Alert archive / Iowa / Sioux County
Weather alerts in Sioux County, Iowa, 1998
26 weather alerts in 1998, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sioux County and its neighbors
Each county as a circle sized by its count in 1998. Tap one for its archive.
- Alerts
- 26
- Warnings
- 11
- Watches
- 15
- Advisories
- 0
- Busiest month
- May7 alerts
- Busiest day
- May 15, 19984 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 29, 2:00 PM CST | Tornado Watch | SPC | 6 hr |
| Apr 12, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 12, 5:45 PM CDT | Severe Thunderstorm Warning | FSD | 30 min |
| May 15, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 15, 11:14 AM CDT | Severe Thunderstorm Warning | FSD | 31 min |
| May 15, 3:00 PM CDT | Tornado Watch | SPC | 6 hr |
| May 15, 4:24 PM CDT | Tornado Warning | FSD | 31 min |
| May 28, 2:30 PM CDT | Severe Thunderstorm Warning | FSD | 35 min |
| May 30, 8:30 PM CDT | Tornado Watch | SPC | 7 hr |
| May 30, 10:08 PM CDT | Severe Thunderstorm Warning | FSD | 32 min |
| Jun 23, 7:30 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 23, 8:39 PM CDT | Tornado Warning | FSD | 31 min |
| Jun 24, 6:30 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 27, 4:00 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 29, 11:15 AM CDT | Tornado Watch | SPC | 6 hr |
| Jul 6, 5:15 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 18, 8:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 18, 9:45 PM CDT | Severe Thunderstorm Warning | FSD | 45 min |
| Jul 21, 6:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 6:16 AM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Aug 20, 5:01 PM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Aug 24, 7:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 24, 9:19 AM CDT | Severe Thunderstorm Warning | FSD | 61 min |
| Aug 24, 9:22 AM CDT | Tornado Warning | FSD | 48 min |
| Sep 25, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 25, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 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 | 8 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive19971999
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.