Alert archive / Colorado / La Plata County
Weather alerts in La Plata County, Colorado, 2014
104 weather alerts in 2014, 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 2014. Tap one for its archive.
- Alerts
- 104
- Warnings
- 36
- Watches
- 35
- Advisories
- 30
- Busiest month
- June17 alerts
- Busiest day
- May 17, 20143 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, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 3 | 0% | |||
| Flash flood warnings | 1 | 0 | 100% | 4 | 0% |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Junction, CO: tornado warnings | 0 | 1 | 0% | |||
| NWS Grand Junction, CO: severe thunderstorm warnings | 2 | 1 | 50% | 28 | 4% | 1 min |
| NWS Grand Junction, CO: flash flood warnings | 21 | 5 | 76% | 44 | 14% | 82 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 27, 3:42 PM MST | Winter Storm Watch | GJT | 35 hr |
| Jan 28, 3:04 PM MST | Winter Storm Warning | GJT | 4 days |
| Feb 2, 1:15 PM MST | Winter Storm Watch | GJT | 5 hr |
| Feb 2, 5:49 PM MST | Winter Storm Warning | GJT | 53 hr |
| Feb 4, 8:51 PM MST | Winter Storm Watch | GJT | 19 hr |
| Feb 5, 4:20 AM MST | Winter Storm Warning | GJT | 6 days |
| Feb 6, 3:37 PM MST | Winter Weather Advisory | GJT | 27 hr |
| Feb 10, 11:31 AM MST | Winter Weather Advisory | GJT | 9 hr |
| Feb 26, 2:13 PM MST | Winter Weather Advisory | GJT | 43 hr |
| Feb 27, 3:37 AM MST | Winter Storm Watch | GJT | 34 hr |
| Feb 28, 5:00 AM MST | Winter Storm Warning | GJT | 59 hr |
| Mar 14, 3:15 PM MDT | Wind Advisory | GJT | 29 hr |
| Mar 16, 3:05 PM MDT | Wind Advisory | GJT | 30 hr |
| Mar 25, 3:58 PM MDT | Winter Storm Watch | GJT | 12 hr |
| Mar 26, 3:58 AM MDT | Winter Storm Warning | GJT | 48 hr |
| Mar 26, 4:01 AM MDT | Wind Advisory | GJT | 16 hr |
| Mar 29, 10:41 AM MDT | Wind Advisory | GJT | 34 hr |
| Mar 31, 2:45 PM MDT | Wind Advisory | GJT | 30 hr |
| Apr 1, 8:00 AM MDT | Red Flag Warning | GJT | 13 hr |
| Apr 1, 4:05 PM MDT | Winter Weather Advisory | GJT | 44 hr |
| Apr 8, 2:42 PM MDT | Red Flag Warning | GJT | 28 hr |
| Apr 8, 11:27 PM MDT | Fire Weather Watch | GJT | 16 hr |
| Apr 9, 3:20 PM MDT | Red Flag Warning | GJT | 28 hr |
| Apr 12, 4:15 AM MDT | Winter Weather Advisory | GJT | 47 hr |
| Apr 24, 3:31 PM MDT | Winter Storm Watch | GJT | 23 hr |
| Apr 25, 3:00 PM MDT | Winter Storm Warning | GJT | 54 hr |
| Apr 25, 3:00 PM MDT | Winter Weather Advisory | GJT | 54 hr |
| Apr 28, 10:27 AM MDT | Wind Advisory | GJT | 10 hr |
| May 3, 2:19 PM MDT | Red Flag Warning | GJT | 3 days |
| May 7, 1:18 PM MDT | Red Flag Warning | GJT | 7 hr |
| May 9, 3:04 AM MDT | Winter Storm Watch | GJT | 19 hr |
| May 9, 3:13 PM MDT | Winter Storm Warning | GJT | 4 days |
| May 16, 3:19 PM MDT | Fire Weather Watch | GJT | 23 hr |
| May 16, 3:19 PM MDT | Fire Weather Watch | GJT | 23 hr |
| May 17, 4:04 AM MDT | Red Flag Warning | GJT | 17 hr |
| May 17, 2:28 PM MDT | Red Flag Warning | GJT | 31 hr |
| May 17, 2:28 PM MDT | Red Flag Warning | GJT | 55 hr |
| May 19, 2:37 PM MDT | Fire Weather Watch | GJT | 24 hr |
| May 19, 2:37 PM MDT | Red Flag Warning | GJT | 30 hr |
| May 20, 2:32 PM MDT | Red Flag Warning | GJT | 29 hr |
| May 23, 3:02 PM MDT | Winter Storm Watch | GJT | 24 hr |
| May 24, 3:01 PM MDT | Winter Weather Advisory | GJT | 17 hr |
| Jun 1, 2:37 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jun 2, 3:05 PM MDT | Red Flag Warning | GJT | 29 hr |
| Jun 7, 2:47 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 8, 4:25 AM MDT | Wind Advisory | GJT | 17 hr |
| Jun 11, 2:32 PM MDT | Fire Weather Watch | GJT | 22 hr |
| Jun 12, 12:23 PM MDT | Red Flag Warning | GJT | 33 hr |
