Alert archive / North Carolina / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 703
The Storm Prediction Center issued this severe thunderstorm watch at Jul 9, 2003, 6:00 PM EDT for 36 counties in North Carolina. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2003, 6:00 PM EDT (22:00 UTC)
- Expired
- Jul 9, 2003, 10:00 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 36 counties
Alamance County, NC, Beaufort County, NC, Bertie County, NC, Camden County, NC, Chatham County, NC, Chowan County, NC, Currituck County, NC, Dare County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Hyde County, NC, Johnston County, NC, Lee County, NC, Martin County, NC, Montgomery County, NC, Nash County, NC, Northampton County, NC, Orange County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Randolph County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC
The radar
The Raleigh/Durham radar (KRAX), 47 km from the middle of the area, began a volume at 22:02 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.
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 6:32 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Nash | 43 min |
| Jul 9, 6:58 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 32 min |
| Jul 9, 7:15 PM EDT | Severe Thunderstorm Warning | RAH | Randolph | 15 min |
| Jul 9, 7:32 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Johnston | 28 min |
| Jul 9, 8:22 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Sampson | 23 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 10.0 hours before the alert went out and 155 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
- 2758 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1014 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 10:28 AM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Alleghany, Caldwell, Caswell, Davidson and 12 more | 92 min |
| Jul 9, 12:34 PM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Alleghany, Ashe, Avery, Buncombe and 34 more | 116 min |
| Jul 9, 5:38 PM EDT | Mesoscale Discussion | SPC | Alamance, Beaufort, Bertie, Camden, Chatham, Chowan and 26 more | 97 min |
Nearby
Severe Thunderstorm Watches in North Carolina, 2003Every severe thunderstorm watch 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.