Alert archive / South Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 39, NWS Rapid City, SD

June 9, 2001Tripp County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Jun 9, 2001, 9:39 PM CDT for Tripp County, South Dakota. It was in force for 66 min. 1 report 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
Jun 9, 2001, 9:39 PM CDT (02:39 UTC)
Expired
Jun 9, 2001, 10:45 PM CDT
In force
66 min
Issued by
NWS Rapid City, SD
Area
Whole counties

County Tripp County, SD

The radar

The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 02:41 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
Jun 9, 10:07 PM CDTHail 0.75Winner, 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
Jun 9, 8:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.7 hours before the alert went out and 209 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 00:00Z on 2001-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1849 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 00:00Z on 2001-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
1849 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1555 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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.

NWS Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 9, 9:20 PM CDT, 19 minutes earlier.

Area forecast discussion, Jun 9, 9:20 PM CDT, 19 minutes before
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In the hours before

Local storm report, Jun 9, 7:27 PM CDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
627 PM MDT SAT JUN 09 2001

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

0550 PM    1 SE BLACK HAWK           SD   WIND DAMAGE
06/09/01   MEADE                          TRACTOR TRAIL BLOW OFF
                                          INTERSTATE. REPORTED BY
                                          HAM RADIO OPERATOR.

@RUKWBCe
KDENWWUS30 KRAP 100028
LSRRAP

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
628 PM MDT SAT JUN 09 2001

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

0450 PM    1 S NEWCASTLE             WY   WIND DAMAGE
06/09/01   WESTON                         CAMPER FLIPPED OVER.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

@RUKWBCe
KDENWWUS30 KRAP 100028
LSRRAP

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
628 PM MDT SAT JUN 09 2001

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

0452 PM    NEWCASTLE                 WY   WIND DAMAGE
06/09/01   WESTON                         POWER LINES BLOWN DOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
Local storm report, Jun 9, 7:28 PM CDT, 2 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
628 PM MDT SAT JUN 09 2001

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

0452 PM    NEWCASTLE                 WY   WIND DAMAGE
06/09/01   WESTON                         POWER LINES BLOWN DOWN.
                                          REPORTED BY LAW
                                          ENFORCEME2NT OFFICIAL.
Local storm report, Jun 9, 7:29 PM CDT, 2 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
629 PM MDT SAT JUN 09 2001

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

0500 PM    NEWCASTLE                 WY   WIND DAMAGE
06/09/01   WESTON                         CHIMNEY BLOW OFF
                                          BUILDING...WINDOWS
                                          BLOWN OUT AND LARGE
                                          TREES DOWN. REPORTED BY
                                          LAW ENFORCEMENT OFFICIAL.
Local storm report, Jun 9, 7:30 PM CDT, 2 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
630 PM MDT SAT JUN 09 2001

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

0452 PM    NEWCASTLE                 WY   WIND DAMAGE
06/09/01   WESTON                         5 VEHICLES SUFFERED
                                          MAJOR DAMAGE FROM FRONT
                                          OF FORREST SERVICE
                                          BUILDING. REPORTED BY
                                          LAW ENFORCEMENT OFFICIAL.
Local storm report, Jun 9, 8:30 PM CDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
730 PM MDT SAT JUN 09 2001

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

0450 PM    NEWCASTLE                 WY   TORNADO
06/09/01   WESTON                         REPORTED BY PUBLIC.

0615 PM    PHILIP                    SD   70 MPH TSTM GUST
06/09/01   HAAKON                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0615 PM    14 E HERMOSA              SD   75 MPH TSTM GUST
06/09/01   CUSTER                         REPORTED BY COOPERATIVE
                                          OBSERVER.

0622 PM    12 E HERMOSA              SD   .75 INCH HAIL
06/09/01   CUSTER                         REPORTED BY STORM
                                          SPOTTER.

0635 PM    SCENIC                    SD   65 MPH TSTM GUST
06/09/01   PENNINGTON                     REPORTED BY STORM
                                          SPOTTER.

0635 PM    SCENIC                    SD   .75 INCH HAIL
06/09/01   PENNINGTON                     REPORTED BY STORM
                                          SPOTTER.

0640 PM    5 N KYLE                  SD   60 MPH TSTM GUST
06/09/01   SHANNON                        REPORTED BY COOPERATIVE
                                          OBSERVER.

0650 PM    3 NE INTERIOR             SD   65 MPH TSTM GUST
06/09/01   JACKSON                        REPORTED BY PUBLIC.

0655 PM    PHILIP                    SD   WIND DAMAGE
06/09/01   HAAKON                         LARGE TREE DOWN.
                                          REPORTED BY STORM
                                          SPOTTER.

0700 PM    2 NE OWANKA               SD   .88 INCH HAIL
06/09/01   PENNINGTON                     REPORTED BY STORM
                                          SPOTTER.

0705 PM    KADOKA                    SD   75 MPH TSTM GUST
06/09/01   JACKSON                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0715 PM    KADOKA                    SD   80 MPH TSTM GUST
06/09/01   JACKSON                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
Local storm report, Jun 9, 9:31 PM CDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 7:18 PM CDTSevere Thunderstorm WarningUNRJackson57 min
Jun 9, 7:18 PM CDTSevere Thunderstorm WarningUNRHaakon57 min
Jun 9, 8:02 PM CDTSevere Thunderstorm WarningUNRHaakon, Jackson58 min
Jun 9, 8:08 PM CDTSevere Thunderstorm WarningUNRMellette67 min
Jun 9, 8:50 PM CDTSevere Thunderstorm WarningUNRTodd, Tripp55 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2001Every severe thunderstorm warning in 2001

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.