Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 914
NWS STORM PREDICTION CENTER NORMAN OK
1100 AM EDT THU OCT 9 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST FLORIDA
SOUTHEAST GEORGIA
SOUTHERN SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1100 AM UNTIL
600 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
SAVANNAH GEORGIA TO 30 MILES SOUTH SOUTHWEST OF GAINESVILLE
FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
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.
DISCUSSION...ONGOING STRONG/SEVERE STORMS ASSOCIATED WITH THE COLD
CORE LOW OVER SW GA WILL LIKELY PERSIST THROUGH THE AFTERNOON WHILE
SPREADING NEWD/EWD. GIVEN RELATIVELY COOL MID LEVEL
TEMPERATURES...SURFACE HEATING E OF THE ONGOING STORMS...AND
BOUNDARY LAYER DEWPOINTS NEAR 70 F...INSTABILITY SHOULD REMAIN
SUFFICIENT FOR STORMS WITH LARGE HAIL. DEEP LAYER VERTICAL SHEAR
WILL BE SUFFICIENT FOR A FEW ORGANIZED STORMS WITH SUPERCELL AND/OR
BOW CHARACTERISTICS...THOUGH LOW-LEVEL SHEAR WILL BE RELATIVELY
WEAK. DAMAGING WINDS WILL BE POSSIBLE WITH THE STRONGEST
STORMS...AS WELL.
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 450. MEAN STORM
MOTION VECTOR 24025.
...THOMPSON
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 914
NWS STORM PREDICTION CENTER NORMAN OK
1100 AM EDT THU OCT 9 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST FLORIDA
SOUTHEAST GEORGIA
SOUTHERN SOUTH CAROLINA
COASTAL WATERS
EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1100 AM UNTIL
600 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
SAVANNAH GEORGIA TO 30 MILES SOUTH SOUTHWEST OF GAINESVILLE
FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
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.
DISCUSSION...ONGOING STRONG/SEVERE STORMS ASSOCIATED WITH THE COLD
CORE LOW OVER SW GA WILL LIKELY PERSIST THROUGH THE AFTERNOON WHILE
SPREADING NEWD/EWD. GIVEN RELATIVELY COOL MID LEVEL
TEMPERATURES...SURFACE HEATING E OF THE ONGOING STORMS...AND
BOUNDARY LAYER DEWPOINTS NEAR 70 F...INSTABILITY SHOULD REMAIN
SUFFICIENT FOR STORMS WITH LARGE HAIL. DEEP LAYER VERTICAL SHEAR
WILL BE SUFFICIENT FOR A FEW ORGANIZED STORMS WITH SUPERCELL AND/OR
BOW CHARACTERISTICS...THOUGH LOW-LEVEL SHEAR WILL BE RELATIVELY
WEAK. DAMAGING WINDS WILL BE POSSIBLE WITH THE STRONGEST
STORMS...AS WELL.
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 450. MEAN STORM
MOTION VECTOR 24025.
...THOMPSON
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 914 SEVERE TSTM FL GA SC CW 091500Z - 092200Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
45NE SAV/SAVANNAH GA/ - 30SSW GNV/GAINESVILLE FL/
..AVIATION COORDS.. 50NM E/W /35NE SAV - 36ESE CTY/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 24025.
LAT...LON 32597962 29288145 29288345 32598168
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 914 Status Report Messages:
STATUS REPORT #6 ON WW 914
VALID 092140Z - 092200Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W OCF TO
15 W GNV TO 50 ESE VLD TO 30 SSW AYS TO 15 N SSI TO 80 ENE SSI.
WW 914 WILL BE ALLOWED TO EXPIRE AT 092200Z.
..JEWELL..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-083-089-107-109-125-092200-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER MARION NASSAU
PUTNAM ST. JOHNS UNION
$$
GAC039-049-127-092200-
GA
. GEORGIA COUNTIES INCLUDED ARE
CAMDEN CHARLTON GLYNN
$$
AMZ450-452-454-092200-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL 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 #5 ON WW 914
VALID 092030Z - 092140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 E VLD TO
15 N SSI TO 70 SE SAV TO 35 SE CHS TO 20 W CHS TO 25 S OGB TO 20
SSW OGB.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2322
..JEWELL..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-041-047-083-089-107-109-121-125-
092140-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER GILCHRIST HAMILTON
MARION NASSAU PUTNAM
ST. JOHNS SUWANNEE UNION
$$
GAC039-049-127-092140-
GA
. GEORGIA COUNTIES INCLUDED ARE
CAMDEN CHARLTON GLYNN
$$
SCC015-019-035-092140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BERKELEY CHARLESTON DORCHESTER
$$
AMZ330-450-452-454-092140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM
$$
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.
$$
STATUS REPORT #4 ON WW 914
VALID 091955Z - 092040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSW AYS
TO 10 NW SSI TO 25 SE SAV TO 30 ENE SAV TO 45 NE SAV.
