MESOSCALE DISCUSSION 1543
NWS STORM PREDICTION CENTER NORMAN OK
0809 PM CDT SAT JUN 28 2003
AREAS AFFECTED...CO/NE/KS
CONCERNING...SEVERE THUNDERSTORM WATCH 604...605...
VALID 290109Z - 290245Z
ALSO CONCERNING WW 603...
INTERESTING AND COMPLEX MESOANALYSIS ACROSS THE HIGH PLAINS THIS
EVENING WITH NUMEROUS CONVECTIVE OUTFLOWS MERGING ACROSS EAST CNTRL
CO AND WRN KS...STRONG STREAMLINE CONFLUENCE ALONG WEST-EAST FRONTAL
ZONE FROM NERN CO INTO NRN KS...AND STRONG PRESSURE RISES AND
EASTERLY UPSLOPE FLOW NORTH OF THE FRONT...ACROSS SWRN NEB.
POCKETS OF RESIDUAL INSTABILITY ARE LIKELY BEING TAPPED QUICKLY AS
OUTFLOW COLLISIONS GENERATE NEW/INTENSE UPDRAFTS ACROSS PORTIONS OF
LINCOLN...ELBERT...AND ERN EL PASO COUNTIES IN CO. LARGE HAIL AND
DAMAGING WIND GUSTS ARE MOST LIKELY FROM THIS ACTIVITY OVER THE NEXT
HOUR OR SO.
MEANWHILE...RING OUTFLOW FROM PERSISTENT CLUSTER OF STORMS OVER SWRN
KS WAS MOVING NWWD AT 28KT AND MAY COLLIDE WITH STRONG OUTFLOW FROM
SERN CO ACTIVITY NEAR THE WRN KS BORDER OVER THE NEXT HOUR OR SO. IT
REMAINS TO BE SEEN IF THIS CAN RESULT IN ADDITIONAL TSTM DEVELOPMENT
WITHIN STRONGLY UNSTABLE AIRMASS.
FINALLY...PERHAPS THE MOST ORGANIZED AREA OF INTENSE DEEP CONVECTION
WAS CONTINUING TO EVOLVE ACROSS NERN CO/SWRN NEB ATTM WITH A STRONG
SMALL-SCALE BOW SIGNATURE/APPENDAGE DEVELOPING SEWD AT 20KT ACROSS
PHILLIPS COUNTY IN NERN CO. LOW LEVEL STORM RELATIVE INFLOW OF 30KT
AND STRONG CONVERGENCE AND INSTABILITY AXIS AHEAD OF THIS COMPLEX
WOULD FAVOR CONTINUED SEVERE WEATHER THREAT FROM HAIL/WIND AND
POSSIBLY ISOLD TORNADOES AS THE STORMS DEVELOP ESEWD ACROSS NRN
PARTS OF WW 605.
..CARBIN.. 06/29/2003
ATTN...WFO...OUN...GID...LBF...DDC...GLD...AMA...PUB...BOU...ABQ...
35919958 36430223 36910359 38060474 39470445 40780353
40890226 40780124 40180028 38939937
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