Alert archive / Colorado / Moffat County
Weather alerts in Moffat County, Colorado, 2015
115 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Moffat County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 115
- Warnings
- 36
- Watches
- 25
- Advisories
- 42
- Busiest month
- April18 alerts
- Busiest day
- April 13, 20155 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Moffat County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 2 | 33% | 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 Grand Junction, CO: tornado warnings | 3 | 1 | 67% | 3 | 33% | 25 min |
| NWS Grand Junction, CO: severe thunderstorm warnings | 45 | 7 | 84% | 22 | 27% | 20 min |
| NWS Grand Junction, CO: flash flood warnings | 17 | 3 | 82% | 19 | 16% | 51 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 2, 3:09 PM MST | Winter Weather Advisory | GJT | 32 hr |
| Jan 7, 1:56 AM MST | Dense Fog Advisory | GJT | 8 hr |
| Jan 9, 11:03 PM MST | Dense Fog Advisory | GJT | 12 hr |
| Jan 10, 7:59 PM MST | Winter Weather Advisory | GJT | 22 hr |
| Jan 14, 4:56 AM MST | Dense Fog Advisory | GJT | 4 hr |
| Jan 31, 12:30 AM MST | Dense Fog Advisory | GJT | 9 hr |
| Feb 1, 7:47 PM MST | Winter Weather Advisory | GJT | 37 hr |
| Feb 2, 9:15 PM MST | Winter Storm Watch | GJT | 6 hr |
| Feb 3, 3:16 AM MST | Winter Storm Warning | GJT | 42 hr |
| Feb 15, 10:27 AM MST | Winter Weather Advisory | GJT | 32 hr |
| Feb 19, 4:57 AM MST | Winter Storm Watch | GJT | 24 hr |
| Feb 20, 4:42 AM MST | Winter Storm Warning | GJT | 4 days |
| Feb 20, 4:42 AM MST | Winter Weather Advisory | GJT | 3 days |
| Feb 26, 2:12 PM MST | Winter Storm Warning | GJT | 6 days |
| Feb 27, 3:10 PM MST | Winter Storm Watch | GJT | 14 hr |
| Feb 28, 4:46 AM MST | Winter Storm Watch | GJT | 24 hr |
| Mar 2, 7:44 AM MST | Freezing Rain Advisory | GJT | 3 hr |
| Apr 3, 3:16 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Apr 4, 1:18 PM MDT | Red Flag Warning | GJT | 7 hr |
| Apr 4, 2:46 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Apr 4, 2:46 PM MDT | Red Flag Warning | GJT | 29 hr |
| Apr 5, 2:40 PM MDT | Fire Weather Watch | GJT | 23 hr |
| Apr 5, 2:40 PM MDT | Red Flag Warning | GJT | 30 hr |
| Apr 6, 2:06 PM MDT | Red Flag Warning | GJT | 31 hr |
| Apr 8, 10:23 AM MDT | Wind Advisory | GJT | 9 hr |
| Apr 12, 3:10 PM MDT | Fire Weather Watch | GJT | 21 hr |
| Apr 13, 4:35 AM MDT | High Wind Watch | GJT | 17 hr |
| Apr 13, 11:51 AM MDT | Red Flag Warning | GJT | 33 hr |
| Apr 13, 2:56 PM MDT | Freeze Watch | GJT | 36 hr |
| Apr 13, 2:56 PM MDT | High Wind Warning | GJT | 36 hr |
| Apr 13, 2:56 PM MDT | Wind Advisory | GJT | 36 hr |
| Apr 15, 3:05 AM MDT | Freeze Warning | GJT | 30 hr |
| Apr 16, 4:11 AM MDT | Winter Weather Advisory | GJT | 68 hr |
| Apr 16, 2:43 PM MDT | Wind Advisory | GJT | 6 hr |
| Apr 25, 2:51 PM MDT | Winter Weather Advisory | GJT | 37 hr |
| May 7, 3:15 PM MDT | Winter Storm Watch | GJT | 36 hr |
| May 9, 3:14 AM MDT | Winter Weather Advisory | GJT | 32 hr |
| May 13, 3:48 PM MDT | Winter Storm Watch | GJT | 23 hr |
| May 14, 2:58 PM MDT | Winter Weather Advisory | GJT | 66 hr |
| May 18, 12:19 PM MDT | Winter Weather Advisory | GJT | 24 hr |
| May 18, 4:35 PM MDT | Special Weather Statement | GJT | 85 min |
| May 28, 5:11 PM MDT | Special Weather Statement | GJT | 49 min |
| Jun 9, 2:46 PM MDT | Flash Flood Watch | GJT | 3 days |
| Jun 13, 4:44 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Jun 13, 5:28 PM MDT | Areal Flood Advisory | GJT | 2 hr |
| Jun 15, 5:26 PM MDT | Special Weather Statement | GJT | 49 min |
| Jun 16, 1:40 PM MDT | Severe Thunderstorm Warning | GJT | 35 min |
| Jun 16, 2:14 PM MDT | Severe Thunderstorm Warning | GJT | 31 min |
| Jun 16, 2:44 PM MDT | Severe Thunderstorm Warning | GJT | 11 min |
| Jun 16, 2:44 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 4:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 19, 12:22 PM MDT | Red Flag Warning | GJT | 8 hr |
| Jun 20, 4:26 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Jun 20, 3:02 PM MDT | Red Flag Warning | GJT | 29 hr |
