Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 150
NWS STORM PREDICTION CENTER NORMAN OK
1235 PM EDT MON APR 13 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN FLORIDA
SOUTHEASTERN GEORGIA
COASTAL WATERS
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 1235 PM UNTIL
700 PM EDT.
TORNADOES...HAIL TO 1.5 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 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST NORTHWEST OF
VALDOSTA GEORGIA TO 45 MILES EAST OF BRUNSWICK GEORGIA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).
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 149...
DISCUSSION...SURFACE WARM FRONT CONTINUES TO LIFT NWD INTO SERN GA
LATE THIS MORNING...AND SHOULD SUPPORT MODEST SURFACE-BASED
INSTABILITY AHEAD OF BROKEN LINE OF SUPERCELLS/SMALL BOW ECHOES
MOVING EWD. SHEAR REMAINS QUITE STRONG AND WILL SUPPORT THREATS OF
TORNADOES AND DAMAGING WINDS...ALONG WITH ISOLATED LARGE HAIL...WITH
THE STRONGER STORMS. VERY HEAVY RAINFALL WILL BE AN ADDITIONAL
HAZARD.
AVIATION...TORNADOES AND 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
500. MEAN STORM MOTION VECTOR 26035.
...EVANS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 150 TORNADO FL GA CW 131635Z - 132300Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
20WNW VLD/VALDOSTA GA/ - 45E SSI/BRUNSWICK GA/
..AVIATION COORDS.. 50NM N/S /45ENE TLH - 64NE CRG/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26035.
LAT...LON 31768358 32028069 30288069 30028358
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 150 Status Report Messages:
STATUS REPORT #4 ON WW 150
VALID 132230Z - 132340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SE MGR TO
35 ESE SAV.
..KERR..04/13/09
ATTN...WFO...JAX...CHS...FFC...
&&
STATUS REPORT FOR WT 150
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-007-019-023-031-041-047-089-109-121-125-132340-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER BRADFORD CLAY
COLUMBIA DUVAL GILCHRIST
HAMILTON NASSAU ST. JOHNS
SUWANNEE UNION
$$
GAC025-039-065-101-127-299-132340-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRANTLEY CAMDEN CLINCH
ECHOLS GLYNN WARE
$$
SCC013-019-029-053-132340-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CHARLESTON COLLETON
JASPER
$$
AMZ330-350-352-354-450-452-132340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHARLESTON HARBOR
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
$$
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.
$$
STATUS REPORT #3 ON WW 150
VALID 132145Z - 132240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE MGR
TO 15 SW SAV.
..KERR..04/13/09
ATTN...WFO...JAX...CHS...FFC...
&&
STATUS REPORT FOR WT 150
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-007-019-023-031-041-047-089-109-121-125-132240-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER BRADFORD CLAY
COLUMBIA DUVAL GILCHRIST
HAMILTON NASSAU ST. JOHNS
SUWANNEE UNION
$$
GAC025-029-039-051-065-101-127-179-183-191-299-132240-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRANTLEY BRYAN CAMDEN
CHATHAM CLINCH ECHOLS
GLYNN LIBERTY LONG
MCINTOSH WARE
$$
SCC013-019-029-053-132240-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
BEAUFORT CHARLESTON COLLETON
JASPER
$$
AMZ330-350-352-354-450-452-132240-
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 150
VALID 131940Z - 132040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNE MGR
TO 45 WNW AYS TO 30 NW AYS TO 20 S VDI.
..BROYLES..04/13/09
ATTN...WFO...JAX...CHS...FFC...
&&
STATUS REPORT FOR WT 150
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-007-019-023-031-041-047-089-109-121-125-132040-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER BRADFORD CLAY
COLUMBIA DUVAL GILCHRIST
HAMILTON NASSAU ST. JOHNS
SUWANNEE UNION
$$
GAC001-005-019-025-029-039-051-065-101-109-127-179-183-191-229-
299-305-132040-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING BACON BERRIEN
BRANTLEY BRYAN CAMDEN
CHATHAM CLINCH ECHOLS
EVANS GLYNN LIBERTY
LONG MCINTOSH PIERCE
WARE WAYNE
$$
AMZ354-450-452-132040-
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
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE 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 150
VALID 131845Z - 131940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/13/09
ATTN...WFO...JAX...CHS...FFC...
&&
STATUS REPORT FOR WT 150
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC003-007-019-023-031-041-047-089-109-121-125-131940-
FL
. FLORIDA COUNTIES INCLUDED ARE
BAKER BRADFORD CLAY
COLUMBIA DUVAL GILCHRIST
HAMILTON NASSAU ST. JOHNS
SUWANNEE UNION
$$
GAC001-003-005-025-029-039-049-051-065-069-101-109-127-161-179-
183-191-209-229-267-271-279-299-305-309-131940-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BRANTLEY BRYAN CAMDEN
CHARLTON CHATHAM CLINCH
COFFEE ECHOLS EVANS
GLYNN JEFF DAVIS LIBERTY
LONG MCINTOSH MONTGOMERY
PIERCE TATTNALL TELFAIR
TOOMBS WARE WAYNE
WHEELER
$$
AMZ354-450-452-131940-
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
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE 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 (50%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
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
|
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.