Alert archive / Wyoming / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 178, NWS Rapid City, SD

July 7, 2003Campbell County, Wyoming

NWS Rapid City, SD issued this severe thunderstorm warning at Jul 7, 2003, 7:55 PM MDT for Campbell County, Wyoming. It was in force for 65 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: Jul 7, 2003, 7:55 PM MDT (01:55 UTC)
Expired: Jul 7, 2003, 9:00 PM MDT
In force: 65 min
Issued by: NWS Rapid City, SD
Area: Counties, with a storm outline in the text

County Campbell County, WY

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 1.9 hours before the alert went out and 214 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: 210 J/kg
Mixed-layer CIN: -249 J/kg
Mixed-layer LCL: 2089 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 7, 7:30 PM MDT, 25 minutes earlier.

Area forecast discussion, Jul 7, 7:30 PM MDT, 25 minutes before

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Hazardous weather outlook, Jul 7, 6:00 AM MDT, 13 hours 55 minutes before

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In the hours before

Local storm report, Jul 7, 7:40 PM MDT, 15 minutes before

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Local storm report, Jul 7, 7:42 PM MDT, 13 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
Jul 7, 11:00 PM MDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	60 min
Jul 8, 8:58 AM MDT	Severe Thunderstorm Warning	UNR	Perkins	32 min
Jul 8, 9:24 AM MDT	Severe Thunderstorm Warning	UNR	Ziebach	66 min
Jul 8, 5:42 PM MDT	Severe Thunderstorm Warning	UNR	Butte	63 min
Jul 8, 5:56 PM MDT	Tornado Warning	UNR	Butte	49 min
Jul 7, 6:59 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	61 min
Jul 8, 3:49 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	26 min
Jul 8, 4:25 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	65 min
Jul 8, 5:21 PM MDT	Severe Thunderstorm Warning	UNR	Crook	39 min
Jul 8, 5:27 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	33 min
Jul 8, 5:28 PM MDT	Tornado Warning	UNR	Crook	32 min
Jul 8, 5:52 PM MDT	Severe Thunderstorm Warning	UNR	Crook	53 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2003 Every severe thunderstorm warning in 2003

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.