Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 103, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 6, 1986, 5:06 PM CDT for Hughes County, South Dakota. It was in force for 69 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 6, 1986, 5:06 PM CDT (22:06 UTC)
- Expired
- Aug 6, 1986, 6:15 PM CDT
- In force
- 69 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Hughes County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 6, 5:40 PM CDT | Hail 3.5 | Hughes, SD | |
| Aug 6, 6:08 PM CDT | Hail 1.75 | Hughes, SD |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 10.1 hours before the alert went out and 138 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
- 649 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 970 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 27 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.
In the hours before
Special weather statement, Aug 6, 1:36 PM CDT, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 130 PM CDT WED AUG 6 1986 ...LINE OF INTENSE THUNDERSTORMS MOVING ACROSS NORTH CENTRAL SOUTH DAKOTA... AT 125 PM CDT RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS EXTENDING FROM SOUTHEAST OF BISMARCK NORTH DAKOTA SOUTHWARD TO AKASKA ON THE MISSOURI RIVER SOUTH OF MOBRIDGE MOVING EAST SOUTHEAST AT 30 MPH. THESE THUNDERSTORMS WILL BE MOVING ACROSS THE WEST PORTIONS OF BOTH MCPHERSON AND EDMUNDS COUNTIES OF NORTH CENTRAL SOUTH DAKOTA BETWEEN 145 PM CDT AND 245 PM CDT THIS EARLY WEDNESDAY AFTERNOON. PERIODS OF VERY HEAVY RAIN..SMALL HAIL AND WIND TO 50 MPH CAN BE EXPECTED WITH THE PASAGE OF THESE THUNDERSTORMS. PERSOSNS WITHIN THE PATH SHOULD TAKE CARE AND BE PREPARED TO GO TO A PKACE OF SAFETY. STUDNICKA
Special weather statement, Aug 6, 1:48 PM CDT, 3 hours 18 minutes before
SPECIAL WEATHER STATEMENT...REPEAT FOR WEBSTER STATE RADIO... NATIONAL WEATHER SERVICE ABERDEEN SD 130 PM CDT WED AUG 6 1986 ...LINE OF INTENSE THUNDERSTORMS MOVING ACROSS NORTH CENTRAL SOUTH DAKOTA... AT 125 PM CDT RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS EXTENDING FROM SOUTHEAST OF BISMARCK NORTH DAKOTA SOUTHWARD TO AKASKA ON THE MISSOURI RIVER SOUTH OF MOBRIDGE MOVING EAST SOUTHEAST AT 30 MPH. THESE THUNDERSTORMS WILL BE MOVING ACROSS THE WEST PORTIONS OF BOTH MCPHERSON AND EDMUNDS COUNTIES OF NORTH CENTRAL SOUTH DAKOTA BETWEEN 145 PM CDT AND 245 PM CDT THIS EARLY WEDNESDAY AFTERNOON. PERIODS OF VERY HEAVY RAIN..SMALL HAIL AND WIND TO 50 MPH CAN BE EXPECTED WITH THE PASAGpE OF THESE THUNDERSTORMS. PERSONS WITHIN THE PATH SHOULD TAKE CARE AND BE PREPARED TO GO TO A PKACE OF SAFETY. STUDNICKA
Special weather statement, Aug 6, 3:43 PM CDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 340 PM CDT WED AUG 6 1986 ...TORNADO WATCH FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 900 PM CDT. AT 335 PM CDT RADAR INDICATED A VERY INTENSE THUNDERSTORM IN THE SOUTHEAST PORTION OF DEWEY COUNTY OR 30 MILES WEST OF GETTYSBURG MOVING EAST SOUTHEAST AT 25 MPH. THIS THUNDERSTORM WILL MOVE INTO THE MISSOURI RIVER AREA NEAR THE WHITLOCK CROSSING AREA BETWEEN 415 PM CDT AND 500 PM CDT. BOATERS SHOULD PREPARE TO LEAVE THE WATER AREAS AS SOON AS POSSIBLE DUE TO VERY HEAVY RAIN..SMALL HAIL AND WIND GUST TO NEAR 50 MPH. THIS STORM COULD BECOME SEVERE WITH LITTLE ADVANCED NOTICE, SO BE VERY WATCHFULL. STUDNICKA
Special weather statement, Aug 6, 4:48 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 445 PM CDT WED AUG 6 1986 ...TORNADO WATCH FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 900 PM CDT... ...INTENSE THUNDERSTORMS CONTINUE TO DEVELOPE OVER THE MISSOURI RIVER IN NORTH CENTRAL SOUTH DAKOTA. AT 440 PM CDT RADAR INDICATED INTENSE THUNDERSTORMS EXTENDING FROM THE NORTH DAKOTA BORDOR NEAR POLLOCK IN CAMPBELL COUNTY SOUTH TO THE WHITLOCK CROSSING ON U.S. RT 212 WITH THE ONLY BARRON AREA BEING BETWEEN MOBRIDGE AND AKASKA. ADDITIONAL SHOWERS AND THUNDER/ STORMS IS EXPECTED TO FILL IN THIS VOID WITHIN THE NEXT HOUR. BOATERS SHOULD LEAVE THE WATER AREAS DUE TO PERIODS OF HEAVY RAIN.. SMALL HAIL ANpD WIND GUSTS TO 50 MPH WITH THE PASSAGE OF THESE STORMS. THESE STORMS CONTINUE TO MOVE EAST SOUTHEAST AT 25 MPH AND WILL PASS OVER CAMPBELL..WALWORTH AND POTTER COUNTIES BY 630 PM CDT. STUDNICKA
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:15 PM CDT | Tornado Warning | ABR | Walworth | 30 min |
| Aug 6, 6:38 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 67 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.