Alert archive / North Carolina / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 463
The Storm Prediction Center issued this severe thunderstorm watch at Jun 29, 2007, 1:39 PM EDT for 60 counties in North Carolina; 10 counties in Virginia. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2007, 1:39 PM EDT (17:39 UTC)
- Expired
- Jun 29, 2007, 9:55 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 70 counties
Alamance County, NC, Anson County, NC, Beaufort County, NC, Bertie County, NC, Cabarrus County, NC, Camden County, NC, Chatham County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Currituck County, NC, Dare County, NC, Davidson County, NC, Davie County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Hoke County, NC, Hyde County, NC, Iredell 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, Northampton County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Person County, NC, Pitt County, NC, Randolph County, NC, Richmond County, NC, Rowan County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Tyrrell County, NC, Union County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, City of Chesapeake, VA, City of Emporia, VA, City of Franklin, VA, City of Norfolk, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, Greensville County, VA, Isle of Wight County, VA, Southampton County, VA
The radar
The Raleigh/Durham radar (KRAX), 84 km from the middle of the area, began a volume at 17:40 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- 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
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:55 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 42 min |
| Jun 29, 2:13 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 62 min |
| Jun 29, 2:20 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 40 min |
| Jun 29, 2:44 PM EDT | Severe Thunderstorm Warning | MHX | Martin, Pitt | 61 min |
| Jun 29, 2:48 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 33 min |
| Jun 29, 2:53 PM EDT | Severe Thunderstorm Warning | RAH | Johnston | 67 min |
| Jun 29, 3:13 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 21 min |
| Jun 29, 3:29 PM EDT | Severe Thunderstorm Warning | RAH | Davidson | 18 min |
| Jun 29, 3:36 PM EDT | Severe Thunderstorm Warning | MHX | Greene | 39 min |
| Jun 29, 3:37 PM EDT | Severe Thunderstorm Warning | MHX | Tyrrell | 23 min |
| Jun 29, 3:37 PM EDT | Severe Thunderstorm Warning | RAH | Hoke, Moore | 23 min |
| Jun 29, 3:37 PM EDT | Severe Thunderstorm Warning | RAH | Hoke, Moore | 23 min |
| Jun 29, 3:51 PM EDT | Severe Thunderstorm Warning | MHX | Dare | 39 min |
| Jun 29, 4:07 PM EDT | Severe Thunderstorm Warning | MHX | Tyrrell | 23 min |
| Jun 29, 4:32 PM EDT | Severe Thunderstorm Warning | MHX | Hyde | 28 min |
| Jun 29, 5:20 PM EDT | Severe Thunderstorm Warning | RAH | Moore | 55 min |
| Jun 29, 5:48 PM EDT | Flash Flood Warning | RAH | Moore | 3 hr |
| Jun 29, 6:32 PM EDT | Severe Thunderstorm Warning | AKQ | City of Suffolk | 28 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, 5.7 hours before the alert went out and 142 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
- 719 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 854 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 48 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 |
|---|---|---|---|---|
| Jun 29, 12:07 PM EDT | Mesoscale Discussion | SPC | Alexander, Buncombe, Burke, Caldwell, Catawba, Clay and 17 more | 53 min |
| Jun 29, 4:00 PM EDT | Mesoscale Discussion | SPC | Beaufort, Bladen, Craven, Cumberland, Duplin, Greene and 17 more | 90 min |
| Jun 29, 7:38 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Beaufort, Bertie, Bladen, Cabarrus and 61 more | 67 min |
Nearby
Severe Thunderstorm Watches in North Carolina, 2007Severe Thunderstorm Watches in Virginia, 2007Every severe thunderstorm watch in 2007
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.