AFOS product AFDKEY
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Displaying AFOS PIL: AFDKEY
Product Timestamp: 2018-03-22 18:51 UTC

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FXUS62 KKEY 221851
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
251 PM EDT Thu Mar 22 2018

.DISCUSSION...
Under mostly sunny skies, temperatures in the Florida Keys are in
the upper 60s to near 70. Winds have moderated to a small degree,
especially along the islands and points northward. KBYX Doppler
radar has not had a single echo, even at very long distances, all
day. 

The latest cycle of the GFS and ECMWF suggest not making any large
changes to the gridded weather elements for this forecast. A large
area of high surface pressure will continue to expand across the
southeastern states tonight and Friday. The high will weaken to a
small degree from late Friday through the weekend, and another
large area of high pressure will reach southward over the eastern
seaboard early next week. Temperatures will remain on the cool
side in the near term, then moderate through the weekend as the
high pressure centered to our north turns the flow into the
easterly direction. Will keep each period of the entire forecast 
free from a mention of measurable precipitation, at least for one
more cycle. 

&&

.MARINE...
Winds have dropped off a little in Florida Bay and nearshore Gulf
waters adjacent to the Middle and Lower Keys this afternoon.
However, expect these winds to surge again through late this
evening and into early Friday morning. On that account, will re-
headline those areas with a small craft advisory, making it
headlined for all marine zones overnight. Winds should begin to
moderate in all marine zones through late Friday morning, then
settle into a moderate mainly easterly direction into the weekend.
Those moderate winds will continue early next week, then surge
again from the northeast to east late Monday/early Tuesday as 
high pressure intensifies down the eastern seaboard. 

&&

.AVIATION...
VFR and diminished northerly breezes will prevail at the EYW and MTH 
terminals through the remainder of the afternoon. Crosswinds will 
return to the terminals after 06Z as another density surge exits 
South Florida. Crosswinds will abate at both terminals after 15Z 
Friday morning. 

&&

.CLIMATE...
March 22, on this date in Key West climate history, in 1996, the 
daily record low temperature of 53F was recorded. For comparison, 
the low temperature this morning at our office in Key West was 64. 
Temperature records in Key West date back to 1872. 

&&

.PRELIMINARY POINT TEMPS/POPS...
Key West  60  72  65  76 / -  -  -  -  
Marathon  59  73  65  77 / -  -  -  -  

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...Small Craft Advisory GMZ031>035-042>044-052>055-072>075.

&&

$$

Public/Marine/Fire...04
Aviation/Nowcasts....CLR
Data Collection......Chesser

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