textproduct: Miami - South Florida

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.