Sunday through Wednesday

By: NWS

Posted: Fri 10:47 PM, Jun 05, 2009

BOTH THE 00Z GFS AND GEM MODELS INDICATE A PERSISTENT WEAKNESS IN THE MID LEVELS THROUGH AT LEAST THE MIDDLE OF NEXT WEEK. IT IS NOT UNTIL THE END OF THE WEEK WHEN THE RIDGE TO THE WEST BUILDS EAST ACROSS THE GULF COAST STATES. AFTER THE DEMISE OF THE BOUNDARY OVER THE REGION LATE IN THE WEEKEND...THE SURFACE PRESSURE PATTERN WILL REMAIN WEAK...WITH NO SYNOPTIC SCALE FEATURES TO FOCUS CONVECTION. THE PRIMARY LIFTING MECHANISM FOR CONVECTION WILL BE THE DIURNAL SEA BREEZES WITH CLIMO POPS (30 PERCENT DAYTIME/20 PERCENT NIGHTTIME). TEMPERATURES WILL START THE EXTENDED PERIOD NEAR CLIMO...AND FINISH SLIGHTLY ABOVE CLIMO DUE TO THE INFLUENCE OF THE EXPANDING RIDGE AND RISING HEIGHTS.

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