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The expiration time in the watch graphic is amended if the watch is
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Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 242
NWS STORM PREDICTION CENTER NORMAN OK
240 PM EDT MON MAY 4 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN AND EASTERN GEORGIA
SOUTHEAST NORTH CAROLINA
MIDLANDS AND EASTERN SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 240 PM UNTIL 800
PM EDT.
HAIL TO 1.5 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 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST
SOUTHWEST OF AUGUSTA GEORGIA TO 30 MILES SOUTH SOUTHEAST OF
WILMINGTON NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 238...WW 239...WW
240...WW 241...
DISCUSSION...CLUSTER OF STORMS ACROSS EASTERN GA ASSOCIATED WITH
REMNANT MCV APPEAR TO BE INCREASING WITHIN INSTABILITY GRADIENT
ACROSS LOWER SAVANNAH RIVER VALLEY. EXPECT THIS ACTIVITY TO MOVE
INTO SC THIS AFTERNOON COINCIDENT WITH INCREASE IN DEEP-LAYER SHEAR
SUFFICIENT FOR PERSISTENT UPDRAFTS. MEANWHILE...STORMS ALONG LEE
TROUGH AND SEA BREEZE BOUNDARIES ACROSS SERN NC WILL POSE SOME
THREAT OF HAIL/WIND EARLY BEFORE MOVING NEWD INTO WW 241.
HOWEVER...IT APPEARS THAT UPSCALE DEVELOPMENT OF STORMS ACROSS SC
MAY BEGIN TO AFFECT PORTIONS OF UPSTATE SC AND SERN NC LATE TODAY.
AVIATION...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 450. MEAN STORM
MOTION VECTOR 26025.
...CARBIN
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 242 SEVERE TSTM GA NC SC CW 041840Z - 050000Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
50WSW AGS/AUGUSTA GA/ - 30SSE ILM/WILMINGTON NC/
..AVIATION COORDS.. 45NM N/S /49SW IRQ - 30SSE ILM/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 26025.
LAT...LON 33798276 34597769 33157769 32368276
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 242 Status Report Messages:
STATUS REPORT #4 ON WW 242
VALID 042255Z - 042340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE VDI
TO 35 W CAE.
..HURLBUT..05/04/09
ATTN...WFO...CAE...FFC...CHS...ILM...RAH...
&&
STATUS REPORT FOR WS 242
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC165-251-042340-
GA
. GEORGIA COUNTIES INCLUDED ARE
JENKINS SCREVEN
$$
NCC017-019-047-129-141-155-165-042340-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER ROBESON
SCOTLAND
$$
SCC003-005-009-011-015-017-019-027-029-031-033-035-041-043-049-
051-055-061-063-067-069-075-079-081-085-089-042340-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN ALLENDALE BAMBERG
BARNWELL BERKELEY CALHOUN
CHARLESTON CLARENDON COLLETON
DARLINGTON DILLON DORCHESTER
FLORENCE GEORGETOWN HAMPTON
HORRY KERSHAW LEE
LEXINGTON MARION MARLBORO
ORANGEBURG RICHLAND SALUDA
SUMTER WILLIAMSBURG
$$
AMZ250-252-254-256-330-350-042340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
COASTAL WATERS FROM LITTLE RIVER INLET TO MURRELLS INLET SC OUT
20 NM
COASTAL WATERS FROM MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT
20 NM
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
$$
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.
$$
STATUS REPORT #3 ON WW 242
VALID 042140Z - 042240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W VDI TO
35 E AHN.
..HURLBUT..05/04/09
ATTN...WFO...CAE...FFC...CHS...ILM...RAH...
