Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 44, NWS Newport/Morehead City, NC

August 29, 2011Dare County, Hyde County, Tyrrell County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Aug 29, 2011, 4:40 PM EDT for Dare County, Hyde County, Tyrrell County, North Carolina. It was in force for 50 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, 4:40 PM EDT (20:40 UTC)
Expired
Aug 29, 2011, 5:30 PM EDT
In force
50 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon

Counties Dare County, NC, Hyde County, NC, Tyrrell County, NC

The radar

The Morehead City radar (KMHX), 122 km from the middle of the area, began a volume at 20:41 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, 8.7 hours before the alert went out and 122 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.

852 
WFUS52 KMHX 292040
TORMHX
NCC055-095-177-292130-
/O.NEW.KMHX.TO.W.0044.110829T2040Z-110829T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
440 PM EDT MON AUG 29 2011

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN TYRRELL COUNTY IN EASTERN NORTH CAROLINA
  NORTHEASTERN MAINLAND HYDE COUNTY IN EASTERN NORTH CAROLINA
  WEST CENTRAL MAINLAND DARE COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 530 PM EDT

* AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES SOUTHEAST OF KILKENNY...OR 12 MILES NORTHWEST OF
  ENGELHARD...MOVING EAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RURAL CENTRAL MAINLAND HYDE COUNTY
  RURAL SOUTHEASTERN TYRRELL COUNTY
  RURAL EASTERN MAINLAND HYDE COUNTY
  RURAL SOUTHWESTERN MAINLAND DARE COUNTY

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...VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. IF NO SHELTER IS
AVAILABLE LIE DOWN IN A LOW LYING AREA. PROTECT YOURSELF FROM FLYING
DEBRIS.

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING...1...8 0 0...8 8 9...6 8 8 9 OR NOTIFY YOUR LOCAL LAW
ENFORCEMENT AGENCY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
MONDAY EVENING FOR EASTERN NORTH CAROLINA.

&&

LAT...LON 3554 7592 3553 7594 3550 7597 3550 7624
      3568 7626 3571 7605 3569 7603 3566 7604
      3565 7603 3568 7601 3571 7601 3573 7592
      3556 7590
TIME...MOT...LOC 2040Z 264DEG 9KT 3560 7614

$$

11
1 follow-up statement
650 
WWUS52 KMHX 292103
SVSMHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
503 PM EDT MON AUG 29 2011

NCC055-095-177-292130-
/O.CON.KMHX.TO.W.0044.000000T0000Z-110829T2130Z/
TYRRELL NC-MAINLAND HYDE NC-MAINLAND DARE NC-
503 PM EDT MON AUG 29 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR WEST
CENTRAL MAINLAND DARE...NORTHEASTERN MAINLAND HYDE AND SOUTHEASTERN
TYRRELL COUNTIES...

AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED 9 MILES EAST 
OF KILKENNY...OR 9 MILES NORTHWEST OF ENGELHARD...MOVING EAST AT 10 
MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTIES.

WHEN IT IS SAFE TO DO SO...PLEASE CALL IN YOUR REPORTS OF PENNY OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 0 0...8 8 9...6 8 8 9.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
MONDAY EVENING FOR EASTERN NORTH CAROLINA.

LAT...LON 3554 7592 3553 7594 3550 7597 3550 7624
      3568 7626 3571 7605 3569 7603 3566 7604
      3565 7603 3568 7601 3571 7601 3573 7592
      3556 7590
TIME...MOT...LOC 2103Z 264DEG 9KT 3561 7607

$$

11

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 29, 3:30 PM EDTRiver Flood WarningMHXDuplin17 hr
Aug 29, 4:16 PM EDTSpecial Weather StatementMHXTyrrell44 min
Aug 29, 5:58 PM EDTSpecial Weather StatementMHXMartin47 min
Aug 29, 6:38 PM EDTSpecial Weather StatementMHXBeaufort52 min
Aug 29, 6:46 PM EDTSevere Thunderstorm WarningMHXMartin, Pitt59 min
Aug 29, 7:09 PM EDTSevere Thunderstorm WarningMHXBeaufort51 min
Aug 29, 7:40 PM EDTAreal Flood AdvisoryMHXBeaufort, Pitt95 min
Aug 29, 7:45 PM EDTSpecial Marine WarningMHX30 min
Aug 29, 7:48 PM EDTSevere Thunderstorm WarningMHXPitt42 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.