Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 151, NWS Aberdeen, SD

August 25, 1990Campbell County, McPherson County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 25, 1990, 10:35 PM CDT for Campbell County, McPherson County, South Dakota. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Aug 25, 1990, 10:35 PM CDT (03:35 UTC)
Expired
Aug 25, 1990, 11:00 PM CDT
In force
25 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Campbell County, SD, McPherson County, SD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 3.6 hours before the alert went out and 137 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 1990-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4027 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 1990-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
4027 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1709 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 260335
SVRABR
SDC021-089-260430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ABERDEEN SD
1035 PM CDT SAT AUG 25 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1130 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF SOUTH DAKOTA
      CAMPBELL...WESTERN MCPHERSON

SOME OF THE CITIES INCLUDED IN THIS WARNING ARE EUREKA...ARTAS...
POLLOCK.

AT 1030 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR HERRIED..
30 MILES NORTHEAST OF MOBRIDGE...AND NEAR EUREKA...45 MILES
NORTHEAST OF MOBRIDGE...MOVING NORTHEAST AT 20 MPH.

 AT 1030 PM CDT LAW ENFORCEMENT REPORTED MARBLE SIZE HAIL ON THE
WEST EDGE OF EUREKA.

IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF
60 MPH..HAIL 3/4 INCH OR LARGER..DEADLY LIGHTNING..AND HEAVY RAIN
THAT CAN QUICKLY FLOOD A LOW LYING AREA.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR
NO ADVANCE WARNING SO BE ON THE LOOKOUT.

KEEFE

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 25, 5:45 PM CDT, 4 hours 50 minutes before
SDZ004-005-252345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
544 PM CDT SAT AUG 25 1990

...ISOLATED THUNDERSTORM IN MARSHALL AND WESTERN ROBERTS COUNTIES...

AT 540 PM CDT RADAR INDICATED AN ISOLATED THUNDERSTORM IN EASTERN
MARSHALL COUNTY NEAR BRITTON 45 MILES EAST OF ABERDEEN TO THE NORTH
DAKOTA/SOUTH DAKOTA BOARDER IN NORTHWESTERN ROBERTS COUNTY NEAR CLAIRE
CITY 75 MILES NORTHEAST OF ABERDEEN. MOVEMENT WAS NORTHEAST AT 20 MPH.

THIS STORM CAN PRODUCE SMALL HAIL...STRONG WINDS...DANGEROUS LIGHTNING.

HAVE A PLAN TO INSURE YOUR SAFETY. LISTEN TO THE RADIO FOR FURTHER
DEVELOPMENTS.

ADDISON
Special weather statement, Aug 25, 8:28 PM CDT, 2 hours 7 minutes before
SDZ004-011-260220-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
825 PM CDT SAT AUG 25 1990

...SEVERE THUNDERSTORM WARNING FOR EDMUNDS COUNTY UNTIL 845 PM CDT...
...SEVERE THUNDERSTORM WATCH UNTIL 1 AM CDT...

AT 820 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS WITH VERY HEAVY
RAIN IN SPINK COUNTY FROM NEAR VERDON...25 MILES SOUTHEAST OF ABERDEEN
TO NEAR ROCKHAM...45 MILES SOUTHWEST OF ABERDEEN MOVING NORTHEAST AT
25 MPH.

THESE STORMS WILL PRODUCE HEAVY RAIN AND SMALL HAIL. ALSO SPOTTERS
REPORT VERY FREQUENT DANGEROUS LIGHTNING.

IF YOU LIVE IN SPINK COUNTY...BE ALERT TO THE WEATHER AND DO WHAT IS
NECCESSARY TO INSURE YOUR SAFETY...AND LISTEN FOR LATER STATEMENTS.

KEEFE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 7:06 PM CDTSevere Thunderstorm WarningABRHughes, Sully54 min
Aug 25, 7:12 PM CDTSevere Thunderstorm WarningABRSully63 min
Aug 25, 7:38 PM CDTSevere Thunderstorm WarningABREdmunds67 min
Aug 25, 7:52 PM CDTSevere Thunderstorm WarningABRHughes, Hyde68 min
Aug 25, 8:04 PM CDTTornado WarningABRHughes26 min
Aug 25, 8:49 PM CDTSevere Thunderstorm WarningABREdmunds31 min
Aug 25, 8:53 PM CDTSevere Thunderstorm WarningABRLyman52 min
Aug 25, 8:59 PM CDTSevere Thunderstorm WarningABRFaulk, Spink41 min
Aug 25, 9:17 PM CDTSevere Thunderstorm WarningABRBrown, Day33 min
Aug 25, 9:33 PM CDTSevere Thunderstorm WarningABRCampbell57 min
Aug 25, 9:43 PM CDTSevere Thunderstorm WarningABRHand, Hyde62 min
Aug 25, 9:52 PM CDTSevere Thunderstorm WarningABRCodington, Hamlin68 min
Aug 25, 9:54 PM CDTSevere Thunderstorm WarningABRDay36 min
Aug 25, 9:57 PM CDTSevere Thunderstorm WarningABRHyde63 min
Aug 26, 2:43 AM CDTSevere Thunderstorm WarningABRCorson62 min
Aug 26, 2:54 AM CDTSevere Thunderstorm WarningABRCorson, Dewey66 min
Aug 26, 3:49 AM CDTSevere Thunderstorm WarningABRCampbell, Walworth56 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990

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.