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
NWS STORM PREDICTION CENTER NORMAN OK
315 PM EDT THU APR 28 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHEAST NORTH CAROLINA
NORTHEAST SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 315 PM UNTIL
800 PM EDT.
TORNADOES...HAIL TO 2 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 45 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTHWEST OF MYRTLE
BEACH SOUTH CAROLINA TO 30 MILES NORTH OF WILMINGTON NORTH
CAROLINA. 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 252...WW 253...WW
254...WW 255...
DISCUSSION...THUNDERSTORMS CONTINUE TO FORM OVER THE EASTERN
CAROLINAS AS LARGE UPPER TROUGH ROTATES ACROSS REGION. SUFFICIENT
LOW LEVEL VERTICAL SHEAR WILL PROVIDE SUPPORT FOR SUPERCELLS THROUGH
THE AFTERNOON. DAMAGING WINDS ARE THE MAIN THREAT...ALTHOUGH
ISOLATED TORNADOES WILL REMAIN POSSIBLE.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HART
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 CW 281915Z - 290000Z
AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
55SW CRE/MYRTLE BEACH SC/ - 30N ILM/WILMINGTON NC/
..AVIATION COORDS.. 40NM E/W /26ENE CHS - 21N ILM/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 33118037 34707869 34707711 33117881
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 #4 ON WW 256
VALID 282330Z - 290000Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S ILM TO
20 WSW OAJ.
WW 256 WILL BE ALLOWED TO EXPIRE AT 290000Z.
..PETERS..04/28/11
ATTN...WFO...ILM...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC129-141-290000-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
NEW HANOVER PENDER
$$
AMZ250-252-290000-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
$$
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.
$$
STATUS REPORT #3 ON WW 256
VALID 282245Z - 282340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW ILM
TO 30 ENE CRE TO 20 SSE FAY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 667.
..PETERS..04/28/11
ATTN...WFO...ILM...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC017-019-047-129-141-282340-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER
$$
AMZ250-252-282340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 256
VALID 282135Z - 282240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE CHS TO
40 W ILM TO 25 SSE FAY.
..PETERS..04/28/11
ATTN...WFO...ILM...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC017-019-047-129-141-282240-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER
$$
SCC043-051-282240-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
GEORGETOWN HORRY
$$
AMZ250-252-254-256-282240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
COASTAL WATERS FROM LITTLE RIVER INLET TO MURRELLS INLET SC OUT
20 NM
COASTAL WATERS FROM MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT
20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 256
VALID 282035Z - 282140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..04/28/11
ATTN...WFO...ILM...
&&
STATUS REPORT FOR WT 256
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC017-019-047-129-141-282140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER
$$
SCC041-043-051-067-089-282140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
FLORENCE GEORGETOWN HORRY
MARION WILLIAMSBURG
$$
AMZ250-252-254-256-282140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
COASTAL WATERS FROM LITTLE RIVER INLET TO MURRELLS INLET SC OUT
20 NM
COASTAL WATERS FROM MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT
20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (30%)
|
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 (70%)
|
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.
weather.gov�
@NWSSPC
