Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 52, NWS Wakefield, VA

August 27, 2011Chowan County, Perquimans County, North Carolina

NWS Wakefield, VA issued this tornado warning at Aug 27, 2011, 2:19 AM EDT for Chowan County, Perquimans County, North Carolina. It was in force for 26 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 27, 2011, 2:19 AM EDT (06:19 UTC)
Expired
Aug 27, 2011, 2:45 AM EDT
In force
26 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon

Counties Chowan County, NC, Perquimans County, NC

The radar

The Norfolk radar (KAKQ), 107 km from the middle of the area, began a volume at 06:22 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 27, 12:32 AM EDTTornado WatchSPC10 hr

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 6.3 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 00:00Z on 2011-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 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 00:00Z on 2011-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 361 square meters per square second.19395878Sfc1 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
148 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
445 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
361 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

180 
WFUS51 KAKQ 270619
TORAKQ
NCC041-143-270645-
/O.NEW.KAKQ.TO.W.0052.110827T0619Z-110827T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
219 AM EDT SAT AUG 27 2011

THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CHOWAN COUNTY IN NORTHEAST NORTH CAROLINA...
  SOUTHERN PERQUIMANS COUNTY IN NORTHEAST NORTH CAROLINA...

* UNTIL 245 AM EDT

* AT 217 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR HARVEY POINT...AND MOVING WEST AT 50 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  BURGESS AROUND 225 AM EDT.
  HERTFORD AND WINFALL AROUND 230 AM EDT.
  BELVIDERE AROUND 235 AM EDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE LIGHT NIXON
FORK...YEOPIM STATION...SMITHTOWN AND BEACH SPRINGS.

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 3612 7662 3629 7656 3623 7639 3624 7638
      3623 7638 3619 7626 3616 7624 3610 7626
      3613 7633 3613 7634 3610 7629 3609 7629
TIME...MOT...LOC 0620Z 108DEG 42KT 3614 7632

$$

GINGRICH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 10:21 PM EDTSpecial Weather StatementAKQBertie, Camden, Chowan, Currituck, Pasquotank, Perquimans54 min
Aug 27, 1:55 AM EDTAreal Flood WarningAKQBertie, Camden, Chowan, Currituck, Hertford, Pasquotank and 1 more5 hr
Aug 27, 2:20 AM EDTTornado WarningAKQCamden, Currituck25 min
Aug 27, 2:45 AM EDTTornado WarningAKQBertie, Chowan, Pasquotank, Perquimans30 min
Aug 27, 3:11 AM EDTTornado WarningAKQCamden, Chowan, Gates, Pasquotank, Perquimans19 min
Aug 27, 3:11 AM EDTTornado WarningAKQBertie, Chowan, Hertford34 min
Aug 27, 3:37 AM EDTTornado WarningAKQCamden, Currituck23 min
Aug 27, 4:37 AM EDTAreal Flood WarningAKQBertie, Camden, Chowan, Currituck, Gates, Hertford and 3 more6 hr
Aug 27, 6:21 AM EDTTornado WarningAKQGates13 min
Aug 27, 6:47 AM EDTAreal Flood WarningAKQBertie, Camden, Chowan, Currituck, Hertford, Pasquotank and 1 more4 hr
Aug 27, 7:18 AM EDTRiver Flood WarningAKQBertie5 days
Aug 27, 10:39 AM EDTAreal Flood WarningAKQBertie, Camden, Chowan, Currituck, Gates, Hertford and 3 more17 hr
Aug 27, 12:52 PM EDTAreal Flood WarningAKQNorthampton15 hr

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.