Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 623
NWS STORM PREDICTION CENTER NORMAN OK
400 PM CDT WED SEP 5 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
FAR SOUTHERN KANSAS
NORTHERN AND WESTERN OKLAHOMA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
1100 PM CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHWEST OF
ALVA OKLAHOMA TO 55 MILES SOUTH SOUTHEAST OF GAGE OKLAHOMA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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 620...WW 621...WW 622...
DISCUSSION...TSTMS NOW FORMING JUST BEHIND WSW-ENE COLD FRONT IN SW
KS EXPECTED TO STRENGTHEN AND MOVE/DEVELOP GENERALLY ESE OVER THE
NEXT FEW HOURS. ADDITIONAL STORMS MAY MOVE INTO WRN OK FROM ERN
PORTIONS OF THE TX PANHANDLE. DEEPLY-MIXED ENVIRONMENT AND ASCENT
WITH WEAK IMPULSE IN SRN EDGE OF THE WLYS OVER CO SHOULD AUGMENT
RISK FOR SVR WIND AND POSSIBLY HAIL AS STORMS ORGANIZE INTO A
CLUSTER.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29025.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 623 SEVERE TSTM KS OK 052100Z - 060400Z
AXIS..90 STATUTE MILES EAST AND WEST OF LINE..
60NW AVK/ALVA OK/ - 55SSE GAG/GAGE OK/
..AVIATION COORDS.. 80NM E/W /66NNE GAG - 53SSE GAG/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29025.
LAT...LON 37369780 35549779 35540100 37360108
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 623 Status Report Messages:
STATUS REPORT #4 ON WW 623
VALID 060130Z - 060240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE BGD TO
35 NE GAG TO 15 NE AVK TO 40 WNW PNC.
..LEITMAN..09/06/12
ATTN...WFO...DDC...OUN...
&&
STATUS REPORT FOR WS 623
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-039-043-045-047-053-073-093-129-151-153-060240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CUSTER
DEWEY ELLIS GARFIELD
GRANT KINGFISHER MAJOR
ROGER MILLS WOODS WOODWARD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 623
VALID 060040Z - 060140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE BGD
TO 15 NNW AVK TO 40 WNW PNC.
..LEITMAN..09/06/12
ATTN...WFO...DDC...OUN...
&&
STATUS REPORT FOR WS 623
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-039-043-045-047-053-073-093-129-151-153-060140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CUSTER
DEWEY ELLIS GARFIELD
GRANT KINGFISHER MAJOR
ROGER MILLS WOODS WOODWARD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 623
VALID 052330Z - 060040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 WSW LBL TO
45 WNW PNC.
..LEITMAN..09/05/12
ATTN...WFO...DDC...OUN...
&&
STATUS REPORT FOR WS 623
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-039-043-045-047-053-059-073-093-129-151-153-060040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CUSTER
DEWEY ELLIS GARFIELD
GRANT HARPER KINGFISHER
MAJOR ROGER MILLS WOODS
WOODWARD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 623
VALID 052235Z - 052340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LEITMAN..09/05/12
ATTN...WFO...DDC...OUN...
&&
STATUS REPORT FOR WS 623
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC007-025-033-119-052340-
KS
. KANSAS COUNTIES INCLUDED ARE
BARBER CLARK COMANCHE
MEADE
$$
OKC003-011-039-043-045-047-053-059-073-093-129-151-153-052340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CUSTER
DEWEY ELLIS GARFIELD
GRANT HARPER KINGFISHER
MAJOR ROGER MILLS WOODS
WOODWARD
$$
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 (<5%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
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 (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.