Alert archive / Colorado / Mesa County
Weather alerts in Mesa County, Colorado, 2024
181 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mesa County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 181
- Warnings
- 42
- Watches
- 24
- Advisories
- 46
- Busiest month
- June50 alerts
- Busiest day
- June 27, 202415 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Mesa County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 2 | 82% | 2 | 50% | 12 min |
| Flash flood warnings | 7 | 1 | 86% | 1 | 100% | 25 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Junction, CO: tornado warnings | 0 | 2 | 0% | |||
| NWS Grand Junction, CO: severe thunderstorm warnings | 90 | 9 | 90% | 42 | 26% | 12 min |
| NWS Grand Junction, CO: flash flood warnings | 57 | 8 | 86% | 42 | 26% | 43 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, 1:58 PM MST | Winter Storm Watch | GJT | 13 hr |
| Jan 6, 3:21 AM MST | Winter Storm Warning | GJT | 53 hr |
| Jan 6, 3:21 AM MST | Winter Weather Advisory | GJT | 56 hr |
| Jan 10, 1:12 PM MST | Winter Weather Advisory | GJT | 28 hr |
| Jan 12, 12:44 PM MST | Wind Advisory | GJT | 11 hr |
| Jan 12, 2:47 PM MST | Winter Storm Watch | GJT | 24 hr |
| Jan 13, 2:22 PM MST | Winter Storm Warning | GJT | 51 hr |
| Jan 13, 2:22 PM MST | Winter Weather Advisory | GJT | 40 hr |
| Jan 24, 1:10 PM MST | Winter Weather Advisory | GJT | 40 hr |
| Jan 30, 1:20 PM MST | Winter Storm Watch | GJT | 49 hr |
| Feb 1, 2:07 AM MST | Winter Storm Warning | GJT | 3 days |
| Feb 1, 2:07 AM MST | Winter Weather Advisory | GJT | 3 days |
| Feb 5, 1:56 AM MST | Winter Storm Watch | GJT | 13 hr |
| Feb 5, 3:19 PM MST | Winter Storm Warning | GJT | 71 hr |
| Feb 6, 3:04 PM MST | Winter Weather Advisory | GJT | 3 days |
| Feb 24, 12:53 PM MST | Winter Storm Watch | GJT | 25 hr |
| Feb 25, 2:11 PM MST | Winter Storm Warning | GJT | 56 hr |
| Feb 27, 6:36 AM MST | Snow Squall Warning | GJT | 24 min |
| Feb 27, 6:55 AM MST | Snow Squall Warning | GJT | 35 min |
| Feb 29, 1:37 PM MST | Wind Advisory | GJT | 63 hr |
| Mar 1, 3:03 AM MST | Winter Storm Watch | GJT | 12 hr |
| Mar 1, 2:31 PM MST | High Wind Warning | GJT | 36 hr |
| Mar 1, 2:39 PM MST | Winter Storm Warning | GJT | 66 hr |
| Mar 1, 2:39 PM MST | Winter Weather Advisory | GJT | 56 hr |
| Mar 11, 1:42 PM MDT | Winter Weather Advisory | GJT | 64 hr |
| Mar 13, 3:22 AM MDT | Winter Weather Advisory | GJT | 59 hr |
| Mar 15, 2:23 PM MDT | Winter Weather Advisory | GJT | 43 hr |
| Mar 23, 3:07 AM MDT | Winter Weather Advisory | GJT | 51 hr |
| Mar 27, 8:43 AM MDT | Dense Fog Advisory | GJT | 61 min |
| Mar 28, 2:07 PM MDT | Winter Weather Advisory | GJT | 4 days |
| Mar 29, 2:44 PM MDT | Wind Advisory | GJT | 29 hr |
| Apr 3, 1:29 PM MDT | High Wind Watch | GJT | 25 hr |
| Apr 4, 2:24 PM MDT | High Wind Warning | GJT | 30 hr |
| Apr 4, 2:24 PM MDT | Wind Advisory | GJT | 31 hr |
| Apr 5, 2:34 AM MDT | Winter Weather Advisory | GJT | 55 hr |
| Apr 5, 2:24 PM MDT | Freeze Watch | GJT | 24 hr |
| Apr 6, 2:28 AM MDT | Wind Advisory | GJT | 19 hr |
| Apr 6, 2:15 PM MDT | Freeze Warning | GJT | 20 hr |
| Apr 25, 2:30 PM MDT | Winter Weather Advisory | GJT | 64 hr |
