Alert archive / Utah / Mesoscale Discussions in 2005

Mesoscale Discussion 1471

June 25, 200524 counties in Utah; Uinta County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2005, 6:15 PM MDT for 24 counties in Utah; Uinta County, Wyoming. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 25, 2005, 6:15 PM MDT (00:15 UTC)
Expired: Jun 25, 2005, 8:15 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 25 counties

Beaver County, UT, Box Elder County, UT, Cache County, UT, Carbon County, UT, Daggett County, UT, Davis County, UT, Duchesne County, UT, Emery County, UT, Grand County, UT, Juab County, UT, Millard County, UT, Morgan County, UT, Piute County, UT, Rich County, UT, Salt Lake County, UT, Sanpete County, UT, Sevier County, UT, Summit County, UT, Tooele County, UT, Uintah County, UT, Utah County, UT, Wasatch County, UT, Wayne County, UT, Weber County, UT, Uinta County, WY

The radar

The Salt Lake City radar (KMTX), 190 km from the middle of the area, began a volume at 00:18 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 00:00Z, 0.3 hours before the alert went out and 134 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: 85 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 3118 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 102 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
Jun 25, 6:42 PM MDT	Mesoscale Discussion	SPC	Teton	93 min
Jun 25, 8:23 PM MDT	Mesoscale Discussion	SPC	Campbell, Crook, Goshen, Niobrara, Weston	97 min
Jun 26, 1:30 PM MDT	Mesoscale Discussion	SPC	Crook	3 hr
Jun 26, 2:15 PM MDT	Severe Thunderstorm Watch	SPC	Campbell, Crook	7 hr
Jun 26, 2:30 PM MDT	Mesoscale Discussion	SPC	Teton	2 hr

Nearby

Mesoscale Discussions in Utah, 2005 Mesoscale Discussions in Wyoming, 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; radar from the NEXRAD Level II archive.