Area Forecast Discussion
Issued by NWS Miami, FL
Issued by NWS Miami, FL
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554 FXUS62 KMFL 302313 AFDMFL Area Forecast Discussion National Weather Service Miami FL 713 PM EDT Sun Jun 30 2024 ...New AVIATION... .SHORT TERM... (Rest of today through Monday) Issued at 1223 PM EDT Sun Jun 30 2024 A mid level shortwave will continue to push across South Florida through the rest of this afternoon and into tonight. With plenty of deep layer tropical moisture in place across the region, this mid level shortwave will continue to provide the support to fuel numerous showers and thunderstorms across the area through the evening hours. Since the steering flow will remain rather weak, showers and storms will remain slow moving. This, combined with the possibility of multiple rounds of heavy downpours, will allow for the potential of localized flooding especially over the metro areas. While the chances of strong thunderstorm development remain low, they cannot be entirely ruled out this afternoon. The best chances of strong thunderstorm development will be over the interior portions of Southwest Florida as the shortwave passes over during peak diurnal heating. The strongest thunderstorms could contain gusty winds, small hail, and frequent lightning. Most of the showers and thunderstorms over land will diminsh as the evening progresses due to loss of diurnal heating. The mid level shortwave will still be close enough to support the chance of additional shower and thunderstorm development over the local waters as well as the east coast overnight. Low temperatures tonight will generally range from the lower 70s across the Lake Okeechobee region to the upper 70s across the east coast metro areas. On Monday, the weather pattern across South Florida will remain rather unsettled as the mid level disturbance slowly pushes into the Southeastern Gulf of Mexico. At the surface, high pressure in the western Atlantic will get pinched further to the east as a frontal boundary remains draped over the Southeast and Gulf Coast States. This will cause the winds to become southeasterly as the day progresses. Plenty of deep tropical moisture will remain in place as forecast soundings show PWAT values ranging between 2.1 and 2.3 inches. This will help to support the development of scattered to numerous showers and thunderstorms as the day progresses. The showers and storms will start out over the local waters and the east coast metro areas in the morning before shifting towards the interior and west coast during the afternoon and evening hours. Since the steering flow will remain rather light, the storm motion will continue to remain slow. This could allow for the potential of localized flooding to continue especially in areas that are already saturated from recent heavy rainfall. High temperatures on Monday will generally rise into the upper 80s and lower 90s across most areas. && .LONG TERM... (Monday night through next Saturday) Issued at 251 PM EDT Sun Jun 30 2024 Latest forecast from the National Hurricane Center in Miami indicates that hurricane Beryl should remain well to the south of SoFlo during the long term period. Meanwhile, models continue to show an expanding upper/mid level ridge just north of the area, which gradually deepens and aligns with sfc high pressure. This will keep prevailing ESE winds over SoFlo, with a persisting typical summer weather pattern throughout much of the week. The main mechanisms for deep convection and potential strong thunderstorms will again be the combination of daytime heating and sea breeze boundaries. Showers and thunderstorms should first develop around the East Coast Metro areas during the late morning/early afternoon hours, then increasing in coverage and shifting west into interior and Gulf Coast areas during the late afternoon/early evening hours. The biggest cells could produce localized flooding as outflow boundaries interact and may result in slow-moving or even stationary storms. Temperatures should remain around or slightly warmer than normals, with afternoon highs in the upper 80s to low 90s, and heat indices reaching triple digits. Overnight lows should remain in the mid to upper 70s. && .AVIATION... (00Z TAFS) Issued at 659 PM EDT Sun Jun 30 2024 Mostly VFR conditions expected to prevail across the region through the evening hours. Isolated to scattered showers possible overnight with periods sub-VFR at TAF sites near storms. Winds will be light and variable overnight. Scattered to numerous showers and thunderstorms as the day progresses with the east coast this morning followed by the interior and Gulf Coast in the afternoon. Short-fused TEMPOS may be needed. Gulf sea-breeze may cause a wind shift at APF around 16-18Z. && .MARINE... Issued at 1223 PM EDT Sun Jun 30 2024 A gentle to moderate easterly wind flow will continue through tonight across the local waters. These winds will gradually become southeasterly over the Atlantic waters during the early portion of the week. Over the Gulf waters, winds will become south to southwesterly during this time frame. Seas over the Atlantic and Gulf waters will remain at 2 feet or less during the early portion of the week. Scattered to numerous showers and thunderstorms will develop each day across the local waters. Winds and seas could be locally higher in and around showers and storms. && .BEACHES... Issued at 1223 PM EDT Sun Jun 30 2024 The risk of rip currents may increase across the Atlantic Coast beaches towards the middle of the week as onshore flow increases. && .PRELIMINARY POINT TEMPS/POPS... Miami 77 90 80 91 / 50 60 50 70 West Kendall 75 90 77 92 / 40 70 40 70 Opa-Locka 77 91 80 92 / 40 60 50 70 Homestead 77 89 79 90 / 50 60 50 70 Fort Lauderdale 77 88 80 90 / 40 60 50 70 N Ft Lauderdale 78 90 80 90 / 40 60 50 70 Pembroke Pines 77 92 80 93 / 40 60 50 70 West Palm Beach 77 91 79 91 / 40 60 40 70 Boca Raton 78 91 80 91 / 40 50 50 70 Naples 75 90 78 91 / 40 70 40 70 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && $$ SHORT TERM...CWC LONG TERM....17 AVIATION...JS