187
FXUS62 KMFL 031158
AFDMFL
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
758 AM EDT SAT OCT 3 2026
..NEW UPDATE, AVIATION
KEY MESSAGES
UPDATED AT 736 AM EDT SAT OCT 3 2026
- A HIGH RISK OF RIP CURRENTS IS NOW IN EFFECT ACROSS THE
ATLANTIC COAST BEACHES THROUGH SUNDAY EVENING.
- ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN
POSSIBLE EACH DAY THROUGH THE REST OF THE WEEKEND. THE HIGHEST
CHANCES WILL REMAIN DURING THE AFTERNOON AND EVENING HOURS
OVER THE INTERIOR AS WELL AS SOUTHWEST FLORIDA.
- HIGH TEMPERATURES WILL REACH THE LOW 90S IN MANY AREAS OF SOUTH
FLORIDA, ALONG WITH HEAT INDEX VALUES IN THE LOW-MID 100S EACH
DAY.
UPDATE
ISSUED AT 736 AM EDT SAT OCT 3 2026
MESOANALYSIS THIS MORNING REVEALS THAT THE ATMOSPHERIC STATUS QUO
PREVAILS AS SOUTH FLORIDA WAKES UP TO MOSTLY DRY BUT OVERCAST
CONDITIONS WITH AN EASTERLY BREEZE GRADUALLY ENHANCING AS DIURNAL
MIXING DEVELOPS. BRISK NORTHWESTERLY 300MB FLOW ON THE NORTHEAST
SIDE OF A WEAK LOBE OF UPPER LEVEL RIDGING ACROSS THE EASTERN GULF
CONTINUES TO ADVECT AN UPPER LEVEL CLOUD DECK DIRECTLY OVER SOUTH
FLORIDA WHICH HAS LED TO QUITE THE VIBRANT SUNRISE. AT THE
SURFACE, SHOWER AND THUNDERSTORM ACTIVITY AT THE MOMENT REMAINS
MOSTLY CONFINED TO THE ATLANTIC GULFSTREAM WATERS WHERE
INSTABILITY AND ASCENT IS CURRENTLY MAXIMIZED. A FEW SHOWERS AND
ISOLATED THUNDERSTORMS REMAIN POSSIBLE ALONG COASTAL AND METRO
PALM BEACH COUNTY FOR THE REMAINDER OF THIS MORNING WHERE A SLUG
OF DEEPER ATMOSPHERIC MOISTURE REMAINS DRAPED/ORIENTED FROM
SOUTHEAST TO NORTHWEST. WITH SURFACE HIGH PRESSURE ACROSS THE
WESTERN ATLANTIC WATERS REMAINING IN FIRM CONTROL OF LOW LEVEL
BOUNDARY LAYER STEERING AND MOISTURE IN THE BOUNDARY LAYER
REMAINING HIGH EVEN WITH MEAGER/LACKLUSTER SYNOPTIC SUPPORT, "RUN
OF THE MILL" SHOWER AND THUNDERSTORM ACTIVITY REMAINS POSSIBLE
ACROSS THE REGION TODAY. MESOSCALE MODELS (HRRR,RAP,RRFS) HINT AT
A FOCI OF CONVECTION INITIALLY ACROSS COASTAL SOUTHWESTERN
FLORIDA DURING THE LATE AFTERNOON TO EARLY EVENING HOURS BEFORE
THE FOCUS OF ACTIVITY SHIFTS TO COASTAL SOUTHEASTERN FLORIDA AND
PERSISTS INTO THE OVERNIGHT HOURS.
SHORT TERM
(TODAY THROUGH SUNDAY)
ISSUED AT 405 AM EDT SAT OCT 3 2026
GLOBAL MODELS AND ENSEMBLES REMAIN IN FAIR AGREEMENT ABOUT THE
OVERALL SYNOPTIC SCENARIO FOR THE SHORT TERM. A MID-LVL RIDGE IS
EXPECTED TO LINGER OVER THE STATE, WHILE THE SFC RIDGE AXIS OF THE
ATLANTIC HIGH REMAINS AROUND THE NE PORTIONS OF THE PENINSULA.
