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Area Forecast Discussion (AFD)

Issued by Key West, FL (KEY)

FXUS62 KKEY 230117

Area Forecast Discussion
National Weather Service Key West FL
917 PM EDT Sun Jul 22 2018

KBYX detects widely separated showers throughout the forecast
area. Skies over the island chain are partly cloudy. Winds over 
land are west to northwest near 10 mph. C-MAN winds, on average,
are west at 10 to 15 knots. Temperatures are in the mid to upper

.SHORT TERM (Overnight)...
In the low levels of the atmosphere, an area of low pressure will
be centered over the Southeastern United States overnight. In the
mid to upper levels of the atmosphere, a trough of low pressure
will be located over the eastern Gulf of Mexico tonight. The 00z
KKEY sounding is very unstable and exceptionally moist, with a
precipitable water (PWAT) value just under two and one quarter of
an inch. Atmospheric moisture will decrease overnight. By sunrise
Monday, PWAT values will be just under two inches, which is still
near the 75th percentile for this time of year. Chance POPs should
suffice for tonight. 


Moderate west breezes will prevail on all Keys coastal waters 
overnight. No advisories expected tonight through at least Friday 


Passing showers may occasionally impact EYW and MTH through
23/00z, bringing brief sub-VFR conditions. Outside of shower 
activity, VFR conditions are likely. Westerly flow of 5 to 7 knots
will increase to near 10 knots after sunrise, with gusts near 15 


A new daily record high temperature of 94 degrees was reached today 
at Key West International Airport, for July 22nd. This broke the
old record of 93 degrees, which last occurred in 1956. Key West 
International Airport is also on track to tie the daily record for
warm low temperature today, which is 85 degrees, previously set 
back in 2011. Temperature records in Key West date back to 1872. 





Data Collection......DR

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