511
FXUS62 KKEY 091746
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
146 PM EDT SUN AUG 9 2026
..NEW AVIATION
KEY MESSAGES
- GENTLE TO MODERATE BROADLY EASTERLY BREEZES WILL PREVAIL,
PEAKING OVERNIGHT AND LULLING DURING THE DAY.
- RAIN AND THUNDER CHANCES PEAK TODAY AND TONIGHT, AND NEAR TO
BELOW NORMAL SHOWER AND THUNDER CHANCES WILL PREVAIL STARTING
TOMORROW.
AVIATION
(18Z TAFS)
ISSUED AT 140 PM EDT SUN AUG 9 2026
OPTING TO MAINTAIN A BROAD VCSH FOR BOTH ISLAND TERMINALS AS
DISORGANIZED SHOWERS WILL CONTINUE TO POP UP AND FALL APART
QUICKLY OVER THE BEGINNING OF THE TAF PERIOD. OCCASIONAL MVFR CIGS
ARE POSSIBLE IF SHOWERS PASS OVER, OR IN THE VICINITY OF, EITHER
AIR FIELD, BUT ANY REDUCED CATEGORIES WILL BE VERY SHORT LIVED AS
THIS ACTIVITY IS MOVING AT APPROXIMATELY 15 TO 20 KNOTS. CROSSWIND
CONCERNS WILL REMAIN VERY LOW AS SURFACE WINDS WILL CONTINUE OUT
OF THE EAST TO EAST SOUTHEAST, BUT ERRATIC WINDS FROM COLLAPSING
THUNDERSTORMS COULD LEAD TO OCCASIONAL CROSSWINDS NEAR 20 KNOTS.
DRIER CONDITIONS SHOULD MOVE IN BY THE OVERNIGHT HOURS.
PREV DISCUSSION
ISSUED AT 1247 AM EDT SUN AUG 9 2026
THROUGH THIS WEEK, A DEEP LAYERED RIDGE WILL REMAIN DRAPED ACROSS
FLORIDA AS IT SHIFTS SOUTHWARD INTO CENTRAL FLORIDA. THIS WILL
HELP TO MAINTAIN BELOW NORMAL MOISTURE AND WEAK LOW LEVEL
INHIBITION. THIS ALONG WITH THE BACKGROUND ANTICYCLONIC FLOW WILL
KEEP RAIN CHANCES SLIM TO NONE. EASTERLY BREEZES WILL OSCILLATE
BETWEEN GENTLE AND MODERATE, PERFORMING THE USUAL LULLING DURING
THE DAY AND PEAKING OVERNIGHT. A SLIGHT DECREASING TREND IN WINDS
SPEEDS WILL OCCUR THROUGH THE FIRST HALF OF THE WEEK AS THE RIDGE
NUDGES SOUTHWARD. NO TREND IN TEMPERATURES ARE EXPECTED AND HIGHS
WILL REMAIN NEAR 90 AND LOWS IN THE LOWER TO MID 80S. DEW POINTS
WILL CONTINUE IN THE MID TO UPPER 70S.
MARINE
ISSUED AT 140 PM EDT SUN AUG 9 2026
THERE ARE NO WATCHES, WARNINGS, OR ADVISORIES IN EFFECT FOR THE
FLORIDA KEYS LOCAL WATERS, BUT SMALL CRAFT SHOULD EXERCISE CAUTION
HEADLINES MAY BE NEEDED FOR PORTIONS OF OUR MARINE ZONES LATER
TONIGHT. A MIX OF MOSTLY SHOWERS WITH SOME ISOLATED THUNDERSTORMS
WILL CONTINUE TO TRAVERSE THE AREA, LEADING TO LOCALIZED INSTANCED
OF STRONGER WINDS AND HIGHER SEAS. OTHERWISE, MODERATE EAST TO
SOUTHEAST BREEZES WITH ON AND OFF SHOWERS WILL CONTINUE TODAY AND
TONIGHT. RELATIVELY DRIER AIR WILL GRADUALLY FILTER IN OVER THIS
WEEK.
OF NOTE
ON THIS DAY IN KEYS WEATHER HISTORY, IN 1950, FROM THE KEY WEST
CITIZEN, "THOUSANDS OF FISH WERE FOUND IN THE STREETS OF KEY WEST
AFTER A HEAVY RAIN. MOST OF THE FISH WERE FOUND ALONG CAROLINE
STREET BETWEEN WILLIAM AND GRINNELL. ONE THEORY WAS THAT A LARGE
WATERSPOUT HAD CARRIED THE FISH ASHORE. THIS THEORY WAS SUPPORTED
BY THE FACT THAT MOST OF THE FISH WERE MULLET, WHICH SWIM ON THE
SURFACE AND COULD BE PICKED UP BY A WATERSPOUT. CAROLINE STREET
REGULARS INSISTED IT HAD RAINED FISH, AND ONE MAN SAID HE SAW A
FULL-GROWN SPONGE FALL FROM THE SKY."
PRELIMINARY POINT TEMPS/POPS
KEY WEST 83 92 83 92 / 40 20 10 10
MARATHON 84 90 84 90 / 30 20 10 10
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...DP
AVIATION/NOWCASTS....DP
DATA ACQUISITION.....DP
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