Alert archive / Wyoming / Mesoscale Discussions in 2005

Mesoscale Discussion 1432

June 23, 2005Big Horn County, Carbon County, Montana; 7 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2005, 2:48 PM MDT for Big Horn County, Carbon County, Montana; 7 counties in Wyoming. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Jun 23, 2005, 2:48 PM MDT (20:48 UTC)
Expired
Jun 23, 2005, 4:45 PM MDT
In force
117 min
Issued by
the Storm Prediction Center

Counties Big Horn County, MT, Carbon County, MT, Big Horn County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Sheridan County, WY, Washakie County, WY

The radar

The Billings radar (KBLX), 151 km from the middle of the area, began a volume at 20:52 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

Great_falls, MT (KTFX), launched 12:00Z, 8.8 hours before the alert went out and 379 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, Great_falls, MT at 12:00Z on 2005-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Great_falls, MT at 12:00Z on 2005-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.1939587897117Sfc1 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
2044 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-30 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

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 22, 7:58 PM MDTMesoscale DiscussionSPCBlaine, Broadwater, Cascade, Chouteau, Custer, Daniels and 27 more62 min
Jun 22, 9:47 PM MDTMesoscale DiscussionSPCBig Horn, Blaine, Carbon, Cascade, Chouteau, Daniels and 23 more58 min

Nearby

Mesoscale Discussions in Wyoming, 2005Mesoscale Discussions in Montana, 2005Every mesoscale discussion in 2005

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.