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000
WWUS20 KWNS 191920
SEL2
SPC WW 191920
OKZ000-200400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 182
NWS STORM PREDICTION CENTER NORMAN OK
215 PM CDT SUN MAY 19 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF
  CENTRAL AND EASTERN OKLAHOMA

* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
  1100 PM CDT.

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES LIKELY WITH A FEW INTENSE TORNADOES POSSIBLE
  NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
    EVENTS TO 3 INCHES IN DIAMETER POSSIBLE
  SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 80
    MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHEAST OF
BARTLESVILLE OKLAHOMA TO 25 MILES SOUTH OF ARDMORE OKLAHOMA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 179...WW 180...WW 181...

DISCUSSION...THE INITIATION OF DISCRETE SUPERCELLS APPEARS LIKELY
ALONG THE DRYLINE ACROSS CENTRAL OKLAHOMA DURING THE NEXT FEW
HOURS...BEFORE ADVECTING AWAY FROM THE DRYLINE ON 40-50 KT DEEP
LAYER SOUTHWESTERLY MEAN FLOW.  AS ACTIVITY PROGRESSES THROUGH A
MOIST UNSTABLE BOUNDARY LAYER WITH SIZABLE CAPE...THE RISK FOR VERY
LARGE HAIL AND TORNADOES IS EXPECTED TO INCREASE THROUGH THE EVENING
HOURS.  BY EARLY EVENING...A STRENGTHENING SOUTHERLY LOW-LEVEL JET
WILL CONTINUE TO ENLARGE LOW-LEVEL HODOGRAPHS...MAINTAINING THE RISK
FOR TORNADOES ACROSS EASTERN OKLAHOMA.  A COUPLE OF LONG-LIVED/LONG
TRACK SUPERCELLS ARE POSSIBLE...WITH A RISK FOR A FEW STRONG
TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25040.


...KERR