Alert archive / Kentucky / Mesoscale Discussions in 2003
Mesoscale Discussion 917
The Storm Prediction Center issued this mesoscale discussion at May 10, 2003, 3:27 PM EDT for 4 states. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2003, 3:27 PM EDT (19:27 UTC)
- Expired
- May 10, 2003, 5:00 PM EDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 64 counties
Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Rowan County, KY, Wolfe County, KY, Lawrence County, OH, Bland County, VA, Buchanan County, VA, Carroll County, VA, City of Bristol, VA, City of Galax, VA, City of Norton, VA, City of Radford, VA, Dickenson County, VA, Giles County, VA, Grayson County, VA, Lee County, VA, Pulaski County, VA, Russell County, VA, Scott County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wise County, VA, Wythe County, VA, Boone County, WV, Cabell County, WV, Clay County, WV, Fayette County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mercer County, WV, Mingo County, WV, Monroe County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Summers County, WV, Wayne County, WV, Webster County, WV, Wyoming County, WV
The radar
The Jackson,KY radar (KJKL), 80 km from the middle of the area, began a volume at 19:30 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, 7.5 hours before the alert went out and 255 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.
- Mixed-layer CAPE
- 149 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 754 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
230 ACUS11 KWNS 101927 SWOMCD SPC MCD 101927 WVZ000-VAZ000-NCZ000-TNZ000-KYZ000-OHZ000-102100- MESOSCALE DISCUSSION 0917 NWS STORM PREDICTION CENTER NORMAN OK 0227 PM CDT SAT MAY 10 2003 AREAS AFFECTED...ERN KY...SRN/CENTRAL WV AND WRN VA CONCERNING...TORNADO WATCH 339... VALID 101927Z - 102100Z CLUSTER OF SEVERE THUNDERSTORMS WILL CONTINUE TO TRACK EWD ACROSS SRN/CENTRAL WV AND INTO FAR WRN VA THROUGH 10/21Z. 19Z SFC ANALYSIS INDICATED A WARM FRONT REMAINED OVER FAR NERN KY/SRN WV FROM 20 SW HTS TO BKW. NEW CONVECTIVE DEVELOPMENT WILL REMAIN POSSIBLE ALONG THIS BOUNDARY OVER THE NEXT FEW HOURS...ESPECIALLY OVER SWRN VA...WHERE MID LEVEL FORCING WILL REMAIN THE STRONGEST. FARTHER WEST...SEVERE CONVECTION OVER FAR SERN IND/NCENTRAL KY WAS MOVING EWD AROUND 40 KTS AND ENTER THE NWRN PORTION OF WW 339 AROUND 21Z. AN ISOLATED SUPERCELL OVER FAR SCENTRAL WV APPEARS TO BE ANCHORED ON THE WARM FRONTAL BOUNDARY AND WILL POSE A THREAT FOR ISOLATED TORNADOES GIVEN STRONG LOW LEVEL SHEAR PRESENT OVER THE AREA ALONG THIS BOUNDARY. FARTHER NORTH OF THIS BOUNDARY...SEVERE THUNDERSTORMS WILL REMAIN ELEVATED WITH LARGE HAIL THE PRIMARY THREAT. ..CROSBIE.. 05/10/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RNK...RLX...MRX...JKL...ILN... 36558377 38728371 38668044 36508050
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 4:33 AM EDT | Mesoscale Discussion | SPC | Anderson, Bath, Boone, Bourbon, Boyd, Bracken and 45 more | 87 min |
| May 10, 10:25 AM EDT | Mesoscale Discussion | SPC | Breckinridge, Daviess, Hancock, Henderson, McLean, Union and 1 more | 2 hr |
| May 10, 11:12 AM EDT | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Greenup, Harrison, Kenton and 4 more | 2 hr |
| May 10, 11:54 AM EDT | Mesoscale Discussion | SPC | Ballard, Boone, Campbell, Carroll, Gallatin, Henderson and 4 more | 66 min |
| May 10, 12:00 PM EDT | Tornado Watch | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 5 more | 5 hr |
| May 10, 12:41 PM EDT | Mesoscale Discussion | SPC | Bell, Breathitt, Clay, Floyd, Harlan, Jackson and 13 more | 2 hr |
| May 10, 1:20 PM EDT | Tornado Watch | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 19 more | 6 hr |
| May 10, 2:04 PM EDT | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 5 more | 86 min |
| May 10, 3:46 PM EDT | Mesoscale Discussion | SPC | Boyd, Bracken, Campbell, Fleming, Grant, Greenup and 6 more | 59 min |
| May 10, 5:56 PM EDT | Mesoscale Discussion | SPC | Boyd, Breathitt, Carter, Elliott, Floyd, Greenup and 10 more | 94 min |
| May 10, 6:30 PM EDT | Tornado Watch | SPC | Boyd, Breathitt, Carter, Elliott, Floyd, Greenup and 11 more | 6 hr |
| May 9, 8:57 PM EDT | Mesoscale Discussion | SPC | Athens, Hocking, Meigs | 63 min |
| May 9, 11:40 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Hancock, Henry, Lucas and 5 more | 5 hr |
| May 10, 2:31 PM EDT | Mesoscale Discussion | SPC | Bedford, Brunswick, Campbell, Charlotte, Franklin, Greensville and 14 more | 89 min |
| May 10, 3:15 PM EDT | Tornado Watch | SPC | Bedford, Brunswick, Campbell, Charlotte, Craig, Dinwiddie and 18 more | 6 hr |
| May 10, 4:46 PM EDT | Mesoscale Discussion | SPC | Bedford, Brunswick, Campbell, Charlotte, Craig, Floyd and 16 more | 89 min |
Nearby
Mesoscale Discussions in Kentucky, 2003Mesoscale Discussions in Virginia, 2003Mesoscale Discussions in West 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.