930
FXUS62 KMFL 211603
AFDMFL
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
1203 PM EDT MON APR 21 2025
..NEW SHORT TERM, AVIATION, MARINE, BEACHES
SHORT TERM
(REST OF TODAY THROUGH TUESDAY)
ISSUED AT 1201 PM EDT MON APR 21 2025
STOUT MID-LEVEL RIDGING REMAINS ESTABLISHED ACROSS THE REGION TODAY
AS A SUBSEQUENT (IMPRESSIVELY) STRONG SUBSIDENCE INVERSION REMAINS IN
PLACE WITH COPIOUS AMOUNTS OF DRY AIR ALOFT. TAKE YOUR PICK OF ACARS
DATA FROM ANY OF THE REPORTING AIRPORTS FROM SOUTH FLORIDA THIS
AFTERNOON AND YOU WILL SEE THE SAME GENERAL REPRESENTATION OVER AND
OVER AGAIN, DRY AIR THROUGHOUT THE VERTICAL COLUMN WITH A VERY
STRONG CAPPING INVERSION AT ROUGHLY 825-850MB AND A SMALL MOIST
LEVEL AT 250MB (REPRESENTATIVE OF UPPER LEVEL CLOUD COVER). FOR THE
REMAINDER OF THE DAY, EASTERLY WINDS WILL REMAIN BREEZY ACROSS THE
REGION WITH A WIDESPREAD/OVERSPREADING LOW LEVEL CUMULUS FIELD
BRISKLY ADVECTING FROM EAST TO WEST ACROSS THE AREA. THE SLIVER OF
MOISTURE IN THE UPPER LEVELS WILL COINCIDE WITH SOME THIN UPPER
LEVEL CIRRUS DRIFTING FROM WEST TO EAST ALOFT FROM TIME TO TIME.
A SERIES OF SHORTWAVES PROPAGATING ALONG IN THE SUBTROPICAL JET-
STREAM CURRENTLY ORIENTED IN A SOUTHWEST TO NORTHEAST CONFIGURATION
OVER THE CENTRAL TO NORTHEASTERN UNITED STATES WILL GRADUALLY ERODE
THE PERIPHERY OF THE RIDGE AND RESULT IN SLOW WEAKENING OF THIS
PERSISTENT MID-LEVEL FEATURE. ALTHOUGH THE MID-LEVEL RIDGE WILL
CONTINUE TO WEAKEN, OUR PREVAILING WEATHER PATTERN WILL REMAIN
STATUS QUO AS SURFACE RIDGING CONTINUES A SURFACE EASTERLY FLOW
REGIME.
HIGHS EACH AFTERNOON WILL BE IN THE LOW TO MIDDLE 80S ACROSS THE
EAST COAST, WITH LOW 90S EXPECTED ACROSS PORTIONS OF WESTERN SOUTH
FLORIDA. LOWS WILL DROP INTO THE LOW 60S ACROSS THE INTERIOR AND
WEST COASTS (AWAY FROM THE EASTERLY MARITIME INFLUENCE) WITH TEMPS
IN THE LOW 70S ALONG THE EAST COAST.
LONG TERM
(TUESDAY NIGHT THROUGH SUNDAY)
ISSUED AT 219 AM EDT MON APR 21 2025
MODELS DEPICT A BUSY WEATHER PATTERN ACROSS MUCH OF THE NATION TO
START THE LONG TERM WITH A TROUGH/LOW COMPLEX MOVING INTO THE E
CONUS AND PUSHING FURTHER SOUTH THE RIDGE ACROSS THE REGION. BUT THE
RIDGE REMAINS STRONG ENOUGH TO KEEP SOFLO UNDER OVERALL SUBSIDENCE,
WITH MODEL SOUNDINGS STILL SHOWING PWATS BELOW OR AROUND 1 INCH, AND
GENERALLY DRY AIR ABOVE 850MB THROUGH THURSDAY MORNING. THEREFORE,
DRY AND STABLE WEATHER SHOULD CONTINUE THROUGH THAT TIME.
