Alert archive / Colorado / La Plata County
Weather alerts in La Plata County, Colorado, 2016
91 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
La Plata County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 91
- Warnings
- 28
- Watches
- 27
- Advisories
- 28
- Busiest month
- January13 alerts
- Busiest day
- January 5, 20163 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
La Plata County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 1 | 0% | |||
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Goodland, KS: tornado warnings | 82 | 20 | 76% | 44 | 66% | 15 min |
| NWS Goodland, KS: severe thunderstorm warnings | 595 | 158 | 73% | 350 | 78% | 24 min |
| NWS Goodland, KS: flash flood warnings | 82 | 18 | 78% | 37 | 65% | 105 min |
| NWS Grand Junction, CO: severe thunderstorm warnings | 13 | 3 | 77% | 19 | 26% | 7 min |
| NWS Grand Junction, CO: flash flood warnings | 14 | 1 | 93% | 17 | 6% | 95 min |
| 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 |
| NWS Denver/Boulder, CO: tornado warnings | 30 | 6 | 80% | 20 | 60% | 12 min |
| NWS Denver/Boulder, CO: severe thunderstorm warnings | 259 | 94 | 64% | 230 | 72% | 19 min |
| NWS Denver/Boulder, CO: flash flood warnings | 8 | 1 | 88% | 3 | 33% | 18 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, 12:50 AM MST | Winter Weather Advisory | GJT | 8 hr |
| Jan 5, 10:58 AM MST | Winter Storm Watch | GJT | 5 hr |
| Jan 5, 3:30 PM MST | Winter Weather Advisory | GJT | 46 hr |
| Jan 5, 9:10 PM MST | Winter Storm Warning | GJT | 36 hr |
| Jan 6, 2:42 PM MST | Winter Storm Watch | GJT | 23 hr |
| Jan 7, 1:31 PM MST | Winter Weather Advisory | GJT | 27 hr |
| Jan 7, 11:15 PM MST | Winter Storm Warning | GJT | 18 hr |
| Jan 11, 8:22 PM MST | Dense Fog Advisory | GJT | 15 hr |
| Jan 12, 1:14 PM MST | Dense Fog Advisory | GJT | 16 hr |
| Jan 28, 10:03 PM MST | Winter Storm Warning | GJT | 5 days |
| Jan 28, 10:03 PM MST | Winter Weather Advisory | GJT | 59 hr |
| Jan 29, 3:07 PM MST | Winter Storm Watch | GJT | 50 hr |
| Jan 30, 4:27 PM MST | Winter Storm Warning | GJT | 68 hr |
| Feb 17, 12:34 PM MST | Wind Advisory | GJT | 32 hr |
| Feb 18, 2:24 PM MST | High Wind Warning | GJT | 10 hr |
| Feb 21, 3:30 PM MST | Winter Weather Advisory | GJT | 51 hr |
| Mar 5, 5:44 PM MST | Winter Weather Advisory | GJT | 47 hr |
| Mar 13, 11:40 PM MDT | Wind Advisory | GJT | 23 hr |
| Mar 21, 4:06 AM MDT | Fire Weather Watch | GJT | 9 hr |
| Mar 21, 1:10 PM MDT | Red Flag Warning | GJT | 32 hr |
| Mar 22, 3:12 AM MDT | Wind Advisory | GJT | 18 hr |
| Mar 24, 3:47 AM MDT | Winter Weather Advisory | GJT | 62 hr |
| Mar 27, 4:30 AM MDT | Fire Weather Watch | GJT | 10 hr |
| Mar 27, 2:03 PM MDT | Red Flag Warning | GJT | 27 hr |
| Mar 27, 8:48 PM MDT | Winter Weather Advisory | GJT | 60 hr |
| Apr 4, 2:45 PM MDT | Red Flag Warning | GJT | 29 hr |
| Apr 5, 4:44 AM MDT | Wind Advisory | GJT | 15 hr |
| Apr 14, 3:55 AM MDT | Winter Storm Watch | GJT | 9 hr |
| Apr 14, 3:55 AM MDT | Winter Storm Warning | GJT | 3 days |
| Apr 18, 4:01 AM MDT | Winter Weather Advisory | GJT | 20 hr |
| Apr 27, 2:27 PM MDT | Winter Weather Advisory | GJT | 55 hr |
| Jun 6, 1:29 PM MDT | River Flood Advisory | GJT | 3 days |
| Jun 9, 2:38 PM MDT | Special Weather Statement | GJT | 52 min |
| Jun 9, 4:45 PM MDT | Special Weather Statement | GJT | 45 min |
| Jun 13, 2:21 PM MDT | Fire Weather Watch | GJT | 20 hr |
| Jun 14, 9:51 AM MDT | Fire Weather Watch | GJT | 29 hr |
| Jun 14, 9:51 AM MDT | Red Flag Warning | GJT | 34 hr |
| Jun 15, 2:42 PM MDT | Red Flag Warning | GJT | 29 hr |
