Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 101, NWS Aberdeen, SD

July 30, 1995Sanborn County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 30, 1995, 10:34 PM CDT for Sanborn County, South Dakota. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Jul 30, 1995, 10:34 PM CDT (03:34 UTC)
Expired
Jul 30, 1995, 11:15 PM CDT
In force
41 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 120 km from the middle of the area, began a volume at 03:35 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 00:00Z, 3.6 hours before the alert went out and 101 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-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 1995-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 895 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 1995-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
895 J/kg
Mixed-layer CIN
-198 J/kg
Mixed-layer LCL
1345 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
294 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHON 310335 RRA
SVRHON
SDC111-310415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HURON SD
1034 PM CDT SUN JUL 30 1995
 
THE NATIONAL WEATHER SERVICE IN HURON SD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR THE PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL SOUTH DAKOTA
 
   ...SANBORN COUNTY
 
AT 1030 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM LOCATED 15 MILES
NORTHWEST OF MITCHELL MOVING TO THE NORTHEAST AT 25 MPH. THIS
THUNDERSTORM WILL EFFECT THE COMMUNTITY OF FORESTBURG BY 1045 CDT.
 
 
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A REINFORCED
SHELTER.  A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS VIN EXCESS
OF 55 MPH...3/4 INCH HAIL OR LARGER...DEADLY LIGHTNING...AND VERY
HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 11:11 PM CDTSevere Thunderstorm WarningABRMiner49 min

Nearby

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.