


Area Forecast Discussion
Issued by NWS Miami, FL
Issued by NWS Miami, FL
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275 FXUS62 KMFL 201133 AFDMFL Area Forecast Discussion National Weather Service Miami FL 733 AM EDT Sun Apr 20 2025 ...New UPDATE, AVIATION... .UPDATE... Issued at 727 AM EDT Sun Apr 20 2025 A bit of an impressive localized temperature gradient across the region this morning with daybreak temperatures in the middle to upper 50s across Big Cypress National Preserve and inland southwestern Florida as opposed to temperatures in the low to mid 70s along the east coast where a gentle easterly breeze is gradually picking up with diurnal heating beginning. The forecast from the midnight shift remains on track at this time and no major changes were made. && .SHORT TERM... (Today through Monday) Issued at 237 AM EDT Sun Apr 20 2025 A shortwave over the Southern Plains this morning will move NE through the MS Valley and into the Great Lakes region through Monday. The train of recent shortwaves will decrease the amplitude of the SE CONUS ridge, while the approach of the Southern Stream into the Gulf will decrease the strength of the ridge. At the surface, high pressure and easterly winds will prevail. With the weakening ridge and the shortwave moving away, gradients will decrease early next week and winds will subsequently weaken. No meaningful rainfall is expected over the next couple of days. The main sensible weather concern will again be the elevated winds that are expected this afternoon. Expect winds to be slightly less than yesterday, but will generally be around 15 to 20 mph with gusts around 25 mph. Highs will be in the middle 80s along the eastern half of South Florida, and the upper 80s elsewhere. Overnight lows will dip into the lower 60s across the western half, with low 70s more likely near the east coast. && .LONG TERM... (Monday night through Saturday) Issued at 237 AM EDT Sun Apr 20 2025 The western Atlantic high and mid-level ridging`s stronghold of our weather will continue through most of the week with dry and stable conditions. Through the mid-week, there will not be a sufficient moisture levels with the air mass still projected to be too dry for precipitation. Model guidance continues to forecast approximately 50- 70% of normal precipitable water and afternoon dew points in the low 60s in South Florida. Therefore, even with the easterly sea breeze and warm temperatures, conditions are expected to remain dry and stable through Thursday. However, with the latest model guidance, confidence has grown with the potential for the return of precipitation by Friday and into the weekend. The mid-level ridge begins to break down and surface level high pressure in the Atlantic high begins to drift to our northeast. With these changes, the sea breeze will have the potential to bring the return of unsettled weather and afternoon showers. With the strong easterly winds, and an increase in moisture seen in the latest ensembles (PWATS ~1.2"), the potential for rain on Friday and Saturday has risen to widespread 20-35% PoPs, with isolated thunderstorms focused on the Gulf coast. With plenty of time for change and more details to determine as time approaches, we will be grateful for any rain that us much needed across our entire region with the current drought conditions. Afternoon high temperatures will warm into the mid-to-upper 80s across a majority of the region, with a potential for above normal low 90s across much of the interior southwestern Florida. Overnight temperatures will be cool and comfortable, allowing for lows to drop into the 60s, except low 70s along the east coast. && .AVIATION... (12Z TAFS) Issued at 727 AM EDT Sun Apr 20 2025 Breezy easterly flow continues this morning across the immediate east coast as light winds gradually enhance inland. Winds will become gusty later this morning and remain gusty through sunset. VFR conditions are expected throughout the TAF forecast period. && .MARINE... Issued at 237 AM EDT Sun Apr 20 2025 Advisory level winds are expected to persist across a large portion of our Gulf and Atlantic waters again today. While these hazardous marine conditions are forecast to subside by tomorrow, Cautionary level winds are expected across the Atlantic waters throughout the week, with slightly calmer conditions over the Gulf waters. && .BEACHES... Issued at 237 AM EDT Sun Apr 20 2025 The persistent, elevated easterly winds will keep a high risk of rip currents in the forecast for Atlantic beaches over the next several days. This will result in continued life threatening swimming conditions, especially for inexperienced ocean swimmers. Surf will remain rough along the east coast, with breakers around 3-5 feet today, subsiding to around 2-4 ft for the remainder of the week. && .FIRE WEATHER... Issued at 237 AM EDT Sun Apr 20 2025 Breezy easterly winds will continue today with lowest relative humidities (around 40%) across the western half of south Florida. While Red Flag conditions are not expected to be met, caution should be exercised over the coming days. Keep in mind that county-enacted burn bans remain in place across much of western south Florida as well. && .PRELIMINARY POINT TEMPS/POPS... Miami 82 73 82 72 / 10 0 0 0 West Kendall 85 69 85 68 / 10 0 0 0 Opa-Locka 84 71 84 71 / 10 0 0 0 Homestead 83 72 83 71 / 10 0 0 0 Fort Lauderdale 80 72 81 72 / 10 0 0 0 N Ft Lauderdale 81 72 82 72 / 10 0 0 0 Pembroke Pines 85 72 87 72 / 10 0 0 0 West Palm Beach 82 70 82 70 / 10 0 0 0 Boca Raton 83 72 83 71 / 10 0 0 0 Naples 88 67 87 67 / 0 0 0 0 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...High Rip Current Risk through Monday evening for FLZ168-172-173. AM...Small Craft Advisory until 8 AM EDT Monday for AMZ630-650-651- 670-671. GM...Small Craft Advisory until 8 AM EDT Monday for GMZ656-657-676. && $$ SHORT TERM...Harrigan LONG TERM....JS AVIATION...Hadi