Alert archive / Utah / Mesoscale Discussions in 2005

Mesoscale Discussion 1997

August 16, 200513 counties in Utah

The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2005, 4:48 PM MDT for 13 counties in Utah. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued: Aug 16, 2005, 4:48 PM MDT (22:48 UTC)
Expired: Aug 16, 2005, 6:45 PM MDT
In force: 117 min
Issued by: the Storm Prediction Center

Counties Carbon County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Juab County, UT, Piute County, UT, Salt Lake County, UT, Sanpete County, UT, Sevier County, UT, Tooele County, UT, Utah County, UT, Wasatch County, UT, Wayne County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 10.8 hours before the alert went out and 146 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: 19 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 1105 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 20 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 16, 11:31 AM MDT	Mesoscale Discussion	SPC	Beaver, Iron, Juab, Millard, Piute, Tooele and 1 more	2 hr
Aug 16, 1:33 PM MDT	Mesoscale Discussion	SPC	Emery, Garfield, Grand, Kane, San Juan, Wayne	117 min
Aug 16, 2:45 PM MDT	Severe Thunderstorm Watch	SPC	Beaver, Garfield, Iron, Juab, Kane, Millard and 8 more	5 hr

Nearby

Mesoscale Discussions in Utah, 2005 Every 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.