Alert archive / Colorado / Park County
Weather alerts in Park County, Colorado, 2018
111 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Park County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 111
- Warnings
- 43
- Watches
- 21
- Advisories
- 39
- Busiest month
- July22 alerts
- Busiest day
- July 23, 20188 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Park County in 2018 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.
Park County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 2 | 0% | |
| Severe thunderstorm warnings | 9 | 1 | 89% | 2 | 50% | 12 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Denver/Boulder, CO: tornado warnings | 52 | 11 | 79% | 36 | 53% | 12 min |
| NWS Denver/Boulder, CO: severe thunderstorm warnings | 322 | 114 | 65% | 369 | 75% | 20 min |
| NWS Denver/Boulder, CO: flash flood warnings | 13 | 3 | 77% | 14 | 79% | 32 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 6, 3:35 AM MST | Winter Weather Advisory | BOU | 25 hr |
| Jan 9, 4:19 AM MST | Winter Weather Advisory | BOU | 44 hr |
| Jan 11, 10:44 AM MST | Winter Weather Advisory | BOU | 28 hr |
| Jan 19, 1:54 PM MST | Winter Storm Watch | BOU | 16 hr |
| Jan 20, 5:24 AM MST | Winter Storm Warning | BOU | 36 hr |
| Jan 30, 7:05 PM MST | High Wind Warning | BOU | 8 hr |
| Feb 2, 4:13 PM MST | Winter Weather Advisory | BOU | 43 hr |
| Feb 4, 2:26 PM MST | Winter Weather Advisory | BOU | 37 hr |
| Feb 5, 4:32 PM MST | Winter Storm Warning | BOU | 11 hr |
| Feb 6, 3:16 AM MST | Winter Weather Advisory | BOU | 7 hr |
| Feb 9, 3:18 PM MST | Winter Weather Advisory | BOU | 26 hr |
| Feb 9, 5:37 PM MST | Dense Fog Advisory | BOU | 3 hr |
| Feb 14, 3:19 AM MST | Winter Storm Warning | BOU | 39 hr |
| Feb 15, 3:52 PM MST | High Wind Watch | BOU | 17 hr |
| Feb 16, 9:13 AM MST | High Wind Warning | BOU | 49 hr |
| Feb 18, 2:01 PM MST | Winter Weather Advisory | BOU | 34 hr |
| Mar 3, 3:03 PM MST | Winter Weather Advisory | BOU | 41 hr |
| Mar 3, 3:17 PM MST | Red Flag Warning | BOU | 28 hr |
| Mar 15, 3:45 AM MDT | Winter Weather Advisory | BOU | 25 hr |
| Mar 15, 3:54 AM MDT | High Wind Watch | BOU | 11 hr |
| Mar 17, 2:40 PM MDT | Winter Weather Advisory | BOU | 37 hr |
| Mar 22, 4:43 AM MDT | Winter Weather Advisory | BOU | 37 hr |
| Mar 25, 4:16 AM MDT | Red Flag Warning | BOU | 14 hr |
| Mar 26, 4:27 AM MDT | Winter Weather Advisory | BOU | 24 hr |
| Apr 2, 1:46 PM MDT | High Wind Warning | BOU | 21 hr |
| Apr 3, 2:55 PM MDT | Red Flag Warning | BOU | 24 hr |
| Apr 5, 4:01 AM MDT | Winter Weather Advisory | BOU | 44 hr |
| Apr 7, 4:26 AM MDT | Winter Storm Warning | BOU | 29 hr |
| Apr 10, 3:44 AM MDT | Red Flag Warning | BOU | 39 hr |
| Apr 10, 3:44 AM MDT | Red Flag Warning | BOU | 65 hr |
| Apr 11, 3:08 PM MDT | Winter Weather Advisory | BOU | 54 hr |
| Apr 16, 3:45 AM MDT | Red Flag Warning | BOU | 42 hr |
| Apr 17, 4:58 AM MDT | High Wind Warning | BOU | 16 hr |
| Apr 18, 8:27 PM MDT | Red Flag Warning | BOU | 24 hr |
| Apr 19, 4:41 AM MDT | Winter Storm Watch | BOU | 11 hr |
| Apr 19, 3:14 PM MDT | Winter Storm Warning | BOU | 28 hr |
| Apr 19, 3:14 PM MDT | Winter Weather Advisory | BOU | 44 hr |
| Apr 29, 2:53 PM MDT | Red Flag Warning | BOU | 28 hr |
| May 2, 4:56 AM MDT | Winter Weather Advisory | BOU | 31 hr |
| May 8, 2:43 PM MDT | Fire Weather Watch | BOU | 13 hr |
| May 9, 3:50 AM MDT | Red Flag Warning | BOU | 39 hr |
| May 9, 2:13 PM MDT | Fire Weather Watch | BOU | 25 hr |
| May 10, 3:29 PM MDT | Red Flag Warning | BOU | 28 hr |
| May 11, 10:58 PM MDT | Dense Fog Advisory | BOU | 10 hr |
| May 13, 12:22 AM MDT | Dense Fog Advisory | BOU | 9 hr |
| May 18, 3:48 AM MDT | Winter Storm Watch | BOU | 11 hr |
| May 18, 11:02 AM MDT | Flash Flood Watch | BOU | 30 hr |
| May 18, 2:29 PM MDT | Winter Weather Advisory | BOU | 13 hr |
| May 19, 1:18 PM MDT | Special Weather Statement | BOU | 42 min |
| May 24, 2:39 PM MDT | Fire Weather Watch | BOU | 36 hr |
| May 25, 2:49 PM MDT | Fire Weather Watch | BOU | 12 hr |
