SWOMCD
SPC MCD 160018
NEZ000-SDZ000-160115-
MESOSCALE DISCUSSION 1788
NWS STORM PREDICTION CENTER NORMAN OK
0718 PM CDT TUE JUL 15 2008
AREAS AFFECTED...NEBRASKA
CONCERNING...SEVERE THUNDERSTORM WATCH 692...
VALID 160018Z - 160115Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 692
CONTINUES.
STRONG CONVECTION THAT INITIATED OVER HOLT/ANTELOPE/WHEELER COUNTIES
HAS FINALLY DEVELOPED A SUBSTANTIAL COLD POOL THAT IS NOW DRIVING
MCS SEWD TOWARD OLU. THIS ACTIVITY WILL LIKELY CONTINUE ACROSS SERN
PORTIONS OF WW AS 00Z SOUNDING FROM OAX IS QUITE BUOYANT AND
UNCAPPED WITH MLCAPE WELL IN EXCESS OF 3000 J/KG. DAMAGING WINDS
APPEAR POSSIBLE ALONG SURGING LINE SEGMENT.
FARTHER WEST...NUMEROUS STRONG/ISOLATED SEVERE THUNDERSTORMS PERSIST
ACROSS ERN NEB PANHANDLE...SPREADING INTO WRN PORTIONS OF WW692.
THIS ACTIVITY IS THRIVING OFF OF STEEP LAPSE RATES WITHIN MOIST AND
WEAK SELY LOW LEVEL FLOW REGIME. SEVERAL STORM MERGERS ARE POSSIBLE
WHICH COULD RESULT IN ONE OR MORE LARGER SLOW-MOVING COMPLEXES OVER
THE NEXT FEW HOURS.
..DARROW.. 07/16/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FSD...OAX...GID...LBF...
42900203 42549662 40799661 41170202
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