198
FXUS62 KJAX 202154
AFDJAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
554 PM EDT FRI JUN 20 2025
..NEW UPDATE, MARINE
UPDATE
ISSUED AT 544 PM EDT FRI JUN 20 2025
FOR THE LATEST NE FL AND SE GA DAILY KEY MESSAGES PLEASE VISIT:
HTTPS://WWW.WEATHER.GOV/MEDIA/JAX/BRIEFINGS/NWS-JAX-BRIEFING.PDF
EVENING UPDATE TO REFLECT THUNDERSTORM CHANCES CONCENTRATING
BETWEEN THE ST. JOHNS RIVER BASIN OF CLAY/PUTNAM COUNTIES TOWARD
THE I-75 CORRIDOR GENERALLY NEAR AND SOUTH OF GAINESVILLE WHERE
DEEPER MOISTURE (PWAT NEAR 2 INCHES) COINCIDES OVER CONVERGING SEA
BREEZE AND OUTFLOW BOUNDARIES. NORTH OF I-10, DRY WNW FLOW AND
UPPER LEVEL SUBSIDENCE WILL BRING A DRY AND PLEASURE EVENING, AS
WELL AS FOR COASTAL LOCATIONS WHERE THE EAST COAST SEA BREEZE HAS
DRIFTED INLAND. A FEW STRONG TO PULSE SEVERE STORMS POSSIBLE
ACROSS ALACHUA, PUTNAM AND MARION COUNTIES WHERE DOWNDRAFT CAPE IS
HIGHER IN THE 700-1000 J/KG RANGE. WET DOWNBURSTS AND VERY HEAVY,
BRIEFLY FLOODING RAINFALL ARE POSSIBLE NEAR CELL MERGERS.
RAINFALL WILL TAPPER OFF AFTER 9 PM WITH DRY CONDITIONS OVERNIGHT
UNDER MOSTLY CLEAR TO PARTLY CLOUDY SKIES. COULD SEE SOME UPPER
60S NEAR AND NORTH OF THE I-10 CORRIDOR WHERE DRIER AIR MIXED DOWN
TODAY WITH LOWS IN THE 70S ACROSS MUCH OF NE FL AND THE COAST.
INLAND EARLY MORNING FOG POTENTIAL CONTINUES, ESPECIALLY WHERE
HEAVY RAINFALL OCCURRED TODAY.
MARINE
ISSUED AT 544 PM EDT FRI JUN 20 2025
A SURFACE FRONT WILL LINGER AND BECOME DIFFUSE OVER
NORTH-CENTRAL FLORIDA TONIGHT. HIGH PRESSURE WILL BUILD NORTHWARD
FROM SOUTH FLORIDA SATURDAY AND EXTEND OVER THE LOCAL WATERS, WITH
SOUTHEASTERLY WINDS ACROSS THE LOCAL WATERS. THE HIGH WILL BUILD
NORTH OF THE LOCAL WATERS SUNDAY AND MONDAY WITH EASTERLY WINDS
OVER THE LOCAL WATERS AND A DECREASE IN SHOWER AND THUNDERSTORM
ACTIVITY. THE HIGH WILL BUILD DIRECTLY OVER THE LOCAL WATERS MID-
WEEK WITH SEA BREEZE DOMINANT WINDS AND LOW RAIN CHANCES.
RIP CURRENTS: MODERATE RISK THROUGH THE WEEKEND WITH SOUTHEASTERLY
TO EASTERLY WINDS.
PRELIMINARY POINT TEMPS/POPS
AMG 70 94 71 92 / 0 20 10 30
SSI 75 89 77 88 / 0 20 10 20
JAX 71 93 73 92 / 0 30 10 30
SGJ 73 90 74 89 / 10 30 10 30
GNV 71 94 73 95 / 40 60 20 40
OCF 71 94 73 95 / 60 50 20 50
JAX WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GA...NONE.
AM...NONE.
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