Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 36
NWS STORM PREDICTION CENTER NORMAN OK
500 AM EST FRI FEB 27 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTH CENTRAL KENTUCKY
MIDDLE TENNESSEE
EFFECTIVE THIS FRIDAY MORNING FROM 500 AM UNTIL 900 AM EST.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF
NASHVILLE TENNESSEE TO 55 MILES SOUTH OF NASHVILLE TENNESSEE.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
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...LINE OF THUNDERSTORMS CONTINUES TO TRACK
EAST-SOUTHEASTWARD ACROSS PARTS OF KY/TN. NUMEROUS REPORTS OF WIND
GUSTS NEAR SEVERE LIMITS HAVE BEEN RECEIVED DURING THE PAST FEW
HOURS...AND WILL LIKELY CONTINUE THROUGH DAYBREAK. WEAKENING
INSTABILITY WITH EASTWARD EXTENT SHOULD HELP THE LINE WEAKEN LATER
THIS MORNING OVER EASTERN TN.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION
VECTOR 28040.
...HART
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 36
NWS STORM PREDICTION CENTER NORMAN OK
500 AM EST FRI FEB 27 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTH CENTRAL KENTUCKY
MIDDLE TENNESSEE
EFFECTIVE THIS FRIDAY MORNING FROM 500 AM UNTIL 900 AM EST.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF
NASHVILLE TENNESSEE TO 55 MILES SOUTH OF NASHVILLE TENNESSEE.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).
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...LINE OF THUNDERSTORMS CONTINUES TO TRACK
EAST-SOUTHEASTWARD ACROSS PARTS OF KY/TN. NUMEROUS REPORTS OF WIND
GUSTS NEAR SEVERE LIMITS HAVE BEEN RECEIVED DURING THE PAST FEW
HOURS...AND WILL LIKELY CONTINUE THROUGH DAYBREAK. WEAKENING
INSTABILITY WITH EASTWARD EXTENT SHOULD HELP THE LINE WEAKEN LATER
THIS MORNING OVER EASTERN TN.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION
VECTOR 28040.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 36 SEVERE TSTM KY TN 271000Z - 271400Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
70NE BNA/NASHVILLE TN/ - 55S BNA/NASHVILLE TN/
..AVIATION COORDS.. 50NM E/W /32E BWG - 48S BNA/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 28040.
LAT...LON 36848469 35338562 35338773 36848687
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 36 Status Report Messages:
STATUS REPORT #2 ON WW 36
VALID 271150Z - 271240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSE CKV
TO 45 ESE BNA TO 50 WSW LOZ.
..SPC..02/27/09
ATTN...WFO...LMK...OHX...
&&
STATUS REPORT FOR WS 36
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TNC003-015-031-035-041-049-061-081-117-119-133-137-141-149-175-
177-185-187-271240-
TN
. TENNESSEE COUNTIES INCLUDED ARE
BEDFORD CANNON COFFEE
CUMBERLAND DEKALB FENTRESS
GRUNDY HICKMAN MARSHALL
MAURY OVERTON PICKETT
PUTNAM RUTHERFORD VAN BUREN
WARREN WHITE WILLIAMSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 36
VALID 271100Z - 271240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE CKV
TO 15 NNE BNA TO 35 ESE BWG.
..SPC..02/27/09
ATTN...WFO...LMK...OHX...
&&
STATUS REPORT FOR WS 36
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC001-053-057-169-171-207-271240-
KY
. KENTUCKY COUNTIES INCLUDED ARE
ADAIR CLINTON CUMBERLAND
METCALFE MONROE RUSSELL
$$
TNC003-015-021-027-031-035-037-041-043-049-061-081-087-111-117-
119-133-137-141-149-159-169-175-177-185-187-189-271240-
TN
. TENNESSEE COUNTIES INCLUDED ARE
BEDFORD CANNON CHEATHAM
CLAY COFFEE CUMBERLAND
DAVIDSON DEKALB DICKSON
FENTRESS GRUNDY HICKMAN
JACKSON MACON MARSHALL
MAURY OVERTON PICKETT
PUTNAM RUTHERFORD SMITH
TROUSDALE VAN BUREN WARREN
WHITE WILLIAMSON WILSON
$$
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 (10%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (10%)
|
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.
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