Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Newport/Morehead City, NC

July 21, 2012Onslow County, North Carolina

NWS Newport/Morehead City, NC issued this special weather statement at Jul 21, 2012, 2:37 PM EDT for Onslow County, North Carolina. It was in force for 38 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
Jul 21, 2012, 2:37 PM EDT (18:37 UTC)
Expired
Jul 21, 2012, 3:15 PM EDT
In force
38 min
Issued by
NWS Newport/Morehead City, NC

County Onslow County, NC

The radar

The Morehead City radar (KMHX), 59 km from the middle of the area, began a volume at 18:40 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, 6.6 hours before the alert went out and 59 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 2012-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1797 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2012-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
1797 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
596 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Newport/Morehead City, NC wrote its last area forecast discussion before this special weather statement went out at Jul 21, 1:43 PM EDT, 54 minutes earlier.

Area forecast discussion, Jul 21, 1:43 PM EDT, 54 minutes before
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Hazardous weather outlook, Jul 21, 4:46 AM EDT, 9 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK FOR EASTERN NORTH CAROLINA
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
446 AM EDT SAT JUL 21 2012

NCZ029-044>047-079>081-090>094-220900-
MARTIN-PITT-WASHINGTON-TYRRELL-MAINLAND DARE-GREENE-BEAUFORT-
MAINLAND HYDE-DUPLIN-LENOIR-JONES-CRAVEN-PAMLICO-
446 AM EDT SAT JUL 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS WITH HEAVY DOWNPOURS MAY CAUSE LOCALIZED
FLOODING TODAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SCATTERED THUNDERSTORMS MAY BRING GUSTY WINDS AND HEAVY RAINFALL
AGAIN SUNDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ095-098-103-104-220900-
CARTERET-ONSLOW-OUTER BANKS DARE-OUTER BANKS HYDE-
446 AM EDT SAT JUL 21 2012

...MODERATE RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   MODERATE RIP CURRENT RISK.
SHOWERS AND THUNDERSTORMS WITH HEAVY DOWNPOURS MAY CAUSE LOCALIZED
FLOODING TODAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SCATTERED THUNDERSTORMS MAY BRING GUSTY WINDS AND HEAVY RAINFALL
AGAIN SUNDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 21, 1:09 PM EDT, 1 hour 28 minutes before
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Special weather statement, Jul 21, 1:27 PM EDT, 1 hour 10 minutes before
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Special weather statement, Jul 21, 2:09 PM EDT, 28 minutes before
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Special weather statement, Jul 21, 2:26 PM EDT, 11 minutes before
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Special weather statement, Jul 21, 2:27 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
227 PM EDT SAT JUL 21 2012

NCZ044-079-080-211930-
BEAUFORT-GREENE-PITT-
227 PM EDT SAT JUL 21 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS BEAUFORT...PITT AND GREENE
COUNTIES THROUGH 330 PM EDT...

AT 227 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
GRIFTON...OR ABOUT 5 MILES SOUTHWEST OF AYDEN...MOVING NORTHEAST AT
15 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...QUINERLY...AYDEN.....
.JOHNSONS MILLS...WINTERVILLE...SHELMERDINE......BELLS FORK...
BELGRADE......BLACK JACK...GRIMESLAND.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

HEAVY RAINFALL AND MINOR FLOODING.

SEEK SHELTER IN A NEARLY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

&&

LAT...LON 3572 7715 3551 7701 3549 7701 3548 7700
      3535 7739 3535 7742 3537 7745 3539 7745
      3543 7748 3541 7749 3542 7752 3539 7757
      3546 7762
TIME...MOT...LOC 1827Z 242DEG 14KT 3543 7746

5
Special weather statement, Jul 21, 2:37 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
237 PM EDT SAT JUL 21 2012

NCZ090-098-211915-
DUPLIN-ONSLOW-
237 PM EDT SAT JUL 21 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS DUPLIN AND ONSLOW COUNTIES
THROUGH 315 PM EDT...

AT 237 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
HOLLY RIDGE...OR ABOUT 7 MILES NORTHEAST OF HAMPSTEAD...MOVING
NORTHEAST AT 10 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...HOLLY RIDGE.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 40 TO 50 MPH.

AN EXCESSIVE AMOUNT OF DEADLY CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

SEEK SHELTER IN A NEARLY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

&&

LAT...LON 3446 7754 3448 7758 3471 7768 3480 7766
      3464 7737 3463 7736 3463 7735 3458 7725
      3452 7733 3447 7745 3443 7752
TIME...MOT...LOC 1837Z 207DEG 8KT 3445 7762

2

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 9:05 PM EDTAreal Flood AdvisoryMHXCraven, Jones, Pamlico85 min
Jul 20, 11:19 PM EDTSpecial Weather StatementMHXOnslow41 min
Jul 21, 12:25 AM EDTSpecial Weather StatementMHXHyde35 min
Jul 21, 1:09 PM EDTSpecial Weather StatementMHXOnslow66 min
Jul 21, 1:27 PM EDTSpecial Weather StatementMHXCarteret63 min
Jul 21, 1:33 PM EDTSpecial Marine WarningMHX42 min
Jul 21, 1:40 PM EDTSpecial Marine WarningMHX65 min
Jul 21, 2:09 PM EDTSpecial Weather StatementMHXOnslow66 min
Jul 21, 2:26 PM EDTSpecial Weather StatementMHXCarteret, Pamlico64 min
Jul 21, 2:27 PM EDTSpecial Weather StatementMHXPitt63 min
Jul 21, 2:59 PM EDTSpecial Weather StatementMHXHyde61 min
Jul 21, 3:32 PM EDTSpecial Weather StatementMHXTyrrell58 min
Jul 21, 3:53 PM EDTSpecial Weather StatementMHXJones52 min
Jul 21, 4:04 PM EDTSpecial Weather StatementMHXLenoir56 min
Jul 21, 4:32 PM EDTSpecial Weather StatementMHXDare58 min
Jul 21, 4:48 PM EDTSpecial Weather StatementMHXJones57 min
Jul 21, 4:58 PM EDTSevere Thunderstorm WarningMHXCraven, Duplin, Greene, Jones, Lenoir62 min
Jul 21, 5:11 PM EDTAreal Flood WarningMHXBeaufort, Craven, Duplin, Jones, Lenoir94 min
Jul 21, 5:16 PM EDTSpecial Marine WarningMHX44 min
Jul 21, 5:21 PM EDTSpecial Weather StatementMHXCurrituck39 min
Jul 21, 5:27 PM EDTSpecial Weather StatementMHXMartin, Pitt48 min
Jul 21, 5:33 PM EDTSpecial Weather StatementMHXDuplin57 min
Jul 21, 5:58 PM EDTSpecial Weather StatementMHXCraven, Jones62 min
Jul 21, 6:20 PM EDTSpecial Weather StatementMHXOnslow55 min
Jul 21, 6:41 PM EDTSpecial Weather StatementMHXDuplin34 min
Jul 21, 7:14 PM EDTSpecial Weather StatementMHXJones46 min
Jul 21, 7:19 PM EDTSpecial Marine WarningMHX56 min
Jul 21, 7:41 PM EDTSpecial Weather StatementMHXDare64 min
Jul 21, 7:48 PM EDTSevere Thunderstorm WarningMHXDare27 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.