Alert archive / Colorado / Rio Blanco County
Weather alerts in Rio Blanco County, Colorado, 2025
141 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Rio Blanco County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 141
- Warnings
- 57
- Watches
- 26
- Advisories
- 36
- Busiest month
- September30 alerts
- Busiest day
- September 12, 202511 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Rio Blanco County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 0 | 100% | 1 | 0% | |
| Flash flood warnings | 22 | 9 | 59% | 22 | 64% | 68 min |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Junction, CO: tornado warnings | 5 | 1 | 80% | 3 | 33% | 19 min |
| NWS Grand Junction, CO: severe thunderstorm warnings | 72 | 12 | 83% | 35 | 49% | 16 min |
| NWS Grand Junction, CO: flash flood warnings | 44 | 10 | 77% | 31 | 48% | 73 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 3, 12:21 PM MST | Winter Weather Advisory | GJT | 51 hr |
| Jan 7, 6:42 PM MST | Dense Fog Advisory | GJT | 13 hr |
| Jan 9, 2:11 PM MST | Winter Weather Advisory | GJT | 57 hr |
| Jan 16, 1:56 PM MST | Winter Weather Advisory | GJT | 51 hr |
| Jan 18, 1:36 AM MST | Extreme Cold Watch | GJT | 49 hr |
| Jan 20, 2:06 AM MST | Cold Weather Advisory | GJT | 31 hr |
| Jan 20, 2:06 AM MST | Extreme Cold Warning | GJT | 33 hr |
| Jan 23, 12:36 PM MST | Winter Weather Advisory | GJT | 64 hr |
| Feb 6, 2:01 PM MST | Wind Advisory | GJT | 28 hr |
| Feb 6, 2:17 PM MST | Winter Weather Advisory | GJT | 41 hr |
| Feb 12, 2:48 AM MST | Winter Storm Watch | GJT | 24 hr |
| Feb 13, 2:52 AM MST | Winter Storm Warning | GJT | 63 hr |
| Feb 13, 2:52 AM MST | Winter Weather Advisory | GJT | 48 hr |
| Feb 15, 12:43 PM MST | Winter Storm Watch | GJT | 13 hr |
| Feb 16, 2:11 AM MST | Winter Storm Warning | GJT | 51 hr |
| Feb 16, 2:11 AM MST | Winter Weather Advisory | GJT | 55 hr |
| Mar 2, 1:57 AM MST | Winter Weather Advisory | GJT | 63 hr |
| Mar 5, 1:48 AM MST | Winter Storm Watch | GJT | 12 hr |
| Mar 5, 1:50 PM MST | Wind Advisory | GJT | 30 hr |
| Mar 5, 1:54 PM MST | Winter Storm Warning | GJT | 49 hr |
| Mar 5, 1:54 PM MST | Winter Weather Advisory | GJT | 45 hr |
| Mar 12, 2:39 AM MDT | Winter Weather Advisory | GJT | 63 hr |
| Mar 12, 2:47 PM MDT | Wind Advisory | GJT | 28 hr |
| Mar 17, 3:12 AM MDT | Wind Advisory | GJT | 18 hr |
| Mar 17, 3:12 AM MDT | Winter Weather Advisory | GJT | 51 hr |
| Mar 20, 3:03 PM MDT | Winter Weather Advisory | GJT | 57 hr |
| Mar 30, 3:03 AM MDT | Wind Advisory | GJT | 50 hr |
| Mar 31, 3:37 AM MDT | Winter Weather Advisory | GJT | 49 hr |
| Apr 16, 2:44 PM MDT | Winter Weather Advisory | GJT | 3 days |
| Apr 26, 2:02 PM MDT | Wind Advisory | GJT | 30 hr |
| May 7, 2:54 PM MDT | Special Weather Statement | GJT | 36 min |
| May 11, 12:41 PM MDT | Wind Advisory | GJT | 31 hr |
| May 12, 7:32 AM MDT | Wind Advisory | GJT | 37 hr |
| May 17, 2:19 PM MDT | Winter Weather Advisory | GJT | 40 hr |
| Jun 6, 12:53 PM MDT | Special Weather Statement | GJT | 37 min |
| Jun 14, 2:28 AM MDT | Fire Weather Watch | GJT | 12 hr |
| Jun 14, 2:27 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 15, 2:15 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Jun 15, 1:44 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 18, 1:48 AM MDT | Fire Weather Watch | GJT | 13 hr |
