Alert archive / Colorado / Moffat County
Weather alerts in Moffat County, Colorado, 2019
143 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 143
- Warnings
- 46
- Watches
- 31
- Advisories
- 43
- Busiest month
- October24 alerts
- Busiest day
- April 9, 20193 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, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 0 | 100% | 4 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Junction, CO: severe thunderstorm warnings | 15 | 2 | 87% | 42 | 7% | 12 min |
| NWS Grand Junction, CO: flash flood warnings | 7 | 2 | 71% | 7 | 29% | 40 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, 3:41 AM MST | Winter Weather Advisory | GJT | 68 hr |
| Jan 10, 2:10 AM MST | Dense Fog Advisory | GJT | 8 hr |
| Jan 14, 8:42 AM MST | Dense Fog Advisory | GJT | 6 hr |
| Jan 14, 2:15 PM MST | Winter Weather Advisory | GJT | 55 hr |
| Jan 14, 8:36 PM MST | Dense Fog Advisory | GJT | 7 hr |
| Jan 16, 2:38 PM MST | Winter Weather Advisory | GJT | 57 hr |
| Jan 16, 8:59 PM MST | Winter Storm Warning | GJT | 51 hr |
| Jan 20, 3:08 AM MST | Winter Weather Advisory | GJT | 53 hr |
| Jan 22, 2:58 PM MST | Winter Weather Advisory | GJT | 59 hr |
| Jan 25, 3:34 AM MST | Winter Weather Advisory | GJT | 28 hr |
| Feb 2, 3:48 AM MST | Winter Weather Advisory | GJT | 38 hr |
| Feb 4, 3:35 PM MST | Winter Storm Watch | GJT | 12 hr |
| Feb 4, 3:35 PM MST | Winter Storm Warning | GJT | 61 hr |
| Feb 5, 2:55 PM MST | Winter Weather Advisory | GJT | 35 hr |
| Feb 12, 3:34 PM MST | Winter Storm Watch | GJT | 12 hr |
| Feb 13, 3:14 AM MST | Winter Storm Warning | GJT | 54 hr |
| Feb 14, 11:52 PM MST | Dense Fog Advisory | GJT | 11 hr |
| Feb 15, 1:53 PM MST | Winter Weather Advisory | GJT | 22 hr |
| Feb 20, 2:33 PM MST | Winter Weather Advisory | GJT | 60 hr |
| Feb 27, 2:06 PM MST | Winter Weather Advisory | GJT | 38 hr |
| Feb 28, 4:50 AM MST | Winter Storm Warning | GJT | 4 days |
| Mar 1, 4:15 AM MST | Winter Weather Advisory | GJT | 63 hr |
| Mar 5, 4:30 AM MST | Winter Storm Watch | GJT | 11 hr |
| Mar 5, 3:38 PM MST | Winter Storm Warning | GJT | 50 hr |
| Mar 7, 3:57 PM MST | Winter Storm Warning | GJT | 40 hr |
| Mar 10, 3:15 PM MDT | Winter Storm Warning | GJT | 4 days |
| Mar 11, 3:12 PM MDT | Winter Weather Advisory | GJT | 63 hr |
| Mar 12, 9:19 AM MDT | Dense Fog Advisory | GJT | 115 min |
| Mar 28, 4:30 AM MDT | Winter Weather Advisory | GJT | 50 hr |
| Apr 8, 2:10 PM MDT | Wind Advisory | GJT | 32 hr |
| Apr 8, 11:47 PM MDT | Winter Storm Watch | GJT | 4 hr |
| Apr 9, 3:52 AM MDT | Winter Storm Warning | GJT | 53 hr |
| Apr 9, 12:11 PM MDT | Wind Advisory | GJT | 33 hr |
| Apr 26, 1:02 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 7:39 PM MDT | Special Weather Statement | GJT | 51 min |
| Apr 28, 2:04 PM MDT | Wind Advisory | GJT | 6 hr |
| Apr 28, 3:13 PM MDT | Winter Storm Watch | GJT | 7 hr |
| Apr 28, 9:58 PM MDT | Winter Storm Warning | GJT | 62 hr |
| Apr 30, 3:05 PM MDT | Freeze Watch | GJT | 24 hr |
| May 1, 2:35 PM MDT | Freeze Warning | GJT | 18 hr |
| May 2, 2:22 PM MDT | Freeze Warning | GJT | 18 hr |
| May 7, 2:52 PM MDT | Winter Storm Watch | GJT | 13 hr |
| May 8, 3:49 AM MDT | Winter Weather Advisory | GJT | 35 hr |
