Alert archive / Kentucky / Mesoscale Discussions in 2003

Mesoscale Discussion 1735

July 9, 200332 counties in Kentucky; Wise County, Virginia

The Storm Prediction Center issued this mesoscale discussion at Jul 9, 2003, 11:55 AM CDT for 32 counties in Kentucky; Wise County, Virginia. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jul 9, 2003, 11:55 AM CDT (16:55 UTC)
Expired
Jul 9, 2003, 3:00 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
All 33 counties

Adair County, KY, Boyle County, KY, Breathitt County, KY, Casey County, KY, Clay County, KY, Estill County, KY, Floyd County, KY, Garrard County, KY, Green County, KY, Hart County, KY, Jackson County, KY, Knott County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Mercer County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Taylor County, KY, Washington County, KY, Wolfe County, KY, Wise County, VA

The radar

The Jackson,KY radar (KJKL), 74 km from the middle of the area, began a volume at 16:58 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, 4.9 hours before the alert went out and 228 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 2003-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 joules per kilogram.LCLLFCEL10008507005003002001001 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 2003-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -96 square meters per square second.193958Sfc1 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
52 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-96 m²/s²
0-3 km storm-relative helicity
3 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.

IssuedProductOfficeCountiesLasted
Jul 8, 8:37 PM CDTMesoscale DiscussionSPCBoone, Bracken, Campbell, Carroll, Gallatin, Grant and 10 more2 hr
Jul 9, 3:12 PM CDTMesoscale DiscussionSPCBoone, Campbell, Kenton33 min
Jul 9, 3:35 PM CDTSevere Thunderstorm WatchSPCBoone, Boyd, Bracken, Campbell, Carroll, Carter and 13 more5 hr
Jul 9, 6:02 PM CDTMesoscale DiscussionSPCBath, Boone, Bourbon, Boyd, Bracken, Campbell and 23 more88 min
Jul 8, 7:12 PM CDTMesoscale DiscussionSPCAugusta, Bath, Clarke, Culpeper, Fairfax, Fauquier and 19 more93 min
Jul 8, 7:30 PM CDTSevere Thunderstorm WatchSPCClarke, Culpeper, Fauquier, Frederick, Highland, Loudoun and 12 more4 hr
Jul 8, 10:16 PM CDTMesoscale DiscussionSPCAmelia, Appomattox, Brunswick, Buckingham, Campbell, Charlotte and 29 more119 min
Jul 9, 9:28 AM CDTMesoscale DiscussionSPCAlbemarle, Alleghany, Amelia, Amherst, Appomattox, Arlington and 73 more92 min
Jul 9, 10:50 AM CDTSevere Thunderstorm WatchSPCAlbemarle, Alleghany, Amherst, Appomattox, Arlington, Augusta and 69 more6 hr
Jul 9, 11:09 AM CDTMesoscale DiscussionSPCAccomack, Amelia, Caroline, Charles City, Charlotte, Chesterfield and 37 more96 min
Jul 9, 12:15 PM CDTSevere Thunderstorm WatchSPCAccomack, Amelia, Brunswick, Caroline, Charles City, Charlotte and 50 more8 hr
Jul 9, 1:47 PM CDTMesoscale DiscussionSPCAlbemarle, Alleghany, Amherst, Arlington, Augusta, Bath and 59 more88 min
Jul 9, 2:48 PM CDTMesoscale DiscussionSPCAccomack, Amelia, Brunswick, Caroline, Charles City, Charlotte and 48 more117 min
Jul 9, 6:36 PM CDTMesoscale DiscussionSPCAccomack, Brunswick, Caroline, Charles City, Chesterfield, Dinwiddie and 32 more114 min

Nearby

Mesoscale Discussions in Kentucky, 2003Mesoscale Discussions in Virginia, 2003Every mesoscale discussion in 2003

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.