| Apr 26, 5:58 PM MDT | Special Weather Statement | GJT | 32 min |
| Apr 26, 6:11 PM MDT | Special Weather Statement | GJT | 34 min |
| Apr 26, 6:30 PM MDT | Special Weather Statement | GJT | 30 min |
| May 3, 2:42 PM MDT | High Wind Watch | GJT | 25 hr |
| May 4, 3:23 PM MDT | High Wind Warning | GJT | 33 hr |
| May 4, 3:23 PM MDT | Wind Advisory | GJT | 33 hr |
| May 6, 2:44 PM MDT | Freeze Watch | GJT | 24 hr |
| May 6, 2:44 PM MDT | Wind Advisory | GJT | 30 hr |
| May 7, 2:15 PM MDT | Freeze Warning | GJT | 18 hr |
| May 11, 4:07 PM MDT | Special Weather Statement | GJT | 23 min |
| May 12, 4:43 PM MDT | Special Weather Statement | GJT | 32 min |
| May 12, 4:53 PM MDT | Severe Thunderstorm Warning | GJT | 37 min |
| May 14, 3:55 PM MDT | Special Weather Statement | GJT | 35 min |
| May 14, 6:26 PM MDT | Special Weather Statement | GJT | 34 min |
| May 25, 4:47 PM MDT | Special Weather Statement | GJT | 43 min |
| Jun 14, 2:25 PM MDT | Fire Weather Watch | GJT | 12 hr |
| Jun 14, 3:20 PM MDT | Special Weather Statement | GJT | 25 min |
| Jun 14, 3:56 PM MDT | Special Weather Statement | GJT | 34 min |
| Jun 15, 2:33 AM MDT | Red Flag Warning | GJT | 43 hr |
| Jun 15, 2:33 AM MDT | Red Flag Warning | GJT | 67 hr |
| Jun 18, 2:21 PM MDT | Fire Weather Watch | GJT | 16 hr |
| Jun 20, 2:13 AM MDT | Flood Watch | GJT | 44 hr |
| Jun 20, 12:09 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 12:20 PM MDT | Special Weather Statement | GJT | 25 min |
| Jun 20, 1:11 PM MDT | Special Weather Statement | GJT | 34 min |
| Jun 20, 2:12 PM MDT | Special Weather Statement | GJT | 33 min |
| Jun 20, 3:18 PM MDT | Special Weather Statement | GJT | 27 min |
| Jun 20, 3:44 PM MDT | Special Weather Statement | GJT | 31 min |
| Jun 20, 4:00 PM MDT | Severe Thunderstorm Warning | GJT | 30 min |
| Jun 20, 4:08 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Jun 21, 11:10 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 12:02 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 21, 1:21 PM MDT | Special Weather Statement | GJT | 24 min |
| Jun 21, 5:48 PM MDT | Severe Thunderstorm Warning | GJT | 27 min |
| Jun 21, 6:14 PM MDT | Severe Thunderstorm Warning | GJT | 16 min |
| Jun 21, 6:27 PM MDT | Severe Thunderstorm Warning | GJT | 33 min |
| Jun 21, 6:28 PM MDT | Special Weather Statement | GJT | 32 min |
| Jun 22, 2:32 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 3:03 PM MDT | Severe Thunderstorm Warning | GJT | 27 min |
| Jun 23, 2:32 PM MDT | Special Weather Statement | GJT | 28 min |
| Jun 26, 1:31 PM MDT | Flood Watch | GJT | 30 hr |
| Jun 26, 3:24 PM MDT | Areal Flood Advisory | GJT | 2 hr |
| Jun 27, 12:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 1:17 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 27, 3:36 PM MDT | Severe Thunderstorm Warning | GJT | 24 min |
| Jun 27, 3:50 PM MDT | Flash Flood Warning | GJT | 3 hr |
| Jun 27, 4:01 PM MDT | Severe Thunderstorm Warning | GJT | 29 min |
| Jun 27, 4:12 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jun 27, 4:15 PM MDT | Severe Thunderstorm Warning | GJT | 30 min |
| Jun 27, 4:26 PM MDT | Flash Flood Warning | GJT | 2 hr |
