Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 96, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 18, 1995, 6:29 PM CDT for Bon Homme County, South Dakota. It was in force for 31 min.
The area
The counties it named.
The facts
- Issued
- Aug 18, 1995, 6:29 PM CDT (23:29 UTC)
- Expired
- Aug 18, 1995, 7:00 PM CDT
- In force
- 31 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Bon Homme County, SD
The radar
The Sioux Falls radar (KFSD), 115 km from the middle of the area, began a volume at 23:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 217 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
- 2740 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 121 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 KFSD 182330 RRA SVRFSD SDC009-190000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 629 PM CDT FRI AUG 18 1995 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST SOUTH DAKOTA ...CENTRAL AND NORTHEASTERN BON HOMME COUNTY AT 627 PM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY NATIONAL WEATHER SERVICE DOPPLER RADAR IN SIOUX FALLS 28 MILES WEST OF YANKTON OR NEAR TYNDALL MOVING NORTHEAST AT 25 MPH. THIS STORM CAN BE EXPECTED IN THE VICINITY OF... TYNDALL AROUND 630 PM CDT SCOTLAND AROUND 650 PM CDT LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. CHAPMAN
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 18, 1:00 PM CDT, 5 hours 29 minutes before
SDZ020>023-039-040-054>056-060>062-065>067-068>070-190400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 100 PM CDT FRI AUG 18 1995 ...TORNADO WATCH CANCELLED FOR SOUTH DAKOTA... THE NATIONAL WEATHER SERVICE HAS CANCELLED THE PART OF TORNADO WATCH NUMBER 951 THAT WAS IN EFFECT FOR EAST CENTRAL AND SOUTHEAST SOUTH DAKOTA. SEVERE WEATHER IS NO LONGER A THREAT OVER THE AREA. WILLIAMS
Local storm report, Aug 18, 1:27 PM CDT, 5 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
127 PM CDT FRI AUG 18 1995
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0445 TO 2 E GANN VALLEY SD 50 TO 60 MPH WINDS.
0530 AM 5 S GANN VALLEY TREES DOWN... LARGE
08/18/95 BUFFALO BRANCHES BROKEN OFF
1050 AM 2 SE SPRING LAKE SD 55 TO 70 MPH WINDS.
08/18/95 HYDE DOORS ON BOTH ENDS
OF METAL OUT-BUILDING
BLOWN OFF... METAL
SIDING BLOWN OFF
...JFPLocal storm report, Aug 18, 1:28 PM CDT, 5 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
127 PM CDT FRI AUG 18 1995
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0445 TO 2 E GANN VALLEY SD 50 TO 60 MPH WINDS.
0530 AM 5 S GANN VALLEY TREES DOWN... LARGE
08/18/95 BUFFALO BRANCHES BROKEN OFF
1050 AM 2 SE SPRING LAKE SD 55 TO 70 MPH WINDS.
08/18/95 HYDE DOORS ON BOTH ENDS
OF METAL OUT-BUILDING
BLOWN OFF... METAL
z SIDING BLOWN OFF
...JFPNearby
Severe Thunderstorm Warnings in South Dakota, 1995Every severe thunderstorm warning in 1995
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; radar from the NEXRAD Level II archive.