Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Wakefield, VA

July 9, 2012Currituck County, North Carolina

NWS Wakefield, VA issued this special weather statement at Jul 9, 2012, 8:16 PM EDT for Currituck County, North Carolina. It was in force for 44 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 9, 2012, 8:16 PM EDT (00:16 UTC)
Expired
Jul 9, 2012, 9:00 PM EDT
In force
44 min
Issued by
NWS Wakefield, VA

County Currituck County, NC

The radar

The Norfolk radar (KAKQ), 128 km from the middle of the area, began a volume at 00:17 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, 0.3 hours before the alert went out and 186 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 2012-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1599 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 00:00Z on 2012-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -51 square meters per square second.1939Sfc1 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
1599 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1246 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-51 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Wakefield, VA wrote its last area forecast discussion before this special weather statement went out at Jul 9, 4:30 PM EDT, 3 hours 46 minutes earlier.

Area forecast discussion, Jul 9, 4:30 PM EDT, 3 hours 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD VA
430 PM EDT MON JUL 9 2012

.SYNOPSIS...
A COLD FRONT WILL DROP INTO NORTH CAROLINA THIS EVENING...THEN
REMAIN STALLED THERE INTO THURSDAY. THE STALLED FRONT WILL BRING
A PERIOD OF UNSETTLED CONDITIONS FOR MUCH OF THE WORK WEEK.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
SCTD SHOWERS AND TSTMS EXPECTED MAINLY ACRS SRN 2/3RDS OF THE AREA
THRU THIS EVENG...WHERE HIER CAPE VALUES AND WEAK CONVERGENCE
BOUNDARIES EXIST. SEVERE TSTM WATCH IN EFFECT UNTIL 10 PM FOR SRN
HALF OF THE REGION WITH DAMAGING WNDS AND LARGE HAIL THE MAIN
THREATS. HEAVY RAIN WILL ALSO BE POSSIBLE WITH ANY STORMS...AS
PWATS NEAR 2". STORMS WILL CALM DOWN LATER THIS EVENG WITH LOSS
OF HEATING...BUT STILL DECENT CHCS...ESPLY EXTRM SRN VA AND NE
NC...FOR LINGERING PCPN OVRNGT INTO TUE MORNG. OTHRWISE...PRTLY OR
MSTLY CLDY AND SOMEWHAT MUGGY TNGT WITH LOWS 70 TO 75.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/...
FRNTL BNDRY WILL LAY ACRS THE CAROLINAS TUE INTO THU WITH MAINLY
SCTD AFTN/EVENG SHOWERS AND TSTMS. THE FRNTL BNDRY WILL WASHOUT OR
DISSIPATE DURING THU...AS HIER 500 MB HEIGHTS AND BERMUDA HI PRES
BLD IN FM THE EAST. THE HIEST POPS WILL REMAIN ACRS THE SRN HALF
OF THE REGION. FOR TEMPS...RESPITE FM THE HEAT OF THE PAST WEEK
CONTINUES. MAX TEMPS WILL MAINLY BE IN THE LWR TO MID 80S
TUE...WED AND THU...WITH MIN TEMPS RANGING FM THE MID 60S TO LWR
70S.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
A PERIOD OF COOLER WEATHER...MORE CLOUDS AND EVEN CHANCES FOR
SHOWERS AND SOME STORMS CONTINUES INTO MEDIUM RANGE PERIOD FOR THE
END OR THE WORK WEEK. MODELS CONTINUE TO DEPICT THE PRESENCE OF A
WEAK MID AND UPPER LEVEL TROUGH EXTENDING SSW INTO THE TN AND
LOWER MS VALLEY. THE GFS AND ECMWF DIFFER SOMEWHAT ON THE BUILDING
IN OF THE RIDGE FROM THE SOUTHEAST LATE FRIDAY. THE EMWF BRINGS
THE RIDGE OR BERMUDA HIGH IN FASTER SHUNTING THE BEST POPS TO THE
WEST WHERE THE GFS IS SLOWER BUILDING THE RIDGE IN ALLOWING A
WEAK DISTURBANCE IN THE SW FLOW TO DEVELOP WIDESPREAD SHOWERS AND
STORMS. WILL SPLIT THE DIFFERENCE FOR NOW AND KEEP SCATTERED
SHOWERS AND STORMS IN THE FORECAST FRIDAY MAINLY IN THE AFTERNOON
AND EVENING WITH MOSTLY CLOUDY SKIES. THE BERMUDA HIGH BUILDS IN
MORE ON SATURDAY AND HAVE LOWERED POPS TO A SLIGHT CHANCE/LOW
CHANCE SATURDAY AFTERNOON. HIGHS FRIDAY IN THE MID 80S AND WARMER ON
SATURDAY IN THE UPPER 80S TO AROUND 90. LOWS WILL BE IN THE UPPER
60S TO LOWER 70S.

