Alert archive / South Dakota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 37, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 9, 1987, 6:12 PM CDT for Edmunds County, Faulk County, Walworth County, South Dakota. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Jul 9, 1987, 6:12 PM CDT (23:12 UTC)
- Expired
- Jul 9, 1987, 7:15 PM CDT
- In force
- 63 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Edmunds County, SD, Faulk County, SD, Walworth 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 12:00Z, 11.2 hours before the alert went out and 95 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
- 854 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Local storm report, Jul 9, 4:53 PM CDT, 1 hour 19 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
450 PM CDT THU JUL 9 1987
TIME: EVENT AND AREA:
230 PM MDT VERY HEAVY RAIN AND MARBLE SIZE HAIL AT GLEN CROSS
IN DEWEY COUNTY.
430 PM CDT FUNNEL CLOUD OVER MOBRIDGE SOUTH DAKOTA IN WALWORTH
COUNTY AS REPORTED BY CIVIL DEFENSE.
415 PM CDT GOLFBALL HAIL ALONG WITH 50 KNOT WIND AT THE WATER
PLANT (WEATHER OBSERVER) AT MOBRIDGE.
435 PM CDT TORNADO 5 MILES SOUTH OF MOBRIDGE REPORTED BY STATE
POLICE.
STUDNICKALocal storm report, Jul 9, 6:05 PM CDT, 7 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
600 PM CDT THU JUL 9 1987
TIME: EVENT AND PLACE:
515 PM CDT 16 MILES SOUTHWEST OF GETTYSBURY IN POTTER COUNTY.
.98 INCH OF RAIN IN 20 MINUTES WITH PEA SIZE HAIL
COVERING THE GROUND.
537 PM CDT HOVEN S.D. IN POTTER COUNTY. VERY HEAVY RAIN.
540 PM CDT 16 MILES SOUTH OF LONG LAKE IN MCPHERSON COUNTY THE
PUBLIC REPORTED A FUNNEL CLOUD TO THE ABERDEEN P.D.
STUDNICKAThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 2:12 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 63 min |
| Jul 9, 3:21 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 69 min |
| Jul 9, 4:01 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Walworth | 59 min |
| Jul 9, 4:30 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 60 min |
| Jul 9, 4:33 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 57 min |
| Jul 9, 4:59 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley | 61 min |
| Jul 9, 5:05 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Potter, Walworth | 55 min |
| Jul 9, 5:26 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 64 min |
| Jul 9, 5:52 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 68 min |
| Jul 9, 6:05 PM CDT | Tornado Warning | ABR | Hyde, Sully | 40 min |
| Jul 9, 6:36 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 69 min |
| Jul 9, 6:55 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 65 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1987Every severe thunderstorm warning 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.