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Mesoscale Discussion 507 |
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MESOSCALE DISCUSSION 0507
NWS STORM PREDICTION CENTER NORMAN OK
0856 PM CDT FRI APR 29 2016
AREAS AFFECTED...PORTIONS OF EASTERN TX...NORTHERN LA...SOUTHERN AR
CONCERNING...TORNADO WATCH 124...125...
VALID 300156Z - 300330Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 124...125...CONTINUES.
SUMMARY...THE POTENTIAL FOR DAMAGING WIND GUSTS...A FEW LARGE HAIL
REPORTS...AND A TORNADO OR TWO WILL LIKELY CONTINUE AFTER THE 03Z
EXPIRATION OF WATCHES 124/125. AS SUCH...A NEW WATCH WILL LIKELY BE
COORDINATED WITHIN THE NEXT HOUR.
DISCUSSION...SEVERAL CLUSTERS AND SMALL LINEAR SEGMENTS /WITH
OCCASIONAL EMBEDDED SUPERCELL STRUCTURES/ CONTINUE ACROSS WATCHES
124/125 THIS EVENING...AIDED BY CONTINUED WARM-AIR ADVECTION WITHIN
MOIST/CONFLUENT FLOW. WHILE UPSCALE GROWTH AND CELL MERGERS WILL
DECREASE THE TORNADO THREAT GRADUALLY...MOIST LOW LEVELS AND
SUFFICIENT EFFECTIVE SRH WILL MAINTAIN THE POTENTIAL FOR A TORNADO
OR TWO. THE MAIN THREAT WILL LIKELY TRANSITION TO DAMAGING WIND
GUSTS...AS CELL MERGERS AND SMALL BOWING SEGMENTS LOCALLY ENHANCE
THE STRONG-WIND POTENTIAL. AS CELLS WILL CONTINUE TO DEVELOP ALONG
THE SOUTHERN FLANKS OF THE ONGOING LINE SEGMENTS/CLUSTERS OVER THE
NEXT FEW HOURS...A NEW WATCH WILL LIKELY BE COORDINATED WITHIN THE
NEXT HOUR.
..PICCA.. 04/30/2016
ATTN...WFO...JAN...LZK...LCH...SHV...TSA...HGX...FWD...
LAT...LON 30449682 31139691 31219688 32649634 32719630 33859557
34019386 33879275 33749212 32629205 31599259 30739502
30449682
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