Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 30
NWS STORM PREDICTION CENTER NORMAN OK
155 AM EST THU FEB 19 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN FLORIDA AND THE FLORIDA PANHANDLE
SOUTH GEORGIA
COASTAL WATERS
EFFECTIVE THIS THURSDAY MORNING FROM 155 AM UNTIL 900 AM EST.
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 145 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES EAST NORTHEAST OF
WAYCROSS GEORGIA TO 5 MILES WEST SOUTHWEST OF APALACHICOLA
FLORIDA. 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...THIS TORNADO WATCH REPLACES SEVERE
THUNDERSTORM WATCH NUMBER 29. WATCH NUMBER 29 WILL NOT BE IN
EFFECT AFTER 155 AM EST. CONTINUE...WW 26...WW 27...WW 28...
DISCUSSION...SUSTAINED STORMS/SUPERCELLS EXPECTED TO PERSIST THROUGH
AT LEAST 12Z ALONG LOOSELY-ORGANIZED PRE-FRONTAL CONFLUENCE AXIS
EXTENDING WSW FROM NEAR VAD. ABSENCE OF STRONG LINEAR
FORCING...LONG RESIDENCE TIMES OF STORMS IN SATELLITE-DERIVED PW
AXIS...VERY STRONG/SLIGHTLY CURVED WIND PROFILES...AND EXPECTED
STRENGTHENING OF WIND FIELD/ LARGE SCALE ASCENT WITH CONTINUED
AMPLIFICATION OF LARGER SCALE TROUGH SUGGEST POTENTIAL FOR
SEMI-DISCRETE SVR STORMS AND ISOLD STRONG TORNADOES.
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
450. MEAN STORM MOTION VECTOR 27045.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 30 TORNADO FL GA CW 190655Z - 191400Z
AXIS..145 STATUTE MILES EAST AND WEST OF LINE..
35ENE AYS/WAYCROSS GA/ - 5WSW AAF/APALACHICOLA FL/
..AVIATION COORDS.. 125NM E/W /34E AMG - 64SW TLH/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 27045.
REPLACES WW 29..GA CW
LAT...LON 31427938 29688269 29688751 31428430
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 30 Status Report Messages:
STATUS REPORT #5 ON WW 30
VALID 191235Z - 191340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WNW CTY
TO 25 NW GNV TO 25 SSW JAX.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 138.
..PETERS..02/19/09
ATTN...WFO...JAX...TAE...
&&
STATUS REPORT FOR WT 30
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-007-019-029-031-041-109-191340-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BRADFORD CLAY
DIXIE DUVAL GILCHRIST
ST. JOHNS
$$
AMZ452-GMZ765-191340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM
COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM
$$
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.
$$
STATUS REPORT #4 ON WW 30
VALID 191130Z - 191240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SSE TLH
TO 25 NNE CTY TO 35 WSW JAX TO 20 ENE JAX TO 30 NE SSI.
..PETERS..02/19/09
ATTN...WFO...JAX...TAE...
&&
STATUS REPORT FOR WT 30
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-029-031-041-067-109-121-125-191240-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DIXIE
DUVAL GILCHRIST LAFAYETTE
ST. JOHNS SUWANNEE UNION
$$
AMZ450-452-GMZ765-191240-
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 SUWANNEE RIVER TO KEATON BEACH 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 30
VALID 191045Z - 191140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 WSW AAF TO
30 SE TLH TO 30 SSE VLD TO 20 SE AYS TO 25 NNW SSI.
..PETERS..02/19/09
ATTN...WFO...JAX...TAE...
&&
STATUS REPORT FOR WT 30
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-029-031-037-041-047-067-089-109-121-123-
125-191140-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DIXIE
DUVAL FRANKLIN GILCHRIST
HAMILTON LAFAYETTE NASSAU
ST. JOHNS SUWANNEE TAYLOR
UNION
$$
GAC025-039-049-127-191140-
GA
. GEORGIA COUNTIES INCLUDED ARE
BRANTLEY CAMDEN CHARLTON
GLYNN
$$
AMZ450-452-GMZ730-750-755-765-191140-
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
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM
COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH 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 30
VALID 190930Z - 191040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 65 SW PFN TO
20 ESE PFN TO 15 NNW TLH TO 25 N VLD TO 25 WNW AYS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 137.
..PETERS..02/19/09
ATTN...WFO...JAX...TAE...
&&
STATUS REPORT FOR WT 30
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-007-019-023-029-031-037-039-041-045-047-065-067-073-
077-079-089-109-121-123-125-129-191040-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BRADFORD
CLAY COLUMBIA DIXIE
DUVAL FRANKLIN GADSDEN
GILCHRIST GULF HAMILTON
JEFFERSON LAFAYETTE LEON
LIBERTY MADISON NASSAU
ST. JOHNS SUWANNEE TAYLOR
UNION WAKULLA
$$
GAC001-003-005-019-025-027-039-049-065-069-101-127-161-173-185-
229-275-299-305-191040-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BERRIEN BRANTLEY BROOKS
CAMDEN CHARLTON CLINCH
COFFEE ECHOLS GLYNN
JEFF DAVIS LANIER LOWNDES
PIERCE THOMAS WARE
WAYNE
$$
AMZ450-452-GMZ730-750-755-765-191040-
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
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM
COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH 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 30
VALID 190850Z - 190940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SSE PNS
TO 45 S CEW TO 35 S CEW.
..PETERS..02/19/09
ATTN...WFO...JAX...TAE...
&&
STATUS REPORT FOR WT 30
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC001-003-005-007-013-019-023-029-031-037-039-041-045-047-059-
063-065-067-073-077-079-089-109-121-123-125-129-131-133-
190940-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BAY
BRADFORD CALHOUN CLAY
COLUMBIA DIXIE DUVAL
FRANKLIN GADSDEN GILCHRIST
GULF HAMILTON HOLMES
JACKSON JEFFERSON LAFAYETTE
LEON LIBERTY MADISON
NASSAU ST. JOHNS SUWANNEE
TAYLOR UNION WAKULLA
WALTON WASHINGTON
$$
GAC001-003-005-007-017-019-025-027-039-049-065-069-071-075-087-
095-101-127-131-155-161-173-185-201-205-229-253-275-277-299-305-
321-190940-
GA
. GEORGIA COUNTIES INCLUDED ARE
APPLING ATKINSON BACON
BAKER BEN HILL BERRIEN
BRANTLEY BROOKS CAMDEN
CHARLTON CLINCH COFFEE
COLQUITT COOK DECATUR
DOUGHERTY ECHOLS GLYNN
GRADY IRWIN JEFF DAVIS
LANIER LOWNDES MILLER
MITCHELL PIERCE SEMINOLE
THOMAS TIFT WARE
WAYNE WORTH
$$
AMZ450-452-GMZ730-750-755-765-190940-
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
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM
COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH 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 (30%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (30%)
|
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
|
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.