Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 121, NWS Aberdeen, SD

August 4, 2000Buffalo County, Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 4, 2000, 11:29 PM CDT for Buffalo County, Lyman County, South Dakota. It was in force for 46 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: Aug 4, 2000, 11:29 PM CDT (04:29 UTC)
Expired: Aug 5, 2000, 12:15 AM CDT
In force: 46 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

Counties Buffalo County, SD, Lyman County, SD

The radar

The Aberdeen radar (KABR), 186 km from the middle of the area, began a volume at 04:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 4, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 4.5 hours before the alert went out and 135 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: 2354 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KABR 050430
SVRABR
SDC017-085-050515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1129 PM CDT FRI AUG 4 2000

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BUFFALO COUNTY IN CENTRAL SOUTH DAKOTA
  LYMAN COUNTY IN CENTRAL SOUTH DAKOTA

* UNTIL 1215 AM CDT

* AT 1129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF RELIANCE...OR ABOUT 11    
  MILES WEST OF CHAMBERLAIN...MOVING EAST AT 45 MPH. LARGE HAIL IS   
  LIKELY WITH THIS STORM. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHELBY AROUND 1150 PM CDT
  GANN VALLEY AROUND MIDNIGHT CDT

THIS IS A DANGEROUS STORM. TAKE SHELTER NOW!

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
ABERDEEN.

$$
LAT...LON 4392 9964 43F75 9956 4387 9880 4417 9891

JH

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 Aug 4, 9:14 PM CDT, 2 hours 15 minutes earlier.

Area forecast discussion, Aug 4, 9:14 PM CDT, 2 hours 15 minutes before

AREA FORECAST DISCUSSION FOR CENTRAL/NORTHCENTRAL AND NORTHEAST
SOUTH DAKOTA AND WEST CENTRAL MINNESOTA
NATIONAL WEATHER SERVICE ABERDEEN SD
915 PM CDT THU AUG 3 2000

CURRENT ZONE PACKAGE LOOKS GOOD. RADAR INDICATED SEVERAL SEVERE
THUNDERSTORMS ACROSS CENTRAL AND NORTH CENTRAL SOUTH DAKOTA. THE
THREAT OF SEVERE WEATHER CONTINUES ACROSS THE ENTIRE WATCH AREA
ALONG WITH THE POTENTIAL FOR HEAVY RAIN. NO UPDATES MADE TO THE
ZONES.

.ABR...FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST
       SOUTH DAKOTA AND BIG STONE AND TRAVERSE COUNTIES IN
       MINNESOTA.

ECKBERG
N

In the hours before

Local storm report, Aug 4, 6:35 PM CDT, 4 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
635 PM CDT FRI AUG 4 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....      x

0600 PM    EAGLE BUTTE               SD   .75 INCH HAIL
08/04/00   DEWEY

JH

N

Local storm report, Aug 4, 7:34 PM CDT, 3 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
734 PM CDT FRI AUG 4 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....      |

0710 PM    6 W RIDGEVIEW             SD   .88 INCH HAIL
08/04/00   DEWEY                          NICKLE SIZE HAIL.

JH

N

Local storm report, Aug 4, 8:28 PM CDT, 3 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
828 PM CDT FRI AUG 4 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0800 PM    MISSION RIDGE             SD   1.75 INCH HAIL
08/04/00   STANLEY                        GOLF BALL SIZE HAIL COVERED
                                          THE GROUND.  1.4 INCHES OF
                                          RAIN.

JH

N

Special weather statement, Aug 4, 9:56 PM CDT, 1 hour 33 minutes before

SDZ003-015-033-045-050315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
956 PM CDT (856 PM MDT) FRI AUG 4 2000

...SEVERE THUNDERSTORM WATCH 646 CANCELLED...

SEVERE THUNDERSTORM WATCH 646 FOR CORSON...DEWEY...
STANLEY...AND JONES COUNTIES HAVE BEEN CANCELLED.

ECKBERG

N

Local storm report, Aug 4, 10:00 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1000 PM CDT FRI AUG 4 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    4 NE PIERRE               SD   3.5 INCH HAIL
08/04/00   HUGHES                         GRAPEFRUIT SIZE HAIL
                                          REPORTED BY LAW               F
                                          ENFORCEMENT.

JH

N

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 7:16 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	29 min
Aug 4, 7:49 PM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley, Sully	56 min
Aug 4, 8:33 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Walworth	57 min
Aug 4, 8:37 PM CDT	Severe Thunderstorm Warning	ABR	Hughes	53 min
Aug 4, 8:48 PM CDT	Severe Thunderstorm Warning	ABR	Sully	27 min
Aug 4, 8:50 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	55 min
Aug 4, 9:30 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hughes, Hyde, Lyman	60 min
Aug 4, 9:30 PM CDT	Severe Thunderstorm Warning	ABR	Stanley	60 min
Aug 4, 9:33 PM CDT	Severe Thunderstorm Warning	ABR	Potter, Walworth	42 min
Aug 4, 9:43 PM CDT	Severe Thunderstorm Warning	ABR	Edmunds	47 min
Aug 4, 9:44 PM CDT	Tornado Warning	ABR	Hughes	31 min
Aug 4, 10:14 PM CDT	Severe Thunderstorm Warning	ABR	Hughes	31 min
Aug 4, 10:25 PM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hyde, Lyman	65 min
Aug 4, 10:26 PM CDT	Severe Thunderstorm Warning	ABR	Faulk	49 min
Aug 4, 10:31 PM CDT	Tornado Warning	ABR	Faulk	44 min
Aug 4, 11:16 PM CDT	Severe Thunderstorm Warning	ABR	Faulk	44 min
Aug 4, 11:42 PM CDT	Severe Thunderstorm Warning	ABR	Spink	48 min
Aug 5, 12:00 AM CDT	Severe Thunderstorm Warning	ABR	Hand	30 min
Aug 5, 12:27 AM CDT	Severe Thunderstorm Warning	ABR	Hand	33 min
Aug 5, 2:38 AM CDT	Severe Thunderstorm Warning	ABR	Faulk	67 min
Aug 5, 3:31 AM CDT	Severe Thunderstorm Warning	ABR	Hand	59 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.