Alert archive / Virginia / Mesoscale Discussions in 2003
Mesoscale Discussion 659
The Storm Prediction Center issued this mesoscale discussion at May 1, 2003, 11:22 AM EDT for 6 states. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- May 1, 2003, 11:22 AM EDT (15:22 UTC)
- Expired
- May 1, 2003, 1:15 PM EDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
All 112 counties
Banks County, GA, Barrow County, GA, Dawson County, GA, Fannin County, GA, Forsyth County, GA, Franklin County, GA, Gilmer County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hart County, GA, Jackson County, GA, Lumpkin County, GA, Madison County, GA, Pickens County, GA, Rabun County, GA, Stephens County, GA, Towns County, GA, Union County, GA, White County, GA, Alexander County, NC, Alleghany County, NC, Ashe County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Catawba County, NC, Cherokee County, NC, Clay County, NC, Cleveland County, NC, Davie County, NC, Forsyth County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Iredell County, NC, Jackson County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rockingham County, NC, Rutherford County, NC, Stokes County, NC, Surry County, NC, Swain County, NC, Transylvania County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Anderson County, SC, Greenville County, SC, Oconee County, SC, Pickens County, SC, Spartanburg County, SC, Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Monroe County, TN, Polk County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, Alleghany County, VA, Amherst County, VA, Bath County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Campbell County, VA, Carroll County, VA, City of Bristol, VA, City of Buena Vista, VA, City of Covington, VA, City of Galax, VA, City of Lexington, VA, City of Lynchburg, VA, City of Martinsville, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Giles County, VA, Grayson County, VA, Henry County, VA, Montgomery County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Russell County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wythe County, VA, Greenbrier County, WV, McDowell County, WV, Mercer County, WV, Monroe County, WV, Summers County, WV
The radar
The Greer radar (KGSP), 129 km from the middle of the area, began a volume at 15:21 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.4 hours before the alert went out and 380 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1507 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 10:35 AM EDT | Severe Thunderstorm Watch | SPC | Lake, Obion | 5 hr |
| May 1, 12:23 PM EDT | Mesoscale Discussion | SPC | Benton, Carroll, Cheatham, Chester, Crockett, Decatur and 22 more | 2 hr |
| May 1, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Cheatham, Chester, Crockett, Decatur and 25 more | 5 hr |
| May 1, 3:35 PM EDT | Severe Thunderstorm Watch | SPC | Bedford, Bledsoe, Cannon, Clay, Coffee, Cumberland and 28 more | 5 hr |
| May 1, 6:11 PM EDT | Mesoscale Discussion | SPC | Bedford, Cannon, Clay, Coffee, Cumberland, Davidson and 25 more | 94 min |
| May 1, 7:10 PM EDT | Mesoscale Discussion | SPC | Bedford, Cannon, Cheatham, Chester, Clay, Coffee and 40 more | 95 min |
| May 1, 6:02 PM EDT | Mesoscale Discussion | SPC | Arlington, Augusta, Clarke, Culpeper, Fairfax, Fauquier and 18 more | 3 hr |
| May 1, 1:50 PM EDT | Severe Thunderstorm Watch | SPC | Brooke, Ohio | 5 hr |
| May 1, 4:10 PM EDT | Mesoscale Discussion | SPC | Brooke, Hancock, Ohio | 95 min |
Nearby
Mesoscale Discussions in Virginia, 2003Mesoscale Discussions in North Carolina, 2003Mesoscale Discussions in Georgia, 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.