Alert archive / Kentucky / Mesoscale Discussions in 2006

Mesoscale Discussion 978

May 25, 200654 counties in Kentucky; 20 counties in Ohio; 23 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at May 25, 2006, 7:39 PM CDT for 54 counties in Kentucky; 20 counties in Ohio; 23 counties in West Virginia. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: May 25, 2006, 7:39 PM CDT (00:39 UTC)
Expired: May 25, 2006, 9:15 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center

All 97 counties

Adair County, KY, Bath County, KY, Bell County, KY, Boyd County, KY, Boyle County, KY, Breathitt County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Garrard County, KY, Green County, KY, Greenup County, KY, Harlan County, KY, Jackson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Taylor County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Athens County, OH, Belmont County, OH, Coshocton County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Pike County, OH, Scioto County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Boone County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Marshall County, WV, Mason County, WV, Mingo County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV

The radar

The Jackson,KY radar (KJKL), 66 km from the middle of the area, began a volume at 00:38 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.

Severe Thunderstorm Watch 398May 25, 7:55 PM CDT

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 145 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: 1488 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1193 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

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
May 25, 7:53 PM CDT	Severe Thunderstorm Watch	SPC	Bath, Bell, Boyd, Breathitt, Carter, Clay and 27 more	6 hr
May 26, 1:11 AM CDT	Mesoscale Discussion	SPC	Bell, Harlan, Knott, Knox, Leslie, Letcher and 2 more	94 min
May 26, 4:35 PM CDT	Severe Thunderstorm Watch	SPC	Calloway, Fulton, Graves, Hickman	6 hr
May 26, 10:42 AM CDT	Mesoscale Discussion	SPC	Berkeley, Grant, Greenbrier, Hampshire, Hardy, Jefferson and 7 more	2 hr
May 26, 2:53 PM CDT	Severe Thunderstorm Watch	SPC	Mercer	7 hr

Nearby

Mesoscale Discussions in Kentucky, 2006 Mesoscale Discussions in West Virginia, 2006 Mesoscale Discussions in Ohio, 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.