Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 49, NWS Wakefield, VA

May 23, 2011Bertie County, North Carolina

NWS Wakefield, VA issued this tornado warning at May 23, 2011, 8:19 PM EDT for Bertie 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
May 23, 2011, 8:19 PM EDT (00:19 UTC)
Expired
May 23, 2011, 8:45 PM EDT
In force
26 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon

County Bertie County, NC

The radar

The Norfolk radar (KAKQ), 107 km from the middle of the area, began a volume at 00:20 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
May 23, 3:16 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 0.3 hours before the alert went out and 139 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 2011-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2281 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 2011-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
2281 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
500 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

060 
WFUS51 KAKQ 240019
TORAKQ
NCC015-240045-
/O.NEW.KAKQ.TO.W.0049.110524T0019Z-110524T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
819 PM EDT MON MAY 23 2011

THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL BERTIE COUNTY IN NORTHEAST NORTH CAROLINA...

* UNTIL 845 PM EDT

* AT 815 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR LEWISTON WOODVILLE...AND MOVING SOUTHEAST AT
  25 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  WINDSOR AROUND 845 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE QUITSNA.

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 3602 7689 3589 7700 3607 7720 3612 7716
TIME...MOT...LOC 0019Z 305DEG 23KT 3606 7715

$$

JM
2 follow-up statements
999 
WWUS51 KAKQ 240030
SVSAKQ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
830 PM EDT MON MAY 23 2011

NCC015-240045-
/O.CON.KAKQ.TO.W.0049.000000T0000Z-110524T0045Z/
BERTIE NC-
830 PM EDT MON MAY 23 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BERTIE COUNTY
UNTIL 845 PM EDT...

AT 829 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES SOUTHEAST OF LEWISTON WOODVILLE...MOVING
SOUTHEAST AT 30 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  WINDSOR AROUND 845 PM EDT.

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 3605 7715 3608 7713 3602 7689 3590 7699
TIME...MOT...LOC 0030Z 306DEG 25KT 3603 7709

$$

JM
669 
WWUS51 KAKQ 240045
SVSAKQ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
845 PM EDT MON MAY 23 2011

NCC015-240056-
/O.EXP.KAKQ.TO.W.0049.000000T0000Z-110524T0045Z/
BERTIE NC-
845 PM EDT MON MAY 23 2011

...THE TORNADO WARNING FOR CENTRAL BERTIE COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY
FROM HAIL OR DAMAGING WINDS.

LAT...LON 3605 7715 3608 7713 3602 7689 3590 7699
TIME...MOT...LOC 0030Z 306DEG 25KT 3603 7709

$$

JM

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 8:05 PM EDTSpecial Weather StatementAKQBertie, Chowan, Gates, Perquimans55 min
May 23, 8:16 PM EDTSevere Thunderstorm WarningAKQBertie, Chowan, Hertford, Perquimans30 min
May 23, 8:45 PM EDTSevere Thunderstorm WarningAKQBertie45 min
May 23, 9:33 PM EDTSpecial Weather StatementAKQBertie57 min
May 24, 3:23 PM EDTSevere Thunderstorm WarningAKQGates, Hertford, Northampton52 min
May 24, 3:57 PM EDTSpecial Weather StatementAKQChowan, Gates, Hertford48 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.