Alert archive / Kentucky / Mesoscale Discussions in 2014

Mesoscale Discussion 1829

October 7, 2014Clark County, Floyd County, Harrison County, Indiana; 58 counties in Kentucky; 7 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at Oct 7, 2014, 7:59 PM EDT for Clark County, Floyd County, Harrison County, Indiana; 58 counties in Kentucky; 7 counties in West Virginia. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
Oct 7, 2014, 7:59 PM EDT (23:59 UTC)
Expired
Oct 7, 2014, 9:00 PM EDT
In force
61 min
Issued by
the Storm Prediction Center
All 68 counties

Clark County, IN, Floyd County, IN, Harrison County, IN, Anderson County, KY, Bath County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Breathitt County, KY, Bullitt County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Garrard County, KY, Grant County, KY, Greenup County, KY, Hardin County, KY, Harrison County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Larue County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Powell County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY, Wolfe County, KY, Woodford County, KY, Boone County, WV, Cabell County, WV, Lincoln County, WV, Logan County, WV, Mingo County, WV, Putnam County, WV, Wayne County, WV

The radar

The Jackson,KY radar (KJKL), 84 km from the middle of the area, began a volume at 00:02 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, 12.0 hours before the alert went out and 147 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, Cncnati-Daytn, OH at 12:00Z on 2014-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2014-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.19395878Sfc1 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
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.

IssuedProductOfficeCountiesLasted
Oct 7, 1:20 PM EDTMesoscale DiscussionSPCClark, Dearborn, Floyd, Harrison, Jackson, Jefferson and 6 more115 min
Oct 7, 2:02 PM EDTTornado WatchSPCClark, Crawford, Dearborn, Floyd, Franklin, Harrison and 7 more9 hr
Oct 7, 2:44 PM EDTMesoscale DiscussionSPCBenton, Carroll, Cass, Clay, Clinton, Fountain and 13 more2 hr
Oct 7, 4:25 PM EDTMesoscale DiscussionSPCAdams, Allen, Blackford, DeKalb, Delaware, Grant and 17 more2 hr
Oct 7, 4:54 PM EDTMesoscale DiscussionSPCClark, Crawford, Dearborn, Floyd, Harrison, Jefferson and 6 more96 min
Oct 7, 3:50 PM EDTMesoscale DiscussionSPCBath, Bourbon, Carter, Elliott, Fayette, Fleming and 9 more55 min
Oct 7, 6:12 PM EDTMesoscale DiscussionSPCBarbour, Braxton, Doddridge, Fayette, Gilmer, Greenbrier and 19 more93 min

Nearby

Mesoscale Discussions in Kentucky, 2014Mesoscale Discussions in West Virginia, 2014Mesoscale Discussions in Indiana, 2014Every 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.