Alert archive / Idaho / Mesoscale Discussions in 2006

Mesoscale Discussion 892

May 18, 20064 states

The Storm Prediction Center issued this mesoscale discussion at May 18, 2006, 1:24 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 18, 2006, 1:24 PM MDT (19:24 UTC)
Expired: May 18, 2006, 3:30 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 44 counties

Ada County, ID, Adams County, ID, Blaine County, ID, Boise County, ID, Butte County, ID, Camas County, ID, Canyon County, ID, Clark County, ID, Custer County, ID, Elmore County, ID, Gem County, ID, Gooding County, ID, Idaho County, ID, Jefferson County, ID, Jerome County, ID, Lemhi County, ID, Lewis County, ID, Lincoln County, ID, Minidoka County, ID, Nez Perce County, ID, Owyhee County, ID, Payette County, ID, Twin Falls County, ID, Valley County, ID, Washington County, ID, Ravalli County, MT, Baker County, OR, Crook County, OR, Deschutes County, OR, Gilliam County, OR, Grant County, OR, Harney County, OR, Jackson County, OR, Jefferson County, OR, Klamath County, OR, Lake County, OR, Malheur County, OR, Morrow County, OR, Umatilla County, OR, Union County, OR, Wallowa County, OR, Wasco County, OR, Wheeler County, OR, Asotin County, WA

The radar

The Boise radar (KCBX), 132 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 467 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: 1891 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 4 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, 2006 Mesoscale Discussions in Oregon, 2006 Mesoscale Discussions in Montana, 2006 Every mesoscale discussion in 2006

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.