| Jun 12, 2:50 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jun 13, 3:15 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 14, 2:52 PM MDT | Fire Weather Watch | GJT | 13 hr |
| Jun 15, 4:16 AM MDT | Fire Weather Watch | GJT | 23 hr |
| Jun 15, 4:16 AM MDT | Red Flag Warning | GJT | 16 hr |
| Jun 15, 4:16 AM MDT | Red Flag Warning | GJT | 43 hr |
| Jun 16, 3:43 AM MDT | Red Flag Warning | GJT | 41 hr |
| Jun 16, 2:54 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jun 16, 3:18 PM MDT | Wind Advisory | GJT | 30 hr |
| Jun 17, 3:09 PM MDT | Red Flag Warning | GJT | 28 hr |
| Jun 25, 2:06 PM MDT | Red Flag Warning | GJT | 31 hr |
| Jul 1, 2:51 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jul 2, 2:37 PM MDT | Red Flag Warning | GJT | 31 hr |
| Jul 8, 2:27 PM MDT | Flash Flood Watch | GJT | 69 hr |
| Jul 15, 2:12 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 16, 11:40 AM MDT | Flash Flood Watch | GJT | 12 hr |
| Jul 27, 9:09 PM MDT | Flash Flood Watch | GJT | 27 hr |
| Jul 28, 3:55 PM MDT | Flash Flood Watch | GJT | 31 hr |
| Jul 28, 5:29 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Aug 4, 4:20 PM MDT | Flash Flood Watch | GJT | 6 hr |
| Aug 12, 2:46 PM MDT | Flash Flood Watch | GJT | 47 hr |
| Aug 25, 9:12 PM MDT | Flash Flood Watch | GJT | 23 hr |
| Sep 7, 3:30 PM MDT | Flash Flood Watch | GJT | 53 hr |
| Sep 21, 4:05 AM MDT | Flash Flood Warning | GJT | 4 hr |
| Sep 21, 10:24 AM MDT | Flash Flood Watch | GJT | 23 hr |
| Sep 22, 3:42 AM MDT | Areal Flood Advisory | GJT | 3 hr |
| Sep 27, 3:00 PM MDT | Flash Flood Watch | GJT | 27 hr |
| Sep 28, 10:23 AM MDT | Areal Flood Advisory | GJT | 112 min |
| Sep 29, 2:47 PM MDT | Special Weather Statement | ABQ | 43 min |
| Sep 30, 2:22 PM MDT | Freeze Watch | GJT | 24 hr |
| Oct 1, 2:51 PM MDT | Freeze Warning | GJT | 18 hr |
| Oct 2, 2:56 PM MDT | Freeze Warning | GJT | 18 hr |
| Oct 9, 4:40 AM MDT | Flash Flood Watch | GJT | 15 hr |
| Oct 9, 4:47 AM MDT | Winter Weather Advisory | GJT | 27 hr |
| Oct 9, 5:00 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Oct 11, 3:12 PM MDT | Special Weather Statement | GJT | 48 min |
| Oct 11, 9:55 PM MDT | Wind Advisory | GJT | 21 hr |
| Oct 12, 2:58 AM MDT | Freeze Watch | GJT | 12 hr |
| Oct 12, 3:15 PM MDT | Freeze Warning | GJT | 18 hr |
| Nov 1, 3:30 AM MDT | Winter Storm Watch | GJT | 12 hr |
| Nov 1, 3:36 PM MDT | Winter Storm Warning | GJT | 46 hr |
| Nov 1, 10:42 PM MDT | Winter Weather Advisory | GJT | 39 hr |
| Nov 12, 3:09 PM MST | Winter Storm Warning | GJT | 4 days |
| Nov 21, 3:19 AM MST | Winter Weather Advisory | GJT | 62 hr |
| Dec 4, 2:33 AM MST | Winter Weather Advisory | GJT | 12 hr |
| Dec 5, 2:30 AM MST | Dense Fog Advisory | GJT | 6 hr |
| Dec 12, 3:36 PM MST | Winter Weather Advisory | GJT | 62 hr |
| Dec 13, 6:15 PM MST | Winter Storm Warning | GJT | 24 hr |
| Dec 16, 3:01 PM MST | Winter Weather Advisory | GJT | 42 hr |
| Dec 20, 3:29 AM MST | Winter Weather Advisory | GJT | 63 hr |
| Dec 22, 3:09 AM MST | Blizzard Warning | GJT | 21 hr |
| Dec 22, 3:10 AM MST | Wind Advisory | GJT | 17 hr |
| Dec 23, 4:31 AM MST | Winter Storm Watch | GJT | 35 hr |
| Dec 24, 3:13 PM MST | Winter Weather Advisory | GJT | 57 hr |
| Dec 25, 2:47 PM MST | Winter Storm Warning | GJT | 33 hr |
| Dec 30, 3:21 AM MST | Winter Storm Watch | GJT | 10 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 | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 11 |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 11 |
| Winter Storm Watch | 11 |
| Winter Weather Advisory | 15 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 20 |
| Fire Weather Watch | 11 |
| 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 archive20132015
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.