| Jun 18, 2:26 PM MDT | Fire Weather Watch | GJT | 11 hr |
| Jun 18, 2:26 PM MDT | Fire Weather Watch | GJT | 23 hr |
| Jun 18, 2:26 PM MDT | Red Flag Warning | GJT | 30 hr |
| Jun 19, 1:36 AM MDT | Red Flag Warning | GJT | 45 hr |
| Jun 19, 1:34 PM MDT | Wind Advisory | GJT | 32 hr |
| Jun 19, 1:40 PM MDT | Red Flag Warning | GJT | 56 hr |
| Jun 20, 1:41 AM MDT | Fire Weather Watch | GJT | 24 hr |
| Jun 20, 1:29 PM MDT | Wind Advisory | GJT | 33 hr |
| Jun 21, 1:24 AM MDT | Red Flag Warning | GJT | 44 hr |
| Jun 21, 2:40 PM MDT | Wind Advisory | GJT | 27 hr |
| Jun 22, 2:48 PM MDT | Fire Weather Watch | GJT | 11 hr |
| Jun 23, 1:28 AM MDT | Red Flag Warning | GJT | 43 hr |
| Jul 16, 12:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 5:49 PM MDT | Special Weather Statement | GJT | 26 min |
| Jul 25, 2:05 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Jul 25, 1:04 PM MDT | Fire Weather Watch | GJT | 13 hr |
| Jul 25, 1:04 PM MDT | Red Flag Warning | GJT | 31 hr |
| Jul 26, 2:27 AM MDT | Red Flag Warning | GJT | 42 hr |
| Jul 30, 3:35 AM MDT | Fire Weather Watch | GJT | 11 hr |
| Jul 30, 2:07 PM MDT | Red Flag Warning | GJT | 30 hr |
| Aug 1, 3:33 AM MDT | Red Flag Warning | GJT | 15 hr |
| Aug 1, 1:22 PM MDT | Red Flag Warning | GJT | 30 hr |
| Aug 2, 1:26 PM MDT | Fire Weather Watch | GJT | 24 hr |
| Aug 3, 1:18 PM MDT | Fire Weather Watch | GJT | 13 hr |
| Aug 3, 1:18 PM MDT | Red Flag Warning | GJT | 32 hr |
| Aug 4, 1:48 AM MDT | Red Flag Warning | GJT | 42 hr |
| Aug 4, 1:33 PM MDT | Red Flag Warning | GJT | 54 hr |
| Aug 5, 2:15 AM MDT | Fire Weather Watch | GJT | 12 hr |
| Aug 5, 2:25 PM MDT | Red Flag Warning | GJT | 54 hr |
| Aug 5, 2:25 PM MDT | Red Flag Warning | GJT | 3 days |
| Aug 7, 1:21 PM MDT | Red Flag Warning | GJT | 55 hr |
| Aug 12, 2:12 PM MDT | Fire Weather Watch | GJT | 23 hr |
| Aug 12, 2:12 PM MDT | Fire Weather Watch | GJT | 48 hr |
| Aug 12, 2:12 PM MDT | Red Flag Warning | GJT | 30 hr |
| Aug 13, 1:05 PM MDT | Red Flag Warning | GJT | 31 hr |
| Aug 16, 1:36 PM MDT | Flash Flood Warning | GJT | 114 min |
| Aug 22, 3:16 PM MDT | Special Weather Statement | GJT | 29 min |
| Aug 24, 11:17 AM MDT | Special Weather Statement | GJT | 13 min |
| Aug 24, 12:17 PM MDT | Flash Flood Warning | GJT | 118 min |
| Aug 24, 1:43 PM MDT | Areal Flood Advisory | GJT | 83 min |
| Aug 25, 6:59 AM MDT | Flash Flood Warning | GJT | 91 min |
| Aug 25, 2:42 PM MDT | Flood Watch | GJT | 35 hr |
| Aug 26, 4:59 AM MDT | Flash Flood Warning | GJT | 66 min |
| Aug 26, 1:04 PM MDT | Flash Flood Warning | GJT | 3 hr |
| Aug 26, 1:51 PM MDT | Flash Flood Warning | GJT | 3 hr |
| Aug 27, 5:36 PM MDT | Flash Flood Warning | GJT | 3 hr |
| Aug 28, 2:35 PM MDT | Special Weather Statement | GJT | 25 min |
| Aug 28, 2:51 PM MDT | Flash Flood Warning | GJT | 114 min |
| Aug 28, 3:03 PM MDT | Special Weather Statement | GJT | 27 min |
| Sep 4, 1:28 PM MDT | Flash Flood Warning | GJT | 2 hr |
| Sep 6, 12:48 PM MDT | Flash Flood Warning | GJT | 117 min |
| Sep 7, 5:50 PM MDT | Flash Flood Warning | GJT | 91 min |
| Sep 7, 8:34 PM MDT | Severe Thunderstorm Warning | GJT | 26 min |
| Sep 9, 12:52 PM MDT | Flash Flood Warning | GJT | 113 min |
| Sep 10, 12:50 PM MDT | Flood Watch | GJT | 59 hr |
| Sep 11, 2:44 PM MDT | Flash Flood Warning | GJT | 2 hr |
