Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 269
NWS STORM PREDICTION CENTER NORMAN OK
205 PM EDT FRI MAY 8 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEASTERN NORTH CAROLINA
MUCH OF CENTRAL AND EASTERN SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 205 PM UNTIL 900
PM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES EITHER SIDE OF A LINE FROM 35 MILES EAST SOUTHEAST
OF GOLDSBORO NORTH CAROLINA TO 50 MILES SOUTHWEST OF ORANGEBURG
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 267...WW 268...
DISCUSSION...AIR MASS AHEAD OF OUTFLOW BOUNDARY NOW ENTERING WATCH
FROM W HAS BECOME MDTLY UNSTABLE AND UNCAPPED. WITH 30KT OF
SHEAR...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY WITH
LOCAL DAMAGING WINDS AND LARGE HAIL IN STRONGEST STORMS.
AVIATION...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 25025.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 269 SEVERE TSTM NC SC CW 081805Z - 090100Z
AXIS..55 STATUTE MILES EITHER SIDE OF LINE..
35ESE GSB/GOLDSBORO NC/ - 50SW OGB/ORANGEBURG SC/
..AVIATION COORDS.. 50NM EITHER SIDE /59NNE ILM - 50NNW SAV/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25025.
LAT...LON 34547693 32258101 33658191 35957787
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 269 Status Report Messages:
STATUS REPORT #1 ON WW 269
VALID 082035Z - 082140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE AGS TO
40 NE OGB TO 15 ENE FLO TO 30 NNE FLO TO 25 SW SOP.
..DIAL..05/08/09
ATTN...WFO...RAH...ILM...MHX...CAE...CHS...
&&
STATUS REPORT FOR WS 269
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC017-019-031-047-049-051-061-079-085-093-101-103-107-129-133-
141-153-155-163-165-191-195-082140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK CARTERET
COLUMBUS CRAVEN CUMBERLAND
DUPLIN GREENE HARNETT
HOKE JOHNSTON JONES
LENOIR NEW HANOVER ONSLOW
PENDER RICHMOND ROBESON
SAMPSON SCOTLAND WAYNE
WILSON
$$
SCC003-005-009-011-015-017-019-027-029-033-035-041-043-049-051-
067-075-085-089-082140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN ALLENDALE BAMBERG
BARNWELL BERKELEY CALHOUN
CHARLESTON CLARENDON COLLETON
DILLON DORCHESTER FLORENCE
GEORGETOWN HAMPTON HORRY
MARION ORANGEBURG SUMTER
WILLIAMSBURG
$$
AMZ158-250-252-254-256-330-350-082140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH 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 (10%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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.