Alert archive / Colorado / Boulder County / 2021
Weather alerts in Boulder County, Colorado, July 2021
20 weather alerts in July 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 20
- Warnings
- 2
- Watches
- 5
- Advisories
- 11
- Busiest day
- July 31, 20218 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Jul 1, 8:46 AM MDT | Flash Flood Watch | BOU | 12 hr |
| Jul 1, 2:52 PM MDT | Areal Flood Advisory | BOU | 83 min |
| Jul 1, 3:17 PM MDT | Areal Flood Advisory | BOU | 88 min |
| Jul 1, 3:36 PM MDT | Special Weather Statement | BOU | 24 min |
| Jul 1, 4:03 PM MDT | Areal Flood Advisory | BOU | 87 min |
| Jul 5, 3:13 AM MDT | Flash Flood Watch | BOU | 21 hr |
| Jul 6, 9:08 PM MDT | Areal Flood Advisory | BOU | 52 min |
| Jul 21, 3:18 AM MDT | Flash Flood Watch | BOU | 17 hr |
| Jul 22, 2:15 PM MDT | Flash Flood Watch | BOU | 30 hr |
| Jul 23, 2:30 PM MDT | Special Weather Statement | BOU | 30 min |
| Jul 25, 7:10 PM MDT | Areal Flood Advisory | BOU | 95 min |
| Jul 29, 2:03 PM MDT | Flash Flood Watch | BOU | 55 hr |
| Jul 30, 6:01 PM MDT | Areal Flood Advisory | BOU | 59 min |
| Jul 30, 7:35 PM MDT | Areal Flood Advisory | BOU | 70 min |
| Jul 30, 7:52 PM MDT | Areal Flood Advisory | BOU | 83 min |
| Jul 30, 9:34 PM MDT | Areal Flood Advisory | BOU | 56 min |
| Jul 30, 10:18 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Jul 31, 3:29 PM MDT | Areal Flood Advisory | BOU | 91 min |
| Jul 31, 3:37 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Jul 31, 3:51 PM MDT | Areal Flood Advisory | BOU | 84 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 11 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.