Alert archive / South Dakota / Flash Flood Warnings in 1995

Flash Flood Warning 8, NWS Aberdeen, SD

September 2, 1995Marshall County, South Dakota

NWS Aberdeen, SD issued this flash flood warning at Sep 2, 1995, 4:20 AM CDT for Marshall County, South Dakota. It was in force for 75 min.

The area

The counties it named.

The facts

Issued
Sep 2, 1995, 4:20 AM CDT (09:20 UTC)
Expired
Sep 2, 1995, 5:35 AM CDT
In force
75 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Marshall County, SD

The radar

The Aberdeen radar (KABR), 72 km from the middle of the area, began a volume at 09:24 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, 9.3 hours before the alert went out and 114 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 1995-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1342 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 1995-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.19395878Sfc1 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
1342 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1682 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 020922
FFWABR
SDC091-021125-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
420 AM CDT SAT SEP 2 1995

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 625 AM CDT (525 AM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST SOUTH DAKOTA

   ...WESTERN MARSHALL COUNTY
 
AT 420 AM CDT...A SEVERE THUNDERSTORM WAS PRODUCING FLOODING IN THE
BRITTON AREA.  WATER COVERED $ROADS IN THE BRITTON AREA.  TWO INCHES
OF RAIN WERE REPORTED IN BRITTON SINCE 330 AM CDT.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!
BE PREPARED TO MOVE TO HIGHER GROUND!
BE ESPECIALLY CAUTIOUS AT NIGHT!

HG/DK
 

&

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 3:40 AM CDTSevere Thunderstorm WarningABRMarshall60 min
Sep 2, 4:35 AM CDTSevere Thunderstorm WarningABRDay60 min
Sep 2, 4:35 AM CDTSevere Thunderstorm WarningABRMarshall30 min

Nearby

Flash Flood Warnings in South Dakota, 1995Every flash flood 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.