| May 26, 2:33 AM MDT | Red Flag Warning | BOU | 18 hr |
| May 26, 2:33 AM MDT | Red Flag Warning | BOU | 42 hr |
| May 28, 1:14 PM MDT | Areal Flood Advisory | BOU | 91 min |
| May 28, 1:52 PM MDT | Severe Thunderstorm Warning | BOU | 23 min |
| May 28, 3:25 PM MDT | Severe Thunderstorm Warning | BOU | 50 min |
| May 31, 6:20 PM MDT | Red Flag Warning | BOU | 27 hr |
| Jun 8, 3:17 PM MDT | Fire Weather Watch | BOU | 18 hr |
| Jun 9, 9:00 AM MDT | Red Flag Warning | BOU | 37 hr |
| Jun 14, 3:27 AM MDT | Red Flag Warning | BOU | 17 hr |
| Jun 21, 2:58 PM MDT | Fire Weather Watch | BOU | 12 hr |
| Jun 22, 2:37 AM MDT | Red Flag Warning | BOU | 17 hr |
| Jun 26, 2:53 PM MDT | Fire Weather Watch | BOU | 13 hr |
| Jun 27, 3:39 AM MDT | Red Flag Warning | BOU | 42 hr |
| Jun 28, 4:37 AM MDT | Fire Weather Watch | BOU | 10 hr |
| Jun 28, 2:42 PM MDT | Red Flag Warning | BOU | 28 hr |
| Jun 30, 9:08 AM MDT | Red Flag Warning | BOU | 9 hr |
| Jul 3, 4:03 AM MDT | Red Flag Warning | BOU | 16 hr |
| Jul 5, 10:16 AM MDT | Flash Flood Watch | BOU | 9 hr |
| Jul 5, 1:33 PM MDT | Tornado Warning | BOU | 27 min |
| Jul 5, 1:34 PM MDT | Flash Flood Warning | BOU | 66 min |
| Jul 5, 2:37 PM MDT | Areal Flood Advisory | BOU | 83 min |
| Jul 15, 4:14 AM MDT | Flash Flood Watch | BOU | 16 hr |
| Jul 15, 3:09 PM MDT | Areal Flood Advisory | BOU | 69 min |
| Jul 16, 7:03 PM MDT | Areal Flood Advisory | BOU | 46 min |
| Jul 22, 5:34 PM MDT | Special Weather Statement | BOU | 26 min |
| Jul 23, 1:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 23, 1:25 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Jul 23, 1:27 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 23, 1:51 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Jul 23, 3:22 PM MDT | Severe Thunderstorm Warning | BOU | 23 min |
| Jul 23, 3:46 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Jul 23, 4:31 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jul 23, 4:46 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Jul 23, 6:37 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 3:28 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jul 24, 5:55 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Jul 25, 1:22 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 25, 5:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 5:08 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Aug 14, 5:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 14, 10:10 PM MDT | Special Weather Statement | BOU | 50 min |
| Aug 17, 1:31 PM MDT | Areal Flood Advisory | BOU | 89 min |
| Aug 26, 3:58 AM MDT | Fire Weather Watch | BOU | 12 hr |
| Aug 26, 3:35 PM MDT | Red Flag Warning | BOU | 26 hr |
| Sep 5, 2:08 AM MDT | Areal Flood Advisory | BOU | 97 min |
| Sep 5, 2:36 PM MDT | Areal Flood Advisory | BOU | 69 min |
| Sep 27, 4:01 PM MDT | Fire Weather Watch | BOU | 19 hr |
| Sep 28, 10:32 AM MDT | Red Flag Warning | BOU | 32 hr |
| Oct 9, 3:24 PM MDT | Winter Weather Advisory | BOU | 30 hr |
| Oct 10, 2:24 PM MDT | Winter Weather Advisory | BOU | 34 hr |
| Oct 12, 2:20 PM MDT | Winter Weather Advisory | BOU | 49 hr |
| Oct 29, 3:56 AM MDT | Winter Weather Advisory | BOU | 50 hr |
| Nov 1, 3:02 PM MDT | Winter Weather Advisory | BOU | 49 hr |
| Nov 3, 3:32 PM MDT | Winter Weather Advisory | BOU | 44 hr |
| Nov 10, 4:18 AM MST | Winter Weather Advisory | BOU | 44 hr |
| Nov 16, 10:36 AM MST | Winter Weather Advisory | BOU | 34 hr |
| Nov 21, 2:50 PM MST | Winter Storm Watch | BOU | 25 hr |
| Nov 22, 3:49 PM MST | Winter Storm Warning | BOU | 58 hr |
| Dec 18, 10:08 AM MST | Winter Weather Advisory | BOU | 31 hr |
| Dec 30, 1:56 PM MST | Winter Weather Advisory | BOU | 27 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 | 9 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 3 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 28 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 22 |
| Fire Weather Watch | 10 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.