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WW 341 AR/OK/TX
Posted: Sun May 30, 2004 6:31 pm
by USAwx1
836
WWUS30 KWNS 302310
SAW1
SPC AWW 302310
WW 341 TORNADO AR OK TX 302310Z - 310400Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
30ENE HRO/HARRISON AR/ - 45ESE ACT/WACO TX/
..AVIATION COORDS.. 65NM E/W /64SSE SGF - 42ESE ACT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 600. MEAN STORM MOTION VECTOR 24030.
REPLACES WW 330..AR KS MO OK
REPLACES WW 333..AR OK TX
Posted: Sun May 30, 2004 6:32 pm
by USAwx1
Public....
S20 KWNS 302313
SEL1
SPC WW 302310
ARZ000-OKZ000-TXZ000-310400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 341
NWS STORM PREDICTION CENTER NORMAN OK
610 PM CDT SUN MAY 30 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WESTERN ARKANSAS
FAR SOUTHEAST OKLAHOMA
NORTHEAST AND PART OF CENTRAL TEXAS
EFFECTIVE THIS SUNDAY EVENING FROM 610 PM UNTIL 1100 PM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES EAST NORTHEAST OF HARRISON ARKANSAS TO 45
MILES EAST SOUTHEAST OF WACO TEXAS.
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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 330...TORNADO WATCH NUMBER 333. WATCH NUMBER 330 333
WILL NOT BE IN EFFECT AFTER 610 PM CDT. CONTINUE...WW 331...WW
332...WW 334...WW 335...WW 336...WW 337...WW 338...WW 339...WW
340...
DISCUSSION...COLD FRONT AND PRE-FRONTAL TROUGH CONTINUE TO IGNITE
STRONG TO SEVERE THUNDERSTORMS FROM NRN/WRN AR INTO CENTRAL TX. A
VERY WARM/MOIST BOUNDARY WITHIN THE WARM SECTOR IS SUPPORTING A VERY
UNSTABLE AIR MASS UNDER 40-50 KT OF SWLY MID LEVEL FLOW. DEEP LAYER
SHEAR WILL REMAIN SUPPORTIVE OF SUPERCELLS...WITH ATTENDANT THREAT
OF ISOLATED TORNADOES.
AVIATION...TORNADOES AND 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 600.
MEAN STORM MOTION VECTOR 24030.
...EVANS
;362,0911 312,0951 312,0974 362,0940;
Posted: Sun May 30, 2004 6:33 pm
by USAwx1
Posted: Sun May 30, 2004 6:34 pm
by Matthew5
Wow its spreading into Texas
Posted: Sun May 30, 2004 6:37 pm
by USAwx1
yep increasig into texas along the southern end of the cold front and also noticed per latest radar trends, convective initiation taking place along the dry line.
Posted: Sun May 30, 2004 6:38 pm
by wx247
More of a squall line event for Texas... best shear parameters for tornadoes are farther north and east.
Posted: Sun May 30, 2004 6:45 pm
by USAwx1
0-6 KM vetical shear is still pretty impressive over northern TX in the 35-50 KT range which does favor supercells, ad low level shear isnt all that bad either especially over the eastern part of the state w/ lowest 1 KM shear > 15 KT
Instability is great also w/ 100mb mean layer CAPE of up to 3500J and Li's as low as -10.