&&
STATUS REPORT FOR WS 242
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC033-073-107-125-163-165-181-189-245-251-042240-
GA
. GEORGIA COUNTIES INCLUDED ARE
BURKE COLUMBIA EMANUEL
GLASCOCK JEFFERSON JENKINS
LINCOLN MCDUFFIE RICHMOND
SCREVEN
$$
NCC017-019-047-129-141-155-165-042240-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER ROBESON
SCOTLAND
$$
SCC003-005-009-011-015-017-019-027-029-031-033-035-037-041-043-
049-051-055-061-063-065-067-069-075-079-081-085-089-042240-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN ALLENDALE BAMBERG
BARNWELL BERKELEY CALHOUN
CHARLESTON CLARENDON COLLETON
DARLINGTON DILLON DORCHESTER
EDGEFIELD FLORENCE GEORGETOWN
HAMPTON HORRY KERSHAW
LEE LEXINGTON MCCORMICK
MARION MARLBORO ORANGEBURG
RICHLAND SALUDA SUMTER
WILLIAMSBURG
$$
AMZ250-252-254-256-330-350-042240-
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
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 242
VALID 042040Z - 042140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..05/04/09
ATTN...WFO...CAE...FFC...CHS...ILM...RAH...
&&
STATUS REPORT FOR WS 242
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC033-073-107-125-141-163-165-167-181-189-245-251-265-301-303-
317-042140-
GA
. GEORGIA COUNTIES INCLUDED ARE
BURKE COLUMBIA EMANUEL
GLASCOCK HANCOCK JEFFERSON
JENKINS JOHNSON LINCOLN
MCDUFFIE RICHMOND SCREVEN
TALIAFERRO WARREN WASHINGTON
WILKES
$$
NCC017-019-047-129-141-155-165-042140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER ROBESON
SCOTLAND
$$
SCC003-005-009-011-015-017-019-027-029-031-033-035-037-041-043-
049-051-055-061-063-065-067-069-075-079-081-085-089-042140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN ALLENDALE BAMBERG
BARNWELL BERKELEY CALHOUN
CHARLESTON CLARENDON COLLETON
DARLINGTON DILLON DORCHESTER
EDGEFIELD FLORENCE GEORGETOWN
HAMPTON HORRY KERSHAW
LEE LEXINGTON MCCORMICK
MARION MARLBORO ORANGEBURG
RICHLAND SALUDA SUMTER
WILLIAMSBURG
$$
AMZ250-252-254-256-330-350-042140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM SURF CITY TO CAPE FEAR NC OUT 20 NM
COASTAL WATERS FROM CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20
NM
COASTAL WATERS FROM LITTLE RIVER INLET TO MURRELLS INLET SC OUT
20 NM
COASTAL WATERS FROM MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT
20 NM
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
$$
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.
$$
STATUS REPORT #1 ON WW 242
VALID 041935Z - 042040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..05/04/09
ATTN...WFO...CAE...FFC...CHS...ILM...RAH...
&&
STATUS REPORT FOR WS 242
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC033-073-107-125-141-163-165-167-181-189-245-251-265-301-303-
317-042040-
GA
. GEORGIA COUNTIES INCLUDED ARE
BURKE COLUMBIA EMANUEL
GLASCOCK HANCOCK JEFFERSON
JENKINS JOHNSON LINCOLN
MCDUFFIE RICHMOND SCREVEN
TALIAFERRO WARREN WASHINGTON
WILKES
$$
NCC017-019-047-129-141-155-165-042040-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
BLADEN BRUNSWICK COLUMBUS
NEW HANOVER PENDER ROBESON
SCOTLAND
$$
SCC003-005-009-011-015-017-019-027-029-031-033-035-037-041-043-
049-051-055-061-063-065-067-069-075-079-081-085-089-042040-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN ALLENDALE BAMBERG
BARNWELL BERKELEY CALHOUN
CHARLESTON CLARENDON COLLETON
DARLINGTON DILLON DORCHESTER
EDGEFIELD FLORENCE GEORGETOWN
HAMPTON HORRY KERSHAW
LEE LEXINGTON MCCORMICK
MARION MARLBORO ORANGEBURG
RICHLAND SALUDA SUMTER
WILLIAMSBURG
$$
AMZ250-252-254-256-330-350-042040-
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
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 (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
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 (30%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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.