Alert archive / North Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 133
The Storm Prediction Center issued this mesoscale discussion at Feb 22, 2003, 2:22 PM EST for 14 counties in North Carolina; Georgetown County, Horry County, South Carolina; 12 counties in Virginia. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Feb 22, 2003, 2:22 PM EST (19:22 UTC)
- Expired
- Feb 22, 2003, 3:15 PM EST
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 28 counties
Bertie County, NC, Bladen County, NC, Columbus County, NC, Duplin County, NC, Edgecombe County, NC, Gates County, NC, Greene County, NC, Hertford County, NC, Lenoir County, NC, Martin County, NC, Pitt County, NC, Sampson County, NC, Wayne County, NC, Wilson County, NC, Georgetown County, SC, Horry County, SC, Accomack County, VA, City of Franklin, VA, City of Hampton, VA, City of Newport News, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, Isle of Wight County, VA, Mathews County, VA, Northampton County, VA, York County, VA
The radar
The Raleigh/Durham radar (KRAX), 67 km from the middle of the area, began a volume at 19:24 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
Newport, NC (KMHX), launched 12:00Z, 7.4 hours before the alert went out and 117 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
- 707 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.3
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 |
|---|---|---|---|---|
| Feb 22, 9:27 AM EST | Mesoscale Discussion | SPC | Alamance, Anson, Cabarrus, Chatham, Cumberland, Durham and 17 more | 63 min |
| Feb 22, 9:45 AM EST | Tornado Watch | SPC | Alamance, Anson, Bertie, Bladen, Cabarrus, Caswell and 34 more | 6 hr |
| Feb 22, 11:35 AM EST | Tornado Watch | SPC | Cherokee | 5 hr |
| Feb 22, 11:47 AM EST | Mesoscale Discussion | SPC | Beaufort, Bertie, Bladen, Camden, Chowan, Columbus and 33 more | 88 min |
| Feb 22, 2:40 PM EST | Tornado Watch | SPC | Beaufort, Bertie, Bladen, Camden, Carteret, Chowan and 24 more | 4 hr |
| Feb 22, 3:31 PM EST | Mesoscale Discussion | SPC | Cherokee, Graham, Madison, Swain | 119 min |
| Feb 22, 4:31 PM EST | Mesoscale Discussion | SPC | Beaufort, Currituck, Jones, Pender, Washington | 89 min |
| Feb 22, 6:09 PM EST | Mesoscale Discussion | SPC | Beaufort, Bertie, Bladen, Camden, Carteret, Chowan and 24 more | 66 min |
| Feb 22, 6:50 AM EST | Tornado Watch | SPC | Aiken, Allendale, Bamberg, Barnwell, Calhoun, Edgefield and 4 more | 5 hr |
| Feb 22, 10:59 AM EST | Mesoscale Discussion | SPC | Allendale, Bamberg, Barnwell, Beaufort, Berkeley, Charleston and 8 more | 61 min |
| Feb 22, 11:55 AM EST | Tornado Watch | SPC | Allendale, Bamberg, Beaufort, Berkeley, Calhoun, Charleston and 8 more | 5 hr |
| Feb 22, 1:49 PM EST | Mesoscale Discussion | SPC | Beaufort, Berkeley, Charleston, Georgetown, Williamsburg | 116 min |
| Feb 22, 12:55 PM EST | Tornado Watch | SPC | Brunswick, Dinwiddie, Greensville, Isle of Wight, James City, Northampton and 19 more | 3 hr |
| Feb 22, 4:35 PM EST | Severe Thunderstorm Watch | SPC | Buchanan, Dickenson, Lee, Russell, Scott, Wise and 1 more | 4 hr |
Nearby
Mesoscale Discussions in North Carolina, 2003Mesoscale Discussions in Virginia, 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.