Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 8, NWS Newport/Morehead City, NC

August 19, 2012Dare County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Aug 19, 2012, 2:20 PM EDT for Dare County, North Carolina. 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 19, 2012, 2:20 PM EDT (18:20 UTC)
Expired
Aug 19, 2012, 2:45 PM EDT
In force
25 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon

County Dare County, NC

The radar

The Morehead City radar (KMHX), 167 km from the middle of the area, began a volume at 18:23 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 19, 10:33 AM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 6.3 hours before the alert went out and 167 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 2012-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1089 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 2012-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
1089 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

223 
WFUS52 KMHX 191820
TORMHX
NCC055-191845-
/O.NEW.KMHX.TO.W.0008.120819T1820Z-120819T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
220 PM EDT SUN AUG 19 2012

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL OUTER BANKS DARE COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 245 PM EDT

* AT 219 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A WATERSPOUT   7    
  MILES EAST OF MANNS HARBOR...MOVING NORTHEAST AT 10   MPH.         
  DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 MPH ARE ALSO       
  LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  WHALEBONE...NAGS HEAD...

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 600 PM EDT SUNDAY
EVENING FOR EASTERN NORTH CAROLINA.

&&

LAT...LON 3583 7555 3582 7560 3584 7559 3584 7560
      3580 7563 3583 7568 3586 7567 3593 7573
      3594 7573 3594 7570 3590 7563 3591 7562
      3596 7565 3597 7568 3600 7565
TIME...MOT...LOC 1820Z 232DEG 8KT 3588 7564

$$

2
1 follow-up statement
269 
WWUS52 KMHX 191846
SVSMHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
246 PM EDT SUN AUG 19 2012

NCC055-191856-
/O.EXP.KMHX.TO.W.0008.000000T0000Z-120819T1845Z/
OUTER BANKS DARE NC-
246 PM EDT SUN AUG 19 2012

...THE TORNADO WARNING FOR CENTRAL OUTER BANKS DARE COUNTY EXPIRES AT
245 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA AND 
THE WARNING WILL BE ALLOWED TO EXPIRE.

IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE
HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL
FREE 1...8 0 0...8 8 9...6 8 8 9...OR NOTIFY YOUR NEAREST LAW
ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL
WEATHER SERVICE FORECAST OFFICE IN NEWPORT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT SUNDAY
EVENING FOR EASTERN NORTH CAROLINA.

LAT...LON 3583 7555 3582 7560 3584 7559 3584 7560
      3580 7563 3583 7568 3586 7567 3593 7573
      3594 7573 3594 7570 3590 7563 3591 7562
      3596 7565 3597 7568 3600 7565
TIME...MOT...LOC 1820Z 232DEG 8KT 3588 7564

$$

2

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 11:39 PM EDTSpecial Weather StatementMHXCarteret, Craven, Duplin, Jones, Lenoir51 min
Aug 19, 12:34 AM EDTSpecial Weather StatementMHXCarteret, Pamlico41 min
Aug 19, 11:40 AM EDTSpecial Marine WarningMHX65 min
Aug 19, 11:48 AM EDTSpecial Marine WarningMHX57 min
Aug 19, 12:25 PM EDTSpecial Weather StatementMHXDuplin50 min
Aug 19, 12:44 PM EDTSpecial Weather StatementMHXWashington46 min
Aug 19, 12:47 PM EDTSpecial Marine WarningMHX43 min
Aug 19, 12:50 PM EDTSpecial Marine WarningMHX40 min
Aug 19, 12:53 PM EDTSpecial Weather StatementMHXOnslow52 min
Aug 19, 1:01 PM EDTSpecial Marine WarningMHX29 min
Aug 19, 1:16 PM EDTSpecial Weather StatementMHXBeaufort, Craven, Dare, Hyde, Jones, Pamlico and 1 more59 min
Aug 19, 1:19 PM EDTSpecial Weather StatementMHXGreene, Lenoir, Martin, Pitt56 min
Aug 19, 1:28 PM EDTSpecial Marine WarningMHX47 min
Aug 19, 1:29 PM EDTSpecial Marine WarningMHX46 min
Aug 19, 1:47 PM EDTSpecial Weather StatementMHXOnslow43 min
Aug 19, 2:06 PM EDTSpecial Marine WarningMHX24 min
Aug 19, 2:11 PM EDTTornado WarningMHXDare34 min
Aug 19, 2:14 PM EDTSpecial Marine WarningMHX31 min
Aug 19, 2:17 PM EDTSpecial Marine WarningMHX43 min
Aug 19, 2:28 PM EDTSpecial Marine WarningMHX32 min
Aug 19, 2:29 PM EDTSpecial Weather StatementMHXBeaufort, Craven, Hyde, Jones, Onslow, Pamlico and 1 more61 min
Aug 19, 2:44 PM EDTSpecial Marine WarningMHX46 min
Aug 19, 2:58 PM EDTSpecial Marine WarningMHX62 min
Aug 19, 3:23 PM EDTAreal Flood AdvisoryMHXDare82 min
Aug 19, 3:48 PM EDTSpecial Weather StatementMHXCarteret57 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.