Alert archive / Colorado / Weld County
Weather alerts in Weld County, Colorado, 1999
63 weather alerts in 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Weld County and its neighbors
Each county as a circle sized by its count in 1999. Tap one for its archive.
- Alerts
- 63
- Warnings
- 54
- Watches
- 9
- Advisories
- 0
- Busiest month
- September27 alerts
- Busiest day
- September 3, 199913 alerts
Over time
By month
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 |
|---|---|---|---|
| May 3, 4:45 AM MDT | Flash Flood Warning | BOU | 75 min |
| May 3, 11:05 AM MDT | Flash Flood Warning | BOU | 7 hr |
| May 5, 9:28 AM MDT | Flash Flood Warning | BOU | 6 hr |
| May 15, 8:28 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| May 22, 2:00 PM MDT | Tornado Watch | SPC | 7 hr |
| May 22, 3:23 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| May 22, 3:53 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| May 22, 5:33 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| May 29, 4:25 PM MDT | Severe Thunderstorm Warning | BOU | 40 min |
| May 30, 2:35 PM MDT | Tornado Warning | BOU | 25 min |
| May 30, 3:00 PM MDT | Tornado Watch | SPC | 6 hr |
| May 31, 3:00 PM MDT | Tornado Watch | SPC | 6 hr |
| May 31, 3:04 PM MDT | Severe Thunderstorm Warning | BOU | 26 min |
| May 31, 3:24 PM MDT | Severe Thunderstorm Warning | BOU | 36 min |
| May 31, 3:55 PM MDT | Severe Thunderstorm Warning | BOU | 50 min |
| Jun 10, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 12:50 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 1:44 PM MDT | Severe Thunderstorm Warning | BOU | 46 min |
| Jun 12, 2:57 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| Jun 12, 3:29 PM MDT | Severe Thunderstorm Warning | BOU | 46 min |
| Jun 14, 3:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 3:21 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jun 17, 5:01 PM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Jun 23, 9:58 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jun 26, 3:30 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 27, 10:33 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| Jun 27, 11:43 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Jul 19, 4:30 PM MDT | Flash Flood Warning | BOU | 60 min |
| Jul 19, 6:38 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Jul 24, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Jul 24, 6:18 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| Aug 4, 12:59 PM MDT | Tornado Warning | BOU | 31 min |
| Aug 10, 4:46 PM MDT | Tornado Warning | BOU | 29 min |
| Aug 10, 5:15 PM MDT | Tornado Warning | BOU | 45 min |
| Aug 10, 6:00 PM MDT | Tornado Warning | BOU | 20 min |
| Aug 10, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | 63 min |
| Sep 1, 2:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 1, 2:12 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| Sep 1, 2:45 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Sep 1, 3:14 PM MDT | Tornado Warning | BOU | 31 min |
| Sep 1, 4:40 PM MDT | Tornado Warning | BOU | 30 min |
| Sep 1, 5:11 PM MDT | Severe Thunderstorm Warning | BOU | 49 min |
| Sep 1, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | 36 min |
| Sep 2, 4:43 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Sep 2, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Sep 2, 5:31 PM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Sep 2, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Sep 2, 6:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Sep 2, 6:15 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Sep 2, 6:52 PM MDT | Tornado Warning | BOU | 38 min |
| Sep 2, 7:30 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Sep 2, 7:46 PM MDT | Tornado Warning | BOU | 44 min |
| Sep 2, 8:02 PM MDT | Severe Thunderstorm Warning | BOU | 43 min |
| Sep 2, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Sep 3, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | 43 min |
| Sep 3, 4:15 PM MDT | Tornado Watch | SPC | 6 hr |
| Sep 3, 4:29 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Sep 3, 5:13 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Sep 3, 5:25 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Sep 3, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Sep 3, 6:32 PM MDT | Severe Thunderstorm Warning | BOU | 43 min |
| Sep 3, 7:08 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Sep 3, 8:00 PM MDT | Severe Thunderstorm Warning | BOU | 45 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 | |
| Severe Thunderstorm Warning | 41 |
| Tornado Warning | 9 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 5 |
| Flooding | |
| Flash Flood Warning | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive19982000
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.