Alert archive / North Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 1166
The Storm Prediction Center issued this mesoscale discussion at May 31, 2003, 1:25 PM EDT for 22 counties in North Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2003, 1:25 PM EDT (17:25 UTC)
- Expired
- May 31, 2003, 3:30 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 22 counties
Beaufort County, NC, Bertie County, NC, Camden County, NC, Chowan County, NC, Craven County, NC, Edgecombe County, NC, Franklin County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Johnston County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC
The radar
The Raleigh/Durham radar (KRAX), 82 km from the middle of the area, began a volume at 17:28 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, 5.4 hours before the alert went out and 113 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
- 31 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1356 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 31, 12:50 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Cabarrus, Catawba, Chatham, Cleveland and 16 more | 115 min |
| May 31, 2:05 PM EDT | Tornado Watch | SPC | Alamance, Anson, Beaufort, Bertie, Cabarrus, Camden and 57 more | 6 hr |
| May 31, 2:41 PM EDT | Mesoscale Discussion | SPC | Columbus, Robeson | 2 hr |
| May 31, 2:55 PM EDT | Tornado Watch | SPC | Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson and 1 more | 5 hr |
| May 31, 4:37 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Bladen, Chatham, Craven, Cumberland and 36 more | 113 min |
| May 31, 6:12 PM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Chatham, Columbus, Craven, Cumberland and 29 more | 93 min |
| May 31, 6:37 PM EDT | Mesoscale Discussion | SPC | Bertie, Camden, Chowan, Currituck, Gates, Halifax and 6 more | 83 min |
Nearby
Mesoscale Discussions in North 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.