Alert archive / North Carolina / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 792
The Storm Prediction Center issued this severe thunderstorm watch at Aug 2, 2008, 12:02 PM EDT for 56 counties in North Carolina. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2008, 12:02 PM EDT (16:02 UTC)
- Expired
- Aug 2, 2008, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 70 kt
All 56 counties
Alamance County, NC, Alexander County, NC, Alleghany County, NC, Anson County, NC, Ashe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Gaston County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Iredell County, NC, Johnston County, NC, Lee County, NC, Lincoln County, NC, McDowell County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Union County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Watauga County, NC, Wayne County, NC, Wilkes County, NC, Wilson County, NC, Yadkin County, NC
The radar
The Roanoke radar (KFCX), 117 km from the middle of the area, began a volume at 16:04 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:32 PM EDT | Severe Thunderstorm Warning | RNK | Caswell, Rockingham | 29 min |
| Aug 2, 12:52 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Ashe, Surry, Wilkes | 53 min |
| Aug 2, 12:57 PM EDT | Severe Thunderstorm Warning | RNK | Caswell, Rockingham, Stokes | 67 min |
| Aug 2, 1:39 PM EDT | Severe Thunderstorm Warning | RNK | Rockingham, Stokes, Surry | 79 min |
| Aug 2, 1:44 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Orange, Person | 46 min |
| Aug 2, 1:56 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes, Yadkin | 67 min |
| Aug 2, 2:01 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Ashe | 59 min |
| Aug 2, 2:08 PM EDT | Severe Thunderstorm Warning | RAH | Richmond | 67 min |
| Aug 2, 2:14 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth | 61 min |
| Aug 2, 2:33 PM EDT | Severe Thunderstorm Warning | GSP | Alexander | 42 min |
| Aug 2, 2:49 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Ashe, Wilkes | 86 min |
| Aug 2, 3:11 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth, Guilford, Randolph | 64 min |
| Aug 2, 3:47 PM EDT | Severe Thunderstorm Warning | GSP | Catawba | 31 min |
| Aug 2, 3:49 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Richmond | 33 min |
| Aug 2, 3:51 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 39 min |
| Aug 2, 3:54 PM EDT | Severe Thunderstorm Warning | RAH | Guilford, Randolph | 51 min |
| Aug 2, 4:00 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes, Yadkin | 60 min |
| Aug 2, 4:13 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 33 min |
| Aug 2, 4:21 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wayne | 39 min |
| Aug 2, 4:31 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes, Yadkin | 45 min |
| Aug 2, 4:32 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 22 min |
| Aug 2, 4:41 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 79 min |
| Aug 2, 4:57 PM EDT | Severe Thunderstorm Warning | GSP | Alexander | 36 min |
| Aug 2, 5:01 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Gaston, Lincoln | 59 min |
| Aug 2, 5:02 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Richmond | 43 min |
| Aug 2, 5:13 PM EDT | Severe Thunderstorm Warning | GSP | Union | 62 min |
| Aug 2, 5:28 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Catawba, Iredell, Lincoln | 62 min |
| Aug 2, 5:35 PM EDT | Severe Thunderstorm Warning | GSP | McDowell, Rutherford | 55 min |
| Aug 2, 5:40 PM EDT | Severe Thunderstorm Warning | RAH | Montgomery, Moore, Richmond | 50 min |
| Aug 2, 5:44 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Richmond | 61 min |
| Aug 2, 6:08 PM EDT | Flash Flood Warning | RAH | Anson | 2 hr |
| Aug 2, 6:44 PM EDT | Severe Thunderstorm Warning | RAH | Anson | 61 min |
| Aug 2, 7:03 PM EDT | Severe Thunderstorm Warning | RAH | Richmond, Scotland | 57 min |
| Aug 2, 7:29 PM EDT | Flash Flood Warning | RAH | Scotland | 93 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 4.0 hours before the alert went out and 14 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
- 617 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 1463 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 11:45 AM EDT | Mesoscale Discussion | SPC | Alamance, Cabarrus, Chatham, Davidson, Durham, Guilford and 12 more | 30 min |
| Aug 2, 2:30 PM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Alleghany, Anson, Ashe, Avery and 55 more | 90 min |
| Aug 2, 6:26 PM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Alleghany, Anson, Ashe, Avery and 56 more | 94 min |
| Aug 2, 7:22 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 25 more | 6 hr |
Nearby
Severe Thunderstorm Watches in North Carolina, 2008Every severe thunderstorm watch in 2008
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.