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Mesoscale Discussion 1479 |
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MESOSCALE DISCUSSION 1479
NWS STORM PREDICTION CENTER NORMAN OK
0505 AM CDT SUN JUL 19 2015
AREAS AFFECTED...N-CNTRL/NERN KS
CONCERNING...SEVERE THUNDERSTORM WATCH 441...
VALID 191005Z - 191130Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 441
CONTINUES.
SUMMARY...STRONG TO LOCALLY SEVERE WIND GUSTS WILL REMAIN POSSIBLE
FOR A FEW MORE HOURS WITH AN EWD-MOVING CLUSTER OVER N-CNTRL KS.
DOWNSTREAM WW ISSUANCE IS NOT EXPECTED UNLESS ORGANIZATION
STRENGTHENS.
DISCUSSION...OVERALL ORGANIZATIONAL TRENDS HAVE DIMINISHED SINCE
DISSIPATION OF THE BOOKEND VORTEX RESPONSIBLE FOR SEVERE WIND GUSTS
A COUPLE HOURS AGO AROUND KHLC. MORE RECENTLY...REFLECTIVITY
GRADIENTS HAVE ALSO RELAXED...BUT SOME ACCELERATION OF THE CLUSTER
HAS OCCURRED WITH FORWARD SPEED NOW AROUND 35 KT. WITH MEASURED WIND
GUSTS AT K9K7 /50 KT/ AND KRSL /45 KT/ DURING THE PAST HOUR...A
SUFFICIENT COLD POOL PUSH SHOULD EXIST FOR A MARGINALLY SEVERE
THREAT THROUGH AT LEAST 12Z AS THE CLUSTER LIKELY PROGRESSES ALONG
THE WEAK FRONTAL ZONE DRAPED ACROSS NERN KS.
..GRAMS.. 07/19/2015
ATTN...WFO...TOP...ICT...GID...
LAT...LON 39729842 39869805 39919714 39909651 39729603 39449592
39179615 38999668 38909737 39069786 39439815 39729842
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