Alert archive / North Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 712
The Storm Prediction Center issued this mesoscale discussion at May 3, 2003, 6:15 PM EDT for 40 counties in North Carolina; 20 counties in South Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 3, 2003, 6:15 PM EDT (22:15 UTC)
- Expired
- May 3, 2003, 8:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Alamance County, NC, Alexander County, NC, Anson County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Guilford County, NC, Harnett County, NC, Henderson County, NC, Hoke County, NC, Iredell County, NC, Johnston County, NC, Lee County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Transylvania County, NC, Union County, NC, Wilkes County, NC, Yadkin County, NC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Fairfield County, SC, Greenville County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Marlboro County, SC, Newberry County, SC, Oconee County, SC, Pickens County, SC, Richland County, SC, Spartanburg County, SC, Union County, SC, York County, SC
The radar
The Greer radar (KGSP), 127 km from the middle of the area, began a volume at 22:16 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.3 hours before the alert went out and 128 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
- 3 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 3, 2:57 PM EDT | Mesoscale Discussion | SPC | Alexander, Anson, Ashe, Avery, Buncombe, Burke and 35 more | 3 hr |
| May 3, 3:20 PM EDT | Severe Thunderstorm Watch | SPC | Alexander, Alleghany, Anson, Ashe, Avery, Buncombe and 31 more | 5 hr |
| May 3, 6:40 PM EDT | Severe Thunderstorm Watch | SPC | Anson, Cabarrus, Gaston, Hoke, Mecklenburg, Montgomery and 7 more | 4 hr |
Nearby
Mesoscale Discussions in North Carolina, 2003Mesoscale Discussions in South Carolina, 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.