Alert archive / South Dakota / Tornado Warnings in 1996

Tornado Warning 22, NWS Rapid City, SD

August 9, 1996Fall River County, South Dakota

NWS Rapid City, SD issued this tornado warning at Aug 9, 1996, 7:21 PM MDT for Fall River County, South Dakota. It was in force for 69 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 9, 1996, 7:21 PM MDT (01:21 UTC)
Expired
Aug 9, 1996, 8:30 PM MDT
In force
69 min
Issued by
NWS Rapid City, SD
Area
Whole counties

County Fall River County, SD

The radar

The Rapid City radar (KUDX), 113 km from the middle of the area, began a volume at 01:22 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.4 hours before the alert went out and 336 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, N. Platte/Lee Bi, NE at 00:00Z on 1996-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 1996-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2334 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 6:20 PM MDTSevere Thunderstorm WarningUNRMeade, Pennington60 min
Aug 9, 6:26 PM MDTFlash Flood WarningUNRCuster3 hr
Aug 9, 6:31 PM MDTSevere Thunderstorm WarningUNRButte, Meade, Perkins59 min
Aug 9, 6:31 PM MDTSevere Thunderstorm WarningUNRPennington59 min
Aug 9, 6:33 PM MDTFlash Flood WarningUNRFall River2 hr
Aug 9, 6:33 PM MDTSevere Thunderstorm WarningUNRFall River2 hr
Aug 9, 6:45 PM MDTSevere Thunderstorm WarningUNRCuster, Jackson60 min
Aug 9, 6:45 PM MDTSevere Thunderstorm WarningUNRHaakon60 min
Aug 9, 7:15 PM MDTSevere Thunderstorm WarningUNRHaakon, Jackson, Ziebach60 min
Aug 9, 7:15 PM MDTSevere Thunderstorm WarningUNR60 min
Aug 9, 7:21 PM MDTFlash Flood WarningUNRFall River69 min
Aug 9, 7:28 PM MDTSevere Thunderstorm WarningUNRCuster, Meade, Pennington62 min

Nearby

Tornado Warnings in South Dakota, 1996Every tornado warning in 1996Tornadoes in 1996

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.