Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 14, NWS Aberdeen, SD

May 17, 2000Stanley County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 17, 2000, 4:45 AM MDT for Stanley County, South Dakota. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 17, 2000, 4:45 AM MDT (10:45 UTC)
Expired: May 17, 2000, 5:15 AM MDT
In force: 30 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Stanley County, SD

The radar

The Rapid City radar (KUDX), 170 km from the middle of the area, began a volume at 10:46 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

Rapid City, SD (KUNR), launched 00:00Z, 10.8 hours before the alert went out and 175 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2099 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 285 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

618 
WUUS53 KABR 171052
SVRABR
SDC117-171115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...RETRANSMISSION FOR WX RADIO
NATIONAL WEATHER SERVICE ABERDEEN SD
545 AM CDT WED MAY 17 2000

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  STANLEY COUNTY IN SOUTH DAKOTA

* UNTIL 615 AM CDT

* AT 545 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER LYMAN COUNTY...OR ABOUT 13 MILES SOUTH OF
  FORT PIERRE...MOVING NORTHEAST AT 20 MPH.

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF QUARTERS

STAY AWAY FROM WINDOWS.

LORENS

NNNN

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.

NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 2:45 AM MDT, 2 hours earlier.

Area forecast discussion, May 17, 2:45 AM MDT, 2 hours before

AREA FORECAST DISCUSSION FOR CENTRAL/NORTHCENTRAL AND NORTHEAST
SOUTH DAKOTA AND WEST CENTRAL MINNESOTA
NATIONAL WEATHER SERVICE ABERDEEN SD
345 AM CDT WED MAY 17 2000

LITTLE TIME THIS MORNING...BUT MAIN CHALLENGES TODAY WILL BE WINDS
AND POPS. MODELS IN GENERAL AGREEMENT ON OVERALL TRENDS...THOUGH
SPEED DIFFERENCES NOTED ESPECIALLY 36 HRS AND BEYOND. POSITION AND
STRENGTH OF SFC LOW MOVING EASTWARD TO SOUTH OF AREA SIMILAR. FOLLOWED
A GENERAL AVN/ETA BLEND FOR DETAILS TODAY AND THURSDAY. BEST CHANCES
FOR PRECIP SEEN ACROSS SOUTHERN TIER OF COUNTIES TODAY AND TONIGHT.
MODEL QPF PATTERNS VARY ON AMOUNTS...BUT REMARKABLY SIMILAR IN
GENERAL PATTERNS AND LOCATION OF MAXIMA. APPEARS BEST PRECIP AMOUNTS
WILL BE MOSTLY SOUTH OF OUR AREA. HAVE TONED DOWN POPS A
BIT...ESPECIALLY NE COUNTIES WHERE NONE OF THE MODELS PRODUCE ANY
MEASURABLE PRECIP. 88D CURRENTLY SHOWS GENERAL SHOWERS WITH A FEW
THUNDERSTORMS WESTERN COUNTIES BUT NOTHING ATTM EASTERN 2/3 OF CWA.
WILL LIKELY MAKE MINOR ADJUSTMENTS OF WORDING TO WESTERN ZONES
BEFORE FINAL ZONE ISSUANCE. THAT SAID...FOCUS SHIFTS TO WINDS. AVN
SHOWS A WEAKER SFC GRADIENT THAN ETA...BUT ETA SEEMED TO INITIALIZE
A BIT BETTER ON SFC PATTERN. IN ADDITION...ABR 88D VAD WIND PROFILE
SHOWS 30 KTS AT 2-3 KFT WHICH IS STRONGER THAN ETA 925 MB WINDS.
SO...WILL GO WITH WIND ADVISORY TODAY AND INCLUDE ENTIRE CWA. WILL
CARRY IT THROUGH AFTN WEST...AND THROUGH TONIGHT EAST. WILL CONTINUE
CHANCE RAIN TONIGHT AND EARLY THURS...AND GENERALLY TAPER OFF FROM
WEST TO EAST. NO MAJOR DIFFERENCES SEEN IN FAN AND FWC TEMPS AND
HAVE GENERALLY FOLLOWED A COMPROMISE.

.ABR...WIND ADVISORY ENTIRE CWA...THROUGH TODAY WESTERN 1/3
       CWA...THROUGH THIS EVENING CNTL COUNTIES...AND THROUGH TONIGHT
       EASTERN COUNTIES.
LORENS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 5:28 AM MDT	Severe Thunderstorm Warning	ABR	Hughes	47 min
May 17, 6:56 AM MDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	64 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2000 Every severe thunderstorm warning in 2000

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.