Alert archive / Idaho / Mesoscale Discussions in 2015

Mesoscale Discussion 874

June 3, 20159 counties in Idaho; Elko County, Nevada; 8 counties in Utah

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2015, 3:38 PM MDT for 9 counties in Idaho; Elko County, Nevada; 8 counties in Utah. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued
Jun 3, 2015, 3:38 PM MDT (21:38 UTC)
Expired
Jun 3, 2015, 5:15 PM MDT
In force
97 min
Issued by
the Storm Prediction Center
Chance of a watch
5%

Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Caribou County, ID, Cassia County, ID, Franklin County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Elko County, NV, Box Elder County, UT, Cache County, UT, Davis County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Tooele County, UT, Weber County, UT

The radar

The Salt Lake City radar (KMTX), 62 km from the middle of the area, began a volume at 21:41 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, 9.6 hours before the alert went out and 115 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-pSkew-T log-p diagram, Elko, NV at 12:00Z on 2015-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 12:00Z on 2015-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2351 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
161 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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Nearby

Mesoscale Discussions in Idaho, 2015Mesoscale Discussions in Utah, 2015Mesoscale Discussions in Nevada, 2015Every mesoscale discussion in 2015

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.