868
FXUS62 KTBW 210006
AFDTBW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
705 PM EST FRI NOV 20 2009
FOR THE EVENING UPDATE
SKIES ARE CLEARING ACROSS THE REGION
SETTING THE STAGE FOR ANOTHER NIGHT OF LOCALLY DENSE
FOG...ESPECIALLY NORTH OF TAMPA. WEAK FRONTAL BOUNDARY ACROSS SOUTH
FLORIDA WILL GRADUALLY LIFT NORTH OVERNIGHT WITH INCREASING LOW
LEVEL MOISTURE ACROSS WEST CENTRAL FLORIDA. IDEAL LIGHT NORTHEAST
BOUNDARY LAYER FLOW WILL POOL AND CONDENSE MOISTURE AHEAD OF THE
FRONT WITH WIDESPREAD FOG DEVELOPING AFTER MIDNIGHT...WHICH WILL
BE LOCALLY DENSE LATE TONIGHT AND EARLY SATURDAY MORNING. A DENSE
FOG ADVISORY MAY BE NEEDED LATER TONIGHT. MOTORISTS ARE URGED TO
DRIVE WITH CAUTION AND USE LOW BEAM HEADLIGHTS WHEN DRIVING IN FOG.
AVIATION
DISCUSSION FOR 00Z TAFS. CONCERN FOR TONIGHT WILL
CONTINUE TO BE LIFR CONDITIONS FROM FOG AND LOW CIGS AND A
COMBINATION OF BOTH. HAVE USED THE CONDITIONS FROM LAST NIGHT AS A
GUIDE HOWEVER THE SKIES ARE CLEARER TONIGHT AND SO MORE FOG IS
EXPECTED TONIGHT. OBSERVATIONS ALREADY INDICATE SOME LIGHT FOG
DEVELOPING SO WILL HIT IT HARD IN THE FORECAST AND CONDITIONS WILL
BE WORST 11-14Z. VFR WILL RETURN AFTER THEN.
TBW WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GULF WATERS...NONE.
SHORT TERM/MARINE/FIRE WEATHER...EO
LONG TERM/AVIATION...LJ
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