Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 6, NWS Aberdeen, SD

May 22, 1990Day County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 22, 1990, 6:24 PM CDT for Day County, South Dakota. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
May 22, 1990, 6:24 PM CDT (23:24 UTC)
Expired
May 22, 1990, 7:00 PM CDT
In force
36 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Day 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, 11.4 hours before the alert went out and 81 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 12:00Z on 1990-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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 12:00Z on 1990-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
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

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, May 22, 4:03 PM CDT, 2 hours 21 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, 2 hours 11 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.

IssuedProductOfficeCountiesLasted
May 22, 3:18 PM CDTTornado WarningABRBrown27 min
May 22, 5:38 PM CDTSevere Thunderstorm WarningABRMarshall22 min
May 22, 5:38 PM CDTSevere Thunderstorm WarningABRDay67 min
May 22, 6:45 PM CDTSevere Thunderstorm WarningABRGrant60 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.