Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 9, NWS Newport/Morehead City, NC

August 24, 2012Carteret County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Aug 24, 2012, 8:42 PM EDT for Carteret County, North Carolina. It was in force for 18 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 24, 2012, 8:42 PM EDT (00:42 UTC)
Expired
Aug 24, 2012, 9:00 PM EDT
In force
18 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon

County Carteret County, NC

The radar

The Morehead City radar (KMHX), 36 km from the middle of the area, began a volume at 00:45 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 nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 0.7 hours before the alert went out and 36 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 2012-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 952 joules per kilogram.LCLEL10008507005003002001001 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 2012-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
952 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
483 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

435 
WFUS52 KMHX 250042
TORMHX
NCC031-250100-
/O.NEW.KMHX.TO.W.0009.120825T0042Z-120825T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
842 PM EDT FRI AUG 24 2012

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL CARTERET COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 900 PM EDT

* AT 840 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER CAPE LOOKOUT LIGHTHOUSE...OR 10 MILES SOUTHEAST OF
  BEAUFORT...MOVING SOUTHEAST AT 10 MPH.

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.

&&

LAT...LON 3462 7656 3467 7652 3467 7651 3468 7651
      3469 7650 3468 7648 3467 7648 3460 7652
      3458 7652 3458 7654
TIME...MOT...LOC 0042Z 298DEG 9KT 3463 7651

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 8:16 PM EDTSpecial Marine WarningMHX44 min
Aug 24, 8:29 PM EDTSevere Thunderstorm WarningMHXCarteret46 min
Aug 24, 8:35 PM EDTSpecial Marine WarningMHX40 min
Aug 24, 9:13 PM EDTSpecial Marine WarningMHX62 min
Aug 24, 9:52 PM EDTTornado WarningMHXCarteret, Hyde53 min
Aug 24, 10:13 PM EDTSpecial Marine WarningMHX62 min
Aug 24, 10:47 PM EDTSpecial Weather StatementMHXHyde28 min
Aug 24, 11:15 PM EDTSpecial Marine WarningMHX60 min
Aug 24, 11:16 PM EDTSpecial Weather StatementMHXHyde29 min
Aug 24, 11:50 PM EDTSpecial Weather StatementMHXHyde40 min
Aug 25, 12:35 AM EDTSpecial Weather StatementMHXDare55 min
Aug 25, 2:21 AM EDTSpecial Weather StatementMHXCraven54 min
Aug 25, 3:18 AM EDTSpecial Weather StatementMHXPamlico57 min
Aug 25, 4:15 AM EDTSpecial Weather StatementMHXCarteret, Pamlico60 min
Aug 25, 7:14 AM EDTSpecial Marine WarningMHX31 min

Nearby

Tornado Warnings in North Carolina, 2012Every tornado warning in 2012Tornadoes in 2012

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.