| May 15, 7:08 PM MDT | Wind Advisory | GJT | 27 hr |
| May 19, 4:06 AM MDT | Winter Storm Watch | GJT | 11 hr |
| May 19, 3:02 PM MDT | Winter Storm Warning | GJT | 47 hr |
| May 21, 2:48 AM MDT | Freeze Watch | GJT | 12 hr |
| May 21, 2:22 PM MDT | Freeze Warning | GJT | 16 hr |
| May 27, 3:57 AM MDT | Winter Storm Watch | GJT | 11 hr |
| May 27, 2:43 PM MDT | Winter Weather Advisory | GJT | 33 hr |
| May 27, 4:53 PM MDT | Special Weather Statement | GJT | 37 min |
| Jun 2, 3:17 PM MDT | Special Weather Statement | GJT | 28 min |
| Jun 2, 8:17 PM MDT | Special Weather Statement | GJT | 43 min |
| Jun 9, 3:08 AM MDT | Freeze Watch | GJT | 11 hr |
| Jun 9, 1:40 PM MDT | Freeze Warning | GJT | 18 hr |
| Jun 13, 2:32 PM MDT | Special Weather Statement | GJT | 28 min |
| Jun 13, 2:59 PM MDT | Special Weather Statement | GJT | 31 min |
| Jun 14, 3:18 PM MDT | Special Weather Statement | GJT | 42 min |
| Jun 18, 2:05 PM MDT | Special Weather Statement | GJT | 40 min |
| Jun 18, 2:45 PM MDT | Special Weather Statement | GJT | 30 min |
| Jun 21, 8:21 AM MDT | Areal Flood Advisory | GJT | 36 hr |
| Jun 21, 8:42 AM MDT | Areal Flood Advisory | GJT | 36 hr |
| Jun 21, 10:41 AM MDT | Winter Weather Advisory | GJT | 43 hr |
| Jul 1, 2:01 PM MDT | Fire Weather Watch | GJT | 25 hr |
| Jul 1, 2:01 PM MDT | Fire Weather Watch | GJT | 36 hr |
| Jul 2, 2:53 PM MDT | Red Flag Warning | GJT | 29 hr |
| Jul 3, 2:22 AM MDT | Red Flag Warning | GJT | 42 hr |
| Jul 8, 1:35 PM MDT | Special Weather Statement | GJT | 40 min |
| Jul 14, 2:21 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Jul 15, 2:24 PM MDT | Red Flag Warning | GJT | 54 hr |
| Jul 15, 2:24 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jul 17, 2:45 PM MDT | Red Flag Warning | GJT | 29 hr |
| Jul 18, 2:51 AM MDT | Red Flag Warning | GJT | 41 hr |
| Jul 25, 5:16 PM MDT | Special Weather Statement | GJT | 29 min |
| Jul 26, 3:26 PM MDT | Special Weather Statement | GJT | 34 min |
| Aug 8, 10:27 PM MDT | Special Weather Statement | GJT | 48 min |
| Aug 8, 11:03 PM MDT | Special Weather Statement | GJT | 42 min |
| Aug 8, 11:47 PM MDT | Special Weather Statement | GJT | 43 min |
| Aug 11, 3:56 PM MDT | Special Weather Statement | GJT | 34 min |
| Aug 14, 1:56 PM MDT | Fire Weather Watch | GJT | 21 hr |
| Aug 15, 11:15 AM MDT | Fire Weather Watch | GJT | 27 hr |
| Aug 15, 11:15 AM MDT | Red Flag Warning | GJT | 33 hr |
| Aug 16, 2:01 PM MDT | Red Flag Warning | GJT | 30 hr |
| Aug 16, 4:11 PM MDT | Special Weather Statement | GJT | 49 min |
| Aug 16, 5:15 PM MDT | Severe Thunderstorm Warning | GJT | 45 min |
| Aug 17, 2:35 AM MDT | Red Flag Warning | GJT | 41 hr |
| Aug 20, 1:43 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Aug 21, 2:10 PM MDT | Red Flag Warning | GJT | 30 hr |
| Aug 23, 8:42 AM MDT | Red Flag Warning | GJT | 11 hr |
| Aug 23, 2:44 PM MDT | Fire Weather Watch | GJT | 13 hr |
| Aug 24, 3:52 AM MDT | Red Flag Warning | GJT | 40 hr |
| Aug 27, 2:53 PM MDT | Fire Weather Watch | GJT | 31 hr |
| Aug 27, 2:53 PM MDT | Red Flag Warning | GJT | 29 hr |
| Aug 28, 2:48 PM MDT | Red Flag Warning | GJT | 29 hr |
| Sep 8, 4:03 PM MDT | Severe Thunderstorm Warning | GJT | 27 min |
| Sep 8, 5:26 PM MDT | Special Weather Statement | GJT | 34 min |
