Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 64, NWS Wakefield, VA

August 29, 20114 counties in North Carolina

NWS Wakefield, VA issued this tornado warning at Aug 29, 2011, 4:29 PM EDT for 4 counties in North Carolina. It was in force for 31 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 29, 2011, 4:29 PM EDT (20:29 UTC)
Expired
Aug 29, 2011, 5:00 PM EDT
In force
31 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon

Counties Bertie County, NC, Chowan County, NC, Gates County, NC, Hertford County, NC

The radar

The Norfolk radar (KAKQ), 91 km from the middle of the area, began a volume at 20:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 29, 3:28 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.5 hours before the alert went out and 160 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.

Skew-T log-pSkew-T log-p diagram, Newport, NC at 12:00Z on 2011-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1590 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2011-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1590 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
913 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

794 
WFUS51 KAKQ 292029
TORAKQ
NCC015-041-073-091-292100-
/O.NEW.KAKQ.TO.W.0064.110829T2029Z-110829T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
429 PM EDT MON AUG 29 2011

THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BERTIE COUNTY IN NORTHEAST NORTH CAROLINA...
  NORTHWESTERN CHOWAN COUNTY IN NORTHEAST NORTH CAROLINA...
  EXTREME SOUTH CENTRAL GATES COUNTY IN NORTHEAST NORTH CAROLINA...
  SOUTHEASTERN HERTFORD COUNTY IN NORTHEAST NORTH CAROLINA...

* UNTIL 500 PM EDT

* AT 426 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR HARRELLSVILLE...AND MOVING EAST AT 10 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  HARRELLSVILLE AROUND 440 PM EDT.
  COLERAIN AROUND 455 PM EDT.
  ROCKYHOCK...TYNER AND RYLAND AROUND 500 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE NEWSOME
STORE...GOOSE POND...ARROWHEAD BEACH...MILL CROSSROADS AND SMALLS
CROSSROADS.

PLEASE SEND YOUR REPORTS OF HAIL AND OR WIND DAMAGE...INCLUDING TREES
OR LARGE LIMBS DOWNED...BY CALLING NOAA'S NATIONAL WEATHER SERVICE IN
WAKEFIELD AT...1...800...7 3 7...8 6 2 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE... OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3610 7663 3614 7673 3623 7673 3622 7674
      3615 7674 3615 7675 3621 7691 3635 7685
      3632 7656 3628 7657 3625 7659 3621 7659
TIME...MOT...LOC 2029Z 283DEG 10KT 3627 7684

$$

SCALORA
1 follow-up statement
870 
WWUS51 KAKQ 292052
SVSAKQ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
452 PM EDT MON AUG 29 2011

NCC015-041-073-091-292100-
/O.CON.KAKQ.TO.W.0064.000000T0000Z-110829T2100Z/
HERTFORD NC-CHOWAN NC-GATES NC-BERTIE NC-
452 PM EDT MON AUG 29 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN BERTIE...
EXTREME SOUTH CENTRAL GATES...NORTHWESTERN CHOWAN AND EXTREME
SOUTHEASTERN HERTFORD COUNTIES UNTIL 500 PM EDT...

AT 450 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR HARRELLSVILLE...MOVING EAST AT 10 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  ROCKYHOCK...TYNER AND RYLAND AROUND 500 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE ARROWHEAD
BEACH...MILL CROSSROADS...SMALLS CROSSROADS AND ICARIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

PLEASE SEND YOUR REPORTS OF HAIL AND OR WIND DAMAGE...INCLUDING TREES
OR LARGE LIMBS DOWNED...BY CALLING NOAA'S NATIONAL WEATHER SERVICE
AT...1...800...7 3 7...8 6 2 4 IN WAKEFIELD.

&&

LAT...LON 3614 7673 3623 7673 3615 7675 3617 7680
      3633 7670 3632 7656 3628 7657 3625 7659
      3621 7659 3610 7663
TIME...MOT...LOC 2052Z 283DEG 10KT 3626 7676

$$

SCALORA

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 29, 3:28 PM EDTSpecial Weather StatementAKQGates32 min
Aug 29, 3:37 PM EDTSpecial Weather StatementAKQHertford23 min
Aug 29, 3:46 PM EDTSpecial Weather StatementAKQNorthampton59 min
Aug 29, 3:55 PM EDTSevere Thunderstorm WarningAKQGates, Hertford50 min
Aug 29, 4:00 PM EDTTornado WarningAKQBertie, Hertford30 min
Aug 29, 4:49 PM EDTTornado WarningAKQBertie, Chowan26 min
Aug 29, 5:05 PM EDTSevere Thunderstorm WarningAKQBertie25 min
Aug 29, 5:22 PM EDTSpecial Weather StatementAKQChowan23 min
Aug 29, 5:43 PM EDTSpecial Weather StatementAKQBertie32 min

Nearby

Tornado Warnings in North Carolina, 2011Every tornado warning in 2011Tornadoes in 2011

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.