Alert archive / South Dakota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 151, NWS Rapid City, SD

August 3, 2004Ziebach County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Aug 3, 2004, 3:44 AM MDT for Ziebach County, South Dakota. It was in force for 61 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 3, 2004, 3:44 AM MDT (09:44 UTC)
Expired
Aug 3, 2004, 4:45 AM MDT
In force
61 min
Issued by
NWS Rapid City, SD
Area
Counties, with a storm outline in the text

County Ziebach County, SD

The radar

The Rapid City radar (KUDX), 132 km from the middle of the area, began a volume at 09:45 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.

IssuedProductOfficeLasted
Aug 3, 2:00 AM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 9.7 hours before the alert went out and 140 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, Rapid City, SD at 00:00Z on 2004-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 603 joules per kilogram.LCLEL10008507005003002001001 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, Rapid City, SD at 00:00Z on 2004-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
603 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
2685 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6

Open this sounding in Storm Lab

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 Aug 3, 3:25 AM MDT, 19 minutes earlier.

Area forecast discussion, Aug 3, 3:25 AM MDT, 19 minutes before
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Hazardous weather outlook, Aug 2, 6:59 AM MDT, 20 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
659 AM MDT MON AUG 2 2004

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-031400-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
659 AM MDT (759 AM CDT) MON AUG 2 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF
NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA THIS AFTERNOON AND
TONIGHT. EXPECT THUNDERSTORMS TO DEVELOP BY MID AFTERNOON OVER THE
HIGHER TERRAIN AND THEN MOVE EAST SOUTHEAST ACROSS THE SOUTH DAKOTA
PLAINS. LARGE HAIL WILL THE BE MAIN THREAT...WITH SOME DAMAGING
WINDS ALSO EXPECTED.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF
NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA TUESDAY
AFTERNOON AND EVENING. DAMAGING WINDS AND LARGE HAIL ARE BOTH
POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

In the hours before

Local storm report, Aug 3, 12:16 AM MDT, 3 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT ... CORRECTION
NATIONAL WEATHER SERVICE RAPID CITY SD
1216 AM MDT TUE AUG 03 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0510 PM     HAIL             CUSTER                  43.77N 103.60W
08/02/2004  1.00 INCH        CUSTER             SD   PARK/FOREST SRVC

            LASTED 5 TO 10 MINUTES.

0525 PM     HAIL             3 NW FAIRBURN           43.72N 103.25W
08/02/2004  1.00 INCH        CUSTER             SD   PUBLIC

            HAIL LASTED 10 MINUTES.

0540 PM     HAIL             3 NE FAIRBURN           43.72N 103.17W
08/02/2004  0.88 INCH        CUSTER             SD   CO-OP OBSERVER

0555 PM     TSTM WND GST     6 ESE FAIRBURN          43.65N 103.10W
08/02/2004  70 MPH           CUSTER             SD   TRAINED SPOTTER

0645 PM     HAIL             10 SE MARTIN            43.07N 101.59W
08/02/2004  0.75 INCH        BENNETT            SD   PUBLIC

0705 PM     HAIL             7 S MARTIN              43.07N 101.73W
08/02/2004  1.25 INCH        BENNETT            SD   PUBLIC

            HAIL LASTED 5 TO 10 MINUTES.

0707 PM     HAIL             8 W ROCKYFORD           43.50N 102.66W
08/02/2004  1.00 INCH        SHANNON            SD   PUBLIC

0800 PM     HAIL             MANDERSON               43.24N 102.47W
08/02/2004  2.75 INCH        SHANNON            SD   LAW ENFORCEMENT

0800 PM     HAIL             PORCUPINE               43.23N 102.33W
08/02/2004  1.75 INCH        SHANNON            SD   LAW ENFORCEMENT

0815 PM     FUNNEL CLOUD     9 SW BATESLAND          43.04N 102.23W
08/02/2004                   SHANNON            SD   LAW ENFORCEMENT

0930 PM     HAIL             7 NE ORAL               43.47N 103.17W
08/02/2004  0.75 INCH        FALL RIVER         SD   TRAINED SPOTTER

&&

UNR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 6:18 PM MDTSevere Thunderstorm WarningUNRBennett57 min
Aug 2, 6:43 PM MDTSevere Thunderstorm WarningUNR62 min
Aug 2, 7:27 PM MDTTornado WarningUNR48 min
Aug 2, 8:10 PM MDTTornado WarningUNR50 min
Aug 2, 9:28 PM MDTSevere Thunderstorm WarningUNRFall River47 min
Aug 3, 12:18 AM MDTSevere Thunderstorm WarningUNRButte, Harding72 min
Aug 3, 1:24 AM MDTSevere Thunderstorm WarningUNRButte, Harding, Meade, Perkins51 min
Aug 3, 2:13 AM MDTSevere Thunderstorm WarningUNRMeade, Perkins62 min
Aug 3, 2:59 AM MDTSevere Thunderstorm WarningUNRZiebach61 min
Aug 3, 3:23 AM MDTSevere Thunderstorm WarningUNRHaakon82 min
Aug 3, 4:14 PM MDTSevere Thunderstorm WarningUNRCuster61 min
Aug 3, 4:20 PM MDTSevere Thunderstorm WarningUNRPennington55 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2004Every severe thunderstorm warning in 2004

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.