Friday, April 10, 2009

PDS Tornado Watch, North Alabama


URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 132
NWS STORM PREDICTION CENTER NORMAN OK
1125 AM CDT FRI APR 10 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

NORTHERN ALABAMA
NORTHWEST GEORGIA
MIDDLE AND PARTS OF EASTERN TENNESSEE

EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1125 AM UNTIL 700
PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 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 NORTH OF CROSSVILLE
TENNESSEE TO 55 MILES EAST OF COLUMBUS MISSISSIPPI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 131...

DISCUSSION...LINE OF INTENSE SUPERCELLS EXPECTED TO CONTINUE TO
DEVELOP EWD ACROSS TN VLY AREA AND INTO NRN MIDDLE AND PARTS OF ERN
TN THROUGH THE AFTERNOON. AIRMASS AHEAD OF THIS LINE IS MODESTLY
UNSTABLE WITH MLCAPE VALUES INCREASING TO OVER 1500 J/KG ACROSS THE
TN VLY ATTM. GIVEN LITTLE CONVECTIVE INHIBITION AND MODEST TO STRONG
ASCENT WITHIN/BENEATH LEFT EXIST REGION OF 80KT MID LEVEL JET
STREAK...EXPECT STORMS TO CONTINUE TO MAINTAIN SEVERE INTENSITY
THROUGH THE AFTERNOON. OF PARTICULAR CONCERN IS MAGNITUDE OF
VERTICAL SHEAR...ESPECIALLY ACROSS NRN AL/SRN MIDDLE TN THIS
AFTERNOON. FCST HODOGRAPHS IN THIS CORRIDOR SUGGEST HIGH POSSIBILITY
OF A STRONG TORNADO IF DISCRETE CELLS CAN MOVE INTO THIS AREA AS
ANTICIPATED. FARTHER NORTH...ACROSS MIDDLE TN...TORNADO THREAT WILL
ALSO BE ENHANCED NEAR LINE/RETREATING WARM FRONTAL BOUNDARY NEXT FEW
HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 26045.


...CARBIN

Hazard
Tornadoes
EF2+ Tornadoes
Likelihood
High
Moderate
Severe Wind
65 kt+ Wind
High
Moderate
Severe Hail
2"+ Hail
Moderate
Moderate
Note: Click for
Watch Status Reports.
WOUS64 KWNS 101621
WOU2

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH OUTLINE UPDATE FOR WT 132
NWS STORM PREDICTION CENTER NORMAN OK
1125 AM CDT FRI APR 10 2009

TORNADO WATCH 132 IS IN EFFECT UNTIL 700 PM CDT FOR THE
FOLLOWING LOCATIONS

ALC009-033-043-049-057-059-071-075-077-079-083-089-093-095-103-
127-133-110000-
/O.NEW.KWNS.TO.A.0132.090410T1625Z-090411T0000Z/

AL
. ALABAMA COUNTIES INCLUDED ARE

BLOUNT COLBERT CULLMAN
DEKALB FAYETTE FRANKLIN
JACKSON LAMAR LAUDERDALE
LAWRENCE LIMESTONE MADISON
MARION MARSHALL MORGAN
WALKER WINSTON


GAC047-055-083-295-313-110000-
/O.NEW.KWNS.TO.A.0132.090410T1625Z-090411T0000Z/

GA
. GEORGIA COUNTIES INCLUDED ARE

CATOOSA CHATTOOGA DADE
WALKER WHITFIELD


TNC001-003-007-011-013-015-027-031-035-037-041-049-051-055-061-
065-087-093-099-103-105-107-111-115-117-119-121-127-129-133-137-
141-143-145-149-151-153-159-165-169-175-177-185-187-189-
110000-
/O.NEW.KWNS.TO.A.0132.090410T1625Z-090411T0000Z/

TN
. TENNESSEE COUNTIES INCLUDED ARE

ANDERSON BEDFORD BLEDSOE
BRADLEY CAMPBELL CANNON
CLAY COFFEE CUMBERLAND
DAVIDSON DEKALB FENTRESS
FRANKLIN GILES GRUNDY
HAMILTON JACKSON KNOX
LAWRENCE LINCOLN LOUDON
MACON MARION MARSHALL
MAURY MCMINN MEIGS
MOORE MORGAN OVERTON
PICKETT PUTNAM RHEA
ROANE RUTHERFORD SCOTT
SEQUATCHIE SMITH SUMNER
TROUSDALE VAN BUREN WARREN
WHITE WILLIAMSON WILSON


ATTN...WFO...BMX...OHX...MRX...HUN...FFC...




Hazard
Tornadoes
EF2+ Tornadoes
Likelihood
High
Moderate
Severe Wind
65 kt+ Wind
High
Moderate
Severe Hail
2"+ Hail
Moderate
Moderate
Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW2
WW 132 TORNADO AL GA TN 101625Z - 110000Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
40N CSV/CROSSVILLE TN/ - 55E CBM/COLUMBUS MS/
..AVIATION COORDS.. 60NM E/W /55WSW LOZ - 30W VUZ/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26045.

LAT...LON 36528381 33618627 33618870 36528633

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.

Watch 132 Status Report Message has not been issued yet.

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