Alert archive / South Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 118, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 16, 1997, 6:46 PM MDT for Stanley County, South Dakota. It was in force for 64 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
- Jul 16, 1997, 6:46 PM MDT (00:46 UTC)
- Expired
- Jul 16, 1997, 7:50 PM MDT
- In force
- 64 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 00:47 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, 0.8 hours before the alert went out and 193 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
- 1702 J/kg
- Mixed-layer CIN
- -198 J/kg
- Mixed-layer LCL
- 2085 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What 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 Jul 16, 10:55 AM MDT, 7 hours 51 minutes earlier.
Area forecast discussion, Jul 16, 10:55 AM MDT, 7 hours 51 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD AND FOR TRAVERSE/BIG STONE COUNTIES OF MN NATIONAL WEATHER SERVICE ABERDEEN SD 1140 AM CDT WED JUL 16 1997 HAVE UPDATED ZONES TO ADJUST WINDS...REMOVE CHANCE OF TSTMS TODAY IN NORTH CENTRAL SD...AND ADD SLIGHT CHANCE OF STORMS LATE AFTERNOON IN FAR ERN SD AND WEST CENTRAL MINN. MESO-HIGH OVER ABR/ATY AT 15/16Z APPEARS TO BE MOVING SOUTHEAST OUT OF AREA...WHILE WEAK LOW PRESSURE PERSISTS OVER CENTRAL SD. VARIABLE WINDS SHOULD SLOWLY BECOME SOUTH OR SOUTHEAST DURING AFTERNOON IN ERN ZONES AS HIGH MOVES OUT. AS FOR CONVECTION...BEST CHANCE LATE THIS AFTERNOON IN FAR ERN ZONES AS WEAK SHORTWAVE CROSSING WRN SD MOVES EAST INTO AREA OF HIGH DEWPOINTS. ALSO...WK SFC TROF DRIFTING EAST ACROSS SD WILL HELP LOW-LEVEL MOISTURE CONVERGENCE IN ERN ZONES. .ABR...NONE MIDDLEBROOKE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 6:02 PM MDT | Severe Thunderstorm Warning | ABR | Sully | 48 min |
| Jul 16, 6:24 PM MDT | Tornado Warning | ABR | Hughes | 46 min |
| Jul 16, 6:53 PM MDT | Severe Thunderstorm Warning | ABR | Sully | 47 min |
| Jul 16, 7:05 PM MDT | Tornado Warning | ABR | Hughes | 35 min |
| Jul 16, 7:13 PM MDT | Tornado Warning | ABR | Potter | 47 min |
| Jul 16, 7:21 PM MDT | Severe Thunderstorm Warning | ABR | Hyde | 49 min |
| Jul 16, 7:52 PM MDT | Severe Thunderstorm Warning | ABR | Faulk | 63 min |
| Jul 16, 7:59 PM MDT | Severe Thunderstorm Warning | ABR | Day | 46 min |
| Jul 16, 8:47 PM MDT | Tornado Warning | ABR | Day | 48 min |
| Jul 16, 8:55 PM MDT | Severe Thunderstorm Warning | ABR | Faulk | 50 min |
| Jul 16, 9:16 PM MDT | Severe Thunderstorm Warning | ABR | Clark, Spink | 49 min |
| Jul 16, 9:32 PM MDT | Severe Thunderstorm Warning | ABR | Day | 33 min |
| Jul 16, 10:06 PM MDT | Severe Thunderstorm Warning | ABR | Clark, Day, Spink | 64 min |
| Jul 16, 10:32 PM MDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 63 min |
| Jul 16, 10:40 PM MDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 55 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.