Alert archive / Idaho / Mesoscale Discussions in 2014

Mesoscale Discussion 1373

July 14, 20148 counties in Idaho; Elko County, Eureka County, Nevada; Box Elder County, Davis County, Tooele County, Utah

The Storm Prediction Center issued this mesoscale discussion at Jul 14, 2014, 2:05 PM MDT for 8 counties in Idaho; Elko County, Eureka County, Nevada; Box Elder County, Davis County, Tooele County, Utah. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued: Jul 14, 2014, 2:05 PM MDT (20:05 UTC)
Expired: Jul 14, 2014, 4:00 PM MDT
In force: 115 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Cassia County, ID, Gooding County, ID, Jerome County, ID, Lincoln County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Twin Falls County, ID, Elko County, NV, Eureka County, NV, Box Elder County, UT, Davis County, UT, Tooele County, UT

The radar

The Salt Lake City radar (KMTX), 155 km from the middle of the area, began a volume at 20:03 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

Elko, NV (KLKN), launched 12:00Z, 8.1 hours before the alert went out and 74 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3187 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 55 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
Jul 14, 1:27 PM MDT	Mesoscale Discussion	SPC	Bingham, Blaine, Bonneville, Butte, Clark, Clearwater and 8 more	93 min
Jul 14, 2:05 PM MDT	Severe Thunderstorm Watch	SPC	Bingham, Bonneville, Butte, Clark, Custer, Fremont and 4 more	7 hr
Jul 14, 5:42 PM MDT	Mesoscale Discussion	SPC	Bannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 16 more	63 min

Nearby

Mesoscale Discussions in Idaho, 2014 Mesoscale Discussions in Utah, 2014 Mesoscale Discussions in Nevada, 2014 Every mesoscale discussion in 2014

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.