Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 115, NWS Sioux Falls, SD

September 2, 1995Minnehaha County, Moody County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Sep 2, 1995, 8:07 AM CDT for Minnehaha County, Moody County, South Dakota. It was in force for 24 min.

The area

The counties it named.

The facts

Issued: Sep 2, 1995, 8:07 AM CDT (13:07 UTC)
Expired: Sep 2, 1995, 8:31 AM CDT
In force: 24 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Minnehaha County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 29 km from the middle of the area, began a volume at 13:09 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, 1.1 hours before the alert went out and 177 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: 841 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 620 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 021307 RRA
SVRFSD
SDC099-101-021355-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
807 AM CDT SAT SEP 2 1995

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 855 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEAST SOUTH DAKOTA

   ...NORTHERN MINNEHAHA COUNTY

IN EAST CENTRAL SOUTH DAKOTA

   ...SOUTHERN MOODY COUNTY
 
AT 805 AM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY SIOUX FALLS
DOPPLER RADAR 16 MILES WEST OF PIPESTONE  OR 3 MILES SOUTH OF EGAN
MOVING SOUTHEAST AT 34 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
TRENT                    AROUND 811 AM CDT
SHERMAN                  AROUND 831 AM CDT
GARRETSON                AROUND 836 AM CDT
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG...REINFORCED BUILDING.  DAMAGING WIND...LARGE HAIL...VERY
HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE
THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

MED

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 2, 5:20 AM CDT	Severe Thunderstorm Warning	FSD	Clark	30 min
Sep 2, 5:56 AM CDT	Severe Thunderstorm Warning	FSD	Clark	52 min
Sep 2, 6:25 AM CDT	Severe Thunderstorm Warning	FSD	Hamlin	30 min
Sep 2, 6:54 AM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	40 min
Sep 2, 7:58 AM CDT	Severe Thunderstorm Warning	FSD	McCook	47 min
Sep 2, 8:40 AM CDT	Severe Thunderstorm Warning	FSD	Turner	45 min
Sep 2, 9:20 AM CDT	Severe Thunderstorm Warning	FSD	Yankton	41 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1995 Every 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.