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Short Term Discussion

By: NWS
By: NWS

(TONIGHT THROUGH WEDNESDAY NIGHT)...S/CNTRL PLAINS UPPER LOW IS PROGGED TO DRIFT EWD TOWARD THE MID MS VALLEY THROUGH TUESDAY AFTERNOON THEN LIFT SLOWLY NWD TOWARD THE UPPER MS VALLEY BY THE END OF THE PERIOD. MEANWHILE...AN ERN PACIFIC TROUGH WILL MOVE ONSHORE AND SLOWLY WEAKEN AS IT ENTERS THE INTERMTN WEST. THE RIDGE AXIS FROM THE FL PENINSULA NEWD SLIPS TO THE SE WITH INCREASING SWLY FLOW ALOFT OVER THE CWA. THE COLD FRONT TO THE WEST WILL WEAKEN AS IT SLOWLY MOVES EWD TONIGHT...REACHING OUR WRN ZONES AFTER 12Z TUESDAY AND ERN ZONES AFTER 12Z WEDNESDAY. TRENDED TOWARD THE SLIGHTLY DRIER MAVMOS WITH POPS CAPPED AT 20 PERCENT FOR RAIN (BEGINNING IN THE WRN ZONES OVERNIGHT...SPREADING EWD TUESDAY AND TUESDAY NIGHT...AND ENDING ERN ZONES WEDNESDAY MORNING). A WEAK LOW IS THEN PROGGED TO FORM OVER SERN GA BY WEDNESDAY MORNING BEFORE FILLING WEDNESDAY NIGHT AS SURFACE HIGH PRESSURE OVER THE LOWER MS VALLEY BUILDS EWD. THE AIR MASS BEHIND THE FRONT IS PACIFIC ORIGIN...SO HIGH TEMPS ON WEDNESDAY WILL BE SIMILAR TO TUESDAY`S HIGHS. LOWS DURING THE PERIOD WILL BE NEAR TO SLIGHTLY ABOVE NORMAL.


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