MEANWHILE, A DEEPENING TROUGH/LOW LARGE STORM COMPLEX SEEMS TO
DEVELOP ACROSS THE MIDWEST AND SE CONUS THROUGH THE WEEKEND, BUT SO
FAR MODELS INSIST IN KEEPING IT BLOCKED TO OUR NORTH BY THE HIGH
PRESSURE.
A GENERALLY E/SE WIND REGIME WILL PREVAIL, WITH SOME PERIODS OF
COASTAL GUSTY CONDITIONS POSSIBLE. MEANWHILE, SATELLITE WATER
VAPOR DATA CONTINUES TO SHOW SOME MID-LVL DRIER AIR INTRUSION
ACROSS SOFLO TODAY, WHICH WILL AGAIN ACT AS TEMPORARY CAP TO
CONVECTIVE ACTIVITY. NBM HAS LOWERED POPS FOR THIS AFTERNOON,
BASICALLY INTO THE SAME 20-40% RANGE AS YESTERDAY. INSTABILITY/MOISTURE
PARAMETERS ALSO REMAIN SIMILAR TO PREVIOUS DAYS WITH PWATS JUST
ABOVE 2", 500 MB TEMPS OF -5C TO -6C, AND SBCAPE IN THE 1.5K-2K
J/KG RANGE. THIS WILL AGAIN KEEP POTENTIAL FOR STRONG TO SEVERE
CELLS RATHER LIMITED. BEST CHANCES FOR STRONGER CELLS WILL RESIDE
OVER INTERIOR AND WESTERN AREAS OF SOFLO. FOR SUNDAY, A LITTLE
INCREASE IN MOISTURE ADVECTION WILL BRING POPS INTO THE 60-70%
RANGE FOR THE GULF COAST AND THE LAKE REGION.
WITH DECREASING CLOUD COVERAGE AND MORE EFFICIENT DAYTIME HEATING,
EXPECT AFTERNOON HIGHS IN THE LOW 90S FOR MUCH OF SOFLO, ALONG WITH
HEAT INDEX VALUES IN THE LOW-MID 100S EACH DAY.
LONG TERM
(SUNDAY NIGHT THROUGH FRIDAY)
ISSUED AT 405 AM EDT SAT OCT 3 2026
THE DOMINANCE OF THE HIGH PRESSURE RIDGE TO THE NORTH OF SOFLO WILL
FINALLY BREAK DOWN ON MONDAY AS GUIDANCE WEAKENS THE MID-LVL RIDGE
ACROSS THE SE CONUS DUE TO A DEVELOPING TROUGH/LOW COMPLEX. AN
ASSOCIATED SFC COLD FRONT IS SHOWN GRADUALLY MIGRATING SOUTHWARD AND
BECOMING STATIONARY ALONG THE NORTHERN PORTIONS OF THE PENINSULA.
GLOBAL MODELS SHOW A POTENTIAL LOW DEVELOPING ALONG THE STALLED
FRONT AROUND NE FLORIDA, AND SLOWLY MIGRATING NORTHWARD ACROSS THE
WEST ATLANTIC DURING THE FIRST HALF OF THE WORK WEEK. THE INFLUENCE
OF THE LOW WILL KEEP ONGOING TROPICAL MOISTURE ADVECTION ACROSS THE
STATE. NBM RESPONDS TO THIS SCENARIO BY PUSHING HIGHEST AFTERNOON
POPS INTO THE 80-90% RANGE EACH DAY THROUGH THE END OF THE WORK
WEEK. COVERAGE BECOMES WIDESPREAD ACROSS SOFLO BY TUESDAY.
