Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 308
NWS STORM PREDICTION CENTER NORMAN OK
245 PM EDT SUN MAY 11 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN FLORIDA
SOUTHEAST GEORGIA
COASTAL WATERS
EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 245 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 100 STATUTE
MILES EITHER SIDE OF A LINE FROM 50 MILES NORTHWEST OF WAYCROSS
GEORGIA TO 55 MILES EAST SOUTHEAST OF VALDOSTA GEORGIA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
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 306...WW 307...
DISCUSSION...TSTMS/SUPERCELLS HAVE INTENSIFIED OVER THE LAST HOUR
ALONG RESIDUAL OUTFLOW BOUNDARY FROM MORNING MCS NOW OFFSHORE.
ADDITIONAL DEVELOPMENT APPEARS TO BE TAKING PLACE ALONG THE COLD
FRONT...AND NEAR OUTFLOW/COLD FRONT INTERSECTION INVOF SCNTRL GA.
VERY UNSTABLE AIR MASS AND PRONOUNCED/STRONG WLY FLOW ALOFT WILL AID
STORM PERSISTENCE ACROSS THE REGION THIS AFTERNOON WITH THE
POSSIBILITY OF VERY LARGE HAIL AND PERHAPS A COUPLE OF TORNADOES
WITH EXISTING STORMS...AND ANY ADDITIONAL ACTIVITY.
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
550. MEAN STORM MOTION VECTOR 29035.
...CARBIN
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 308 TORNADO FL GA CW 111845Z - 120000Z
AXIS..100 STATUTE MILES EITHER SIDE OF LINE..
50NW AYS/WAYCROSS GA/ - 55ESE VLD/VALDOSTA GA/
..AVIATION COORDS.. 85NM EITHER SIDE /28WNW AMG - 48W CRG/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29035.
LAT...LON 32388145 31108091 29828393 31128451
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 308 Status Report Messages:
STATUS REPORT #5 ON WW 308
VALID 112345Z - 120000Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SSI
TO 25 NNW SSI TO 35 ESE VDI TO 25 NNW SAV.
WW 308 WILL BE ALLOWED TO EXPIRE AT 120000Z.
..CROSBIE..05/11/08
ATTN...WFO...JAX...TAE...CHS...
&&
STATUS REPORT FOR WT 308
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC029-051-179-183-191-120000-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRYAN CHATHAM LIBERTY
LONG MCINTOSH
$$
SCC013-019-029-053-120000-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CHARLESTON COLLETON
JASPER
$$
AMZ330-350-352-354-120000-
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 308
VALID 112335Z - 120040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SSI
TO 25 NNW SSI TO 35 ESE VDI TO 25 NNW SAV.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 896.
..CROSBIE..05/11/08
ATTN...WFO...JAX...TAE...CHS...
&&
STATUS REPORT FOR WT 308
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC029-051-179-183-191-120040-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRYAN CHATHAM LIBERTY
LONG MCINTOSH
$$
SCC013-019-029-053-120040-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CHARLESTON COLLETON
JASPER
$$
AMZ330-350-352-354-120040-
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 308
VALID 112140Z - 112240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N JAX TO
45 W JAX TO 30 SSW AYS TO 15 NNW AYS TO 10 W SAV.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 895
..CROSBIE..05/11/08
ATTN...WFO...JAX...TAE...CHS...
&&
STATUS REPORT FOR WT 308
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC089-112240-
FL
. FLORIDA COUNTIES INCLUDED ARE
NASSAU
$$
GAC025-029-039-049-051-127-179-183-191-229-299-305-112240-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRANTLEY BRYAN CAMDEN
CHARLTON CHATHAM GLYNN
LIBERTY LONG MCINTOSH
PIERCE WARE WAYNE
$$
AMZ354-450-112240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 308
VALID 112030Z - 112140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ESE TLH
TO 20 WSW MGR TO 30 SSE VDI TO 15 NW SAV.
..CROSBIE..05/11/08
ATTN...WFO...JAX...TAE...CHS...
&&
STATUS REPORT FOR WT 308
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-023-047-065-079-089-121-112140-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER COLUMBIA HAMILTON
JEFFERSON MADISON NASSAU
SUWANNEE
$$
GAC001-003-005-019-025-027-029-039-049-051-065-069-075-101-127-
173-179-183-185-191-229-275-299-305-112140-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BERRIEN BRANTLEY BROOKS
BRYAN CAMDEN CHARLTON
CHATHAM CLINCH COFFEE
COOK ECHOLS GLYNN
LANIER LIBERTY LONG
LOWNDES MCINTOSH PIERCE
THOMAS WARE WAYNE
$$
AMZ354-450-112140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 308
VALID 111930Z - 112040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSW ABY
TO 40 SW VDI TO 20 E VDI.
..CROSBIE..05/11/08
ATTN...WFO...JAX...TAE...CHS...
&&
STATUS REPORT FOR WT 308
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-023-047-065-079-089-121-112040-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER COLUMBIA HAMILTON
JEFFERSON MADISON NASSAU
SUWANNEE
$$
GAC001-003-005-019-025-027-029-039-049-051-065-069-071-075-087-
101-109-127-131-155-161-173-179-183-185-191-205-229-267-275-277-
299-305-112040-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BERRIEN BRANTLEY BROOKS
BRYAN CAMDEN CHARLTON
CHATHAM CLINCH COFFEE
COLQUITT COOK DECATUR
ECHOLS EVANS GLYNN
GRADY IRWIN JEFF DAVIS
LANIER LIBERTY LONG
LOWNDES MCINTOSH MITCHELL
PIERCE TATTNALL THOMAS
TIFT WARE WAYNE
$$
AMZ354-450-112040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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.