Alert archive / North Dakota / Slope County
Weather alerts in Slope County, North Dakota, 1999
16 weather alerts in 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Slope County and its neighbors
Each county as a circle sized by its count in 1999. Tap one for its archive.
- Alerts
- 16
- Warnings
- 7
- Watches
- 9
- Advisories
- 0
- Busiest month
- June5 alerts
- Busiest day
- June 21, 19994 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 21, 2:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 4:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 8, 2:30 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 20, 7:50 PM MDT | Severe Thunderstorm Warning | BIS | 55 min |
| Jun 20, 8:00 PM MDT | Tornado Warning | BIS | 45 min |
| Jun 20, 9:00 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 20, 9:34 PM MDT | Severe Thunderstorm Warning | BIS | 26 min |
| Jul 3, 2:16 AM MDT | Severe Thunderstorm Warning | BIS | 49 min |
| Jul 4, 11:10 PM MDT | Severe Thunderstorm Warning | BIS | 50 min |
| Jul 7, 10:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 19, 3:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 8, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 11, 2:30 PM MDT | Tornado Watch | SPC | 7 hr |
| Aug 11, 4:32 PM MDT | Severe Thunderstorm Warning | BIS | 58 min |
| Aug 15, 2:15 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 3:46 PM MDT | Severe Thunderstorm Warning | BIS | 59 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 | 6 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
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.