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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 8
NWS STORM PREDICTION CENTER NORMAN OK
1235 AM EST MON JAN 23 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN INDIANA
CENTRAL KENTUCKY
EFFECTIVE THIS MONDAY MORNING FROM 1235 AM UNTIL 500 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 55
STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH
NORTHWEST OF LOUISVILLE KENTUCKY TO 25 MILES SOUTH SOUTHEAST OF
BOWLING GREEN KENTUCKY. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
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 6...WW 7...
DISCUSSION...EXTENSIVE SQUALL LINE WILL CONTINUE TO SURGE EWD ACROSS
INDIANA AND KY OVERNIGHT...IN ADVANCE OF A STRONG SHORTWAVE TROUGH
EJECTING NEWD FROM AR/MO. THE CONVECTION APPEARS TO BE SLIGHTLY
ELEVATED AT THIS POINT...AND THE NARROW SURFACE-BASED WARM SECTOR
WILL LIKELY REMAIN PINCHED OFF FARTHER TO THE SW ACROSS WRN KY/TN.
THUS...DAMAGING WINDS WILL BE THE PRIMARY SEVERE STORM THREAT GIVEN
VERY STRONG ENVIRONMENTAL FLOW AND THE POTENTIAL FOR MOMENTUM
TRANSFER DOWN THROUGH THE SHALLOW NEAR-SURFACE STABLE LAYER.
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 450. MEAN STORM MOTION
VECTOR 25045.
...THOMPSON
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 8 SEVERE TSTM IN KY 230535Z - 231000Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
75NNW SDF/LOUISVILLE KY/ - 25SSE BWG/BOWLING GREEN KY/
..AVIATION COORDS.. 50NM E/W /38S IND - 20SSE BWG/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 25045.
LAT...LON 39188523 36638526 36638723 39188729
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 8 Status Report Messages:
STATUS REPORT #3 ON WW 8
VALID 230835Z - 230940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE BWG TO
35 SE SDF.
..SMITH..01/23/12
ATTN...WFO...IND...LMK...
&&
STATUS REPORT FOR WS 8
SEVERE WEATHER THREAT HAS ENDED WITH PASSAGE OF THE SQUALL LINE.
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 8
VALID 230740Z - 230840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SW BWG TO
10 SSW SDF TO 50 SE IND.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 54
..SMITH..01/23/12
ATTN...WFO...IND...LMK...
&&
STATUS REPORT FOR WS 8
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC019-077-079-143-230840-
IN
. INDIANA COUNTIES INCLUDED ARE
CLARK JEFFERSON JENNINGS
SCOTT
$$
KYC003-009-029-061-093-099-103-111-123-179-185-211-213-215-223-
227-230840-
KY
. KENTUCKY COUNTIES INCLUDED ARE
ALLEN BARREN BULLITT
EDMONSON HARDIN HART
HENRY JEFFERSON LARUE
NELSON OLDHAM SHELBY
SIMPSON SPENCER TRIMBLE
WARREN
$$
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.
$$
STATUS REPORT #1 ON WW 8
VALID 230620Z - 230740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 SW HOP TO
25 SSE OWB TO 30 NNE OWB TO 25 S BMG TO 15 WNW BMG.
..EDWARDS..01/23/12
ATTN...WFO...IND...LMK...
&&
STATUS REPORT FOR WS 8
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC005-013-019-025-037-043-061-071-077-079-093-101-105-117-119-
123-143-175-230740-
IN
. INDIANA COUNTIES INCLUDED ARE
BARTHOLOMEW BROWN CLARK
CRAWFORD DUBOIS FLOYD
HARRISON JACKSON JEFFERSON
JENNINGS LAWRENCE MARTIN
MONROE ORANGE OWEN
PERRY SCOTT WASHINGTON
$$
KYC003-009-027-029-031-061-085-091-093-099-103-111-123-141-163-
179-183-185-211-213-215-223-227-230740-
KY
. KENTUCKY COUNTIES INCLUDED ARE
ALLEN BARREN BRECKINRIDGE
BULLITT BUTLER EDMONSON
GRAYSON HANCOCK HARDIN
HART HENRY JEFFERSON
LARUE LOGAN MEADE
NELSON OHIO OLDHAM
SHELBY SIMPSON SPENCER
TRIMBLE WARREN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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
|
Low (20%)
|
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 
