230
FXUS62 KKEY 101400
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1000 AM EDT WED AUG 10 2022
DISCUSSION
WEATHER CONDITIONS HAVE IMPROVED SIGNIFICANTLY THROUGH THIS
WEDNESDAY MORNING. HOWEVER, KEY WEST CONTINUES UNDER PARTLY CLOUDY
SKIES. MIMIC- TOTAL PRECIPITABLE IMAGERY SHOWS THAT IN FACT DRIER
AIR HAS STARTED TO MOVE IN FROM THE EAST. IN ADDITION, THE KEY
SOUNDING 10/12Z CONFIRMS THE PRESENCE OF DRIER AIR IN THE MID
LEVELS. OUR SOUNDING ALSO SHOWS THAT PRECIPITABLE WATER HAS
DECREASED SINCE LAST NIGHT AND IS NOW 1.76 INCHES. AT THIS TIME,
KBYX IS DEPICTING ISOLATED LIGHT SHOWERS ON OUR EASTERN CWA, WHILE
STRATIFORM RAIN IS DEPICTED ON OUR WESTERN CWA (LEFTOVERS FROM
EARLIER THUNDERSTORMS). TEMPERATURES IN THE ISLAND CHAIN ARE IN
THE LOW TO MID 80S, WITH DEW POINT IN THE MID 70S.
THE AFOREMENTIONED DRIER AIR MASS IS ASSOCIATED WITH THE SAHARA
AIR LAYER AS SEEN ON THE GOES-16 SAHARAN AIR LAYER TRACKING
PRODUCT UW- CIMMS/NOAA-HRD. THIS DRY AIR MASS WILL SUPPRESS
SHOWER AND THUNDERSTORM DEVELOPMENT TODAY, AS IT CONTINUES TO
FILTER INTO OUR ATMOSPHERE. THEREFORE, MOSTLY SUNNY SKIES WITH 10
PERCENT CHANCE OF RAIN SEEMS REASONABLE FOR TODAY. SURFACE WINDS
WILL CONTINUE OUT OF THE EAST TO SOUTHEAST AT 10 TO 15 MPH. ALL-
IN ALL, THE WEATHER FORECAST IS ON TRACK AND NO CHANGES ARE
PLANNED OR NEEDED AT THIS TIME.
MARINE
THERE ARE NO WATCHES, WARNINGS, OR ADVISORIES CURRENTLY IN EFFECT
FOR THE COASTAL WATERS OF THE FLORIDA KEYS. FROM SYNOPSIS, RIDGE
AXIS ASSOCIATED WITH HIGH PRESSURE OFF THE SOUTHEAST COASTLINE
WILL SLOWLY DIP SOUTHWARD TODAY AND TONIGHT, RESULTING IN
SLACKENING EAST TO SOUTHEAST BREEZES. AS AN UPPER- LEVEL TROUGH
APPROACHES THE EASTERN SEABOARD BY THE END OF THE WEEK AND INTO
THE WEEKEND, BREEZES WILL SLACKEN FURTHER, BECOMING LIGHT TO
GENTLE.
AVIATION
VFR CONDITIONS WILL PREVAIL AT BOTH THE KEY WEST AND MARATHON
TERMINALS THROUGH THIS AFTERNOON AND EVENING. ISOLATED SHOWERS AND A
THUNDERSTORM OR TWO ARE POSSIBLE, BUT THE PROBABILITY OF A SHOWER OR
STORM IMPACTING EITHER TERMINAL IS NOT HIGH ENOUGH TO WARRANT
INCLUSION IN THE TERMINAL FORECASTS. NEAR SURFACE WINDS WILL BE OUT
OF THE EAST NEAR 10 KNOTS.
CLIMATE
ON THIS DAY IN 1987, A RECORD HIGH TEMPERATURE OF 98 DEGREES WAS
RECORDED IN MARATHON. THIS ALSO TIES FOR THE WARMEST TEMPERATURE
EVER RECORDED IN THE MONTH OF AUGUST FOR THE MARATHON AREA.
TEMPERATURE RECORDS IN MARATHON DATE BACK TO 1950.
PRELIMINARY POINT TEMPS/POPS
KEY WEST 90 81 91 82 / 10 10 10 10
MARATHON 93 82 93 82 / 10 10 10 10
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...CLR/KR
AVIATION/NOWCASTS....DEVANAS
DATA ACQUISITION.....SMS
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