923
FXUS62 KMLB 201923
AFDMLB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
223 PM EST WED NOV 20 2024
..NEW KEY MESSAGES, DISCUSSION, MARINE
KEY MESSAGES
ISSUED AT 222 PM EST WED NOV 20 2024
- HIGH RISK OF RIP CURRENTS WITH ROUGH SURF TODAY
- RAIN CHANCES DIMINISHING THROUGH THE AFTERNOON
- COOLER AND DRIER AIR IS FORECAST LATE WEEK BEHIND THE FRONT WITH
TEMPERATURES DROPPING TO THE 40S.
- HAZARDOUS CONDITIONS OVER THE LOCAL ATLANTIC WATERS AND
SENSITIVE FIRE WEATHER CONDITIONS ARE EXPECTED LATE WEEK INTO
AND INTO THE WEEKEND
DISCUSSION
ISSUED AT 222 PM EST WED NOV 20 2024
CURRENT-TONIGHT...MID-LEVEL DRY AIR HAS BEEN A MAJOR LIMITING FACTOR
OF PRECIP COVERAGE TODAY, WITH A FEW PASSING SHOWERS IMPACTING ONLY
A PORTION OF EAST CENTRAL FL THIS AFTERNOON. A BULK OF THE MOISTURE
PASSED NEAR LAKE OKEECHOBEE, AND WILL IMPACT MARTIN COUNTY OVER THE
NEXT COUPLE OF HOURS. ADDITIONAL SCATTERED SHOWERS WILL MOVE
EASTWARD NEAR METRO ORLANDO SOON, BUT THIS WILL LIKELY BE THE END TO
ANY RAIN CHANCES FOR THE REMAINDER OF THE DAY. THE APPROACHING COLD
FRONT HAS NOW CLEARED PAST TALLAHASSEE, FORCING EROSION OF CLOUD
COVER AS IT NEARS. THE REMAINDER OF DAYLIGHT HOURS WILL STILL BE
CLOUDY LOCALLY, WITH GUSTY SOUTH TO SOUTHWEST WINDS SOON TO VEER
WESTERLY. THE FRONTAL BOUNDARY IS EXPECTED TO BE ON THE DOORSTEP OF
THE LOCAL AREA BY MIDNIGHT, QUICKLY SHIFTING WINDS NORTHWEST AND
BRINGING MUCH DRIER AIR (PW LESS THAN 0.60") AS WELL AS COOLER
TEMPERATURES. NORTH OF I-4, LOWS TONIGHT WILL DROP TO THE LOW TO MID
50S, BUT WITH THE FRONT BISECTING THE LOCAL AREA, SOUTHERN LOCATIONS
WILL STILL OBSERVE TEMPS IN THE LOW/MID 60S.
TOMORROW...DOMINANT HIGH PRESSURE WILL BUILD IN ACROSS THE SOUTHEAST
AS THE FRONT EXITS SOUTH FLORIDA CREATING A SURGE OF BREEZY
NORTHERLY WINDS OF 15-20 MPH. EVEN WITH CLEAR SKIES RETURNING,
TEMPERATURES WILL STRUGGLE TO REACH 70 DEGREES ACROSS MOST OF THE
AREA, WITH ONLY THE TREASURE COAST BREAKING INTO THE LOWER 70S.
TOMORROW NIGHT WILL BE THE FIRST CHILLY NIGHT OF THE SEASON, WITH
TEMPERATURES DIPPING INTO THE 40S AREA WIDE, EVEN REACHING THE LOWER
40S IN RURAL LAKE, VOLUSIA AND OSCEOLA COUNTIES. WHILE WIND CHILL
VALUES WON'T BECOME A HAZARDOUS WEATHER THREAT, THE BREEZY
CONDITIONS WILL MAKE THE FEELS LIKE TEMPERATURES FALL INTO THE UPPER
30S - A CLEAR INDICATION THAT ITS TIME FOR THE FLORIDIAN WINTER
CLOTHES TO COME OUT OF HIBERNATION.
FRIDAY-TUESDAY...(PREVIOUS) AN UPPER LEVEL TROUGH IS EXPECTED TO
MOVE EAST- SOUTHEAST OVER THE SOUTHEAST US FRIDAY INTO SATURDAY
WITH REINFORCING COLD AIR ADVECTION RESULTING IN COOLER AIR INTO
THE WEEKEND. WINDS WILL BE BREEZY FROM THE WEST-NORTHWEST FRIDAY
AT 12- 18MPH WITH GUST TO 25-30MPH. WINDS ARE EXPECTED TO VEER
NORTH- NORTHEAST INTO SUNDAY AND THEN ONSHORE FROM THE EAST INTO
NEXT WEEK. THE DRY WEATHER WILL CONTINUE THROUGH THE FORECAST
PERIOD. AFTERNOON HIGHS IN THE UPPER 60S TO MID 70S ARE FORECAST
WITH SUNNY SKIES FRIDAY WITH THE MID TO UPPER 60S SATURDAY.
