Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 161, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 20, 2010, 5:13 PM EDT for 4 counties in North Carolina. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 20, 2010, 5:13 PM EDT (21:13 UTC)
- Expired
- Jul 20, 2010, 6:15 PM EDT
- In force
- 62 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Alamance County, NC, Chatham County, NC, Orange County, NC, Randolph County, NC
The radar
The Raleigh/Durham radar (KRAX), 85 km from the middle of the area, began a volume at 21:16 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 nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 9.2 hours before the alert went out and 147 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
- 922 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 707 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 3:17 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth | 58 min |
| Jul 20, 3:45 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth, Guilford | 60 min |
| Jul 20, 3:48 PM EDT | Special Weather Statement | RAH | Edgecombe, Halifax | 57 min |
| Jul 20, 4:02 PM EDT | Special Weather Statement | RAH | Anson | 43 min |
| Jul 20, 4:21 PM EDT | Special Weather Statement | RAH | Guilford, Randolph | 39 min |
| Jul 20, 4:41 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Davidson, Guilford, Randolph | 49 min |
| Jul 20, 4:48 PM EDT | Special Weather Statement | RAH | Sampson | 57 min |
| Jul 20, 5:20 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Montgomery, Randolph, Stanly | 40 min |
| Jul 20, 5:33 PM EDT | Severe Thunderstorm Warning | RAH | Person | 57 min |
| Jul 20, 6:05 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Durham, Orange, Wake | 40 min |
| Jul 20, 6:21 PM EDT | Special Weather Statement | RAH | Granville, Vance | 39 min |
| Jul 20, 6:26 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 49 min |
| Jul 20, 6:32 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Granville, Wake | 43 min |
| Jul 20, 6:40 PM EDT | Special Weather Statement | RAH | Nash | 65 min |
| Jul 20, 7:04 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Vance, Warren | 41 min |
| Jul 20, 7:06 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Johnston, Nash, Wake, Wilson | 39 min |
| Jul 20, 7:09 PM EDT | Areal Flood Advisory | RAH | Wake | 70 min |
| Jul 20, 7:21 PM EDT | Special Weather Statement | RAH | Lee | 54 min |
| Jul 20, 7:23 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Wilson | 52 min |
| Jul 20, 7:27 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Halifax, Warren | 30 min |
| Jul 20, 7:36 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Nash, Wilson | 39 min |
| Jul 20, 7:41 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Nash, Wayne, Wilson | 64 min |
| Jul 20, 7:42 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Lee | 48 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2010Every severe thunderstorm warning in 2010
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.