Alert archive / South Dakota / Tornado Warnings in 2000

Tornado Warning 4, NWS Aberdeen, SD

July 11, 2000Brown County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jul 11, 2000, 1:09 PM CDT for Brown County, South Dakota. It was in force for 51 min. 11 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 11, 2000, 1:09 PM CDT (18:09 UTC)
Expired
Jul 11, 2000, 2:00 PM CDT
In force
51 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Brown County, SD

The radar

The Aberdeen radar (KABR), 16 km from the middle of the area, began a volume at 18:13 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.

What was reported inside it

TimeReportWhereRemark
Jul 11, 1:22 PM CDTHail 0.75Aberdeen, SD
Jul 11, 1:25 PM CDTHail 1Aberdeen, SD
Jul 11, 1:30 PM CDTHail 1.75Aberdeen, SD
Jul 11, 1:31 PM CDTHail 1.25Aberdeen, SD
Jul 11, 1:39 PM CDTThunderstorm Wind 61 EAberdeen, SD
Jul 11, 1:45 PM CDTTornado F0Aberdeen, SDA small tornado touched downed briefly south of Aberdeen. No damage occurred.
Jul 11, 1:49 PM CDTHail 0.75Aberdeen, SD
Jul 11, 1:50 PM CDTThunderstorm Wind 70 EAberdeen, SDWinds to 80 mph uprooted and split many trees in southern Aberdeen. There was also many branches downed by the high winds and a quonset hut was destroyed.
Jul 11, 1:53 PM CDTThunderstorm Wind 59 MAberdeen, SD
Jul 11, 1:55 PM CDTHail 0.75Aberdeen, SD
Jul 11, 2:08 PM CDTHail 1Aberdeen, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 11, 12:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 6.2 hours before the alert went out and 77 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 2000-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 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 2000-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
683 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KABR 111810
TORABR

SDC013-111900-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
109 PM CDT TUE JUL 11 2000

THE NATIONAL WEATHER SERVICE IN ABERDEN HAS ISSUED A

* TORNADO WARNING FOR...
  BROWN COUNTY IN NORTHEAST SOUTH DAKOTA

* UNTIL 200 PM CDT

* AT 109 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 11 MILES SOUTHWEST OF RICHMOND LAKE REC AREA...OR ABOUT 14
  MILES EAST OF IPSWICH...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  RICHMOND LAKE REC AREA AROUND 130 PM CDT
  WESTPORT AROUND 150 PM CDT
  COLUMBIA AROUND 200 PM CDT

THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER NOW!

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN ABERDEEN.
$$
LAT...LON 4556 9872 4=532 9873 4553 9817 4574 9837

HINTZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 11:37 AM CDTSevere Thunderstorm WarningABRMcPherson33 min
Jul 11, 12:07 PM CDTSevere Thunderstorm WarningABREdmunds33 min
Jul 11, 12:41 PM CDTSevere Thunderstorm WarningABREdmunds34 min
Jul 11, 12:57 PM CDTTornado WarningABREdmunds33 min
Jul 11, 1:26 PM CDTSevere Thunderstorm WarningABREdmunds34 min
Jul 11, 1:54 PM CDTTornado WarningABRBrown51 min
Jul 11, 2:47 PM CDTSevere Thunderstorm WarningABRBrown, Day28 min
Jul 11, 2:50 PM CDTSevere Thunderstorm WarningABRSpink25 min
Jul 11, 3:14 PM CDTSevere Thunderstorm WarningABRDay46 min
Jul 11, 3:16 PM CDTSevere Thunderstorm WarningABRSpink44 min
Jul 11, 3:25 PM CDTSevere Thunderstorm WarningABRCodington, Grant, Roberts50 min
Jul 11, 3:48 PM CDTSevere Thunderstorm WarningABRHand42 min
Jul 11, 4:00 PM CDTSevere Thunderstorm WarningABRClark, Spink45 min
Jul 11, 4:15 PM CDTSevere Thunderstorm WarningABRRoberts30 min
Jul 11, 4:32 PM CDTSevere Thunderstorm WarningABRHand43 min
Jul 11, 5:01 PM CDTSevere Thunderstorm WarningABRHamlin44 min
Jul 11, 5:10 PM CDTSevere Thunderstorm WarningABRClark50 min

Nearby

Tornado Warnings in South Dakota, 2000Every tornado warning in 2000Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.