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.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 376
NWS STORM PREDICTION CENTER NORMAN OK
1220 PM EDT THU JUN 11 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN GEORGIA
SOUTHEASTERN KENTUCKY
WESTERN NORTH CAROLINA
WESTERN SOUTH CAROLINA
EASTERN TENNESSEE
WESTERN VIRGINIA
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1220 PM UNTIL
800 PM EDT.
HAIL TO 1.5 INCHES 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 85
STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES WEST
NORTHWEST OF BRISTOL TENNESSEE TO 35 MILES WEST OF ATHENS
GEORGIA. 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.
OTHER WATCH INFORMATION...CONTINUE...WW 374...WW 375...
DISCUSSION...BOWING MCS OVER MIDDLE TN INTO NERN AL SHOULD CONTINUE
TO INTENSIFY TODAY WHILE PROGRESSING EWD THROUGH A MOIST AND
MODERATELY UNSTABLE AIR MASS WITH MLCAPE OF 1500-2500 J/KG. DEEP
WLY FLOW SHOULD CONTINUE TO PROMOTE FORWARD-PROPAGATION OF SYSTEM
WITH THE THREAT FOR DAMAGING WINDS AND HAIL.
AVIATION...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 500. MEAN STORM
MOTION VECTOR 27035.
...MEAD/THOMPSON
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 376 SEVERE TSTM GA KY NC SC TN VA 111620Z - 120000Z
AXIS..85 STATUTE MILES EAST AND WEST OF LINE..
50WNW TRI/BRISTOL TN/ - 35W AHN/ATHENS GA/
..AVIATION COORDS.. 75NM E/W /46ESE LOZ - 31NE ATL/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 36728169 33938245 33938541 36728476
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 376 Status Report Messages:
STATUS REPORT #2 ON WW 376
VALID 112225Z - 120000Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSW RMG
TO 25 E AHN.
WW 376 IS SCHEDULED TO EXPIRE AT 120000Z.
..GRAMS..06/11/09
ATTN...WFO...FFC...GSP...JKL...MRX...
&&
STATUS REPORT FOR WS 376
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC045-067-089-097-121-135-143-223-233-120000-
GA
. GEORGIA COUNTIES INCLUDED ARE
CARROLL COBB DEKALB
DOUGLAS FULTON GWINNETT
HARALSON PAULDING POLK
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 376
VALID 112025Z - 112140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SW RMG TO
30 W AHN TO 35 E HSS TO 30 NW TRI.
..SMITH..06/11/09
ATTN...WFO...FFC...GSP...JKL...MRX...
&&
STATUS REPORT FOR WS 376
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
GAC013-045-059-067-089-097-105-119-121-135-143-147-157-195-219-
221-223-233-257-317-112140-
GA
. GEORGIA COUNTIES INCLUDED ARE
BARROW CARROLL CLARKE
COBB DEKALB DOUGLAS
ELBERT FRANKLIN FULTON
GWINNETT HARALSON HART
JACKSON MADISON OCONEE
OGLETHORPE PAULDING POLK
STEPHENS WILKES
$$
KYC133-112140-
KY
. KENTUCKY COUNTIES INCLUDED ARE
LETCHER
$$
NCC011-023-089-111-121-149-161-175-112140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
AVERY BURKE HENDERSON
MCDOWELL MITCHELL POLK
RUTHERFORD TRANSYLVANIA
$$
SCC001-007-045-047-059-073-077-083-112140-
SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE
ABBEVILLE ANDERSON GREENVILLE
GREENWOOD LAURENS OCONEE
PICKENS SPARTANBURG
$$
TNC019-091-163-179-112140-
TN
. TENNESSEE COUNTIES INCLUDED ARE
CARTER JOHNSON SULLIVAN
WASHINGTON
$$
VAC167-169-191-195-520-720-112140-
VA
. VIRGINIA COUNTIES INCLUDED ARE
RUSSELL SCOTT WASHINGTON
WISE
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
BRISTOL NORTON
$$
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 (5%)
|
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
|
Mod (30%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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 
