Alert archive / Iowa / Mesoscale Discussions in 2005

Mesoscale Discussion 1263

June 9, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2005, 3:58 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 9, 2005, 3:58 PM CDT (20:58 UTC)
Expired: Jun 9, 2005, 6:00 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 60 counties

Buena Vista County, IA, Calhoun County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Martin County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Antelope County, NE, Boyd County, NE, Brown County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Madison County, NE, Pierce County, NE, Rock County, NE, Stanton County, NE, Thurston County, NE, Wayne County, NE, Aurora County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Moody County, SD, Tripp County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 89 km from the middle of the area, began a volume at 21:00 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

Omaha, NE (KOAX), launched 12:00Z, 9.0 hours before the alert went out and 197 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: 308 J/kg
Mixed-layer CIN: -281 J/kg
Mixed-layer LCL: 1488 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 69 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
Jun 8, 8:02 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Fremont, Mills, Montgomery, Page and 3 more	58 min
Jun 9, 2:10 PM CDT	Tornado Watch	SPC	Chase, Dawson, Dundy, Frontier, Furnas, Gosper and 7 more	9 hr
Jun 9, 5:28 PM CDT	Mesoscale Discussion	SPC	Adams, Buffalo, Clay, Dawson, Franklin, Frontier and 13 more	92 min
Jun 9, 5:30 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Deuel	90 min
Jun 9, 5:50 PM CDT	Tornado Watch	SPC	Adams, Buffalo, Clay, Fillmore, Franklin, Greeley and 14 more	5 hr
Jun 9, 6:20 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Deuel, Kimball	6 hr

Nearby

Mesoscale Discussions in Iowa, 2005 Mesoscale Discussions in South Dakota, 2005 Mesoscale Discussions in Nebraska, 2005 Every mesoscale discussion in 2005

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.