Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 52, NWS Sioux Falls, SD

June 6, 1986Lincoln County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 6, 1986, 10:44 PM CDT for Lincoln County, South Dakota. It was in force for 36 min.

The area

The counties it named.

The facts

Issued: Jun 6, 1986, 10:44 PM CDT (03:44 UTC)
Expired: Jun 6, 1986, 11:20 PM CDT
In force: 36 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Lincoln 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

Omaha, NE (KOAX), launched 00:00Z, 3.7 hours before the alert went out and 220 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3578 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFSD 070344
SVRFSD
SDC083-070445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1044 PM CDT FRI JUN 6 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

SOUTHEAST SOUTH DAKOTA...LINCOLN

SOME OF THE CITIES INCLUDED IN SOUTHEAST SOUTH DAKOTA ARE CANTON..
LENNOX..AND HARRISBURG.

AT 1040 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM WEST OF SIOUX FALLS TO 40 MILES SOUTHWEST OF
SIOUX FALLS MOVING EAST/SOUTHEAST AT 30 MPH.

IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF
60 MPH..HAIL 3/4 INCH OR LARGER..DEADLY LIGHTNING..AND HEAVY RAIN
THAT CAN QUICKLY FLOOD A LOW LYING AREA.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR
NO ADVANCE WARNING SO BE ON THE LOOKOUT.

RYRHOLM

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 44 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, 2 hours 12 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, 38 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, 10:18 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	57 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1986 Every 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.