Alert archive / South Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 33, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 20, 1997, 1:47 AM MDT for Stanley County, South Dakota. 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
- Jun 20, 1997, 1:47 AM MDT (07:47 UTC)
- Expired
- Jun 20, 1997, 2:15 AM MDT
- In force
- 28 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Stanley County, SD
The radar
The Rapid City radar (KUDX), 170 km from the middle of the area, began a volume at 07:49 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 11:00 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 00:00Z, 7.8 hours before the alert went out and 175 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
- 967 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1078 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KABR 200747 RRA
SVRABR
SDC017-069-117-200815-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
247 AM CDT (147 AM MDT) FRI JUN 20 1997
* SEVERE THUNDERSTORM WARNING FOR
SOUTHERN STANLEY COUNTY - CENTRAL SOUTH DAKOTA
BUFFALO COUNTY - CENTRAL SOUTH DAKOTA
SOUTHERN HYDE COUNTY - CENTRAL SOUTH DAKOTA
* UNTIL 215 AM MDT (315 AM CDT)
* SOME LOCATIONS AFFECTED
FORT THOMPSON AND STEPHAN AROUND 252 AM CDT
GANN VALLEY AROUND 315 AM CDT
STANLEY AND JONES COUNTY LINE THROUGH 315 AM CDT
* AT 145 AM MDT (245 AM CDT)...ABERDEEN DOPPLER RADAR AND SPOTTER
REPORTS INDICATED 24 MILES NORTHWEST OF CHAMBERLAIN OR 8 MILES
WEST OF FORT THOMPSON MOVING EAST AT 55 MPH.
DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!
HG/LVQWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 19, 7:41 PM MDT, 6 hours 6 minutes earlier.
Area forecast discussion, Jun 19, 7:41 PM MDT, 6 hours 6 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD AND FOR TRAVERSE/BIG STONE COUNTIES OF MN NATIONAL WEATHER SERVICE ABERDEEN SD 845 PM CDT THU JUN 19 1997 THUNDERSTORM STILL A POSSIBILITY IN NORTHEAST SD AND WEST CENTRAL MN THRU THE REST OF THE EVENING. ELSEWHERE...THUNDERSTORM THREAT APPEARS TO HAVE ENDED ACROSS OUR CWA. WILL UPDATE OUR ZONES TO REFLECT THIS AND MAKE A FEW COSMETIC CHANGES. .ABR...NONE TALLMAN
In the hours before
Special weather statement, Jun 20, 12:18 AM MDT, 1 hour 29 minutes before
MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-201120- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 118 AM CDT (1218 AM MDT) FRI JUN 20 1997 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR CENTRAL SOUTH DAKOTA UNTIL 500 AM CDT... ...SEVERE THUNDERSTORM WATCH FOR BIG STONE AND TRAVERSE COUNTY HAS EXPIRED... STRONG TO SEVERE THUNDERSTORM ARE POSSIBLE THROUGH THE EARLY MORNING HOURS FOR CENTRAL SOUTH DAKOTA. SOME OF THESE STORMS MAY PRODUCE LARGE HAIL AND DAMAGING WINDS. HG
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 8:47 PM MDT | Severe Thunderstorm Warning | ABR | Roberts | 48 min |
| Jun 19, 9:34 PM MDT | Severe Thunderstorm Warning | ABR | Lyman | 46 min |
| Jun 19, 10:03 PM MDT | Severe Thunderstorm Warning | ABR | Buffalo | 62 min |
| Jun 19, 10:22 PM MDT | Severe Thunderstorm Warning | ABR | Lyman | 48 min |
| Jun 19, 10:41 PM MDT | Severe Thunderstorm Warning | ABR | Hand | 49 min |
| Jun 20, 12:13 AM MDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 32 min |
| Jun 20, 12:34 AM MDT | Severe Thunderstorm Warning | ABR | Stanley | 31 min |
| Jun 20, 12:53 AM MDT | Severe Thunderstorm Warning | ABR | Jones | 47 min |
| Jun 20, 12:54 AM MDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 46 min |
| Jun 20, 1:05 AM MDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 45 min |
| Jun 20, 1:22 AM MDT | Severe Thunderstorm Warning | ABR | Jones | 33 min |
| Jun 20, 1:47 AM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Hyde | 28 min |
| Jun 20, 1:52 AM MDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 63 min |
| Jun 20, 1:55 AM MDT | Severe Thunderstorm Warning | ABR | Jones | 65 min |
| Jun 20, 2:14 AM MDT | Severe Thunderstorm Warning | ABR | Buffalo | 31 min |
| Jun 20, 2:56 AM MDT | Severe Thunderstorm Warning | ABR | Lyman | 49 min |
| Jun 20, 3:05 AM MDT | Severe Thunderstorm Warning | ABR | Jones | 65 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1997Every severe thunderstorm warning in 1997
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.