NWS Miami pondering forecast scenarios in the long-range, a slam-dunk easy forecast for South Florida with no rain for the next several days is not a "slam dunk" any longer:
.DISCUSSION...HIGH PRES RIDGE ALOFT OVER NEW ENGLAND...THE MID
ATLC STATES AND ATLC E OF FLA MOVES EASTWARD AS A DEEP FULL LATITUDE
TROUGH...EXTENDING S FROM THE GREAT LAKES INTO THE GULF OF MEX
...MOVES INTO THE EASTERN U.S. AS THE TROUGH DEEPENS THE SW WINDS
TURN PALOMA TOWARD THE NE AND ACROSS CENTRAL CUBA AND INTO THE S
BAHAMAS LATE THIS WEEKEND (REFER TO LATEST TRACK GUIDANCE FROM NHC).
FOR THE SHORT TERM...TONIGHT THROUGH SUN...THE SURFACE RIDGE OVER
CENTRAL FLA MOVES EAST...PUSHED BY THE COLD FRONT ASSOCIATED WITH
THE UPPER TROUGH. THE FRONT MOVES INTO N FLA OVER NIGHT...SLOWS
...STALLS AND EVENTUALLY DISSIPATES OVER CENTRAL FLA SUN. AS THE
FRONT WANES...PALOMA MOVES ACROSS CENTRAL CUBA AND INTO THE SW
N ATLC EARLY SUN.
AFFECTS FROM PALOMA THOUGH BEGIN TO BE FELT IN
S FLA BY LATE TONIGHT AND INTO EARLY SUN...BUT MAINLY OVER THE SE
PORTIONS OF THE CWA. MODELS DIFFER ON EVOLUTION OF PALOMA. NAM KEEPS
SYSTEM OVER THE CARIB...
NGM BRINGS IT CLOSER TO S FLA WHILE GFS
SIMILAR TO NHC TRACK AND WILL FOLLOW GFS. STILL HAVE PROBLEMS THOUGH
WITH GFS POPS AS THIS MODEL FOCUSES AND THE MID/HI LEVEL MOISTURE
TOO MUCH. WILL SHAVE POPS BUT MODEL PRECIPITATION PATTERN WILL BE
FOLLOWED. MAX/MIN TEMPS NEAR NORMS THROUGH THE PERIOD THOUGH SUN MAX
TEMPS A SHADE COOLER. WINDS SHIFT FROM E TONIGHT TO NE SAT THEN MORE
NORTHERLY SUN AND POSSIBLY BREEZY E AS PALOMA PASSES.
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