HIGH PRESSURE IS EXPECTED TO BUILD OVER THE DEEP SOUTH SATURDAY AND
THEN SHIFT EAST OVER THE SOUTHEAST US, IN ADDITION TO THE WESTERN
ATLANTIC SUNDAY INTO NEXT WEEK. TEMPERATURES WILL GRADUALLY WARM AS
WINDS VEER ONSHORE INTO NEXT WEEK WITH HIGHS IN THE LOW TO MID 70S
SUNDAY AND THE MID 70S TO LOW 80S INTO NEXT WEEK WITH SUNNY SKIES.
LOWS IN THE UPPER 30S TO NEAR 50 DEGREES ARE FORECAST FRIDAY MORNING
AND THROUGH THE WEEKEND BEFORE INCREASING INTO THE MID 40S TO NEAR
60 DEGREES INTO NEXT WEEK. MINIMUM WIND CHILL VALUES ARE EXPECTED TO
DROP INTO THE MID 30S TO MID 40S FRIDAY AND SATURDAY MORNINGS WITH
THE LOW 40S TO LOW 50S FORECAST SUNDAY MORNING.
MARINE
ISSUED AT 222 PM EST WED NOV 20 2024
TONIGHT-TOMORROW...MARINE CONDITIONS WILL QUICKLY DETERIORATE
TONIGHT AND EARLY TOMORROW AS AN APPROACHING COLD FRONT SENDS A
BRISK NORTHERLY WIND SURGE ACROSS THE LOCAL ATLANTIC WATERS. WINDS
REACH 20-25 KNOTS INITIALLY NORTH OF CAPE CANAVERAL JUST AFTER
SUNSET THIS EVENING, SPREADING SOUTHWARD TO JUPITER INLET BY
SUNRISE. SEAS WILL BUILD 6-8 FT UP TO 9 FT IN THE FAR OFFSHORE
WATERS NORTH OF SEBASTIAN INLET. A SMALL CRAFT ADVISORY WILL GO INTO
EFFECT THIS EVENING FOR ALL MARINE ZONES.
FRIDAY-SUNDAY...HAZARDOUS CONDITIONS WILL RETREAT TO THE OFFSHORE
WATERS LATE THURSDAY INTO FRIDAY, WITH NW WINDS STILL AT 15-25
KNOTS. NEARSHORE SEAS DO DIMINISH BELOW 5 FT ON THURSDAY, BUT THE
LINGERING 6-8 FT SWELL WILL CONTINUE IN THE GULF STREAM WATERS INTO
THE WEEKEND.
AVIATION
(18Z TAFS)
ISSUED AT 107 PM EST WED NOV 20 2024
CIGS HAVE DROPPED INTO MVFR RANGE WITH SOME SHOWERS FORMING ACROSS
THE ORLANDO AREA TERMINALS. TEMPOS ARE BEING ADDED TO ACCOUNT FOR
THIS LOWERING DECK THROUGH THE AFTERNOON. OTHERWISE, FEW SHRA
THIS AFTERNOON AND EARLY EVENING ENDING FROM NORTH TO SOUTH OVER
OUR TERMINALS. COLD FRONT WILL USHER IN NW WINDS TONIGHT WHICH
WILL BECOME GUSTY AT TIMES (15-25KT). VFR IS FORECAST TO RESUME
IN ALL AREAS AFTER 21/00Z.
PRELIMINARY POINT TEMPS/POPS
DAB 54 68 45 66 / 0 0 0 0
MCO 56 67 47 67 / 10 0 0 0
MLB 59 71 47 69 / 20 0 0 0
VRB 61 73 47 70 / 20 0 0 0
LEE 53 67 45 67 / 0 0 0 0
SFB 54 68 45 67 / 10 0 0 0
ORL 56 69 47 68 / 10 0 0 0
FPR 61 73 46 70 / 20 0 0 0
MLB WATCHES/WARNINGS/ADVISORIES
FL...NONE.
AM...SMALL CRAFT ADVISORY FROM 1 AM TO 10 AM EST THURSDAY FOR AMZ550-
552-555.
SMALL CRAFT ADVISORY FROM 10 PM THIS EVENING TO 4 AM EST
SATURDAY FOR AMZ570-572-575.
DISCUSSION...SCHAPER
AVIATION...HEIL
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