Alert archive / South Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Rapid City, SD
NWS Rapid City, SD issued this special weather statement at Jun 14, 2021, 1:07 AM CDT for Tripp County, South Dakota. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 14, 2021, 1:07 AM CDT (06:07 UTC)
- Expired
- Jun 14, 2021, 2:00 AM CDT
- In force
- 53 min
- Issued by
- NWS Rapid City, SD
County Tripp County, SD
The radar
The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 06:08 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
Aberdeen, SD (KABR), launched 00:00Z, 6.1 hours before the alert went out and 218 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
- 2913 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
431
WWUS83 KUNR 140607
SPSUNR
Special Weather Statement
National Weather Service Rapid City SD
107 AM CDT Mon Jun 14 2021
SDZ046-049-140700-
Tripp SD-Mellette SD-
107 AM CDT Mon Jun 14 2021
...STRONG THUNDERSTORM OVER WEST CENTRAL TRIPP AND EAST CENTRAL
MELLETTE COUNTIES...
At 106 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles northeast of Mosher, or 23 miles northwest of Winner, moving
southeast at 25 mph.
Nickel size hail will be possible with this storm.
Locations impacted include...
Carter and Witten.
LAT...LON 4322 10021 4339 10021 4339 10026 4362 10034
4367 10014 4331 9984
TIME...MOT...LOC 0606Z 334DEG 22KT 4358 10022
$$
RudgeThe office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 8:58 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 62 min |
| Jun 13, 10:24 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 29 min |
| Jun 14, 12:45 AM CDT | Special Weather Statement | UNR | Mellette | 30 min |
| Jun 14, 1:48 AM CDT | Special Weather Statement | UNR | Tripp | 57 min |
| Jun 13, 7:00 PM CDT | Severe Thunderstorm Warning | UNR | Weston | 44 min |
| Jun 14, 3:40 PM CDT | Fire Weather Watch | UNR | Campbell, Crook, Weston | 12 hr |
| Jun 14, 6:16 PM CDT | Severe Thunderstorm Warning | UNR | Campbell | 29 min |
| Jun 14, 6:27 PM CDT | Severe Thunderstorm Warning | UNR | Campbell | 48 min |
| Jun 14, 6:44 PM CDT | Severe Thunderstorm Warning | UNR | Campbell | 46 min |
Nearby
Special Weather Statements in South Dakota, 2021Every special weather statement in 2021
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.