Alert archive / South Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 176, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 24, 2002, 7:05 PM CDT for Davison County, Hanson County, South Dakota. It was in force for 40 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 24, 2002, 7:05 PM CDT (00:05 UTC)
- Expired
- Jul 24, 2002, 7:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
Counties Davison County, SD, Hanson County, SD
The radar
The Sioux Falls radar (KFSD), 101 km from the middle of the area, began a volume at 00:04 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 |
|---|---|---|---|
| Jul 24, 7:15 PM CDT | Hail 1 | Loomis, SD | |
| Jul 24, 7:25 PM CDT | Hail 1.75 | Letcher, SD | Wind driven large hail damaged a few vehicles and knocked down tree branches. The amount of damage was not known. |
| Jul 24, 7:27 PM CDT | Hail 2.5 | Mitchell, SD | Large hail caused severe damage to numerous vehicles, including many at car dealerships. Damage also occurred to windows, siding, and shingles on buildings. The hail caused damage to greens at a municipal golf course. |
| Jul 24, 7:47 PM CDT | Hail 0.75 | Fulton, SD | |
| Jul 24, 7:47 PM CDT | Hail 1.75 | Mitchell, 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 |
|---|---|---|---|
| Jul 24, 4:50 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.1 hours before the alert went out and 130 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
- 2473 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1734 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 14.5
The text
As transmitted, in the capitals the NWS used until 2016.
032
WUUS53 KFSD 250005
SVRFSD
SDC035-061-250045-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
705 PM CDT WED JUL 24 2002
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEAST DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA
HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA
* UNTIL 745 PM CDT
* AT 705 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 8 MILES NORTH OF LOOMIS...OR ABOUT 14 MILES
NORTHWEST OF MITCHELL...MOVING SOUTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LOOMIS AROUND 710 PM CDT
MITCHELL AROUND 720 PM CDT
FULTON AROUND 735 PM CDT
ALEXANDRIA...FARMER AROUND 745 PM CDT
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE AREA. SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO
MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
LAT...LON 4384 9806 4384 9823 4357 9786 4371 9766
4384 9788The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 7:17 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 13 min |
| Jul 24, 7:21 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 39 min |
| Jul 24, 7:36 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 39 min |
| Jul 24, 7:46 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson | 29 min |
| Jul 24, 7:52 PM CDT | Tornado Warning | FSD | McCook | 23 min |
| Jul 24, 8:04 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 56 min |
| Jul 24, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 34 min |
| Jul 24, 8:14 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 31 min |
| Jul 24, 8:21 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 24 min |
| Jul 24, 8:22 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 53 min |
| Jul 24, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 36 min |
| Jul 24, 8:46 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 44 min |
| Jul 24, 8:51 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 24 min |
| Jul 24, 9:06 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 24 min |
| Jul 24, 9:15 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix | 30 min |
| Jul 24, 9:43 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 47 min |
| Jul 24, 10:23 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 37 min |
| Jul 24, 10:57 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 33 min |
| Jul 25, 1:38 AM CDT | Severe Thunderstorm Warning | FSD | Union | 27 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2002Every severe thunderstorm warning in 2002
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.