Alert archive / Kentucky / Mesoscale Discussions in 2014

Mesoscale Discussion 1825

October 7, 201415 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at Oct 7, 2014, 3:50 PM EDT for 15 counties in Kentucky. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued: Oct 7, 2014, 3:50 PM EDT (19:50 UTC)
Expired: Oct 7, 2014, 4:45 PM EDT
In force: 55 min
Issued by: the Storm Prediction Center

Counties Bath County, KY, Bourbon County, KY, Carter County, KY, Elliott County, KY, Fayette County, KY, Fleming County, KY, Greenup County, KY, Harrison County, KY, Lewis County, KY, Mason County, KY, Menifee County, KY, Montgomery County, KY, Nicholas County, KY, Robertson County, KY, Rowan County, KY

The radar

The Jackson,KY radar (KJKL), 88 km from the middle of the area, began a volume at 19:53 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.8 hours before the alert went out and 124 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: 1440 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 269 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
Oct 7, 1:20 PM EDT	Mesoscale Discussion	SPC	Anderson, Bath, Boone, Bourbon, Boyd, Boyle and 52 more	115 min
Oct 7, 2:02 PM EDT	Tornado Watch	SPC	Anderson, Bath, Boone, Bourbon, Boyd, Boyle and 69 more	9 hr
Oct 7, 4:54 PM EDT	Mesoscale Discussion	SPC	Adair, Anderson, Barren, Bath, Boone, Bourbon and 67 more	96 min
Oct 7, 7:59 PM EDT	Mesoscale Discussion	SPC	Anderson, Bath, Bourbon, Boyd, Boyle, Breathitt and 52 more	61 min

Nearby

Mesoscale Discussions in Kentucky, 2014 Every mesoscale discussion in 2014

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.