316
FXUS62 KKEY 140230
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1030 PM EDT SUN APR 13 2025
..NEW DISCUSSION, MARINE, AVIATION
DISCUSSION
ISSUED AT 1030 PM EDT SUN APR 13 2025
IT IS A CALM EVENING ACROSS THE FLORIDA KEYS. KBYX RADAR CONTINUES
TO NOT DETECT ANY SHOWER ACTIVITY ACROSS THE AREA AND GOES EAST
NIGHTTIME MICROPHYSICS SHOWS SOME CUMULUS AND EVEN STRATOCUMULUS
STREAMING FROM EAST TO WEST ACROSS THE STRAITS OF FLORIDA.
TEMPERATURES ALONG THE ISLAND CHAIN ARE IN THE LOWER TO MID 70S
WITH DEW POINTS IN THE UPPER 50S TO LOWER 60S. SURFACE HIGH
PRESSURE REMAINS ENTRENCHED ACROSS THE NORTHEAST GULF AND FLORIDA
THIS EVENING. THIS IS LEADING TO MARINE PLATFORMS AROUND THE KEYS
OBSERVING NORTHEAST TO EAST BREEZES OF 5 TO 10 KNOTS NORTH OF THE
ISLAND CHAIN AND 10 TO 15 KNOTS SOUTH OF THE ISLAND CHAIN.
SHORT TERM FORECAST
THE 00Z EVENING SOUNDING SHOWS A SIMILAR PROFILE TO LAST EVENING
WITH VAST DRY AIR ABOVE 850 MB AND A STOUT INVERSION. SOME LOW
LEVEL MOISTURE IS BENEATH THE INVERSION BUT IT IS VERY SHALLOW
BETWEEN 925 TO 875 MB. THE WIND PROFILE SHOWS VEERING WINDS FROM
THE NORTH AT 1000 FT AGL TO EAST AT 3000 FT AGL. THIS INDICATIVE
OF SLIGHT WAA OR WARM AIR ADVECTION STARTING TO OCCUR. THE PWAT
VALUE MEASURED WAS 0.62 INCHES WHICH IS CLOSE TO THE MIN FOR THE
DATE WHICH IS 0.54 INCHES. OVERALL, NO EXPECTED CHANGES TO THE
ONGOING FORECAST THIS UPDATE.
MARINE
ISSUED AT 1030 PM EDT SUN APR 13 2025
THERE ARE CURRENTLY NO WATCHES, WARNINGS, OR ADVISORIES IN EFFECT
ACROSS THE FLORIDA KEYS COASTAL WATERS. FROM SYNOPSIS, HIGH
PRESSURE WILL SETTLE ACROSS THE FLORIDA PENINSULA THROUGH MONDAY
NIGHT. THIS WILL RESULT IN A BRIEF EPISODE OF FRESHENING EASTERLY
BREEZES. BREEZES WILL SLACKEN AS A WEAK BACK DOOR FRONT PASSES
THROUGH THE KEYS LATE TUESDAY INTO WEDNESDAY. THEN, REINFORCING
HIGH PRESSURE ARRIVES TOWARDS THURSDAY LEADING TO A STRONGER ROUND
OF FRESHENING BREEZES.
AVIATION
(00Z TAFS)
ISSUED AT 1030 PM EDT SUN APR 13 2025
VFR CONDITIONS ARE EXPECTED TO PERSIST THROUGH THE TAF PACKAGE.
NEAR SURFACE WINDS ARE EXPECTED TO REMAIN NORTH TO NORTHEAST AT 3
TO 8 KNOTS FOR THE NEXT COUPLE HOURS BEFORE SHIFTING TO THE
NORTHEAST TO EAST AFTER MIDNIGHT AND THEN BECOMING MAINLY EASTERLY
BETWEEN 8 TO 13 KNOTS ON MONDAY. WINDS MAY OCCASIONALLY GUST TO
15 TO 18 KNOTS LATE MORNING INTO THE AFTERNOON ON MONDAY.
PRELIMINARY POINT TEMPS/POPS
KEY WEST 80 71 82 73 / 0 0 0 0
MARATHON 80 72 80 72 / 0 0 0 0
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...MJV
AVIATION/NOWCASTS....MJV
DATA ACQUISITION.....DR
VISIT US ON THE WEB AT WEATHER.GOV/KEY
FOLLOW US ON FACEBOOK AND TWITTER AT:
WWW.FACEBOOK.COM/NWSKEYWEST
WWW.TWITTER.COM/NWSKEYWEST
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page