| Sep 12, 9:16 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 9:42 AM MDT | Special Weather Statement | GJT | 33 min |
| Sep 12, 10:15 AM MDT | Severe Thunderstorm Warning | GJT | 30 min |
| Sep 12, 10:20 AM MDT | Special Weather Statement | GJT | 25 min |
| Sep 12, 10:39 AM MDT | Special Weather Statement | GJT | 36 min |
| Sep 12, 10:45 AM MDT | Severe Thunderstorm Warning | GJT | 30 min |
| Sep 12, 11:15 AM MDT | Special Weather Statement | GJT | 30 min |
| Sep 12, 11:42 AM MDT | Flash Flood Warning | GJT | 3 hr |
| Sep 12, 3:36 PM MDT | Severe Thunderstorm Warning | GJT | 24 min |
| Sep 12, 3:59 PM MDT | Special Weather Statement | GJT | 46 min |
| Sep 12, 4:13 PM MDT | Flash Flood Warning | GJT | 70 min |
| Sep 13, 3:25 AM MDT | Flood Watch | GJT | 21 hr |
| Sep 13, 12:04 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 13, 1:42 PM MDT | Flash Flood Warning | GJT | 93 min |
| Sep 13, 2:11 PM MDT | Special Weather Statement | GJT | 34 min |
| Sep 13, 2:23 PM MDT | Flash Flood Warning | GJT | 112 min |
| Sep 16, 3:40 PM MDT | Special Weather Statement | GJT | 35 min |
| Sep 16, 4:50 PM MDT | Flash Flood Warning | GJT | 85 min |
| Sep 22, 3:15 PM MDT | Flash Flood Warning | GJT | 3 hr |
| Sep 22, 4:02 PM MDT | Flash Flood Warning | GJT | 4 hr |
| Sep 22, 4:39 PM MDT | Severe Thunderstorm Warning | GJT | 36 min |
| Sep 22, 4:55 PM MDT | Special Weather Statement | GJT | 35 min |
| Sep 28, 7:34 PM MDT | Flash Flood Warning | GJT | 86 min |
| Sep 30, 6:11 PM MDT | Special Weather Statement | GJT | 34 min |
| Oct 4, 8:51 AM MDT | Special Weather Statement | GJT | 24 min |
| Oct 4, 11:51 AM MDT | Special Weather Statement | GJT | 24 min |
| Oct 4, 12:42 PM MDT | Flash Flood Warning | GJT | 2 hr |
| Oct 6, 12:59 AM MDT | Freeze Watch | GJT | 17 hr |
| Oct 6, 5:37 PM MDT | Freeze Warning | GJT | 16 hr |
| Oct 8, 1:27 PM MDT | Flood Watch | GJT | 4 days |
| Oct 12, 1:52 AM MDT | Special Weather Statement | GJT | 38 min |
| Oct 13, 10:45 PM MDT | Areal Flood Advisory | GJT | 3 hr |
| Oct 15, 2:30 PM MDT | Freeze Watch | GJT | 12 hr |
| Oct 16, 2:32 AM MDT | Freeze Warning | GJT | 30 hr |
| Oct 17, 7:41 PM MDT | Freeze Warning | GJT | 13 hr |
| Oct 18, 3:23 PM MDT | Freeze Warning | GJT | 18 hr |
| Oct 20, 2:24 PM MDT | Freeze Warning | GJT | 19 hr |
| Nov 16, 1:51 AM MST | Winter Weather Advisory | GJT | 39 hr |
| Nov 20, 3:37 AM MST | Dense Fog Advisory | GJT | 4 min |
| Nov 29, 12:23 PM MST | Winter Weather Advisory | GJT | 42 hr |
| Dec 4, 2:00 AM MST | Winter Storm Watch | GJT | 13 hr |
| Dec 4, 2:39 PM MST | Winter Storm Warning | GJT | 62 hr |
| Dec 17, 3:02 AM MST | Wind Advisory | GJT | 23 hr |
| Dec 19, 1:54 AM MST | Winter Weather Advisory | GJT | 43 hr |
| Dec 26, 2:04 AM MST | Winter Weather Advisory | GJT | 56 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 | 5 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 19 |
| Flooding | |
| Flash Flood Warning | 22 |
| Flood Watch | 4 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 19 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 5 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 2 |
| Cold Weather Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 12 |
| Fire | |
| Red Flag Warning | 20 |
| Fire Weather Watch | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.