BERMUDA HIGH PRESSURE BUILDS LATE SATURDAY THROUGH SUNDAY ALLOWING
FOR A WARMUP INTO THE LOWER 90S FOR SUNDAY. THIS WILL SET UP A
MORE TYPICAL SUMMERTIME PATTERN AND GIVEN THE SOUTHERLY FLOW
HUMIDITY WILL REMAIN HIGH THOUGH TEMPERATURES WILL NOT BE HOT
ENOUGH TO SUPPORT HIGH HEAT INDEX VALUES. WILL CARRY ONLY A
SLIGHT CHANCE FOR A DIURNAL/AFTN- EVENING WIDELY SCATTERED STORM
SUNDAY (20% POPS) EAST OF I-95. LOW TEMPS THROUGH THE LONG RANGE
PERIOD WILL BE CLOSE TO AVG...MAINLY IN THE MID- UPR 60S TO LWR
70S. THE BERMUDA HIGH STARTS TO SHIFT WAST AS ANOTHER UPPER
TROUGH DIGS SOUTH TOWARDS THE MID ATLANTIC MONDAY. THIS COULD
BRING SOME MORE UNSETTLED WEATHER EARLY NEXT WEEK.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPING ALONG VARIOUS
BOUNDARIES THIS AFTERNOON. DIFFICULT TO PLACE THE EXACT DEVELOPMENT.
FOR NOW THINK BEST CHANCES WILL BE AT PHF ORF AND ECG TERMINALS.
THERE IS ALSO A TSTM NEAR SBY WHICH WILL PASS BY DURING THE
AFTERNOON. OTHERWISE VFR CONDITIONS WILL EXIST THROUGH THE EVENING.
WILL ALSO HAVE SOME LOWER VSBY TONIGHT WITH PLENTY OF MOISTURE IN
THE AIR. EXPECT SOME MVFR VSBY TONIGHT. ON TUESDAY WILL AGAIN HAVE A
CHANCE OF AFTERNOON TSTMS WHICH COULD PRODUCE BRIEF IFR CONDITIONS.
CONTINUING CHANCE OF MAINLY AFTERNOON AND EVENING TSTMS THROUGH THE
WEEK WHICH COULD CAUSE BRIEF IFR CONDITIONS IN TSTMS.

&&

.MARINE...
WINDS GUSTING TO 15 KT OVER THE SOUTHERN BAY AND COASTAL WATERS
HAVE DECREASED LATE THIS AFTERNOON TO AROUND 10KT OR LESS. SEAS
NEAR THE MOUTH OF THE BAY BUILT TO 2 TO 3 FEET...BUT WILL BE
DECREASING BACK TO A SOLID 2 FEET THIS EVENING. THE SURFACE FRONT
REMAINS TO OUR SOUTH OVER EASTERN NC WITH EASTERLY WIND ACROSS THE
BAY AND COASTAL WATERS. SCATTERED SHOWERS AND STORMS THIS
AFTERNOON WILL CONTINUE INTO THE EVENING BEFORE DISSIPATING WITH
LOSS OF HEATING.

WITH THE PATTERN SLOW TO CHANGE THIS WEEK EXPECT A STEADY NE TO E
FLOW ACROSS ALL THE WATERS EXCEPT FAR SOUTHERN PORTIONS. THIS WILL
SUPPORT SEAS AROUND 3 TO OCCASIONALLY 4 FEET NORTH OF THE MOUTH OF
THE BAY TO OCEAN CITY. FURTHER SOUTH TO THE NC WATERS SEAS WILL
RUN MAINLY AROUND 2 TO OCCASIONALLY 3 FEET.

