Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 53, NWS Wakefield, VA

August 27, 2011Camden County, Currituck County, North Carolina; City of Chesapeake, City of Virginia Beach, Virginia

NWS Wakefield, VA issued this tornado warning at Aug 27, 2011, 2:20 AM EDT for Camden County, Currituck County, North Carolina; City of Chesapeake, City of Virginia Beach, Virginia. It was in force for 25 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, 2:20 AM EDT (06:20 UTC)
Expired
Aug 27, 2011, 2:45 AM EDT
In force
25 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon

Counties Camden County, NC, Currituck County, NC, City of Chesapeake, VA, City of Virginia Beach, VA

The radar

The Norfolk radar (KAKQ), 82 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 6.3 hours before the alert went out and 170 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, Wallops Is Stn, VA at 00:00Z on 2011-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 901 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, Wallops Is Stn, VA at 00:00Z on 2011-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
901 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

102 
WFUS51 KAKQ 270620
TORAKQ
NCC029-053-VAC550-810-270645-
/O.NEW.KAKQ.TO.W.0053.110827T0620Z-110827T0645Z/

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

THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CAMDEN COUNTY IN NORTHEAST NORTH CAROLINA...
  NORTHWESTERN CURRITUCK COUNTY IN NORTHEAST NORTH CAROLINA...
  SOUTHEASTERN CITY OF CHESAPEAKE IN SOUTHEAST VIRGINIA...
  SOUTH CENTRAL CITY OF VIRGINIA BEACH IN SOUTHEAST VIRGINIA...

* 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 MOYOCK...AND MOVING WEST AT 40 MPH.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
  CAMDEN...NORTHWESTERN CURRITUCK...SOUTH CENTRAL CITY OF VIRGINIA
  BEACH AND SOUTHEASTERN CITY OF CHESAPEAKE COUNTIES.

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.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3655 7642 3666 7631 3657 7605 3647 7609
TIME...MOT...LOC 0620Z 105DEG 33KT 3654 7618

$$

05

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, 2:19 AM EDTTornado WarningAKQChowan, Perquimans26 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
Aug 27, 4:34 AM EDTTornado WarningAKQCity of Chesapeake, City of Virginia Beach26 min
Aug 27, 8:25 AM EDTTornado WarningAKQCity of Chesapeake, City of Virginia Beach35 min
Aug 27, 8:37 AM EDTSpecial Marine WarningAKQ83 min
Aug 27, 8:47 AM EDTTornado WarningAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach43 min
Aug 27, 10:11 AM EDTRiver Flood WarningAKQIsle of Wight, Southampton, City of Franklin, City of Suffolk8 days
Aug 27, 10:44 AM EDTTornado WarningAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach31 min
Aug 27, 11:41 AM EDTAreal Flood WarningAKQAccomack16 hr
Aug 27, 3:57 PM EDTAreal Flood WarningAKQAmelia, Brunswick, Chesterfield, Dinwiddie, Goochland, Greensville and 8 more12 hr
Aug 27, 5:54 PM EDTAreal Flood WarningAKQCaroline, Essex, Hanover, Henrico, King and Queen, King William and 1 more10 hr

Nearby

Tornado Warnings in North Carolina, 2011Tornado Warnings in Virginia, 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.