| Jun 22, 5:25 AM MDT | Red Flag Warning | GJT | 15 hr |
| Jun 25, 1:49 PM MDT | Red Flag Warning | GJT | 7 hr |
| Jul 11, 2:40 PM MDT | Special Weather Statement | GJT | 50 min |
| Jul 15, 4:25 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jul 15, 4:39 PM MDT | Special Weather Statement | GJT | 51 min |
| Jul 17, 4:19 AM MDT | Red Flag Warning | GJT | 16 hr |
| Jul 22, 5:05 PM MDT | Special Weather Statement | GJT | 40 min |
| Jul 23, 9:10 AM MDT | Red Flag Warning | GJT | 10 hr |
| Jul 25, 2:52 PM MDT | Fire Weather Watch | GJT | 9 hr |
| Jul 25, 2:52 PM MDT | Fire Weather Watch | GJT | 23 hr |
| Jul 25, 2:52 PM MDT | Red Flag Warning | GJT | 5 hr |
| Jul 25, 11:42 PM MDT | Red Flag Warning | GJT | 20 hr |
| Jul 26, 1:48 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jul 27, 1:55 PM MDT | Wind Advisory | GJT | 6 hr |
| Aug 2, 3:36 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Aug 2, 7:38 PM MDT | Special Weather Statement | GJT | 52 min |
| Aug 5, 4:30 AM MDT | Red Flag Warning | GJT | 16 hr |
| Aug 17, 10:37 AM MDT | Red Flag Warning | GJT | 13 hr |
| Aug 19, 2:52 AM MDT | Fire Weather Watch | GJT | 36 hr |
| Aug 20, 3:00 PM MDT | Fire Weather Watch | GJT | 9 hr |
| Aug 20, 3:00 PM MDT | Red Flag Warning | GJT | 29 hr |
| Aug 31, 3:34 PM MDT | Special Weather Statement | GJT | 41 min |
| Aug 31, 4:32 PM MDT | Special Weather Statement | GJT | 43 min |
| Sep 15, 8:14 PM MDT | Special Weather Statement | GJT | 46 min |
| Oct 2, 2:01 PM MDT | Wind Advisory | GJT | 7 hr |
| Oct 12, 4:10 AM MDT | Freeze Warning | GJT | 29 hr |
| Oct 21, 1:44 PM MDT | Winter Weather Advisory | GJT | 46 hr |
| Oct 22, 12:10 AM MDT | Winter Weather Advisory | GJT | 35 hr |
| Oct 22, 2:50 PM MDT | Freeze Watch | GJT | 22 hr |
| Oct 23, 12:38 PM MDT | Freeze Warning | GJT | 20 hr |
| Oct 26, 3:02 PM MDT | Freeze Watch | GJT | 21 hr |
| Oct 27, 12:11 PM MDT | Freeze Warning | GJT | 21 hr |
| Nov 2, 4:30 AM MST | Winter Storm Watch | GJT | 31 hr |
| Nov 3, 4:50 AM MST | Winter Storm Warning | GJT | 61 hr |
| Nov 3, 4:51 AM MST | Wind Advisory | GJT | 13 hr |
| Nov 5, 3:08 PM MST | Winter Weather Advisory | GJT | 24 hr |
| Nov 9, 4:06 PM MST | Winter Storm Warning | GJT | 44 hr |
| Nov 9, 4:06 PM MST | Winter Weather Advisory | GJT | 44 hr |
| Nov 10, 4:28 PM MST | Winter Weather Advisory | GJT | 13 hr |
| Nov 14, 1:36 PM MST | Winter Storm Watch | GJT | 27 hr |
| Nov 15, 1:04 AM MST | Winter Storm Warning | GJT | 55 hr |
| Nov 15, 4:00 AM MST | Winter Weather Advisory | GJT | 52 hr |
| Nov 17, 2:40 PM MST | Winter Weather Advisory | GJT | 27 hr |
| Nov 18, 9:00 AM MST | Wind Advisory | GJT | 8 hr |
| Nov 19, 4:26 AM MST | Winter Weather Advisory | GJT | 38 hr |
| Nov 19, 2:37 PM MST | Winter Storm Warning | GJT | 27 hr |
| Nov 28, 9:34 PM MST | Winter Weather Advisory | GJT | 8 hr |
| Nov 30, 6:50 PM MST | Winter Weather Advisory | GJT | 5 hr |
| Dec 10, 3:26 PM MST | Winter Storm Warning | GJT | 51 hr |
| Dec 10, 3:26 PM MST | Winter Weather Advisory | GJT | 57 hr |
| Dec 12, 11:23 PM MST | Dense Fog Advisory | GJT | 9 hr |
| Dec 13, 3:33 PM MST | Winter Weather Advisory | GJT | 53 hr |
| Dec 14, 1:40 PM MST | Winter Storm Warning | GJT | 43 hr |
| Dec 16, 9:00 AM MST | Winter Weather Advisory | GJT | 23 hr |
| Dec 20, 5:00 AM MST | Winter Storm Watch | GJT | 32 hr |
| Dec 21, 5:14 AM MST | Winter Storm Warning | GJT | 63 hr |
| Dec 21, 5:14 AM MST | Winter Weather Advisory | GJT | 8 hr |
| Dec 23, 2:09 PM MST | Winter Storm Watch | GJT | 25 hr |
| Dec 23, 2:09 PM MST | Winter Storm Warning | GJT | 67 hr |
| Dec 23, 2:09 PM MST | Winter Weather Advisory | GJT | 67 hr |
| Dec 31, 7:38 AM MST | Dense Fog Advisory | GJT | 4 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 | 3 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 10 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 11 |
| Winter Storm Watch | 10 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 25 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 17 |
| Fire Weather Watch | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.