Alert archive / Utah / Mesoscale Discussions in 2003

Mesoscale Discussion 2224

August 22, 2003Bear Lake County, Franklin County, Oneida County, Idaho; 5 counties in Utah; Lincoln County, Uinta County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2003, 2:44 PM MDT for Bear Lake County, Franklin County, Oneida County, Idaho; 5 counties in Utah; Lincoln County, Uinta County, Wyoming. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Aug 22, 2003, 2:44 PM MDT (20:44 UTC)
Expired: Aug 22, 2003, 4:45 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Bear Lake County, ID, Franklin County, ID, Oneida County, ID, Cache County, UT, Davis County, UT, Morgan County, UT, Rich County, UT, Weber County, UT, Lincoln County, WY, Uinta County, WY

The radar

The Salt Lake City radar (KMTX), 71 km from the middle of the area, began a volume at 20:45 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, 8.7 hours before the alert went out and 94 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: 156 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 1912 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 22, 12:41 PM MDT	Mesoscale Discussion	SPC	Owyhee	2 hr
Aug 22, 1:55 PM MDT	Severe Thunderstorm Watch	SPC	Twin Falls	6 hr
Aug 22, 3:50 PM MDT	Mesoscale Discussion	SPC	Ada, Bannock, Bear Lake, Bingham, Blaine, Boise and 18 more	2 hr
Aug 22, 4:15 PM MDT	Severe Thunderstorm Watch	SPC	Ada, Blaine, Boise, Butte, Camas, Custer and 9 more	5 hr
Aug 22, 5:50 PM MDT	Mesoscale Discussion	SPC	Blaine, Boise, Butte, Camas, Custer, Elmore and 5 more	55 min
Aug 22, 11:37 AM MDT	Mesoscale Discussion	SPC	Beaver, Iron, Juab, Millard, Piute, Salt Lake and 3 more	113 min

Nearby

Mesoscale Discussions in Utah, 2003 Mesoscale Discussions in Idaho, 2003 Mesoscale Discussions in Wyoming, 2003 Every mesoscale discussion in 2003

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.