Alert archive / Idaho / Mesoscale Discussions in 2003

Mesoscale Discussion 606

April 28, 20038 counties in Idaho; Elko County, Nevada

The Storm Prediction Center issued this mesoscale discussion at Apr 28, 2003, 12:36 PM MDT for 8 counties in Idaho; Elko County, Nevada. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Apr 28, 2003, 12:36 PM MDT (18:36 UTC)
Expired
Apr 28, 2003, 3:30 PM MDT
In force
3 hr
Issued by
the Storm Prediction Center

Counties Cassia County, ID, Gooding County, ID, Jerome County, ID, Lincoln County, ID, Minidoka County, ID, Owyhee County, ID, Power County, ID, Twin Falls County, ID, Elko County, NV

The nearest sounding before it

Elko, NV (KLKN), launched 12:00Z, 6.6 hours before the alert went out and 123 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 2003-04-28Temperature 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 2003-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
658 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
80 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.

IssuedProductOfficeCountiesLasted
Apr 28, 4:19 PM MDTMesoscale DiscussionSPCAda, Bannock, Bingham, Blaine, Butte, Camas and 10 more86 min

Nearby

Mesoscale Discussions in Idaho, 2003Mesoscale Discussions in Nevada, 2003Every 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.