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SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 129
NWS STORM PREDICTION CENTER NORMAN OK
1240 PM EDT FRI APR 19 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN PANHANDLE OF FLORIDA
CENTRAL...EASTERN AND SOUTHERN GEORGIA
WEST-CENTRAL SOUTH CAROLINA
COASTAL WATERS
* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL
800 PM EDT.
* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
A FEW TORNADOES POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHWEST OF
AUGUSTA GEORGIA TO 35 MILES SOUTH SOUTHWEST OF TALLAHASSEE
FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...TSTMS FCST TO CONTINUE INCREASING IN INTENSITY AND
COVERAGE ALONG/AHEAD OF SFC COLD FRONT...AS
1. BOUNDARY-LAYER AIR MASS DIABATICALLY DESTABILIZES...WITH RICH
THETAE OFFSETTING WEAK LAPSE RATES ALOFT...AND
2. FAVORABLE DEEP-LAYER SHEAR SPREADS EWD OVER AREA ACROSS IMMEDIATE
PREFRONTAL CORRIDOR.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
VECTOR 24035.
...EDWARDS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 129 SEVERE TSTM FL GA SC CW 191640Z - 200000Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
60NW AGS/AUGUSTA GA/ - 35SSW TLH/TALLAHASSEE FL/
..AVIATION COORDS.. 60NM E/W /32WNW IRQ - 39SSW TLH/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 33978148 29938340 29938573 33978393
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 129 Status Report Messages:
STATUS REPORT #5 ON WW 129
VALID 192240Z - 192340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSE AGS
TO 15 NE AGS TO 30 WNW CAE.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 541
..COHEN..04/19/13
ATTN...WFO...TAE...FFC...CAE...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SCC003-009-011-017-027-063-075-079-085-192340-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN BAMBERG BARNWELL
CALHOUN CLARENDON LEXINGTON
ORANGEBURG RICHLAND SUMTER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 129
VALID 192130Z - 192240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 S TLH TO
30 ENE TLH TO 30 WSW AYS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 536
..COHEN..04/19/13
ATTN...WFO...TAE...FFC...CAE...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC065-079-123-192240-
FL
. FLORIDA COUNTIES INCLUDED ARE
JEFFERSON MADISON TAYLOR
$$
SCC003-009-011-017-027-063-075-079-085-192240-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN BAMBERG BARNWELL
CALHOUN CLARENDON LEXINGTON
ORANGEBURG RICHLAND SUMTER
$$
GMZ730-755-192240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
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 129
VALID 192045Z - 192140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSW TLH
TO 10 NE TLH TO 15 SE MGR TO 40 WSW VDI TO 35 SSW AGS TO 40 W CAE.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 536
..MARSH..04/19/13
ATTN...WFO...TAE...FFC...CAE...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC065-073-079-123-192140-
FL
. FLORIDA COUNTIES INCLUDED ARE
JEFFERSON LEON MADISON
TAYLOR
$$
GAC019-027-033-075-107-173-185-209-245-271-279-283-309-192140-
GA
. GEORGIA COUNTIES INCLUDED ARE
BERRIEN BROOKS BURKE
COOK EMANUEL LANIER
LOWNDES MONTGOMERY RICHMOND
TELFAIR TOOMBS TREUTLEN
WHEELER
$$
SCC003-009-011-017-027-063-075-079-085-192140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN BAMBERG BARNWELL
CALHOUN CLARENDON LEXINGTON
ORANGEBURG RICHLAND SUMTER
$$
GMZ730-755-192140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM
$$
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.
$$
STATUS REPORT #2 ON WW 129
VALID 191920Z - 192040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N AAF TO
30 NNW TLH TO 25 N MGR TO 40 ENE MCN TO 35 E AHN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 534
..MARSH..04/19/13
ATTN...WFO...TAE...FFC...CAE...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC037-065-073-077-079-123-129-192040-
FL
. FLORIDA COUNTIES INCLUDED ARE
FRANKLIN JEFFERSON LEON
LIBERTY MADISON TAYLOR
WAKULLA
$$
GAC017-019-023-027-033-071-073-075-091-107-125-131-155-163-167-
173-175-181-185-189-209-235-245-265-271-275-277-279-283-287-301-
303-309-315-317-321-192040-
GA
. GEORGIA COUNTIES INCLUDED ARE
BEN HILL BERRIEN BLECKLEY
BROOKS BURKE COLQUITT
COLUMBIA COOK DODGE
EMANUEL GLASCOCK GRADY
IRWIN JEFFERSON JOHNSON
LANIER LAURENS LINCOLN
LOWNDES MCDUFFIE MONTGOMERY
PULASKI RICHMOND TALIAFERRO
TELFAIR THOMAS TIFT
TOOMBS TREUTLEN TURNER
WARREN WASHINGTON WHEELER
WILCOX WILKES WORTH
$$
SCC003-009-011-017-027-037-063-065-075-079-081-085-192040-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN BAMBERG BARNWELL
CALHOUN CLARENDON EDGEFIELD
LEXINGTON MCCORMICK ORANGEBURG
RICHLAND SALUDA SUMTER
$$
GMZ730-755-192040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
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 129
VALID 191820Z - 191940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE PFN TO
10 S MAI TO 40 ENE MAI TO 20 SSW MCN TO AHN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 534
..MARSH..04/19/13
ATTN...WFO...TAE...FFC...CAE...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
FLC013-037-039-045-065-073-077-079-123-129-191940-
FL
. FLORIDA COUNTIES INCLUDED ARE
CALHOUN FRANKLIN GADSDEN
GULF JEFFERSON LEON
LIBERTY MADISON TAYLOR
WAKULLA
$$
GAC009-017-019-023-027-033-071-073-075-081-087-091-093-095-107-
125-131-133-141-153-155-163-167-169-173-175-181-185-189-205-209-
221-235-237-245-265-271-275-277-279-283-287-289-301-303-309-315-
317-319-321-191940-
GA
. GEORGIA COUNTIES INCLUDED ARE
BALDWIN BEN HILL BERRIEN
BLECKLEY BROOKS BURKE
COLQUITT COLUMBIA COOK
CRISP DECATUR DODGE
DOOLY DOUGHERTY EMANUEL
GLASCOCK GRADY GREENE
HANCOCK HOUSTON IRWIN
JEFFERSON JOHNSON JONES
LANIER LAURENS LINCOLN
LOWNDES MCDUFFIE MITCHELL
MONTGOMERY OGLETHORPE PULASKI
PUTNAM RICHMOND TALIAFERRO
TELFAIR THOMAS TIFT
TOOMBS TREUTLEN TURNER
TWIGGS WARREN WASHINGTON
WHEELER WILCOX WILKES
WILKINSON WORTH
$$
SCC003-009-011-017-027-037-063-065-075-079-081-085-191940-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
AIKEN BAMBERG BARNWELL
CALHOUN CLARENDON EDGEFIELD
LEXINGTON MCCORMICK ORANGEBURG
RICHLAND SALUDA SUMTER
$$
GMZ730-750-755-191940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM
COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM
$$
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 (10%)
|
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
|
Low (<5%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (<5%)
|
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.
weather.gov 
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