Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Aberdeen, SD

May 22, 1990Marshall County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 22, 1990, 5:38 PM CDT for Marshall County, South Dakota. It was in force for 22 min.

The area

The counties it named.

The facts

Issued: May 22, 1990, 5:38 PM CDT (22:38 UTC)
Expired: May 22, 1990, 6:00 PM CDT
In force: 22 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Marshall 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 12:00Z, 10.6 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-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: 28 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 77 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 KABR 222238
SVRABR
SDC091-037-222345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ABERDEEN SD
538 PM CDT TUE MAY 22 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHEAST PART OF SOUTH DAKOTA
      SOUTHWEST MARSHALL...NORTHWEST DAY

SOME OF THE CITIES INCLUDED IN THIS WARNING ARE LANGFORD...PIERPONT
...AND ANDOVER.

AT 535 PM CDT  RADAR INDICATED A SEVERE THUNDERSTORM NEAR LANGFORD
...35 MILES NORTHEAST OF ABERDEEN...MOVING SOUTHEAST AT 20 MPH.

 AT 535 PM CDT THE PUBLIC REPORTED 1 INCH HAIL IN LANGFORD.

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, May 22, 4:03 PM CDT, 1 hour 35 minutes before

SDZ004-005-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
403 PM CDT TUE MAY 22 1990

...SEVERE THUNDERSTORM WATCH UNTIL 9 PM CDT FOR PARTS OF EASTRN SD...

AT 400 PM CDT RADAR INDICATED INTENSE THUNDERSTORMS WITH VERY HEAVY
RAIN WERE MOVING SOUTH INTO MARSHALL COUNTY NEAR BRITTON...45 MILES
NORTHEAST OF ABERDEEN...MOVING SOUTH AT AROUND 10 MPH.

IF YOU LIVE IN MARSHALL COUNTY YOU SHOULD BE ALERT TO THE WEATHER
AS THESE SVTORMS MOVE PAST.

KEEFE

Local storm report, May 22, 4:13 PM CDT, 1 hour 25 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
412 PM CDT TUE MAY 22 1990

STORM DATA FOR MAY 22 1990

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.........................h..............................................

 310 PM CDT     BROWN COUNTY..ABERDEEN     FUNNEL CLOUD REPORTED BY
                                           CIVIL DEFENSE DIRECTOR.

 KEEFE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 3:18 PM CDT	Tornado Warning	ABR	Brown	27 min
May 22, 5:38 PM CDT	Severe Thunderstorm Warning	ABR	Day	67 min
May 22, 6:24 PM CDT	Severe Thunderstorm Warning	ABR	Day	36 min
May 22, 6:45 PM CDT	Severe Thunderstorm Warning	ABR	Grant	60 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990 Every 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.