WINDS CHANGE LATE IN THE WEEK ON FRIDAY BECOMING MORE SOUTHERLY AS
THE BERMUDA HIGH PUSHES IN FROM THE EAST. SCA CRITERIA WILL
REMAIN OUT OF THE FORECAST BUT THE SOUTHERLY WINDS WILL INCREASE
LATE FRIDAY INTO THE WEEKEND ESPECIALLY ACROSS THE MIDDLE BAY AND
COASTAL WATERS NORTH OF THE MOUTH OF THE BAY TO OCEAN CITY.

&&

.CLIMATE...
RIC AND ORF HAD RECORD HIGH MINIMUMS SUNDAY. SEE RER'S FOR THESE
AND THE RECORD HIGH MAXIMUMS OVER THE WEEKEND AT RIC ORF SBY AND
ECG.

&&

.AKQ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
NC...NONE.
VA...NONE.
MARINE...NONE.

&&

SYNOPSIS...TMG
NEAR TERM...TMG
SHORT TERM...TMG
LONG TERM...JAO
AVIATION...JAB
MARINE...JAO
CLIMATE...AKQ
Hazardous weather outlook, Jul 9, 7:51 PM EDT, 25 minutes before
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In the hours before

Special weather statement, Jul 9, 6:21 PM EDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
621 PM EDT MON JUL 9 2012

NCZ012-092300-
NORTHAMPTON-
621 PM EDT MON JUL 9 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS NORTHAMPTON COUNTY THROUGH
700 PM EDT...

AT 621 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM ALONG A
LINE EXTENDING FROM PLEASANT HILL TO PLEASANT GROVE...OR ALONG A LINE
EXTENDING FROM GARYSBURG TO 9 MILES EAST OF GARYSBURG...MOVING EAST
AT 5 MPH.

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

CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL CAUSE MINOR
FLOODING OF LOW LYING AREAS INCLUDING DITCHES...CREEKS...ROADWAYS AND
AREAS OF POOR DRAINAGE. AVOID THESE AREAS AND DO NOT CROSS FLOODED
ROADS. MOTORISTS SHOULD ALSO REDUCE DRIVING SPEEDS TO AVOID
HYDROPLANING.

LAT...LON 3621 7739 3624 7738 3632 7745 3630 7756
      3635 7759 3640 7755 3648 7767 3654 7769
      3655 7717 3653 7715 3651 7709 3649 7707
      3645 7714 3622 7723 3621 7729 3617 7731

ZIMMERMAN
Special weather statement, Jul 9, 6:24 PM EDT, 1 hour 52 minutes before
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Special weather statement, Jul 9, 6:30 PM EDT, 1 hour 46 minutes before
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Special weather statement, Jul 9, 7:15 PM EDT, 1 hour 1 minute before
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Special weather statement, Jul 9, 7:29 PM EDT, 47 minutes before
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Special weather statement, Jul 9, 8:16 PM EDT, 0 minutes before
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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 8:28 PM EDTSpecial Weather StatementAKQCharles City, Henrico, City of Hopewell62 min
Jul 9, 8:44 PM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Suffolk, City of Virginia Beach46 min
Jul 9, 8:52 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, City of Franklin, City of Suffolk23 min
Jul 9, 9:04 PM EDTSpecial Weather StatementAKQKing William, New Kent56 min
Jul 9, 9:37 PM EDTSpecial Weather StatementAKQSouthampton38 min
Jul 9, 9:57 PM EDTSpecial Weather StatementAKQKing and Queen, King William63 min
Jul 10, 5:05 AM EDTAreal Flood AdvisoryAKQHenrico, City of Richmond67 min
Jul 10, 10:11 AM EDTSpecial Marine WarningAKQ34 min
Jul 10, 10:19 AM EDTSpecial Weather StatementAKQCity of Virginia Beach56 min
Jul 10, 1:04 PM EDTSmall Craft AdvisoryAKQ12 hr
Jul 10, 2:43 PM EDTSpecial Weather StatementAKQGoochland62 min
Jul 9, 8:19 PM EDTSpecial Weather StatementAKQGates, Hertford41 min
Jul 10, 2:41 PM EDTSpecial Weather StatementAKQBertie, Chowan64 min
Jul 10, 3:42 PM EDTSpecial Weather StatementAKQChowan, Perquimans48 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.