Alert archive / Iowa / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 239, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 8, 2000, 2:32 AM CDT for Cherokee County, Iowa. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2000, 2:32 AM CDT (07:32 UTC)
- Expired
- Aug 8, 2000, 3:00 AM CDT
- In force
- 28 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Cherokee County, IA
The radar
The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 07:34 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 7.5 hours before the alert went out and 169 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 3267 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1579 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFSD 080733 SVRFSD IAC035-080800- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 232 AM CDT TUE AUG 8 2000 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CHEROKEE COUNTY IN NORTHWEST IOWA * UNTIL 300 AM CDT * AT 232 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHWEST OF LARRABEE...OR ABOUT 25 MILES EAST OF ORANGE CITY...MOVING EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LARRABEE AROUND 240 AM CDT THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:41 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 34 min |
| Aug 7, 8:13 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 47 min |
| Aug 7, 9:10 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 35 min |
| Aug 7, 9:57 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 33 min |
| Aug 7, 10:29 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 31 min |
| Aug 7, 10:44 PM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 31 min |
| Aug 7, 10:59 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 16 min |
| Aug 7, 11:47 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 28 min |
| Aug 8, 12:18 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 27 min |
| Aug 8, 12:46 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 29 min |
| Aug 8, 1:03 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 42 min |
| Aug 8, 1:16 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 44 min |
| Aug 8, 1:45 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 30 min |
| Aug 8, 2:05 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 40 min |
| Aug 8, 2:41 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 34 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.