Alert archive / Utah / Mesoscale Discussions in 2008

Mesoscale Discussion 2192

August 31, 2008Bear Lake County, Caribou County, Franklin County, Idaho; 11 counties in Utah; Lincoln County, Uinta County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Aug 31, 2008, 3:58 PM MDT for Bear Lake County, Caribou County, Franklin County, Idaho; 11 counties in Utah; Lincoln County, Uinta County, Wyoming. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Aug 31, 2008, 3:58 PM MDT (21:58 UTC)
Expired: Aug 31, 2008, 5:30 PM MDT
In force: 92 min
Issued by: the Storm Prediction Center

Counties Bear Lake County, ID, Caribou County, ID, Franklin County, ID, Cache County, UT, Davis County, UT, Juab County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Summit County, UT, Tooele County, UT, Utah County, UT, Wasatch County, UT, Weber County, UT, Lincoln County, WY, Uinta County, WY

The radar

The Salt Lake City radar (KMTX), 42 km from the middle of the area, began a volume at 22:03 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 10.0 hours before the alert went out and 37 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: 2 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 2473 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 101 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.

Issued	Product	Office	Counties	Lasted
Aug 31, 12:04 PM MDT	Mesoscale Discussion	SPC	Bear Lake, Franklin, Oneida	2 hr
Aug 31, 1:19 PM MDT	Severe Thunderstorm Watch	SPC	Bannock, Bear Lake, Bingham, Bonneville, Caribou, Cassia and 3 more	8 hr

Nearby

Mesoscale Discussions in Utah, 2008 Mesoscale Discussions in Idaho, 2008 Mesoscale Discussions in Wyoming, 2008 Every mesoscale discussion in 2008

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.