Alert archive / North Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 1959
The Storm Prediction Center issued this mesoscale discussion at Jul 22, 2003, 3:15 PM EDT for 42 counties in North Carolina; 8 counties in South Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 22, 2003, 3:15 PM EDT (19:15 UTC)
- Expired
- Jul 22, 2003, 5:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Anson County, NC, Beaufort County, NC, Bertie County, NC, Bladen County, NC, Cabarrus County, NC, Chatham County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Hoke County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Onslow County, NC, Pamlico County, NC, Pitt County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Wake County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Florence County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Marlboro County, SC
The radar
The Raleigh/Durham radar (KRAX), 77 km from the middle of the area, began a volume at 19:15 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, 7.3 hours before the alert went out and 139 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
- 323 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -114 m²/s²
- 0-3 km storm-relative helicity
- -74 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 |
|---|---|---|---|---|
| Jul 22, 12:31 PM EDT | Mesoscale Discussion | SPC | Clay, Jackson, Macon, Transylvania | 119 min |
| Jul 22, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | Buncombe, Cherokee, Clay, Haywood, Henderson, Jackson and 4 more | 5 hr |
| Jul 22, 1:19 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Beaufort, Bertie, Bladen, Cabarrus and 58 more | 86 min |
| Jul 22, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | Alamance, Anson, Cabarrus, Caswell, Chatham, Davidson and 20 more | 5 hr |
| Jul 22, 7:45 PM EDT | Mesoscale Discussion | SPC | Chatham, Cumberland, Durham, Edgecombe, Franklin, Granville and 14 more | 90 min |
| Jul 22, 3:59 PM EDT | Mesoscale Discussion | SPC | Abbeville, Aiken, Allendale, Bamberg, Barnwell, Calhoun and 16 more | 2 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.