Marine Forecasts

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7 Day Forecast for Marine Location Near Cudjoe Key, FL

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Area Discussion for - Key West, FL

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FXUS62 KKEY 221003 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 503 AM EST Wed Jan 22 2020

DISCUSSION. Currently - Strong cold northerly winds continue to blast the Keys this morning due to both a high pressure cell over the eastern United States and the Gulf of Mexico and a deepening low centered north of the Bahamas. Temperatures continue to fall this morning and now range broadly from the mid 50s in the Lower Keys to the mid 40s in the Upper Keys. Dew points are in the upper 30s to near 40, this is resulting in the lowest wind chill readings in the mid 30s in the Upper Keys. Needless to say, stable conditions prevail with a strong subsidence inversion based around 850 mb. The only cloud cover across the island chain is some stratocumulus in the Lower Keys and a more consolidated deck to the west and south.

Forecast - Over the next couple of days the low off Florida will swing further out into the Atlantic while the high over the eastern United States weakens and aligns over the Atlantic states. Consequently, local winds will begin trending downwards after sunrise. Windy conditions this morning will give way to breezy this afternoon. Winds will continue to relax and slowly veer more northeasterly over the next day or so. The cold northerlies will keep temperatures well below seasonable norms today, with day time temperatures just managing to scratch their way to near 60 and falling only a degree or two tonight. Dew point temperatures will fall a bit further into the mid 30s. Mostly clear conditions will prevail across most of the island chain with no chance for rain today. However, slight chances will return as increased low level moisture is slung southwestward around low north of the Bahamas.

The ridge to our north will expand eastward on Thursday and will attempt to turn light winds easterly. The very cool gulf and bay side waters will delay the timing of this veering, but turn and decouple they eventually will. Temperatures will slowly moderate back towards seasonal norms Thursday night and Friday and dew point temps will rise sharply into the 60s. Slight chances of rain will continue.

Heading towards the weekend, the ridge will shove off into the Atlantic. Meanwhile, a trough, associated with the next mid latitude low, will move into the eastern United States and extend into Florida and the eastern Gulf of Mexico. As a result, winds along the Keys will become light and varying. Winds will eventually shift northwest to north and strengthen moderately as the next cold front pushes through the area. Although there is a hint of upper level support and good low level moisture with the next front, CAPE is lacking and lower level flow is weak and not very supportive. For now will maintain slight chance of precipitation. Expect temperatures to fall some, but by only a couple of degrees.

MARINE. Strong high over the eastern United States and a deepening low north of the Bahamas continues to blast strong northerlies across Keys waters. A Small Craft Advisory remains in effect for all Keys waters. Winds will oscillate their way downwards today into tomorrow as the low moves out into the open Atlantic and the high weakens and moves into the eastern United States. The advisory will gradually be pared back as conditions warrant. Winds will continue to relax over the next couple of day, becoming light, and in some places variable by Friday. Another cold front is expected to push southward through the area on Saturday, resulting in winds shifting northerly and strengthening moderately.

AVIATION. VFR conditions will prevail at the island terminals through 23/12z. Strong crosswinds will continue to be the main impact this forecast, though speeds will gradually decrease this afternoon and evening as the direction veers slightly northeast. A warm occluded front will cause the shift in winds, ushering in increased low-level moisture with ceilings possibly becoming broken as low as 2000 ft.

PRELIMINARY POINT TEMPS/POPS. Key West 61 61 74 67 / 0 - 20 20 Marathon 61 61 74 66 / 0 - 20 20

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



Public/Marine/Fire . 11 Aviation/Nowcasts . WLC

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
KYWF1 - 8724580 - Key West, FL	18 mi	56 min					1021.1 hPa
SMKF1 - Sombrero Key, FL	20 mi	36 min	N 23 G 28	50°F				41°F
VCAF1 - 8723970 - Vaca Key, FL	20 mi	56 min	N 9.9 G 17	51°F	62°F		1020.4 hPa (+0.8)
SANF1 - Sand Key, FL	25 mi	36 min	N 19 G 25	53°F				43°F
42095	30 mi	56 min			76°F	4 ft
JKYF1 - Johnson Key, FL	42 mi	116 min			53°F
LRKF1 - Little Rabbit Key, FL	42 mi	176 min			57°F
MUKF1 - Murray Key, FL	43 mi	116 min			54°F
PKYF1 - Peterson Key, FL	43 mi	116 min			61°F
BKYF1	48 mi	116 min			49°F
WRBF1 - Whipray Basin, FL	49 mi	116 min	WNW 19		55°F

Wind History for Key West, FL

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10 AM

11 AM

12 PM

1 PM

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3 PM

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5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

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5 AM

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Last 24hr

N22

N20

N17 G23

N18 G26

N18 G27

N23 G28

N21 G29

N25

N23 G30

N24 G33

N26 G32

N24 G32

N26

N25 G31

N23

N21 G28

N21 G29

N20 G26

N22

N21 G30

N21 G28

N23 G29

N19 G26

N16 G23

1 day ago

N15

N12 G16

N13 G16

N16

N13 G17

N17

N18 G22

N18 G22

N15 G20

N18 G22

N18

N18 G23

N17 G23

N11 G19

N8 G14

NE7 G17

N7 G14

NE11 G15

N12 G18

N14 G18

N11 G17

N15 G19

N16 G22

N17 G21

2 days ago

SE10 G14

SE11

S8 G11

S10 G14

S10 G15

S8 G16

SE6 G16

SE8 G12

SE7 G13

SE3 G7

W3

E1

N2

NE2

N1

N1

NW5

NW10

N9

N12

N12 G15

N13 G17

N10 G17

N16

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Key West Naval Air Station, FL	12 mi	2 hrs	N 17 G 26	10.00 mi	Partly Cloudy	53°F	37°F	57%	1020.6 hPa
Key West International Airport, FL	16 mi	63 min	N 14 G 21	10.00 mi	A Few Clouds	54°F	39°F	59%	1021.1 hPa
The Florida Keys - Marathon International Airport, FL	24 mi	63 min	N 17 G 23	10.00 mi	Fair	50°F	35°F	57%	1020.4 hPa

Link to 5 minute data for KNQX

Wind History from NQX (wind in knots)

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9 PM

10 PM

11 PM

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Last 24hr

N19 G25

N20

N19 G25

N22

N22 G28

NW26 G33

NW22 G30

N22 G28

N22 G31

N24 G31

N27 G34

N27 G32

N25 G30

--

N24 G28

N17

N22 G28

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N24 G31

N21 G28

N20 G27

N19

N17 G26

N15 G23

1 day ago

N11

N9

N9

N8

N14

N13

N16

N17

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N16

N17

N16

NE13 G19

N15

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N14

N14 G21

N14 G21

N14

N16

N17

N17

2 days ago

SE10

S13

S11

S14

S13

S8

S4

S9

SE9

SE8

N4

N3

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Calm

Calm

NW4

N8

N7

N10

N11

N13

N15

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Tide / Current Tables for Gopher Key, Cudjoe Bay, Florida

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Tide / Current Tables for No Name Key (northeast of), Florida Current

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Weather Map

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GEOS Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for Key West, FL (9,2,3,4)

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Ground Weather Radar Station Key West, FL

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Gulf Stream Current

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