| Jun 27, 4:33 PM MDT | Areal Flood Warning | GJT | 115 min |
| Jun 27, 4:40 PM MDT | Severe Thunderstorm Warning | GJT | 35 min |
| Jun 27, 4:44 PM MDT | Flash Flood Warning | GJT | 102 min |
| Jun 27, 4:56 PM MDT | Special Weather Statement | GJT | 34 min |
| Jun 27, 5:00 PM MDT | Areal Flood Warning | GJT | 88 min |
| Jun 27, 5:05 PM MDT | Areal Flood Advisory | GJT | 109 min |
| Jun 27, 5:25 PM MDT | Areal Flood Advisory | GJT | 65 min |
| Jun 29, 2:23 AM MDT | Areal Flood Advisory | GJT | 3 hr |
| Jun 29, 12:26 PM MDT | Special Weather Statement | GJT | 34 min |
| Jun 29, 2:02 PM MDT | Flood Watch | GJT | 52 hr |
| Jun 30, 2:07 PM MDT | Special Weather Statement | GJT | 23 min |
| Jun 30, 2:29 PM MDT | Areal Flood Advisory | GJT | 97 min |
| Jun 30, 2:30 PM MDT | Special Weather Statement | GJT | 30 min |
| Jun 30, 2:55 PM MDT | Special Weather Statement | GJT | 35 min |
| Jun 30, 4:45 PM MDT | Special Weather Statement | GJT | 30 min |
| Jul 1, 5:10 PM MDT | Special Weather Statement | GJT | 35 min |
| Jul 1, 10:46 PM MDT | Special Weather Statement | GJT | 29 min |
| Jul 10, 2:47 AM MDT | Heat Advisory | GJT | 5 days |
| Jul 14, 4:30 AM MDT | Red Flag Warning | GJT | 17 hr |
| Jul 14, 8:04 PM MDT | Special Weather Statement | GJT | 26 min |
| Jul 14, 8:29 PM MDT | Special Weather Statement | GJT | 31 min |
| Jul 15, 11:15 PM MDT | Areal Flood Advisory | GJT | 5 hr |
| Jul 16, 3:32 PM MDT | Areal Flood Advisory | GJT | 118 min |
| Jul 18, 6:36 PM MDT | Areal Flood Advisory | GJT | 54 min |
| Jul 20, 3:01 PM MDT | Special Weather Statement | GJT | 29 min |
| Jul 25, 8:29 PM MDT | Special Weather Statement | GJT | 31 min |
| Jul 26, 2:06 PM MDT | Special Weather Statement | GJT | 24 min |
| Jul 27, 1:30 AM MDT | Fire Weather Watch | GJT | 12 hr |
| Jul 27, 6:05 AM MDT | Special Weather Statement | GJT | 25 min |
| Jul 27, 1:06 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 1:08 PM MDT | Red Flag Warning | GJT | 31 hr |
| Jul 27, 1:20 PM MDT | Flash Flood Warning | GJT | 83 min |
| Aug 5, 2:35 PM MDT | Special Weather Statement | GJT | 25 min |
| Aug 7, 5:39 PM MDT | Special Weather Statement | GJT | 36 min |
| Aug 9, 4:29 PM MDT | Areal Flood Advisory | GJT | 2 hr |
| Aug 9, 5:00 PM MDT | Special Weather Statement | GJT | 30 min |
| Aug 9, 5:07 PM MDT | Areal Flood Advisory | GJT | 113 min |
| Aug 9, 5:34 PM MDT | Areal Flood Advisory | GJT | 80 min |
| Aug 9, 6:43 PM MDT | Areal Flood Advisory | GJT | 2 hr |
| Aug 10, 12:48 PM MDT | Special Weather Statement | GJT | 27 min |
| Aug 10, 1:15 PM MDT | Special Weather Statement | GJT | 30 min |
| Aug 10, 1:27 PM MDT | Flash Flood Warning | GJT | 2 hr |
| Aug 10, 8:31 PM MDT | Special Weather Statement | GJT | 29 min |
| Aug 10, 9:07 PM MDT | Flash Flood Warning | GJT | 24 min |
| Aug 11, 9:21 AM MDT | Flood Watch | GJT | 12 hr |
| Aug 11, 2:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 11, 3:53 PM MDT | Special Weather Statement | GJT | 37 min |
| Aug 11, 5:36 PM MDT | Special Weather Statement | GJT | 24 min |
| Aug 11, 5:58 PM MDT | Special Weather Statement | GJT | 32 min |
| Aug 11, 7:41 PM MDT | Flash Flood Warning | GJT | 77 min |
| Aug 12, 2:32 PM MDT | Special Weather Statement | GJT | 28 min |