BY THURSDAY AFTERNOON AND THROUGH FRIDAY, ENSEMBLES AND EURO
GUIDANCE SHOW FAIR AGREEMENT IN HAVING THE AFOREMENTIONED TROUGH
PUSHING THE RIDGE FURTHER TO THE ENE OF SOFLO WHILE ERODING IT. THIS
WILL ALLOW FOR MOISTURE TO BEGIN FILTERING INTO THE AREA, ESPECIALLY
WITH RETURNING ROBUST ONSHORE FLOW/SEA BREEZE CIRCULATIONS IN THE
AFTERNOON HOURS. UNFORTUNATELY, THE AIR MASS IS NOT EXPECTED TO
MODIFY ENOUGH TO RESULT IN SIGNIFICANT RAIN ACTIVITY. LATEST POPS/WX
COVERAGE REMAINS IN THE 15-25% RANGE THURSDAY AND FRIDAY, AND 20-30%
BY SATURDAY. CAN'T RULE OUT AN ISOLATED THUNDERSTORM OR TWO WITH
DAYTIME HEATING, AND WITH SEA BREEZE BOUNDARIES BECOMING THE MAIN
FOCAL POINT FOR TALLER/DEEPER CONVECTION.
EXPECT AFTERNOON HIGH TEMPERATURES TO REMAIN IN THE MID TO UPPER 80S
THROUGH MUCH OF SOFLO, EXCEPT FOR A FEW INTERIOR LOCATIONS
POTENTIALLY REACHING THE LOW 90S AT TIMES. MORNING LOWS SHOULD
REMAIN IN THE MID-UPPER 60S INLAND, AND UPPER 60S TO LOW 70S NEAR
THE COASTS.
AVIATION
(18Z TAFS)
ISSUED AT 1201 PM EDT MON APR 21 2025
VFR WILL PREVAIL THROUGH THE 18Z TAF PERIOD WITH EASTERLY WINDS
10-15 KNOTS THIS AFTERNOON. APF SHOULD HAVE A BRIEF PERIOD OF
ONSHORE WINDS AFTER 18-19Z
MARINE
ISSUED AT 1201 PM EDT MON APR 21 2025
VFR WILL PREVAIL THROUGH THE TAF WITH EASTERLY WINDS 10-15 KNOTS.
APF SHOULD HAVE A BRIEF PERIOD OF ONSHORE WINDS LATER IN THE
AFTERNOON.
BEACHES
ISSUED AT 1201 PM EDT MON APR 21 2025
MODERATE EASTERLY FLOW WILL CONTINUE THROUGH THE WEEK AND WILL
SUPPORT A HIGHER THAN USUAL RISK FOR LIFE THREATENING RIP CURRENTS.
A HIGH RIP CURRENT RISK REMAINS IN EFFECT TODAY FOR THE EAST COAST
OF SOUTH FLORIDA.
PRELIMINARY POINT TEMPS/POPS
MIAMI 72 83 72 83 / 0 0 0 0
WEST KENDALL 68 85 69 85 / 0 0 0 0
OPA-LOCKA 70 84 71 85 / 0 0 0 0
HOMESTEAD 71 83 71 84 / 0 0 0 0
FORT LAUDERDALE 72 81 72 82 / 0 0 0 0
N FT LAUDERDALE 72 81 72 82 / 0 0 0 0
PEMBROKE PINES 72 86 73 87 / 0 0 0 0
WEST PALM BEACH 69 82 70 83 / 0 0 0 0
BOCA RATON 71 83 71 84 / 0 0 0 0
NAPLES 67 86 66 87 / 0 0 0 0
MFL WATCHES/WARNINGS/ADVISORIES
FL...HIGH RIP CURRENT RISK THROUGH TUESDAY EVENING FOR FLZ168-172-173.
AM...NONE.
GM...NONE.
SHORT TERM...HADI
LONG TERM....AR
AVIATION...HADI
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