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The expiration time in the watch graphic is amended if the watch is
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 139
NWS STORM PREDICTION CENTER NORMAN OK
340 PM CDT FRI APR 26 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND CENTRAL OKLAHOMA
* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 340 PM UNTIL
1100 PM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
A FEW TORNADOES POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH
SOUTHWEST OF GAGE OKLAHOMA TO 20 MILES SOUTH OF CHANDLER
OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS AFTERNOON
OVER NORTHWEST OK AHEAD OF AN APPROACHING UPPER SHORTWAVE TROUGH.
THESE STORMS WILL BECOME MORE NUMEROUS AND TRACK EAST-SOUTHEASTWARD
INTO CENTRAL OK THIS EVENING. SUPERCELLS CAPABLE OF LARGE HAIL
APPEAR TO BE THE PRIMARY THREAT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 29035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 139 SEVERE TSTM OK 262040Z - 270400Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
25SSW GAG/GAGE OK/ - 20S CQB/CHANDLER OK/
..AVIATION COORDS.. 45NM N/S /82SE LBL - 39E OKC/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 29035.
LAT...LON 36689994 36159681 34709681 35229994
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 139 Status Report Messages:
STATUS REPORT #6 ON WW 139
VALID 270340Z - 270440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NW FSI TO
20 NNW CHK TO 30 E CQB.
IT IS POSSIBLE THAT A LOCAL EXTENSION IN TIME COULD BE REQUIRED FOR
SOME COUNTIES CURRENTLY IN THE WATCH. OTHERWISE...REMAINING
PORTIONS OF WW 139 MAY BE ALLOWED TO EXPIRE AT 0400Z.
..ROGERS..04/27/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-109-270440-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO OKLAHOMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 139
VALID 270230Z - 270340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE CSM TO
30 NNW OKC TO 30 NE CQB.
..ROGERS..04/27/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-017-027-049-051-081-083-087-109-119-125-270340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO CANADIAN CLEVELAND
GARVIN GRADY LINCOLN
LOGAN MCCLAIN OKLAHOMA
PAYNE POTTAWATOMIE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 139
VALID 270135Z - 270240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SW CSM TO
40 WSW END TO 25 SSW PNC.
..ROGERS..04/27/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC011-015-017-027-049-051-073-081-083-087-109-119-125-149-
270240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BLAINE CADDO CANADIAN
CLEVELAND GARVIN GRADY
KINGFISHER LINCOLN LOGAN
MCCLAIN OKLAHOMA PAYNE
POTTAWATOMIE WASHITA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 139
VALID 270045Z - 270140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 W CSM TO
10 NNE END.
..ROGERS..04/27/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-011-015-017-027-039-043-049-051-073-081-083-087-109-119-
125-149-270140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM BLAINE CADDO
CANADIAN CLEVELAND CUSTER
DEWEY GARVIN GRADY
KINGFISHER LINCOLN LOGAN
MCCLAIN OKLAHOMA PAYNE
POTTAWATOMIE WASHITA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 139
VALID 262330Z - 270040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSW GAG
TO 15 SSW AVK.
..ROGERS..04/26/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-011-015-017-027-039-043-049-051-073-081-083-087-093-109-
119-125-129-149-270040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM BLAINE CADDO
CANADIAN CLEVELAND CUSTER
DEWEY GARVIN GRADY
KINGFISHER LINCOLN LOGAN
MCCLAIN MAJOR OKLAHOMA
PAYNE POTTAWATOMIE ROGER MILLS
WASHITA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 139
VALID 262235Z - 262340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..ROGERS..04/26/13
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 139
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-011-015-017-027-039-043-045-049-051-073-081-083-087-093-
109-119-125-129-149-153-262340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM BLAINE CADDO
CANADIAN CLEVELAND CUSTER
DEWEY ELLIS GARVIN
GRADY KINGFISHER LINCOLN
LOGAN MCCLAIN MAJOR
OKLAHOMA PAYNE POTTAWATOMIE
ROGER MILLS WASHITA 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 (20%)
|
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 (10%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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 
@NWSSPC
