Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 331, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 19, 2012, 8:55 AM EDT for 4 counties in North Carolina. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2012, 8:55 AM EDT (12:55 UTC)
- Expired
- Aug 19, 2012, 10:00 AM EDT
- In force
- 65 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Franklin County, NC, Halifax County, NC, Nash County, NC, Warren County, NC
The radar
The Raleigh/Durham radar (KRAX), 71 km from the middle of the area, began a volume at 12:58 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 0.9 hours before the alert went out and 162 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
- 303 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 598 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
787 WUUS52 KRAH 191255 SVRRAH NCC069-083-127-185-191400- /O.NEW.KRAH.SV.W.0331.120819T1255Z-120819T1400Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 855 AM EDT SUN AUG 19 2012 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN FRANKLIN COUNTY IN CENTRAL NORTH CAROLINA WEST CENTRAL HALIFAX COUNTY IN CENTRAL NORTH CAROLINA SOUTHERN WARREN COUNTY IN CENTRAL NORTH CAROLINA NORTH CENTRAL NASH COUNTY IN CENTRAL NORTH CAROLINA * UNTIL 1000 AM EDT * AT 854 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER INGLESIDE...OR 5 MILES NORTHEAST OF LOUISBURG...MOVING EAST AT 25 MPH. QUARTER SIZED HAIL AND WINDS IN EXCESS OF 58 MPH ARE LIKELY WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... CENTERVILLE... CASTALIA... AVENTON... PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RALEIGH. && LAT...LON 3640 7798 3610 7786 3603 7830 3620 7839 TIME...MOT...LOC 1255Z 259DEG 23KT 3615 7822 $$ 23
2 follow-up statements
286 WWUS52 KRAH 191319 SVSRAH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 919 AM EDT SUN AUG 19 2012 NCC069-083-127-185-191400- /O.CON.KRAH.SV.W.0331.000000T0000Z-120819T1400Z/ FRANKLIN NC-HALIFAX NC-WARREN NC-NASH NC- 919 AM EDT SUN AUG 19 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT FOR NORTH CENTRAL NASH...SOUTHERN WARREN...WEST CENTRAL HALIFAX AND NORTHEASTERN FRANKLIN COUNTIES... AT 916 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR CENTERVILLE...OR 14 MILES EAST OF LOUISBURG...MOVING EAST AT 25 MPH. HAZARDS IN THE WARNING INCLUDE... QUARTER SIZED HAIL. DAMAGING WINDS IN EXCESS OF 58 MPH. LOCATIONS IN THE PATH OF THE STORM INCLUDE... AVENTON AND ARCOLA. IF YOU OBSERVED DAMAGING WINDS OR LARGE HAIL...PLEASE NOTIFY YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RALEIGH. LAT...LON 3626 7824 3640 7798 3610 7786 3605 7819 TIME...MOT...LOC 1319Z 259DEG 23KT 3618 7803 $$ 23
132 WWUS52 KRAH 191351 SVSRAH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 951 AM EDT SUN AUG 19 2012 NCC069-083-127-185-191401- /O.EXP.KRAH.SV.W.0331.000000T0000Z-120819T1400Z/ FRANKLIN NC-HALIFAX NC-WARREN NC-NASH NC- 951 AM EDT SUN AUG 19 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NASH...SOUTHERN WARREN...WEST CENTRAL HALIFAX AND NORTHEASTERN FRANKLIN COUNTIES EXPIRES AT 1000 AM EDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA AND THE WARNING WILL BE ALLOWED TO EXPIRE. IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE 1...8 7 7...6 3 3...6 7 7 2...OR NOTIFY YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RALEIGH. LAT...LON 3626 7824 3640 7798 3610 7786 3605 7819 TIME...MOT...LOC 1351Z 259DEG 23KT 3622 7778 $$ 23
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:34 PM EDT | Special Weather Statement | RAH | Wayne | 11 min |
| Aug 19, 4:26 AM EDT | Special Weather Statement | RAH | Alamance, Chatham, Durham, Franklin, Granville, Guilford and 6 more | 2 hr |
| Aug 19, 4:49 AM EDT | Areal Flood Advisory | RAH | Alamance, Guilford, Orange, Randolph | 3 hr |
| Aug 19, 6:04 AM EDT | Special Weather Statement | RAH | Alamance, Chatham, Durham, Franklin, Granville, Guilford and 6 more | 116 min |
| Aug 19, 6:58 AM EDT | Special Weather Statement | RAH | Chatham, Durham, Franklin, Granville, Orange, Person and 2 more | 92 min |
| Aug 19, 7:37 AM EDT | Areal Flood Advisory | RAH | Guilford | 4 hr |
| Aug 19, 7:40 AM EDT | Special Weather Statement | RAH | Anson, Montgomery, Richmond, Stanly | 65 min |
| Aug 19, 8:03 AM EDT | Flash Flood Warning | RAH | Durham | 50 min |
| Aug 19, 8:24 AM EDT | Special Weather Statement | RAH | Franklin, Nash, Vance, Warren | 51 min |
| Aug 19, 8:47 AM EDT | Special Weather Statement | RAH | Anson, Richmond, Scotland | 58 min |
| Aug 19, 9:05 AM EDT | Severe Thunderstorm Warning | RAH | Halifax, Warren | 40 min |
| Aug 19, 9:09 AM EDT | Tornado Warning | RAH | Halifax | 23 min |
| Aug 19, 9:20 AM EDT | Areal Flood Advisory | RAH | Halifax, Vance, Warren | 3 hr |
| Aug 19, 9:25 AM EDT | Special Weather Statement | RAH | Montgomery, Moore | 65 min |
| Aug 19, 9:41 AM EDT | Flash Flood Warning | RAH | Halifax, Warren | 2 hr |
| Aug 19, 9:47 AM EDT | Special Weather Statement | RAH | Hoke, Richmond, Scotland | 58 min |
| Aug 19, 9:47 AM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Halifax, Nash | 58 min |
| Aug 19, 10:28 AM EDT | Special Weather Statement | RAH | Cumberland, Harnett, Hoke, Lee, Moore | 62 min |
| Aug 19, 11:22 AM EDT | Flash Flood Warning | RAH | Halifax, Warren | 2 hr |
| Aug 19, 11:26 AM EDT | Special Weather Statement | RAH | Cumberland, Harnett, Sampson | 64 min |
| Aug 19, 11:35 AM EDT | Areal Flood Advisory | RAH | Wake | 78 min |
| Aug 19, 12:26 PM EDT | Special Weather Statement | RAH | Sampson, Wayne | 64 min |
| Aug 19, 7:14 PM EDT | Special Weather Statement | RAH | Sampson | 46 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2012Every severe thunderstorm warning in 2012
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.