Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 282
NWS STORM PREDICTION CENTER NORMAN OK
355 PM CDT SAT MAY 19 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND NORTH CENTRAL OKLAHOMA
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 355 PM UNTIL
1000 PM CDT.
HAIL TO 2 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES EAST
NORTHEAST OF ALVA OKLAHOMA TO CLINTON OKLAHOMA. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU2).
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 281...
DISCUSSION...VISIBLE IMAGERY SHOWS TCU DEVELOPING ALONG THE COLD
FRONT/DRY LINE OVER NWRN OK INTO THE EXTREME ERN TX PANHANDLE. THIS
IS A LIKELY PRECURSOR TO THUNDERSTORM INITIATION WHICH IS EXPECTED
TO OCCUR WITHIN THE NEXT 1-2 HRS. THE ENVIRONMENT IS CHARACTERIZED
BY STEEP LAPSE RATES...MODERATE INSTABILITY WITH MLCAPE OF 1500-2000
J/KG...AND A RELATIVELY DEEP WELL-MIXED PBL. THIS WILL FAVOR
PRODUCTION OF LARGE HAIL AND DAMAGING WIND GUSTS WITH STRONGER
CELLS. ACTIVITY IS EXPECTED TO MOVE GENERALLY EWD WITH TIME
ALTHOUGH SOME SEWD MOTION MAY DEVELOP IF AN ORGANIZED COLD POOL IS
ABLE TO BE GENERATED.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24020.
...WEISS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 282 SEVERE TSTM OK 192055Z - 200300Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
40ENE AVK/ALVA OK/ - CSM/CLINTON OK/
..AVIATION COORDS.. 50NM E/W /39N END - 69SSE GAG/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24020.
LAT...LON 36979691 35339813 35330026 36979908
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 282 Status Report Messages:
STATUS REPORT #5 ON WW 282
VALID 200135Z - 200240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 N CDS TO
25 ESE P28.
..ROGERS..05/20/12
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 282
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-015-017-039-043-047-053-071-073-093-103-129-149-
151-153-200240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CADDO CANADIAN CUSTER
DEWEY GARFIELD GRANT
KAY KINGFISHER MAJOR
NOBLE ROGER MILLS WASHITA
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 #4 ON WW 282
VALID 200055Z - 200140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 ESE BGD
TO 25 E GAG TO 20 ESE P28.
..ROGERS..05/20/12
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 282
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-039-043-045-047-053-071-073-093-103-129-149-151-
153-200140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT KAY
KINGFISHER MAJOR NOBLE
ROGER MILLS WASHITA 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 282
VALID 192355Z - 200040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 ESE BGD
TO 25 E GAG TO 15 SSW P28.
..ROGERS..05/19/12
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 282
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-039-043-045-047-053-071-073-093-103-129-149-151-
153-200040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT KAY
KINGFISHER MAJOR NOBLE
ROGER MILLS WASHITA 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 282
VALID 192235Z - 192340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..ROGERS..05/19/12
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 282
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-039-043-045-047-053-071-073-093-103-129-149-151-
153-192340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT KAY
KINGFISHER MAJOR NOBLE
ROGER MILLS WASHITA 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 282
VALID 192140Z - 192240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..ROGERS..05/19/12
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 282
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-039-043-045-047-053-071-073-093-103-129-149-151-
153-192240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT KAY
KINGFISHER MAJOR NOBLE
ROGER MILLS WASHITA 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 (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (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.