| Sep 8, 6:09 PM MDT | Special Weather Statement | GJT | 51 min |
| Sep 8, 6:11 PM MDT | Severe Thunderstorm Warning | GJT | 34 min |
| Sep 8, 7:32 PM MDT | Special Weather Statement | GJT | 43 min |
| Sep 19, 3:23 PM MDT | Freeze Watch | GJT | 24 hr |
| Sep 20, 2:56 PM MDT | Freeze Warning | GJT | 18 hr |
| Sep 21, 2:42 PM MDT | Freeze Warning | GJT | 18 hr |
| Sep 26, 3:14 AM MDT | Red Flag Warning | GJT | 17 hr |
| Sep 27, 3:15 PM MDT | Wind Advisory | GJT | 30 hr |
| Sep 28, 4:22 AM MDT | Wind Advisory | GJT | 41 hr |
| Sep 29, 7:57 AM MDT | Special Weather Statement | GJT | 48 min |
| Sep 29, 9:28 AM MDT | Special Weather Statement | GJT | 47 min |
| Sep 30, 3:15 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Sep 30, 2:24 PM MDT | Red Flag Warning | GJT | 29 hr |
| Oct 2, 1:55 AM MDT | Freeze Watch | GJT | 12 hr |
| Oct 2, 2:01 PM MDT | Fire Weather Watch | GJT | 25 hr |
| Oct 2, 2:10 PM MDT | Freeze Warning | GJT | 19 hr |
| Oct 3, 2:32 PM MDT | Red Flag Warning | GJT | 29 hr |
| Oct 4, 2:15 AM MDT | Freeze Watch | GJT | 12 hr |
| Oct 4, 2:15 AM MDT | Wind Advisory | GJT | 19 hr |
| Oct 4, 2:17 PM MDT | Freeze Warning | GJT | 19 hr |
| Oct 5, 2:01 PM MDT | Freeze Warning | GJT | 19 hr |
| Oct 6, 2:11 PM MDT | Freeze Warning | GJT | 19 hr |
| Oct 7, 2:38 AM MDT | Fire Weather Watch | GJT | 10 hr |
| Oct 7, 12:11 PM MDT | Red Flag Warning | GJT | 32 hr |
| Oct 8, 3:52 AM MDT | Wind Advisory | GJT | 41 hr |
| Oct 9, 4:13 AM MDT | Winter Weather Advisory | GJT | 32 hr |
| Oct 13, 3:20 AM MDT | Fire Weather Watch | GJT | 10 hr |
| Oct 13, 1:17 PM MDT | Red Flag Warning | GJT | 30 hr |
| Oct 15, 2:15 PM MDT | Fire Weather Watch | GJT | 25 hr |
| Oct 16, 2:57 PM MDT | Red Flag Warning | GJT | 28 hr |
| Oct 18, 2:56 PM MDT | Winter Weather Advisory | GJT | 45 hr |
| Oct 20, 1:54 PM MDT | Winter Weather Advisory | GJT | 31 hr |
| Oct 26, 3:16 AM MDT | Winter Storm Watch | GJT | 12 hr |
| Oct 26, 3:28 PM MDT | Winter Storm Warning | GJT | 44 hr |
| Oct 26, 3:28 PM MDT | Winter Weather Advisory | GJT | 44 hr |
| Oct 28, 1:50 PM MDT | Winter Storm Warning | GJT | 43 hr |
| Oct 28, 1:50 PM MDT | Winter Weather Advisory | GJT | 43 hr |
| Nov 18, 2:43 PM MST | Winter Storm Watch | GJT | 12 hr |
| Nov 19, 2:39 AM MST | Winter Weather Advisory | GJT | 3 days |
| Nov 24, 2:28 PM MST | Winter Weather Advisory | GJT | 51 hr |
| Nov 26, 4:02 PM MST | Winter Storm Watch | GJT | 24 hr |
| Nov 27, 4:00 PM MST | Winter Weather Advisory | GJT | 3 days |
| Dec 7, 2:39 AM MST | Winter Weather Advisory | GJT | 56 hr |
| Dec 11, 3:02 PM MST | Winter Weather Advisory | GJT | 4 days |
| Dec 11, 9:28 PM MST | Winter Storm Watch | GJT | 41 hr |
| Dec 12, 4:09 AM MST | Winter Storm Warning | GJT | 4 days |
| Dec 23, 2:58 AM MST | Winter Weather Advisory | GJT | 68 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 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 22 |
| Flooding | |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 13 |
| Winter Storm Watch | 12 |
| Winter Weather Advisory | 28 |
| Cold | |
| Freeze Warning | 10 |
| Freeze Watch | 6 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 20 |
| Fire Weather Watch | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.