National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS62 KKEY 221834
AFDKEY

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
235 PM EDT WED MAY 22 2013

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS ISOLATED SHOWERS OVER FLORIDA BAY AND NEARSHORE GULF OF
MEXICO WATERS NORTH OF THE MIDDLE KEYS. ELSEWHERE...KBYX DETECTS NO
PRECIPITATION ECHOES IN THE REMAINDER OF THE FORECAST AREA. SKIES
OVER THE ISLAND CHAIN ARE PARTLY CLOUDY. WINDS OVER LAND ARE SOUTH
TO SOUTHWEST AT 5 TO 10 MPH. C-MAN WINDS...ON AVERAGE...ARE
SOUTHWEST AT 5 TO 10 KNOTS. TEMPERATURES RANGE FROM THE MID 80S TO
THE LOWER 90S.

.SHORT TERM (TONIGHT THROUGH FRIDAY NIGHT)...
AN ATLANTIC RIDGE OF HIGH PRESSURE ACROSS NORTH FLORIDA WILL RETREAT
EASTWARD TONIGHT. A WEAK PRESSURE PATTERN WILL PREVAIL THURSDAY
THROUGH FRIDAY. A LARGE AREA OF HIGH PRESSURE OVER THE OHIO VALLEY
WILL BEGIN TO BUILD SOUTHWARD DOWN THE FLORIDA PENINSULA FRIDAY
NIGHT. PRECIPITABLE WATER VALUES SHOULD BE NEAR ONE AND ONE QUARTER
OF AN INCH TONIGHT THROUGH FRIDAY NIGHT. THE ANTICIPATED PRESENCE OF
THIS RELATIVELY DRY AIR MASS WILL LIMIT POPS TO SLIGHT CHANCE
CATEGORY TONIGHT THROUGH FRIDAY NIGHT.

.LONG TERM (SATURDAY THROUGH WEDNESDAY)...
THE AFOREMENTIONED AREA OF HIGH PRESSURE WILL CONTINUE TO BUILD
SOUTHWARD DOWN THE FLORIDA PENINSULA SATURDAY THROUGH SUNDAY NIGHT.
AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS THE
SOUTHEASTERN UNITED STATES MONDAY THROUGH WEDNESDAY. LACK OF
ATMOSPHERIC MOISTURE WILL LIMIT POPS TO SLIGHT CHANCE CATEGORY
SATURDAY THROUGH SUNDAY. ATMOSPHERIC MOISTURE SHOULD INCREASE ENOUGH
TO SUPPORT LOW CHANCE POPS SUNDAY NIGHT THROUGH WEDNESDAY.

&&

.MARINE...
LIGHT SOUTHWEST BREEZES WILL PREVAIL ON ALL KEYS COASTAL WATERS
TONIGHT. NO ADVISORIES OR CAUTIONARY HEADLINES EXPECTED TONIGHT
THROUGH AT LEAST SATURDAY MORNING. SMALL CRAFT ARE URGED TO EXERCISE
CAUTION ON ALL KEYS COASTAL WATERS SATURDAY AFTERNOON DUE TO
SUSTAINED NORTHEAST SURFACE WINDS OF 15 TO 20 KNOTS. A SMALL CRAFT
ADVISORY WILL LIKELY BE REQUIRED FOR ALL KEYS COASTAL WATERS
SATURDAY NIGHT THROUGH MONDAY NIGHT.

&&

.AVIATION...
THROUGH THIS EVENING...VFR CONDITIONS WILL PREVAIL AT THE KEY WEST
AND MARATHON TERMINALS. WINDS WILL BE MAINLY LIGHT AND VARIABLE AT
BOTH TERMINALS.

&&

.CLIMATE...
ON THIS DATE IN KEYS WEATHER HISTORY...IN 1985...THE LOW TEMPERATURE
AT KEY WEST INTERNATIONAL AIRPORT WAS 82 DEGREES. THIS SET THE DAILY
RECORD FOR WARMEST MINIMUM TEMPERATURE MEASURED IN KEY WEST ON MAY
22ND...A RECORD WHICH STILL STANDS 28 YEARS LATER. IN ADDITION...
THIS LOW TEMPERATURE OF 82 DEGREES IS THE WARMEST MINIMUM
TEMPERATURE EVER RECORDED IN KEY WEST DURING THE MONTH OF MAY.
TEMPERATURE RECORDS AT KEY WEST DATE BACK TO 1872.

&&

.PRELIMINARY POINT TEMPS/POPS...
KEY WEST  80 87 77 87 / 10 20 10 10
MARATHON  81 89 77 89 / 10 20 10 10

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GM...NONE.

&&

$$

PUBLIC/MARINE/CLIMATE/FIRE/DIGITAL...BS
AVIATION/NOWCASTS....................DEVANAS
DATA ACQUISITION.....................BWC

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