..SPC..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-041-047-083-089-107-109-121-125-
092040-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER GILCHRIST HAMILTON
MARION NASSAU PUTNAM
ST. JOHNS SUWANNEE UNION
$$
GAC039-049-051-127-092040-
GA
. GEORGIA COUNTIES INCLUDED ARE
CAMDEN CHARLTON CHATHAM
GLYNN
$$
SCC013-015-019-029-035-092040-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT BERKELEY CHARLESTON
COLLETON DORCHESTER
$$
AMZ330-350-352-354-450-452-454-092040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL 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 914
VALID 091825Z - 091940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-041-047-083-089-107-109-121-125-
091940-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER GILCHRIST HAMILTON
MARION NASSAU PUTNAM
ST. JOHNS SUWANNEE UNION
$$
GAC001-003-005-025-029-031-039-043-049-051-065-069-101-103-109-
127-161-165-179-183-191-229-251-267-299-305-091940-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BRANTLEY BRYAN BULLOCH
CAMDEN CANDLER CHARLTON
CHATHAM CLINCH COFFEE
ECHOLS EFFINGHAM EVANS
GLYNN JEFF DAVIS JENKINS
LIBERTY LONG MCINTOSH
PIERCE SCREVEN TATTNALL
WARE WAYNE
$$
SCC005-013-015-019-029-035-049-053-091940-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ALLENDALE BEAUFORT BERKELEY
CHARLESTON COLLETON DORCHESTER
HAMPTON JASPER
$$
AMZ330-350-352-354-450-452-454-091940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM
$$
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.
$$
STATUS REPORT #2 ON WW 914
VALID 091730Z - 091840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-041-047-083-089-107-109-121-125-
091840-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER GILCHRIST HAMILTON
MARION NASSAU PUTNAM
ST. JOHNS SUWANNEE UNION
$$
GAC001-003-005-025-029-031-039-043-049-051-065-069-101-103-109-
127-161-165-179-183-191-229-251-267-299-305-091840-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BRANTLEY BRYAN BULLOCH
CAMDEN CANDLER CHARLTON
CHATHAM CLINCH COFFEE
ECHOLS EFFINGHAM EVANS
GLYNN JEFF DAVIS JENKINS
LIBERTY LONG MCINTOSH
PIERCE SCREVEN TATTNALL
WARE WAYNE
$$
SCC005-013-015-019-029-035-049-053-091840-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ALLENDALE BEAUFORT BERKELEY
CHARLESTON COLLETON DORCHESTER
HAMPTON JASPER
$$
AMZ330-350-352-354-450-452-454-091840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL 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 914
VALID 091620Z - 091740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..10/09/08
ATTN...WFO...JAX...CHS...
&&
STATUS REPORT FOR WS 914
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-031-035-041-047-083-089-107-109-121-125-
091740-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DUVAL
FLAGLER GILCHRIST HAMILTON
MARION NASSAU PUTNAM
ST. JOHNS SUWANNEE UNION
$$
GAC001-003-005-025-029-031-039-043-049-051-065-069-101-103-109-
127-161-165-179-183-191-229-251-267-299-305-091740-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BRANTLEY BRYAN BULLOCH
CAMDEN CANDLER CHARLTON
CHATHAM CLINCH COFFEE
ECHOLS EFFINGHAM EVANS
GLYNN JEFF DAVIS JENKINS
LIBERTY LONG MCINTOSH
PIERCE SCREVEN TATTNALL
WARE WAYNE
$$
SCC005-013-015-019-029-035-049-053-091740-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ALLENDALE BEAUFORT BERKELEY
CHARLESTON COLLETON DORCHESTER
HAMPTON JASPER
$$
AMZ330-350-352-354-450-452-454-091740-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM
$$
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 (<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 (60%)
|
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.