weather Advisory | PUB | 34 hr |
| Mar 21, 9:11 PM MDT | Winter Storm Watch | PUB | 24 hr |
| Mar 22, 9:01 PM MDT | Winter Storm Warning | PUB | 45 hr |
| Mar 22, 9:01 PM MDT | Winter Weather Advisory | PUB | 45 hr |
| Mar 25, 3:22 PM MDT | Winter Weather Advisory | PUB | 39 hr |
| Apr 5, 6:26 AM MDT | High Wind Warning | PUB | 14 hr |
| Apr 22, 3:17 PM MDT | Winter Storm Warning | PUB | 45 hr |
| Apr 27, 3:45 PM MDT | High Wind Watch | PUB | 13 hr |
| Apr 28, 4:30 AM MDT | High Wind Warning | PUB | 32 hr |
| May 3, 3:27 PM MDT | Fire Weather Watch | PUB | 13 hr |
| May 3, 3:27 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 4, 4:20 AM MDT | Red Flag Warning | PUB | 40 hr |
| May 4, 3:19 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 5, 3:17 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 5, 3:17 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 6, 3:41 PM MDT | Fire Weather Watch | PUB | 23 hr |
| May 6, 3:41 PM MDT | Red Flag Warning | PUB | 28 hr |
| May 7, 2:58 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 7, 2:58 PM MDT | Red Flag Warning | PUB | 24 hr |
| May 8, 2:52 PM MDT | Fire Weather Watch | PUB | 24 hr |
| May 8, 2:52 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 9, 3:09 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 10, 4:28 AM MDT | Fire Weather Watch | PUB | 10 hr |
| May 10, 2:55 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 15, 2:46 PM MDT | Freeze Warning | PUB | 16 hr |
| May 19, 12:46 PM MDT | Frost Advisory | PUB | 19 hr |
| May 20, 4:41 AM MDT | Fire Weather Watch | PUB | 34 hr |
| May 20, 2:59 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 21, 4:42 AM MDT | Fire Weather Watch | PUB | 34 hr |
| May 21, 2:58 PM MDT | Red Flag Warning | PUB | 28 hr |
| May 22, 4:50 AM MDT | Fire Weather Watch | PUB | 35 hr |
| May 22, 3:01 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 23, 3:30 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 24, 4:39 AM MDT | Freeze Warning | PUB | 27 hr |
| May 24, 10:16 AM MDT | High Wind Warning | PUB | 8 hr |
| May 28, 4:04 AM MDT | Fire Weather Watch | PUB | 10 hr |
| May 28, 4:04 AM MDT | Red Flag Warning | PUB | 15 hr |
| May 28, 2:20 PM MDT | Red Flag Warning | PUB | 30 hr |
| May 30, 4:27 AM MDT | Fire Weather Watch | PUB | 10 hr |
| May 30, 4:27 AM MDT | Red Flag Warning | PUB | 16 hr |
| May 30, 2:38 PM MDT | Fire Weather Watch | PUB | 22 hr |
| May 30, 2:38 PM MDT | Red Flag Warning | PUB | 29 hr |
| May 31, 12:32 PM MDT | Red Flag Warning | PUB | 31 hr |
| Jun 5, 5:55 PM MDT | Severe Thunderstorm Warning | PUB | 65 min |
| Jun 5, 6:55 PM MDT | Severe Thunderstorm Warning | PUB | 28 min |
| Jun 7, 3:21 PM MDT | Fire Weather Watch | PUB | 26 hr |
| Jun 8, 2:55 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Jun 8, 2:55 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jun 9, 3:10 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jun 14, 3:32 PM MDT | Fire Weather Watch | PUB | 13 hr |
| Jun 15, 4:25 AM MDT | Fire Weather Watch | PUB | 35 hr |
| Jun 15, 4:25 AM MDT | Red Flag Warning | PUB | 41 hr |
| Jun 15, 3:57 PM MDT | High Wind Watch | PUB | 29 hr |
| Jun 16, 3:31 PM MDT | High Wind Warning | PUB | 17 hr |
| Jun 16, 3:52 PM MDT | Fire Weather Watch | PUB | 23 hr |
| Jun 16, 3:52 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jun 17, 3:01 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Jun 17, 3:01 PM MDT | Red Flag Warning | PUB | 29 hr |
| Jun 18, 3:06 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Jun 18, 3:06 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 19, 3:12 PM MDT | Fire Weather Watch | PUB | 23 hr |
| Jun 19, 3:12 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 20, 2:40 PM MDT | Fire Weather Watch | PUB | 24 hr |
| Jun 20, 2:40 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jun 21, 2:35 PM MDT | Red Flag Warning | PUB | 30 hr |
| Jul 23, 10:10 PM MDT | Flash Flood Watch | PUB | 46 hr |
| Jul 30, 3:37 AM MDT | Flash Flood Watch | PUB | 17 hr |
| Jul 30, 1:47 PM MDT | Areal Flood Advisory | PUB | 41 min |
| Jul 30, 3:53 PM MDT | Flash Flood Watch | PUB | 29 hr |
| Jul 31, 3:39 PM MDT | Flash Flood Watch | PUB | 32 hr |
| Aug 1, 4:04 AM MDT | Flash Flood Watch | PUB | 43 hr |
| Aug 3, 4:29 AM MDT | Flash Flood Watch | PUB | 18 hr |
| Aug 3, 4:29 AM MDT | Flash Flood Watch | PUB | 42 hr |
| Aug 4, 11:27 AM MDT | Flash Flood Watch | PUB | 33 hr |
| Sep 6, 4:21 AM MDT | Freeze Watch | PUB | 11 hr |
| Sep 6, 3:09 PM MDT | Freeze Warning | PUB | 16 hr |
| Sep 10, 4:00 AM MDT | Freeze Watch | PUB | 11 hr |
| Sep 10, 3:03 PM MDT | Freeze Warning | PUB | 17 hr |
| Sep 11, 3:47 AM MDT | Freeze Warning | PUB | 7 hr |
| Sep 20, 3:41 AM MDT | Red Flag Warning | PUB | 17 hr |
| Oct 8, 4:51 AM MDT | Freeze Watch | PUB | 11 hr |
| Oct 8, 3:49 PM MDT | Freeze Warning | PUB | 17 hr |
| Nov 23, 3:21 PM MST | High Wind Watch | PUB | 6 hr |
| Nov 23, 9:33 PM MST | High Wind Warning | PUB | 16 hr |
| Dec 14, 2:53 PM MST | Winter Storm Watch | PUB | 13 hr |
| Dec 14, 2:53 PM MST | Winter Weather Advisory | PUB | 68 hr |
| Dec 18, 3:01 PM MST | High Wind Watch | PUB | 14 hr |
| Dec 19, 4:31 AM MST | High Wind Warning | PUB | 37 hr |
| Dec 19, 5:36 PM MST | Winter Weather Advisory | PUB | 4 days |
| Dec 28, 2:59 PM MST | High Wind Watch | PUB | 15 hr |
| Dec 28, 3:23 PM MST | Winter Weather Advisory | PUB | 68 hr |
| Dec 29, 4:34 AM MST | High Wind Warning | PUB | 10 hr |
| Dec 31, 5:24 AM MST | Wind Chill Advisory | PUB | 10 hr |
| Dec 31, 3:15 PM MST | Wind Chill 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 | 2 |
| Flooding | |
| Flash Flood Watch | 8 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 6 |
| Wind Chill Warning | 1 |
| Freeze Watch | 3 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 7 |
| High Wind Watch | 5 |
| Fire | |
| Red Flag Warning | 27 |
| Fire Weather Watch | 22 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.