Alert archive / South Dakota / Tornado Warnings in 1987
Tornado Warning 8, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jul 6, 1987, 7:09 PM CDT for Buffalo County, South Dakota. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Jul 6, 1987, 7:09 PM CDT (00:09 UTC)
- Expired
- Jul 6, 1987, 7:45 PM CDT
- In force
- 36 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Buffalo County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 0.2 hours before the alert went out and 112 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
- 2161 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1688 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHON 070009 TORHON SDC017-070045- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HURON SD 709 PM CDT MON JUL 6 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF CENTRAL SOUTH DAKOTA...SOUTHERN BUFFALO THIS WARNING INCLUDES THE ADJACENT WATERS OF THE MISSOURI RIVER. SOME OF THE CITIES INCLUDED IN THIS WARNING ARE SHELBY...AND GANNVALLEY. AT 654 PM CDT A TORNADO WAS REPORTED 13 MILES NORTH OF OACOMA... OR ABOUT 50 MILES SOUTHEAST OF PIERRE. DAMAGE HAS BEEN REPORTED MOVEMENT WAS EAST AT 12 MILES AN HOUR. IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD^ GO TO A BASEMENT SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR A REINFORCED BUILDING. KRAUSE
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Jul 6, 7:05 PM CDT, 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
705 PM CDT MON JUL 6 1987
TIME EVENT AND LOCATION.
450 PM CDT MARBLE SIZE HAIL WITH SOME TO ONE INCH AT GETTYSBURG
IN POTTER COUNTY.
505 PM CDT MARBLE SIZE HAIL AT SELBY IN WALWORTH COUNTY.
525 PM CDT MARBLE SIZE HAIL AT TOLSTOY AND HOVEN IN POTTER
COUNTY.
550 PM CDT MARBLE SIZE HAIL AT EUREKA IN MCPHERSON COUNTY.
625 PM CDT GOLFWBALL SIZE HAIL NEAR ONAKA IN FAULK COUNTY.
615 PM CDT MARBLE SIZE HAIL AT SENECA IN FAULK COUNTY.
STUDNICKAThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:22 PM CDT | Severe Thunderstorm Warning | ABR | Jerauld | 68 min |
| Jul 6, 7:28 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 62 min |
| Jul 6, 7:46 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 59 min |
| Jul 6, 7:49 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 56 min |
| Jul 6, 8:06 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 64 min |
| Jul 6, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Jerauld | 59 min |
| Jul 6, 9:52 PM CDT | Severe Thunderstorm Warning | ABR | Miner | 68 min |
| Jul 6, 10:54 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Hamlin | 66 min |
Nearby
Tornado Warnings in South Dakota, 1987Every tornado warning in 1987Tornadoes in 1987
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.