Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 51, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 6, 1986, 10:18 PM CDT for Lake County, Moody County, South Dakota. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Jun 6, 1986, 10:18 PM CDT (03:18 UTC)
- Expired
- Jun 6, 1986, 11:15 PM CDT
- In force
- 57 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lake County, SD, Moody 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, 3.3 hours before the alert went out and 154 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
- 1880 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 10.7
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, Jun 6, 7:00 PM CDT, 3 hours 18 minutes before
STORM REPORT NATIONAL WEATHER SERVICE HURON SD 659 PM CDT FRI JUN 6 1986 645 PM CDT...5 NW CANNING SD..PEA TO DIME SIZED HAIL.
Local storm report, Jun 6, 8:32 PM CDT, 1 hour 46 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
833 PM CDT FRI JUN 6 1986
717 PM CDT...HARROLD SD..25 MILES ENE OF PIERRE..WINDS EST 50-60MPH
BY RAINFALL SPOTTER.
725 PM CDT...KENNEBEC SD..33 SSE OF PIERRE..WINDS EST 60-70MPH BY
RAINFALL SPOTTER.Local storm report, Jun 6, 10:06 PM CDT, 12 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
1005 PM CDT FRI JUN 6 1986
920 PM CDT...JUNCTION HWY 34 AND 37..NEAR WOONSOCKET..19 MILES SOUTH
OF HURON..DIME SIZE HAIL BY CIVILIAN.The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:22 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 68 min |
| Jun 6, 7:43 PM CDT | Severe Thunderstorm Warning | FSD | Gregory, Tripp | 62 min |
| Jun 6, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 61 min |
| Jun 6, 8:54 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 66 min |
| Jun 6, 9:28 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 62 min |
| Jun 6, 9:57 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 63 min |
| Jun 6, 10:18 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Turner | 57 min |
| Jun 6, 10:44 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 36 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1986Every severe thunderstorm warning in 1986
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.