Alert archive / Kentucky / Mesoscale Discussions in 2004

Mesoscale Discussion 954

May 27, 20044 states

The Storm Prediction Center issued this mesoscale discussion at May 27, 2004, 7:35 PM EDT for 4 states. It was in force for 25 min.

The area

The outline as issued.

The facts

Issued: May 27, 2004, 7:35 PM EDT (23:35 UTC)
Expired: May 27, 2004, 8:00 PM EDT
In force: 25 min
Issued by: the Storm Prediction Center

All 68 counties

Ohio County, IN, Switzerland County, IN, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Clark County, KY, Elliott County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Greenup County, KY, Harrison County, KY, Henry County, KY, Johnson County, KY, Kenton County, KY, Lawrence County, KY, Lewis County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY, Adams County, OH, Brown County, OH, Clermont County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Pike County, OH, Scioto County, OH, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Fayette County, WV, Gilmer County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Roane County, WV, Summers County, WV, Wayne County, WV, Webster County, WV

The radar

The Cincinnati radar (KILN), 101 km from the middle of the area, began a volume at 23:36 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.6 hours before the alert went out and 102 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: 97 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 587 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 295 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 26, 9:55 PM EDT	Tornado Watch	SPC	Gibson, Pike, Posey, Vanderburgh, Warrick	5 hr
May 27, 12:14 AM EDT	Mesoscale Discussion	SPC	Gibson, Pike, Posey, Vanderburgh, Warrick	2 hr
May 27, 2:53 AM EDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Clay, Daviess, Floyd and 17 more	3 hr
May 27, 2:07 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Boone, Brown, Clay, Dearborn, Decatur and 28 more	113 min
May 27, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Benton, Blackford, Boone, Carroll, Cass and 39 more	7 hr
May 27, 4:12 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Benton, Boone, Brown, Clay, Clinton and 29 more	2 hr
May 27, 4:37 PM EDT	Mesoscale Discussion	SPC	Gibson, Posey	113 min
May 27, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	Bartholomew, Brown, Clark, Crawford, Daviess, Dubois and 18 more	4 hr
May 27, 7:00 PM EDT	Mesoscale Discussion	SPC	Adams, Benton, Blackford, Boone, Carroll, Cass and 34 more	90 min
May 27, 7:55 PM EDT	Tornado Watch	SPC	Jefferson, Ohio, Switzerland	5 hr
May 26, 8:57 PM EDT	Mesoscale Discussion	SPC	Allen, Ballard, Butler, Caldwell, Calloway, Carlisle and 24 more	63 min
May 27, 7:22 PM EDT	Mesoscale Discussion	SPC	Anderson, Bath, Bourbon, Carroll, Clark, Fayette and 16 more	53 min
May 27, 5:14 PM EDT	Mesoscale Discussion	SPC	Athens, Belmont, Coshocton, Delaware, Fairfield, Franklin and 22 more	91 min
May 27, 5:45 PM EDT	Severe Thunderstorm Watch	SPC	Athens, Belmont, Carroll, Coshocton, Crawford, Delaware and 30 more	5 hr
May 27, 7:13 PM EDT	Mesoscale Discussion	SPC	Athens, Belmont, Coshocton, Delaware, Fairfield, Franklin and 23 more	92 min
May 27, 3:07 PM EDT	Mesoscale Discussion	SPC	Berkeley, Hampshire, Hardy, Jefferson, Morgan	113 min

Nearby

Mesoscale Discussions in Kentucky, 2004 Mesoscale Discussions in West Virginia, 2004 Mesoscale Discussions in Ohio, 2004 Every mesoscale discussion in 2004

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.