| Aug 12, 11:57 PM MDT | Special Weather Statement | GJT | 33 min |
| Aug 13, 12:40 AM MDT | Special Weather Statement | GJT | 35 min |
| Aug 17, 8:27 PM MDT | Special Weather Statement | GJT | 33 min |
| Aug 21, 1:56 PM MDT | Flood Watch | GJT | 34 hr |
| Aug 21, 9:49 PM MDT | Special Weather Statement | GJT | 26 min |
| Aug 21, 10:25 PM MDT | Special Weather Statement | GJT | 35 min |
| Aug 23, 7:28 PM MDT | Special Weather Statement | GJT | 32 min |
| Aug 23, 10:46 PM MDT | Special Weather Statement | GJT | 29 min |
| Aug 23, 11:14 PM MDT | Special Weather Statement | GJT | 31 min |
| Aug 24, 1:15 AM MDT | Special Weather Statement | GJT | 30 min |
| Aug 24, 6:46 PM MDT | Special Weather Statement | GJT | 29 min |
| Aug 25, 1:22 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 3:10 PM MDT | Special Weather Statement | GJT | 50 min |
| Aug 25, 3:57 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Aug 25, 4:20 PM MDT | Severe Thunderstorm Warning | GJT | 25 min |
| Aug 25, 4:27 PM MDT | Special Weather Statement | GJT | 33 min |
| Aug 25, 5:32 PM MDT | Special Weather Statement | GJT | 28 min |
| Aug 25, 6:08 PM MDT | Special Weather Statement | GJT | 37 min |
| Aug 25, 6:42 PM MDT | Special Weather Statement | GJT | 33 min |
| Aug 25, 6:46 PM MDT | Special Weather Statement | GJT | 29 min |
| Aug 25, 11:58 PM MDT | Special Weather Statement | GJT | 32 min |
| Sep 10, 1:48 PM MDT | Fire Weather Watch | GJT | 13 hr |
| Sep 11, 2:23 AM MDT | Red Flag Warning | GJT | 42 hr |
| Sep 16, 12:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 17, 8:33 AM MDT | Special Weather Statement | GJT | 27 min |
| Oct 27, 3:03 PM MDT | Winter Weather Advisory | GJT | 3 days |
| Oct 28, 12:57 PM MDT | Freeze Watch | GJT | 24 hr |
| Oct 29, 1:01 PM MDT | Freeze Warning | GJT | 21 hr |
| Oct 29, 1:01 PM MDT | Freeze Warning | GJT | 45 hr |
| Oct 31, 2:09 PM MDT | Freeze Warning | GJT | 20 hr |
| Nov 2, 3:00 PM MDT | Winter Weather Advisory | GJT | 45 hr |
| Nov 5, 2:29 AM MST | Winter Weather Advisory | GJT | 63 hr |
| Nov 15, 12:38 AM MST | Wind Advisory | GJT | 16 hr |
| Nov 24, 2:10 PM MST | Winter Storm Watch | GJT | 12 hr |
| Nov 25, 1:52 AM MST | Winter Storm Warning | GJT | 60 hr |
| Nov 26, 1:44 AM MST | Winter Weather Advisory | GJT | 34 hr |
| Nov 27, 9:59 AM MST | Dense Fog Advisory | GJT | 93 min |
| Dec 25, 2:15 PM MST | Winter Weather Advisory | GJT | 64 hr |
| Dec 27, 2:45 AM MST | Dense Fog Advisory | GJT | 8 hr |
| Dec 28, 2:52 AM MST | Dense Fog Advisory | GJT | 9 hr |
| Dec 29, 2:38 AM MST | Dense Fog Advisory | 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 | |
| Severe Thunderstorm Warning | 11 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 60 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 7 |
| Flood Watch | 5 |
| Areal Flood Advisory | 13 |
| Winter | |
| Snow Squall Warning | 2 |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 19 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 3 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 4 |
| 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 archive20232025
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.