| Jun 19, 3:00 PM MDT | Fire Weather Watch | GJT | 37 hr |
| Jun 21, 4:00 AM MDT | Red Flag Warning | GJT | 16 hr |
| Jun 27, 1:57 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 29, 3:14 PM MDT | Special Weather Statement | GJT | 31 min |
| Jun 30, 3:16 PM MDT | Flash Flood Watch | GJT | 30 hr |
| Jul 8, 5:38 AM MDT | Fire Weather Watch | GJT | 16 hr |
| Jul 8, 9:48 PM MDT | Red Flag Warning | GJT | 50 hr |
| Jul 10, 2:24 PM MDT | Fire Weather Watch | GJT | 5 hr |
| Jul 10, 7:53 PM MDT | Red Flag Warning | GJT | 24 hr |
| Jul 15, 3:45 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Jul 15, 2:58 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jul 15, 2:58 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jul 16, 6:17 PM MDT | Red Flag Warning | GJT | 27 hr |
| Jul 17, 12:12 PM MDT | Fire Weather Watch | GJT | 10 hr |
| Jul 17, 9:42 PM MDT | Red Flag Warning | GJT | 24 hr |
| Jul 19, 7:46 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Aug 3, 3:40 AM MDT | Flash Flood Watch | GJT | 20 hr |
| Aug 3, 2:56 PM MDT | Flash Flood Watch | GJT | 29 hr |
| Aug 4, 2:25 PM MDT | Flash Flood Watch | GJT | 34 hr |
| Aug 4, 9:06 PM MDT | Special Weather Statement | GJT | 39 min |
| Aug 5, 2:23 PM MDT | Flash Flood Watch | GJT | 32 hr |
| Aug 7, 5:05 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Aug 23, 3:07 AM MDT | Flash Flood Watch | GJT | 19 hr |
| Aug 24, 2:58 PM MDT | Special Weather Statement | GJT | 47 min |
| Aug 24, 3:32 PM MDT | Special Weather Statement | GJT | 43 min |
| Sep 5, 4:30 AM MDT | Red Flag Warning | GJT | 16 hr |
| Sep 5, 1:56 PM MDT | Fire Weather Watch | GJT | 14 hr |
| Sep 16, 1:48 PM MDT | Freeze Warning | GJT | 19 hr |
| Sep 22, 3:19 AM MDT | High Wind Warning | GJT | 20 hr |
| Sep 22, 3:19 AM MDT | Wind Advisory | GJT | 20 hr |
| Sep 22, 1:55 PM MDT | Special Weather Statement | GJT | 50 min |
| Sep 23, 6:31 AM MDT | Special Weather Statement | GJT | 44 min |
| Oct 3, 3:22 AM MDT | Freeze Watch | GJT | 12 hr |
| Oct 3, 3:00 PM MDT | Freeze Warning | GJT | 18 hr |
| Oct 16, 2:24 AM MDT | Wind Advisory | GJT | 31 hr |
| Nov 3, 3:32 PM MDT | Winter Weather Advisory | GJT | 56 hr |
| Nov 15, 3:32 PM MST | Winter Storm Watch | GJT | 24 hr |
| Nov 16, 4:30 AM MST | Winter Weather Advisory | GJT | 44 hr |
| Nov 19, 3:30 PM MST | Winter Storm Watch | GJT | 23 hr |
| Nov 20, 3:55 AM MST | Winter Storm Warning | GJT | 62 hr |
| Nov 25, 2:15 PM MST | Winter Storm Watch | GJT | 14 hr |
| Nov 26, 4:29 AM MST | Winter Storm Warning | GJT | 3 days |
| Nov 26, 4:29 AM MST | Winter Weather Advisory | GJT | 3 days |
| Dec 12, 9:01 PM MST | Dense Fog Advisory | GJT | 12 hr |
| Dec 14, 4:02 PM MST | Winter Storm Watch | GJT | 12 hr |
| Dec 15, 3:45 AM MST | Winter Storm Warning | GJT | 55 hr |
| Dec 16, 9:09 AM MST | Winter Weather Advisory | GJT | 7 hr |
| Dec 17, 11:07 AM MST | Winter Storm Warning | GJT | 9 hr |
| Dec 21, 3:13 PM MST | Winter Storm Warning | GJT | 41 hr |
| Dec 21, 3:13 PM MST | Winter Weather Advisory | GJT | 41 hr |
| Dec 23, 2:53 AM MST | Winter Storm Watch | GJT | 21 hr |
| Dec 23, 2:26 PM MST | Winter Storm Warning | GJT | 50 hr |
| Dec 23, 11:24 PM MST | Winter Weather Advisory | GJT | 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 | |
| Special Weather Statement | 8 |
| Flooding | |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 11 |
| Winter Storm Watch | 9 |
| Winter Weather Advisory | 16 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 13 |
| Fire Weather Watch | 11 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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.