Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 256...RESENT
NWS STORM PREDICTION CENTER NORMAN OK
215 PM EDT WED MAY 6 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
MUCH OF WESTERN AND NORTHERN NORTH CAROLINA
PARTS OF NORTHERN SOUTH CAROLINA
A LARGE PART OF SOUTHERN VIRGINIA
COASTAL WATERS
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
900 PM EDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST OF GREENVILLE
SOUTH CAROLINA TO 15 MILES NORTH NORTHEAST OF NORFOLK VIRGINIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...WW 254...WW 255...
DISCUSSION...AS TROUGH AND STRONGER WINDS FIELDS APPROACH FROM THE
WEST...CONDITIONS ACROSS THE WATCH WILL BECOME INCREASINGLY
FAVORABLE FOR SEVERE THUNDERSTORMS INCLUDING SUPERCELLS. WITH WARM
SECTOR BECOMING UNCAPPED AND MLCAPES AOA 1000 J/KG THUNDERSTORMS
WILL INCREASE IN NUMBER AND INTENSITY THRU REMAINDER OF AFTERNOON.
FAVORED AREA FOR POSSIBLE TORNADIC SUPERCELLS WILL BE VICINITY LOW
LEVEL BOUNDARY ALONG NORTHERN PORTION OF WATCH WHERE SHEAR PROFILES
WILL BE ENHANCED.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24030.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 256 TORNADO NC SC VA CW 061815Z - 070100Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
20W GSP/GREENVILLE SC/ - 15NNE ORF/NORFOLK VA/
..AVIATION COORDS.. 55NM N/S /33WSW SPA - 14NNE ORF/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24030.
LAT...LON 35848256 38047609 36157609 33958256
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 256 Status Report Messages:
STATUS REPORT #2 ON WW 256
VALID 062240Z - 062340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..05/06/09
ATTN...WFO...RAH...GSP...AKQ...RNK...CAE...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC001-003-007-015-021-023-025-027-029-033-035-037-041-045-053-
057-059-063-065-067-069-071-073-077-081-083-085-089-091-097-101-
105-109-111-119-123-125-127-131-135-139-143-145-149-151-153-157-
159-161-167-169-175-179-181-183-185-195-197-062340-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
ALAMANCE ALEXANDER ANSON
BERTIE BUNCOMBE BURKE
CABARRUS CALDWELL CAMDEN
CASWELL CATAWBA CHATHAM
CHOWAN CLEVELAND CURRITUCK
DAVIDSON DAVIE DURHAM
EDGECOMBE FORSYTH FRANKLIN
GASTON GATES GRANVILLE
GUILFORD HALIFAX HARNETT
HENDERSON HERTFORD IREDELL
JOHNSTON LEE LINCOLN
MCDOWELL MECKLENBURG MONTGOMERY
MOORE NASH NORTHAMPTON
ORANGE PASQUOTANK PERQUIMANS
PERSON POLK RANDOLPH
RICHMOND ROCKINGHAM ROWAN
RUTHERFORD STANLY STOKES
TRANSYLVANIA UNION VANCE
WAKE WARREN WILSON
YADKIN
$$
SCC001-021-023-025-039-045-047-057-059-071-083-087-091-062340-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ABBEVILLE CHEROKEE CHESTER
CHESTERFIELD FAIRFIELD GREENVILLE
GREENWOOD LANCASTER LAURENS
NEWBERRY SPARTANBURG UNION
YORK
$$
VAC007-011-019-025-029-031-036-037-041-049-053-067-073-081-083-
087-089-093-095-111-115-117-119-135-143-145-147-149-175-181-183-
199-515-550-590-595-620-650-670-680-690-700-710-730-735-740-760-
