Alert archive / Montana / Valley County
Weather alerts in Valley County, Montana, 1999
29 weather alerts in 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Valley County and its neighbors
Each county as a circle sized by its count in 1999. Tap one for its archive.
- Alerts
- 29
- Warnings
- 22
- Watches
- 7
- Advisories
- 0
- Busiest month
- July18 alerts
- Busiest day
- July 22, 19997 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 |
|---|---|---|---|
| Jun 8, 12:43 AM MDT | Flash Flood Warning | GGW | 6 hr |
| Jun 11, 12:15 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 4:45 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 10:30 PM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jun 21, 5:30 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 21, 6:51 PM MDT | Severe Thunderstorm Warning | GGW | 59 min |
| Jun 21, 7:40 PM MDT | Tornado Warning | GGW | 65 min |
| Jun 25, 3:24 AM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jun 25, 4:30 AM MDT | Severe Thunderstorm Warning | GGW | 35 min |
| Jun 25, 5:05 AM MDT | Severe Thunderstorm Warning | GGW | 60 min |
| Jul 7, 6:15 PM MDT | Tornado Watch | SPC | 6 hr |
| Jul 7, 6:24 PM MDT | Severe Thunderstorm Warning | GGW | 61 min |
| Jul 7, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | 57 min |
| Jul 12, 5:29 PM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jul 17, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 20, 2:15 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 4:14 PM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jul 21, 4:45 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 7:03 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 21, 7:34 PM MDT | Tornado Warning | GGW | 66 min |
| Jul 21, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | 64 min |
| Jul 21, 9:01 PM MDT | Severe Thunderstorm Warning | GGW | 64 min |
| Jul 21, 9:42 PM MDT | Severe Thunderstorm Warning | GGW | 33 min |
| Jul 21, 10:23 PM MDT | Severe Thunderstorm Warning | GGW | 62 min |
| Jul 21, 11:27 PM MDT | Severe Thunderstorm Warning | GGW | 33 min |
| Jul 24, 4:30 PM MDT | Tornado Watch | SPC | 7 hr |
| Jul 24, 5:19 PM MDT | Severe Thunderstorm Warning | GGW | 66 min |
| Jul 24, 6:25 PM MDT | Severe Thunderstorm Warning | GGW | 50 min |
| Aug 13, 6:37 PM MDT | Severe Thunderstorm Warning | GGW | 53 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 | 19 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 3 |
| Flooding | |
| Flash Flood Warning | 1 |
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. Warning verification from the Mesonet's Cow. Rebuilt daily.