WITH THE WEAKENING OF THE RIDGE TO THE NORTH AND THE AFOREMENTIONED
LOW GRADUALLY PUSHING NORTHWARD, PRESSURE GRADIENTS OVER THE AREA
WILL WEAKEN AND BRING WINDS ACROSS SOFLO TO A LIGHT FLOW OR EVEN
CALM AT TIMES DURING MUCH OF THE WORK WEEK. THIS WILL ALLOW FOR
AFTERNOON SEA BREEZE AND STORM OUTFLOW BOUNDARIES TO DRIVE STORM
DEVELOPMENT AND MOTION. MAIN HAZARDS WILL INCLUDE DAMAGING GUSTS,
LIGHTNING STRIKES, AND LOCALIZED FLOODING.
TEMPERATURES SEEM TO REMAIN WARM WITH AFTERNOON HIGHS IN THE UPPER
80S TO LOW 90S, ALONG WITH HEAT INDEX VALUES IN THE LOW-MID
100S.
AVIATION
(12Z TAFS)
ISSUED AT 736 AM EDT SAT OCT 3 2026
BREEZY EAST-SOUTHEASTERLY FLOW WILL PREVAIL AT ALL TERMINALS TODAY
OUTSIDE OF ERRATIC WINDS ASSOCIATED WITH ANY TSRA/SHRA. GREATEST
CONFIDENCE FOR POTENTIAL IMPACTS AT ANY TERMINAL IS AT KAPF WHERE
TSRA/SHRA MAY DEVELOP BETWEEN 18-20Z AND BRING VIS/CIG IMPACTS.
EVEN SO, CONFIDENCE REMAINS LOW ENOUGH TO RETAIN VCTS IN THE TAFS
AT KAPF FOR NOW. SHRA/TSRA MAY ONCE AGAIN INCREASE ALONG THE EAST
COAST OF SOUTH FLORIDA LATE IN THE DAY AND INTO THE OVERNIGHT
HOURS.
MARINE
ISSUED AT 405 AM EDT SAT OCT 3 2026
A MODERATE TO FRESH EAST SOUTHEASTERLY BREEZE WILL CONTINUE ACROSS
MOST OF THE LOCAL WATERS THROUGH THE REST OF THE WEEKEND. THESE
WINDS WILL GRADUALLY DIMINSH EARLY NEXT WEEK, AND THEY COULD BECOME
SOUTH SOUTHWESTERLY ACROSS THE GULF WATERS DURING THIS TIME FRAME.
SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE EACH DAY
THROUGH THE WEEKEND AND INTO EARLY NEXT WEEK ACROSS MOST OF THE
LOCAL WATERS.
GULF STREAM HAZARDS: NONE.
BEACHES
ISSUED AT 404 AM EDT FRI OCT 2 2026
A HIGH RISK IF RIP CURRENTS IS NOW IN EFFECT FOR ALL ATLANTIC
BEACHES THROUGH SUNDAY EVENING. PLEASE FOLLOW ALL POSTED SAFETY
MEASURES AT LOCAL BEACHES.
PRELIMINARY POINT TEMPS/POPS
MIAMI 89 79 90 78 / 10 10 10 0
WEST KENDALL 89 78 90 77 / 10 10 10 0
OPA-LOCKA 88 78 90 77 / 10 10 10 0
HOMESTEAD 89 79 90 78 / 10 10 10 10
FORT LAUDERDALE 88 79 89 78 / 20 20 10 10
N FT LAUDERDALE 88 79 89 78 / 20 20 20 10
PEMBROKE PINES 88 78 89 77 / 20 20 10 0
WEST PALM BEACH 88 78 90 77 / 30 30 30 10
BOCA RATON 88 79 89 77 / 30 20 20 10
NAPLES 90 76 90 75 / 60 30 50 20
MFL WATCHES/WARNINGS/ADVISORIES
FL...HIGH RIP CURRENT RISK THROUGH SUNDAY EVENING FOR FLZ168-172-173.
AM...NONE.
GM...NONE.
SHORT TERM...17
LONG TERM....17
AVIATION...HADI
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