Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Raleigh, NC

August 11, 2012Wayne County, North Carolina

NWS Raleigh, NC issued this special weather statement at Aug 11, 2012, 12:44 PM EDT for Wayne County, North Carolina. It was in force for 61 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, 12:44 PM EDT (16:44 UTC)
Expired: Aug 11, 2012, 1:45 PM EDT
In force: 61 min
Issued by: NWS Raleigh, NC

County Wayne County, NC

The radar

The Raleigh/Durham radar (KRAX), 59 km from the middle of the area, began a volume at 16:47 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, 4.7 hours before the alert went out and 123 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

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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 Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Aug 11, 10:38 AM EDT, 2 hours 6 minutes earlier.

Area forecast discussion, Aug 11, 10:38 AM EDT, 2 hours 6 minutes before

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Hazardous weather outlook, Aug 11, 7:04 AM EDT, 5 hours 40 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE RALEIGH NC
704 AM EDT SAT AUG 11 2012

NCZ007>011-021>028-038>043-073>078-083>086-088-089-121115-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE-
ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE-
JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-
RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
704 AM EDT SAT AUG 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED SEVERE THUNDERSTORMS WITH A PRIMARY THREAT OF DAMAGING
WINDS WILL BE POSSIBLE THIS AFTERNOON INTO TONIGHT AS AN UPPER
LEVEL TROUGH APPROACHES FROM THE WEST. LOCALLY HEAVY RAINFALL CAN
ALSO BE EXPECTED WITH ANY THUNDERSTORMS.

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

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

VINCENT

In the hours before

Special weather statement, Aug 11, 6:44 AM EDT, 6 hours before

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Special weather statement, Aug 11, 12:03 PM EDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1203 PM EDT SAT AUG 11 2012

NCZ042-043-078-111700-
JOHNSTON-WAYNE-WILSON-
1203 PM EDT SAT AUG 11 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS WAYNE...JOHNSTON AND WILSON
COUNTIES THROUGH 100 PM EDT...

AT 1203 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
KENLY...OR ABOUT 13 MILES EAST OF SMITHFIELD...MOVING NORTHEAST AT 20
MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...LUCAMA...BLACK
CREEK...WILSON.

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

SEEK SHELTER IN A NEARBY 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 3559 7779 3544 7811 3558 7829 3581 7799
      3585 7788 3585 7787 3576 7773 3573 7772
      3567 7766
TIME...MOT...LOC 1603Z 224DEG 15KT 3557 7812

KRR

Special weather statement, Aug 11, 12:44 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1244 PM EDT SAT AUG 11 2012

NCZ042-043-078-111745-
JOHNSTON-WAYNE-WILSON-
1244 PM EDT SAT AUG 11 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS WAYNE...JOHNSTON AND WILSON
COUNTIES THROUGH 145 PM EDT...

AT 1244 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5
MILES NORTH OF MAR-MAC...OR ABOUT 7 MILES WEST OF GOLDSBORO...MOVING
NORTHEAST AT 20 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...GOLDSBORO...
NAHUNTA...PIKEVILLE...FREMONT...EUREKA...BLACK CREEK.

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

SEEK SHELTER IN A NEARBY 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 3557 7782 3542 7782 3540 7780 3526 7808
      3539 7825 3580 7777 3577 7773 3573 7772
      3567 7766
TIME...MOT...LOC 1644Z 228DEG 18KT 3541 7808

KRR

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 11:32 PM EDT	Special Weather Statement	RAH	Forsyth	43 min
Aug 11, 1:01 AM EDT	Special Weather Statement	RAH	Forsyth	59 min
Aug 11, 2:15 AM EDT	Special Weather Statement	RAH	Forsyth	30 min
Aug 11, 4:21 AM EDT	Special Weather Statement	RAH	Davidson	24 min
Aug 11, 4:48 AM EDT	Special Weather Statement	RAH	Guilford	12 min
Aug 11, 5:35 AM EDT	Special Weather Statement	RAH	Person	40 min
Aug 11, 6:11 AM EDT	Special Weather Statement	RAH	Person	49 min
Aug 11, 6:44 AM EDT	Special Weather Statement	RAH	Vance	46 min
Aug 11, 12:03 PM EDT	Special Weather Statement	RAH	Wilson	57 min
Aug 11, 12:59 PM EDT	Special Weather Statement	RAH	Franklin, Halifax, Warren	61 min
Aug 11, 1:05 PM EDT	Special Weather Statement	RAH	Alamance	55 min
Aug 11, 1:13 PM EDT	Tornado Warning	RAH	Halifax, Nash	25 min
Aug 11, 1:33 PM EDT	Special Weather Statement	RAH	Orange, Person	57 min
Aug 11, 1:59 PM EDT	Special Weather Statement	RAH	Granville, Orange	61 min
Aug 11, 2:08 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Vance	52 min
Aug 11, 2:26 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Orange, Person, Vance	50 min
Aug 11, 2:50 PM EDT	Special Weather Statement	RAH	Franklin, Warren	55 min
Aug 11, 3:19 PM EDT	Special Weather Statement	RAH	Alamance, Durham, Granville, Orange, Person, Vance	56 min
Aug 11, 3:29 PM EDT	Special Weather Statement	RAH	Sampson	61 min
Aug 11, 3:30 PM EDT	Flash Flood Warning	RAH	Davidson, Guilford, Randolph	3 hr
Aug 11, 3:42 PM EDT	Special Weather Statement	RAH	Franklin, Warren	63 min
Aug 11, 4:07 PM EDT	Areal Flood Advisory	RAH	Franklin, Halifax, Warren	3 hr
Aug 11, 4:07 PM EDT	Special Weather Statement	RAH	Edgecombe, Halifax, Johnston, Nash, Wayne, Wilson	83 min
Aug 11, 4:36 PM EDT	Areal Flood Advisory	RAH	Nash, Wayne, Wilson	3 hr
Aug 11, 4:36 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne, Wilson	69 min
Aug 11, 5:13 PM EDT	Tornado Warning	RAH	Edgecombe, Wilson	62 min
Aug 11, 5:15 PM EDT	Areal Flood Advisory	RAH	Edgecombe, Halifax, Wilson	3 hr
Aug 11, 5:58 PM EDT	Special Weather Statement	RAH	Forsyth	32 min
Aug 11, 7:33 PM EDT	Flash Flood Warning	RAH	Davidson, Guilford, Randolph	3 hr

Nearby

Special Weather Statements in North Carolina, 2012 Every 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.