Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 111, NWS Aberdeen, SD

August 11, 1995Brown County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 11, 1995, 1:56 AM CDT for Brown County, South Dakota. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1995, 1:56 AM CDT (06:56 UTC)
Expired
Aug 11, 1995, 2:45 AM CDT
In force
49 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Brown County, SD

The radar

The Aberdeen radar (KABR), 16 km from the middle of the area, began a volume at 06:56 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, 6.9 hours before the alert went out and 77 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 1995-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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 1995-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939587897Sfc1 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
131 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1884 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 11, 1:07 AM CDT, 49 minutes before
MNZ046-SDZ003>011-015>018-110910-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
107 AM CDT (1207 AM MDT) FRI AUG 11 1995

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
EFFECTIVE UNTIL 7 AM CDT (6 AM MDT) FOR ALL OF NORTH CENTRAL AND
NORTHEAST SOUTH DAKOTA EXCEPT FOR WESTERN CORSON COUNTY. IN
ADDITION...WESTERN BIG STONE COUNTY OF WEST CENTRAL MINNESOTA IS
INCLUDED IN THE WATCH. CITIES INCLUDED IN THE WATCH INCLUDE
LA PLANT...MOBRIDGE...GETTYSBURG...FAULKTON...ABERDEEN...REDFIELD
AND SISSETON.

IF YOU ARE IN OR CLOSE TO THE WATCH AREA...WATCH FOR THREATENING
WEATHER AND LISTEN TO WEATHER RADIO OR YOUR LOCAL RADIO OR
TELEVISION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.

MIDDLEBROOKE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 12:31 AM CDTSevere Thunderstorm WarningABRDewey43 min
Aug 11, 1:37 AM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Potter, Walworth33 min
Aug 11, 2:06 AM CDTSevere Thunderstorm WarningABREdmunds, Faulk34 min
Aug 11, 2:16 AM CDTSevere Thunderstorm WarningABRBrown, Spink59 min
Aug 11, 3:48 AM CDTSevere Thunderstorm WarningABRRoberts47 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.