800-810-830-062340-
VA
. VIRGINIA COUNTIES INCLUDED ARE
AMELIA APPOMATTOX BEDFORD
BRUNSWICK BUCKINGHAM CAMPBELL
CHARLES CITY CHARLOTTE CHESTERFIELD
CUMBERLAND DINWIDDIE FRANKLIN
GLOUCESTER GREENSVILLE HALIFAX
HENRICO HENRY ISLE OF WIGHT
JAMES CITY LUNENBURG MATHEWS
MECKLENBURG MIDDLESEX NOTTOWAY
PITTSYLVANIA POWHATAN PRINCE EDWARD
PRINCE GEORGE SOUTHAMPTON SURRY
SUSSEX YORK
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
BEDFORD CHESAPEAKE DANVILLE
EMPORIA FRANKLIN HAMPTON
HOPEWELL LYNCHBURG MARTINSVILLE
NEWPORT NEWS NORFOLK PETERSBURG
POQUOSON PORTSMOUTH RICHMOND
SUFFOLK VIRGINIA BEACH WILLIAMSBURG
$$
ANZ633-062340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CURRITUCK SOUND
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 256
VALID 062055Z - 062140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DIAL..05/06/09
ATTN...WFO...RAH...GSP...AKQ...RNK...CAE...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC001-003-007-015-021-023-025-027-029-033-035-037-041-045-053-
057-059-063-065-067-069-071-073-077-081-083-085-089-091-097-101-
105-109-111-119-123-125-127-131-135-139-143-145-149-151-153-157-
159-161-167-169-175-179-181-183-185-195-197-062140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
ALAMANCE ALEXANDER ANSON
BERTIE BUNCOMBE BURKE
CABARRUS CALDWELL CAMDEN
CASWELL CATAWBA CHATHAM
CHOWAN CLEVELAND CURRITUCK
DAVIDSON DAVIE DURHAM
EDGECOMBE FORSYTH FRANKLIN
GASTON GATES GRANVILLE
GUILFORD HALIFAX HARNETT
HENDERSON HERTFORD IREDELL
JOHNSTON LEE LINCOLN
MCDOWELL MECKLENBURG MONTGOMERY
MOORE NASH NORTHAMPTON
ORANGE PASQUOTANK PERQUIMANS
PERSON POLK RANDOLPH
RICHMOND ROCKINGHAM ROWAN
RUTHERFORD STANLY STOKES
TRANSYLVANIA UNION VANCE
WAKE WARREN WILSON
YADKIN
$$
SCC001-021-023-025-039-045-047-057-059-071-083-087-091-062140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ABBEVILLE CHEROKEE CHESTER
CHESTERFIELD FAIRFIELD GREENVILLE
GREENWOOD LANCASTER LAURENS
NEWBERRY SPARTANBURG UNION
YORK
$$
VAC007-011-019-025-029-031-036-037-041-049-053-067-073-081-083-
087-089-093-095-111-115-117-119-135-143-145-147-149-175-181-183-
199-515-550-590-595-620-650-670-680-690-700-710-730-735-740-760-
800-810-830-062140-
VA
. VIRGINIA COUNTIES INCLUDED ARE
AMELIA APPOMATTOX BEDFORD
BRUNSWICK BUCKINGHAM CAMPBELL
CHARLES CITY CHARLOTTE CHESTERFIELD
CUMBERLAND DINWIDDIE FRANKLIN
GLOUCESTER GREENSVILLE HALIFAX
HENRICO HENRY ISLE OF WIGHT
JAMES CITY LUNENBURG MATHEWS
MECKLENBURG MIDDLESEX NOTTOWAY
PITTSYLVANIA POWHATAN PRINCE EDWARD
PRINCE GEORGE SOUTHAMPTON SURRY
SUSSEX YORK
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
BEDFORD CHESAPEAKE DANVILLE
EMPORIA FRANKLIN HAMPTON
HOPEWELL LYNCHBURG MARTINSVILLE
NEWPORT NEWS NORFOLK PETERSBURG
POQUOSON PORTSMOUTH RICHMOND
SUFFOLK VIRGINIA BEACH WILLIAMSBURG
$$
ANZ633-062140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CURRITUCK SOUND
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.