Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 29
NWS STORM PREDICTION CENTER NORMAN OK
1150 AM CST SAT FEB 18 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST MISSISSIPPI
COASTAL WATERS
EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 1150 AM UNTIL
500 PM CST.
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 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTH SOUTHWEST OF
PENSACOLA FLORIDA TO 55 MILES NORTH NORTHWEST OF PENSACOLA
FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
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 28...
DISCUSSION...MESOLOW AND ASSOCIATED COMPACT SVR MCS CONTINUE TO
TRACK EAST ALONG A WARM FRONT OVER SOUTHEAST LA. EXPECT THIS
DISTURBANCE TO MOVE ACROSS THE DELTA TO MOBILE BAY OVER THE NEXT
COUPLE OF HOURS AS LARGER SYNOPTIC LOW TAKES FORM ACROSS THE WRN
GULF. WITH TRUE MARITIME TROPICAL AIRMASS REMAINING TO THE SOUTH OF
THE CONVECTIVE COMPLEX...OVERALL SVR STORM COVERAGE APPEARS TO HAVE
DIMINISHED SOMEWHAT OVER THE PAST FEW HOURS. DESPITE THIS
TREND...FORCED ASCENT WITH THE MESOLOW...AND ALONG THE WARM
FRONT...WILL CONTINUE TO ACT ON A WEAKLY UNSTABLE AIRMASS WITH AN
INCREASING CHANCE THAT PARCELS BECOME SURFACE-BASED THIS AFTERNOON.
MORE THAN ADEQUATE SHEAR AND FORCING SHOULD PERSIST WITH THE
MESOSLOW AS IT SPREADS EAST TO SUPPORT EPISODES OF OCCASIONAL STORM
INTENSIFICATION AND A CHANCE FOR DAMAGING WINDS AND A TORNADO OR
TWO.
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
400. MEAN STORM MOTION VECTOR 24040.
...CARBIN
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 29 TORNADO AL FL MS CW 181750Z - 182300Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
40SSW PNS/PENSACOLA FL/ - 55NNW PNS/PENSACOLA FL/
..AVIATION COORDS.. 60NM E/W /66SW CEW - 49WNW CEW/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 24040.
LAT...LON 29938859 31208872 31208634 29938626
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 29 Status Report Messages:
STATUS REPORT #3 ON WW 29
VALID 182140Z - 182240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..HURLBUT..02/18/12
ATTN...WFO...MOB...
&&
STATUS REPORT FOR WT 29
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC003-039-053-097-182240-
AL
. ALABAMA COUNTIES INCLUDED ARE
BALDWIN COVINGTON ESCAMBIA
MOBILE
$$
FLC033-091-113-182240-
FL
. FLORIDA COUNTIES INCLUDED ARE
ESCAMBIA OKALOOSA SANTA ROSA
$$
MSC039-131-182240-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
GEORGE STONE
$$
GMZ630-650-655-182240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MOBILE BAY
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM
$$
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.
$$
STATUS REPORT #2 ON WW 29
VALID 182035Z - 182140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 128
..HURLBUT..02/18/12
ATTN...WFO...MOB...
&&
STATUS REPORT FOR WT 29
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC003-039-053-097-182140-
AL
. ALABAMA COUNTIES INCLUDED ARE
BALDWIN COVINGTON ESCAMBIA
MOBILE
$$
FLC033-091-113-182140-
FL
. FLORIDA COUNTIES INCLUDED ARE
ESCAMBIA OKALOOSA SANTA ROSA
$$
MSC039-131-182140-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
GEORGE STONE
$$
GMZ630-650-655-182140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MOBILE BAY
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM
COASTAL WATERS FROM DESTIN TO PENSACOLA 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 29
VALID 181940Z - 182040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..HURLBUT..02/18/12
ATTN...WFO...MOB...
&&
STATUS REPORT FOR WT 29
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC003-039-053-097-182040-
AL
. ALABAMA COUNTIES INCLUDED ARE
BALDWIN COVINGTON ESCAMBIA
MOBILE
$$
FLC033-091-113-182040-
FL
. FLORIDA COUNTIES INCLUDED ARE
ESCAMBIA OKALOOSA SANTA ROSA
$$
MSC039-131-182040-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
GEORGE STONE
$$
GMZ630-650-655-182040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MOBILE BAY
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM
$$
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
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (10%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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.