Alert archive / South Dakota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 37, NWS Rapid City, SD

June 22, 2002Ziebach County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Jun 22, 2002, 11:14 PM MDT for Ziebach County, South Dakota. It was in force for 61 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 22, 2002, 11:14 PM MDT (05:14 UTC)
Expired: Jun 23, 2002, 12:15 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

What was reported inside it

Time	Report	Where	Remark
Jun 22, 11:30 PM MDT	Hail 0.75	Red Scaffold, 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 nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 5.2 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-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: 770 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 2767 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Jun 22, 10:35 PM MDT, 39 minutes earlier.

Area forecast discussion, Jun 22, 10:35 PM MDT, 39 minutes before

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In the hours before

Local storm report, Jun 22, 6:59 PM MDT, 4 hours 15 minutes before

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Local storm report, Jun 22, 7:13 PM MDT, 4 hours 1 minute before

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Local storm report, Jun 22, 7:48 PM MDT, 3 hours 26 minutes before

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Local storm report, Jun 22, 7:49 PM MDT, 3 hours 25 minutes before

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Local storm report, Jun 22, 8:39 PM MDT, 2 hours 35 minutes before

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Special weather statement, Jun 22, 10:26 PM MDT, 48 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 6:12 PM MDT	Severe Thunderstorm Warning	UNR	Butte	33 min
Jun 22, 6:21 PM MDT	Severe Thunderstorm Warning	UNR	Harding	54 min
Jun 22, 7:20 PM MDT	Severe Thunderstorm Warning	UNR	Harding	55 min
Jun 22, 8:10 PM MDT	Severe Thunderstorm Warning	UNR	Butte	35 min
Jun 22, 9:33 PM MDT	Severe Thunderstorm Warning	UNR	Meade	27 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2002 Every severe thunderstorm warning in 2002

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.