SWOD48
SPC AC 100826
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0326 AM CDT SAT APR 10 2010
VALID 131200Z - 181200Z
...DISCUSSION...
BOTH THE GFS AND ECMWF CONTINUE TO SUGGEST A SIGNIFICANT SHORTWAVE
TROUGH WILL EJECT ACROSS THE NRN PLAINS DURING THE DAY4-5 TIME FRAME
BEFORE EASING INTO SRN CANADA AND CLOSING OFF. TIMING OF THIS
FEATURE IS NOT HANDLED PARTICULARLY WELL...AS TO BE EXPECTED...WITH
GFS CONSIDERABLY FASTER THAN THE ECMWF. IN AN OTHERWISE
MOIST/UNSTABLE ENVIRONMENT THIS SHORTWAVE WOULD CERTAINLY POSE A
SEVERE RISK. HOWEVER...SUBSIDENT TRAJECTORIES OFF THE GULF OF
MEXICO ARE NOT PARTICULARLY CONDUCIVE FOR TRANSPORTING MARITIME
AIRMASS INTO TX AND POINTS NORTH. FOR THIS REASON INSTABILITY AND
SEVERE WILL LIKELY BE NEGATED CONSIDERABLY ACROSS THE PLAINS.
..DARROW.. 04/10/2010
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