Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 259
NWS STORM PREDICTION CENTER NORMAN OK
610 PM EDT THU MAY 7 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN NORTH CAROLINA
NORTHEAST SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 610 PM
UNTIL 100 AM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EITHER SIDE OF A LINE FROM 30 MILES NORTH OF CAPE
HATTERAS NORTH CAROLINA TO 30 MILES SOUTH SOUTHWEST OF FLORENCE
SOUTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 258...
DISCUSSION...SCTD TSTMS...SOME WEAK SUPERCELLS...EXPECTED TO PERSIST
FOR THE NEXT FEW HOURS IN AREA OF LOW LVL CONFLUENCE BENEATH
MODERATE MID LVL WLY FLOW OVER THE CAROLINA CSTL PLN. MAIN THREAT
SHOULD BE SVR HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 26030.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 259 SEVERE TSTM NC SC CW 072210Z - 080500Z
AXIS..60 STATUTE MILES EITHER SIDE OF LINE..
30N HSE/CAPE HATTERAS NC/ - 30SSW FLO/FLORENCE SC/
..AVIATION COORDS.. 50NM EITHER SIDE /45SE ECG - 30SSW FLO/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..50 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 26030.
LAT...LON 34867519 32977950 34568033 36457605
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 259 Status Report Messages:
STATUS REPORT #4 ON WW 259
VALID 080230Z - 080340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 ESE ILM
TO 30 WSW OAJ TO 15 ESE SOP.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 750
..GUYER..05/08/09
ATTN...WFO...MHX...ILM...RAH...
&&
STATUS REPORT FOR WS 259
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC013-031-049-051-055-061-065-079-095-101-103-107-117-133-137-
147-163-177-187-191-195-080340-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CARTERET CRAVEN
CUMBERLAND DARE DUPLIN
EDGECOMBE GREENE HYDE
JOHNSTON JONES LENOIR
MARTIN ONSLOW PAMLICO
PITT SAMPSON TYRRELL
WASHINGTON WAYNE WILSON
$$
AMZ130-135-154-156-158-080340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ALBEMARLE SOUND
PAMLICO SOUND
COASTAL WATERS FROM CAPE HATTERAS TO OCRACOKE INLET NC OUT 20 NM
COASTAL WATERS FROM OCRACOKE INLET TO CAPE LOOKOUT NC OUT 20 NM
COASTAL WATERS FROM CAPE LOOKOUT TO SURF CITY NC OUT 20 NM
$$
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.
$$
STATUS REPORT #3 ON WW 259
VALID 080140Z - 080240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 ESE ILM
TO 25 WSW OAJ TO 15 ESE SOP.
..GUYER..05/08/09
ATTN...WFO...MHX...ILM...RAH...
&&
STATUS REPORT FOR WS 259
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC013-031-049-051-055-061-065-079-095-101-103-107-117-133-137-
147-163-177-187-191-195-080240-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CARTERET CRAVEN
CUMBERLAND DARE DUPLIN
EDGECOMBE GREENE HYDE
JOHNSTON JONES LENOIR
MARTIN ONSLOW PAMLICO
PITT SAMPSON TYRRELL
WASHINGTON WAYNE WILSON
$$
AMZ130-135-154-156-158-080240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ALBEMARLE SOUND
PAMLICO SOUND
COASTAL WATERS FROM CAPE HATTERAS TO OCRACOKE INLET NC OUT 20 NM
COASTAL WATERS FROM OCRACOKE INLET TO CAPE LOOKOUT NC OUT 20 NM
COASTAL WATERS FROM CAPE LOOKOUT TO SURF CITY NC 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 259
VALID 080040Z - 080140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 ESE ILM
TO 25 WSW OAJ TO 15 ESE SOP.
..GUYER..05/08/09
ATTN...WFO...MHX...ILM...RAH...
&&
STATUS REPORT FOR WS 259
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC013-031-049-051-055-061-065-079-095-101-103-107-117-133-137-
147-163-177-187-191-195-080140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CARTERET CRAVEN
CUMBERLAND DARE DUPLIN
EDGECOMBE GREENE HYDE
JOHNSTON JONES LENOIR
MARTIN ONSLOW PAMLICO
PITT SAMPSON TYRRELL
WASHINGTON WAYNE WILSON
$$
AMZ130-135-154-156-158-080140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ALBEMARLE SOUND
PAMLICO SOUND
COASTAL WATERS FROM CAPE HATTERAS TO OCRACOKE INLET NC OUT 20 NM
COASTAL WATERS FROM OCRACOKE INLET TO CAPE LOOKOUT NC OUT 20 NM
COASTAL WATERS FROM CAPE LOOKOUT TO SURF CITY NC OUT 20 NM
$$
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.
$$
STATUS REPORT #1 ON WW 259
VALID 072350Z - 080040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 749
..GUYER..05/07/09
ATTN...WFO...MHX...ILM...RAH...
&&
STATUS REPORT FOR WS 259
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC013-017-019-031-047-049-051-055-061-065-079-095-101-103-107-
117-129-133-137-141-147-155-163-177-187-191-195-080040-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT BLADEN BRUNSWICK
CARTERET COLUMBUS CRAVEN
CUMBERLAND DARE DUPLIN
EDGECOMBE GREENE HYDE
JOHNSTON JONES LENOIR
MARTIN NEW HANOVER ONSLOW
PAMLICO PENDER PITT
ROBESON SAMPSON TYRRELL
WASHINGTON WAYNE WILSON
$$
SCC031-033-041-043-051-067-069-089-080040-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
DARLINGTON DILLON FLORENCE
GEORGETOWN HORRY MARION
MARLBORO WILLIAMSBURG
$$
AMZ130-135-154-156-158-250-252-254-256-080040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ALBEMARLE SOUND
PAMLICO SOUND
COASTAL WATERS FROM CAPE HATTERAS TO OCRACOKE INLET NC OUT 20 NM
COASTAL WATERS FROM OCRACOKE INLET TO CAPE LOOKOUT NC OUT 20 NM
COASTAL WATERS FROM CAPE LOOKOUT TO SURF CITY NC OUT 20 NM
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
COASTAL WATERS FROM LITTLE RIVER INLET TO MURRELLS INLET SC OUT
20 NM
COASTAL WATERS FROM MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT
20 NM
$$
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
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (<5%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
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.