Alert archive / Wyoming / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 183, NWS Cheyenne, WY

August 14, 1996Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 14, 1996, 6:13 PM MDT for Laramie County, Wyoming. It was in force for 32 min. 2 reports 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
Aug 14, 1996, 6:13 PM MDT (00:13 UTC)
Expired
Aug 14, 1996, 6:45 PM MDT
In force
32 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 00:14 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

TimeReportWhereRemark
Aug 14, 6:13 PM MDTHail 0.75Albin, WY
Aug 14, 6:30 PM MDTHail 3Albin, 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

Denver, CO (KDNR), launched 00:00Z, 0.2 hours before the alert went out and 202 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, Denver, CO at 00:00Z on 1996-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 627 joules per kilogram.LCLLFCEL10008507005003002001001 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, Denver, CO at 00:00Z on 1996-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
627 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
2385 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-2 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.

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.

In the hours before

Special weather statement, Aug 14, 3:35 PM MDT, 2 hours 38 minutes before
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Special weather statement, Aug 14, 4:11 PM MDT, 2 hours 2 minutes before
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Special weather statement, Aug 14, 4:25 PM MDT, 1 hour 48 minutes before
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Special weather statement, Aug 14, 5:23 PM MDT, 50 minutes before
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Special weather statement, Aug 14, 6:10 PM MDT, 3 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 6:31 PM MDTSevere Thunderstorm WarningCYSBanner44 min
Aug 14, 6:54 PM MDTSevere Thunderstorm WarningCYSScotts Bluff51 min
Aug 14, 7:45 PM MDTSevere Thunderstorm WarningCYSScotts Bluff45 min
Aug 15, 3:21 PM MDTSevere Thunderstorm WarningCYSDawes39 min
Aug 15, 3:48 PM MDTSevere Thunderstorm WarningCYSKimball42 min
Aug 15, 3:55 PM MDTSevere Thunderstorm WarningCYSDawes50 min
Aug 15, 3:59 PM MDTSevere Thunderstorm WarningCYSBox Butte46 min
Aug 15, 4:18 PM MDTSevere Thunderstorm WarningCYSCheyenne42 min
Aug 15, 4:26 PM MDTSevere Thunderstorm WarningCYSKimball34 min
Aug 15, 4:32 PM MDTSevere Thunderstorm WarningCYSBox Butte43 min
Aug 15, 4:46 PM MDTSevere Thunderstorm WarningCYSDawes44 min
Aug 15, 4:50 PM MDTTornado WarningCYSCheyenne, Kimball40 min
Aug 15, 4:55 PM MDTSevere Thunderstorm WarningCYSMorrill50 min
Aug 15, 5:45 PM MDTSevere Thunderstorm WarningCYSMorrill30 min
Aug 14, 6:44 PM MDTSevere Thunderstorm WarningCYSGoshen31 min
Aug 14, 6:45 PM MDTSevere Thunderstorm WarningCYSConverse45 min
Aug 14, 7:30 PM MDTSevere Thunderstorm WarningCYSPlatte45 min
Aug 14, 8:23 PM MDTSevere Thunderstorm WarningCYSPlatte52 min
Aug 15, 2:25 PM MDTSevere Thunderstorm WarningCYSPlatte50 min
Aug 15, 2:29 PM MDTSevere Thunderstorm WarningCYSLaramie31 min
Aug 15, 2:36 PM MDTSevere Thunderstorm WarningCYSLaramie54 min
Aug 15, 2:58 PM MDTSevere Thunderstorm WarningCYSLaramie47 min
Aug 15, 3:29 PM MDTSevere Thunderstorm WarningCYSLaramie46 min
Aug 15, 4:29 PM MDTSevere Thunderstorm WarningCYSConverse31 min
Aug 15, 5:46 PM MDTSevere Thunderstorm WarningCYSConverse44 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1996Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.