Alert archive / Idaho / Mesoscale Discussions in 2006

Mesoscale Discussion 1114

June 9, 200617 counties in Idaho; Gallatin County, Madison County, Park County, Montana; Teton County, Wyoming

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2006, 12:00 PM MDT for 17 counties in Idaho; Gallatin County, Madison County, Park County, Montana; Teton County, Wyoming. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 9, 2006, 12:00 PM MDT (18:00 UTC)
Expired
Jun 9, 2006, 2:00 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
All 21 counties

Bannock County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Cassia County, ID, Clark County, ID, Fremont County, ID, Jefferson County, ID, Jerome County, ID, Lincoln County, ID, Madison County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Gallatin County, MT, Madison County, MT, Park County, MT, Teton County, WY

The radar

The Pocatello radar (KSFX), 110 km from the middle of the area, began a volume at 18:04 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 6.0 hours before the alert went out and 306 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, Riverton, WY at 12:00Z on 2006-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLLFCEL10008507005003002001001 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, Riverton, WY at 12:00Z on 2006-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
22 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1542 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
85 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
Jun 9, 12:23 PM MDTSevere Thunderstorm WatchSPCBannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 18 more8 hr
Jun 9, 2:46 PM MDTMesoscale DiscussionSPCBannock, Bear Lake, Bingham, Blaine, Bonneville, Butte and 15 more119 min
Jun 8, 7:10 PM MDTMesoscale DiscussionSPCCarter, Custer, Fallon, Powder River95 min
Jun 9, 12:44 PM MDTMesoscale DiscussionSPCCampbell, Niobrara, Weston2 hr
Jun 9, 1:19 PM MDTSevere Thunderstorm WatchSPCCampbell, Converse, Goshen, Niobrara, Platte, Weston7 hr
Jun 9, 5:12 PM MDTMesoscale DiscussionSPCConverse, Niobrara, Weston93 min

Nearby

Mesoscale Discussions in Idaho, 2006Mesoscale Discussions in Montana, 2006Mesoscale Discussions in Wyoming, 2006Every 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.