Area Forecast Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS62 KKEY 270216
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
920 PM EST MON JAN 26 2015

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS NO PRECIPITATION ECHOES. SKIES OVER THE ISLAND CHAIN
ARE MOSTLY CLEAR. WINDS OVER LAND ARE WEST TO NORTHWEST AT 15 TO 20
MPH...WITH GUSTS NEAR 25 MPH. C-MAN WINDS...ON AVERAGE...ARE WEST TO
NORTHWEST NEAR 20 KNOTS...WITH GUSTS NEAR 25 KNOTS. TEMPERATURES ARE
IN THE UPPER 60S.

.SHORT TERM (OVERNIGHT)...
IN THE LOW LEVELS OF THE ATMOSPHERE...A RIDGE OF HIGH PRESSURE WILL
BUILD EASTWARD ACROSS THE EASTERN GULF OF MEXICO OVERNIGHT. IN THE
MID TO UPPER LEVELS OF THE ATMOSPHERE...A TROUGH OF LOW PRESSURE
WILL MOVE EASTWARD OVER THE FLORIDA PENINSULA TONIGHT. THE 00Z KKEY
SOUNDING IS STABLE AND QUITE DRY...WITH A PRECIPITABLE WATER VALUE
JUST ABOVE ONE HALF OF AN INCH. ATMOSPHERIC MOISTURE WILL REMAIN
CONSTANT OVERNIGHT. THE STABLE AND VERY DRY AIR MASS IN PLACE WILL
BE RESPONSIBLE FOR NO CHANCE OF RAINFALL FOR THE FLORIDA KEYS
TONIGHT.

&&

.MARINE...
A SMALL CRAFT ADVISORY IS IN EFFECT FOR ALL KEYS COASTAL WATERS
TONIGHT DUE TO SUSTAINED WEST TO NORTHWEST SURFACE WINDS NEAR 20
KNOTS...WITH GUSTS NEAR 25 KNOTS. A SMALL CRAFT ADVISORY WILL LIKELY
BE REQUIRED FOR ALL KEYS COASTAL WATERS TUESDAY MORNING. NO
ADVISORIES OR CAUTIONARY HEADLINES EXPECTED TUESDAY AFTERNOON.
SMALL CRAFT ARE URGED TO EXERCISE CAUTION ON ALL KEYS COASTAL
WATERS TUESDAY NIGHT DUE TO SUSTAINED NORTHWEST TO NORTH SURFACE
WINDS OF 15 TO 20 KNOTS. SMALL CRAFT ARE URGED TO EXERCISE CAUTION
ON THE COASTAL WATERS OF THE FLORIDA STRAITS WEDNESDAY DUE TO
SUSTAINED NORTH SURFACE WINDS OF 15 TO 20 KNOTS. SUSTAINED NORTH TO
NORTHEAST SURFACE WINDS OF 15 TO 20 KNOTS ARE POSSIBLE ON THE
COASTAL WATERS OF THE ATLANTIC AND GULF OF MEXICO WEDNESDAY NIGHT.
SUSTAINED NORTHEAST TO EAST SURFACE WINDS OF 15 TO 20 KNOTS ARE
POSSIBLE ON THE COASTAL WATERS OF THE FLORIDA STRAITS THURSDAY AND
THURSDAY NIGHT. NO ADVISORIES OR CAUTIONARY HEADLINES EXPECTED
FRIDAY AND FRIDAY NIGHT. SUSTAINED EAST SURFACE WINDS OF 15 TO 20
KNOTS ARE POSSIBLE ON ALL KEYS COASTAL WATERS SATURDAY AND SATURDAY
NIGHT.

&&

.AVIATION...
VFR CONDITIONS WILL PERSIST THROUGH THE TERMINAL FORECAST PERIOD AT
BOTH THE KEY WEST INTERNATIONAL AND MARATHON ISLAND TERMINALS. ONCE
AGAIN WINDS WILL BE THE KEY ELEMENT TO THE FORECAST. NORTHWEST WINDS
ARE CURRENTLY NEAR 15 KNOTS...WITH GUSTS NEAR 25 KNOTS...AND WILL
DECREASE OVERNIGHT. MEANWHILE...A SECONDARY COLD FRONT WILL APPROACH
THE FLORIDA KEYS LATE TUESDAY...WITH ANOTHER WIND SURGE IN ITS WAKE
TUESDAY NIGHT.

&&

.CLIMATE...
ON THIS DATE IN FLORIDA KEYS WEATHER HISTORY...IN 1897...1.09 INCHES
OF RAIN FELL IN KEY WEST. THIS SET THE DAILY RECORD FOR MAXIMUM
RAINFALL MEASURED MEASURED IN KEY WEST ON JANUARY 26TH...A RECORD
WHICH STILL STANDS 118 YEARS LATER. RAINFALL RECORDS AT KEY WEST
DATE BACK TO 1871.

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GM...A SMALL CRAFT ADVISORY IS IN EFFECT FOR ALL KEYS COASTAL
     WATERS...GMZ031>035-042>044-052>055-072>075.

&&

$$

PUBLIC/MARINE/FIRE/CLIMATE/DIGITAL...BS
AVIATION.............................BWC

VISIT US ON THE WEB AT WWW.WEATHER.GOV/KEYWEST

FOLLOW US ON FACEBOOK AND TWITTER AT...

WWW.FACEBOOK.COM/NWSKEYWEST
WWW.TWITTER.COM/NWSKEYWEST


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.