Alert archive / South Dakota / Tornado Warnings in 2001
Tornado Warning 22, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 12, 2001, 6:43 PM CDT for Minnehaha County, South Dakota. It was in force for 32 min. 3 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 12, 2001, 6:43 PM CDT (23:43 UTC)
- Expired
- Jun 12, 2001, 7:15 PM CDT
- In force
- 32 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Minnehaha County, SD
The radar
The Sioux Falls radar (KFSD), 15 km from the middle of the area, began a volume at 23:43 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 12, 6:54 PM CDT | Hail 1 | Crooks, SD | |
| Jun 12, 6:55 PM CDT | Hail 1.75 | Hartford, SD | |
| Jun 12, 6:57 PM CDT | Hail 1 | Crooks, SD |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 12, 6:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.7 hours before the alert went out and 185 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1849 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -101 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFSD 122343 TORFSD SDC099-130015- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 643 PM CDT TUE JUN 12 2001 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA...THIS DOES NOT INCLUDE THE CITY OF SIOUX FALLS. * UNTIL 715 PM CDT * AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 3 MILES SOUTH OF WALL LAKE...OR ABOUT 11 MILES NORTHEAST OF PARKER...MOVING NORTHEAST AT 35 MPH. * THE TORNADO WILL BE NEAR... WALL LAKE AROUND 650 PM CDT CROOKS AROUND 700 PM CDT BALTIC AROUND 715 PM CDT THIS WARNING REPLACES THE SEVERE THTUNDERSTORM WARNING PREVIOUSLY ISSUED FOR THE WARNED AREA. THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. TAKE COVER NOW. LAT...LON 4349 9710 4350 9684 4380 9665 4382 9686
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 5:22 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 23 min |
| Jun 12, 5:58 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Turner | 47 min |
| Jun 12, 6:20 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 40 min |
| Jun 12, 6:48 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 27 min |
Nearby
Tornado Warnings in South Dakota, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.