Alert archive / Wyoming / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 101, NWS Rapid City, SD

June 24, 2000Weston County, Wyoming

NWS Rapid City, SD issued this severe thunderstorm warning at Jun 24, 2000, 3:28 AM MDT for Weston County, Wyoming. It was in force for 47 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 24, 2000, 3:28 AM MDT (09:28 UTC)
Expired: Jun 24, 2000, 4:15 AM MDT
In force: 47 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Weston County, WY

The radar

The Rapid City radar (KUDX), 143 km from the middle of the area, began a volume at 09:30 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

Time	Report	Where	Remark
Jun 24, 3:30 AM MDT	Hail 1.75	Upton, WY

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, 9.5 hours before the alert went out and 137 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: 1654 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1424 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.7

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 24, 3:00 AM MDT, 28 minutes earlier.

Area forecast discussion, Jun 24, 3:00 AM MDT, 28 minutes before

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In the hours before

Special weather statement, Jun 23, 9:59 PM MDT, 5 hours 29 minutes before

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Special weather statement, Jun 23, 10:13 PM MDT, 5 hours 15 minutes before

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Special weather statement, Jun 23, 11:23 PM MDT, 4 hours 5 minutes before

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Local storm report, Jun 23, 11:30 PM MDT, 3 hours 58 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 23, 6:16 PM MDT	Severe Thunderstorm Warning	UNR	Butte	44 min
Jun 23, 6:57 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	63 min
Jun 23, 7:01 PM MDT	Severe Thunderstorm Warning	UNR		49 min
Jun 23, 7:06 PM MDT	Tornado Warning	UNR		44 min
Jun 23, 7:56 PM MDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade, Pennington	59 min
Jun 23, 8:46 PM MDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	54 min
Jun 23, 9:35 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	30 min
Jun 23, 9:58 PM MDT	Severe Thunderstorm Warning	UNR	Jackson	47 min
Jun 23, 10:04 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	16 min
Jun 24, 2:39 AM MDT	Severe Thunderstorm Warning	UNR	Pennington	36 min
Jun 24, 3:14 AM MDT	Severe Thunderstorm Warning	UNR	Pennington	31 min
Jun 24, 3:43 AM MDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	47 min
Jun 24, 4:30 AM MDT	Severe Thunderstorm Warning	UNR	Pennington	45 min
Jun 24, 3:15 AM MDT	Severe Thunderstorm Warning	UNR	Campbell	20 min
Jun 24, 4:15 AM MDT	Severe Thunderstorm Warning	UNR	Weston	45 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2000 Every severe thunderstorm warning 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.