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MESOSCALE DISCUSSION 1214
NWS STORM PREDICTION CENTER NORMAN OK
0354 PM CDT THU JUN 18 2009
AREAS AFFECTED...PORTIONS OF WRN INTO CNTRL KS
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 182054Z - 182230Z
THE THREAT FOR SEVERE STORMS CAPABLE OF DAMAGING WINDS AND HAIL IS
EXPECTED TO INCREASE LATE THIS AFTERNOON INTO EVENING. CONVECTIVE
TRENDS ARE BEING MONITORED FOR A POSSIBLE WW.
TSTMS ARE ATTEMPTING TO BECOME SUSTAINED S OF GCK /HASKELL COUNTY/
AS OF 2045Z WITHIN A HOT AND RELATIVELY MOIST BOUNDARY LAYER WITH
MLCAPE OF 1500-2000 J/KG. THIS ACTIVITY APPEARS TO BE ASSOCIATED
WITH A WEAK MIDLEVEL IMPULSE LIFTING NNEWD FROM THE SRN INTO CNTRL
HIGH PLAINS. CURRENT HAVILAND KS PROFILER INDICATES A NOTABLE
STRENGTHENING TO WIND FIELDS ABOVE 5 KM AGL WHICH IS LIKELY
ASSOCIATED WITH ABOVE-MENTIONED IMPULSE. RESULTANT DEEP-LAYER SHEAR
HAS INCREASED TO 35-40 KT WHICH MAY SUPPORT SOME STORM ORGANIZATION.
DAMAGING WIND GUSTS APPEAR TO BE THE PRIMARY SEVERE WEATHER
THREAT...ESPECIALLY SHOULD A CLUSTER OF STORMS DEVELOP. SOME HAIL
WILL ALSO BE POSSIBLE WITH ANY STRONGER UPDRAFTS.
..MEAD.. 06/18/2009
ATTN...WFO...TOP...ICT...GID...DDC...GLD...
LAT...LON 37160110 37770078 39019972 39769899 39989839 39609791
38629824 37619886 37129953 37000033 37160110
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