Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Newport/Morehead City, NC

August 11, 2012Carteret County, North Carolina

NWS Newport/Morehead City, NC issued this special weather statement at Aug 11, 2012, 10:21 AM EDT for Carteret County, North Carolina. It was in force for 54 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 11, 2012, 10:21 AM EDT (14:21 UTC)
Expired
Aug 11, 2012, 11:15 AM EDT
In force
54 min
Issued by
NWS Newport/Morehead City, NC

County Carteret County, NC

The radar

The Morehead City radar (KMHX), 6 km from the middle of the area, began a volume at 14:23 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 nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 2.4 hours before the alert went out and 5 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 2012-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1450 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 2012-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1450 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
785 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

556 
WWUS82 KMHX 111421
SPSMHX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
1021 AM EDT SAT AUG 11 2012

NCZ095-111515-
CARTERET-
1021 AM EDT SAT AUG 11 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS CARTERET COUNTY THROUGH
1115 AM EDT...

AT 1021 AM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
BOGUE...OR ABOUT 12 MILES SOUTHWEST OF NEWPORT...MOVING NORTHEAST AT
30 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...NEWPORT.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

HAZARDS INCLUDE...
AN EXCESSIVE AMOUNT OF DEADLY CLOUD TO GROUND LIGHTNING.

HAZARDS INCLUDE...
HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.

&&

LAT...LON 3465 7711 3471 7710 3477 7713 3480 7711
      3481 7696 3483 7695 3485 7687 3485 7679
      3496 7669 3499 7671 3500 7664 3472 7688
      3469 7698 3468 7697 3470 7690 3467 7693
      3464 7709
TIME...MOT...LOC 1421Z 212DEG 27KT 3472 7703

$$

11

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:33 PM EDTSpecial Weather StatementMHXLenoir57 min
Aug 10, 11:16 PM EDTSpecial Weather StatementMHXOnslow59 min
Aug 10, 11:45 PM EDTSpecial Weather StatementMHXOnslow30 min
Aug 11, 12:16 AM EDTSpecial Weather StatementMHXCraven29 min
Aug 11, 12:58 AM EDTSpecial Weather StatementMHXPamlico32 min
Aug 11, 4:59 AM EDTSpecial Weather StatementMHXCarteret31 min
Aug 11, 5:20 AM EDTSpecial Weather StatementMHXCarteret25 min
Aug 11, 5:40 AM EDTSpecial Weather StatementMHXPamlico35 min
Aug 11, 8:17 AM EDTSpecial Weather StatementMHXDare58 min
Aug 11, 9:54 AM EDTSpecial Marine WarningMHX21 min
Aug 11, 11:06 AM EDTSpecial Weather StatementMHXCraven, Onslow54 min
Aug 11, 2:48 PM EDTSpecial Weather StatementMHXMartin, Pitt57 min
Aug 11, 3:14 PM EDTSpecial Weather StatementMHXBeaufort61 min
Aug 11, 4:15 PM EDTSpecial Weather StatementMHXBeaufort60 min
Aug 11, 5:04 PM EDTSpecial Weather StatementMHXGreene41 min
Aug 11, 5:44 PM EDTSpecial Weather StatementMHXMartin61 min
Aug 11, 7:04 PM EDTSpecial Weather StatementMHXMartin, Pitt56 min

Nearby

Special Weather Statements in North Carolina, 2012Every special weather statement 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.