Page Links Change Location One Page Printer Page HELP AIS Default setup SAVE setting RECALL saved setting

Marine Weather and Tides Key Biscayne, FL Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

---

Sunrise 7:06AM

Sunset 5:57PM

Wednesday January 22, 2020 6:28 PM EST (23:28 UTC)

Moonrise 5:16AM

Moonset 4:03PM

Illumination 5%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

---

---

7 Day Forecast for Marine Location Near Key Biscayne, FL

   Hourly   EDIT   Help

---

Area Discussion for - Miami-South Florida, FL

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS62 KMFL 222238 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 538 PM EST Wed Jan 22 2020

Update. Regarding reports of precipitation on West Palm Beach: further analyses of the layer/sfc temperatures indicate it is too warm to support snow anywhere across SoFlo. What is being reported in Palm Beach is a mix of light showers and graupel, which can be described as small, soft ice particles. Radar data this afternoon has been showing persistent areas of weak convection over the coastal waters off Palm Beach, which is manifesting the instability off the coastline. Meanwhile, winds are backing with height in the cold advection regime, becoming northeast around 700 mb and above, which will allow for any development of graupel over the coastal waters to be advected onshore with the light showers.

Mesoscale analyses show that cold air overlying the Gulf Stream/South Florida waters is providing enough instability for convective updrafts to deepen offshore and extend into icing layers in the mid levels, an ideal scenario for graupel formation. The airmass will remain cold enough for occasional graupel to survive all the way to the surface, potentially without fully melting once it is advected onshore by the mid level winds. However, any ice particulate matter that could reach the sfc is not forming in association with snow-growth processes.

The bottom line is that with sfc temps in the 50s to lower 60s, no snow has occurred, nor will occur across SoFlo in association with this activity. It is way too warm for snow to reach the low levels. But additional light to moderate showers may continue tonight with occasional instances of rain mixed with graupel.

Reynes/Cohen

Prev Discussion . /issued 339 PM EST Wed Jan 22 2020/

Short Term (Rest of Today-Thursday) .

There is a meso-low that has developed just north of the Bahamas, with a cloud band on the southwest side that is well defined on visible satellite. As this band pushes through it will help bring a slight chance of showers for the east coast later today. The band will also allow for a continued push of breezy and at times gusty northerly winds. These winds will continue to bring hazardous marine and beach conditions to South Florida.

Winds will gradually veer to northeasterly overnight, this will allow overnight/morning lows to be much warmer across the region. Lows will be 15 to 20 degrees above this morning lows. Minima temps tonight will be in the 50s, except upper 40s west of Lake Okeechobee.

Temperatures will continue to moderate after Sunrise on Thursday. The with an easterly breeze across the region. A slight moisture return will allow for the chance of a few isolated to scattered showers over the Atlantic waters and east coast region. High temperatures Thursday will be in the mid 70s across the region.

Long Term (Thursday Night Through Wednesday) .

As the area of low pressure in the Atlantic continues to move off to the east, a ridge of high pressure will build into South Florida on Thursday night and into Friday. Temperatures will continue to be on a warming trend as the winds will shift around to a more south to southeasterly direction. Low temperatures on Thursday night will range from the mid 50s across the northwestern interior to the mid 60s across the east coast metro areas. A slight chance of showers cannot be ruled out through the end of the work week across the east coast. High temperatures on Friday will range from the upper 70s across the east coast to the lower 80s across the interior sections.

An area of low pressure in the Great Lakes region will continue to move northeastward on Friday and the cold front associated with this system will begin to approach the Florida peninsula from the northwest. As the area of low pressure deepens and moves northeastward, the cold front will push through South Florida later in the day on Saturday and into Saturday night. This cold front will be weakening as it moves through and it will not have a lot of low level moisture to work with. Therefore, there will only be a slight chance of showers ahead of this front mainly over the Atlantic and Gulf coastal waters Friday night into Saturday.

Behind the cold front, another shot of cold air advection will move into the region which will allow for overnight lows to dip into the mid to upper 40s across the northwestern interior to near 60 across the east coast each night through the weekend and into early next week.

The latest GFS and the ECMWF continue to show a surface low developing in the Gulf of Mexico early next week along the stalled out frontal boundary that will be to our south. The latest GFS has the system farther north then previous runs and it is starting to come into agreement with the ECMWF with bringing an increased amount of moisture into South Florida. Therefore, the chances of rain have increased for early next week and a blend of the models was used in the forecast. This will continue to be monitored as the rest of the week progresses.

Marine .

Hazardous marine conditions will continue across South Florida with dangerous high seas in the Atlantic waters and particularly the Gulf stream. Seas in the Atlantic tonight will range between 10 and 15 feet especially in the Gulf Stream. Windy northerly winds will continue to affect South Florida waters with gusts getting up Gale Force conditions today in the Atlantic waters. The winds will begin to gradually subside and veer tonight and by Thursday afternoon they will be 10 to 15 knots from the northeast/easterly direction.

Aviation .

Generally VFR conditions throughout the period. A meso-low is producing a band of clouds that may bring brief period of SCT or BKN low clouds and an isolated shower but too limited to include in taf. Breezy and at time gusty northwesterly winds this afternoon. Winds will become less gusty and gradually subside as we move throughout the period. Winds will also veer throughout the period from NW-N-NE-E by tomorrow morning.

Beach Forecast .

A building northeast swell today through Friday in the Atlantic waters will allow for a High Risk of Rip Currents along the east coast beaches of South Florida. The breakers along the beaches of Palm Beach County will also be building to 7 to 8 feet today at least through Thursday. Therefore, a High Surf Advisory has also been issued for the beaches of Palm Beach County through Thursday evening.

Preliminary Point Temps/PoPs. West Palm Beach 60 75 63 76 / 20 20 30 20 Fort Lauderdale 60 75 65 76 / 20 20 20 20 Miami 59 75 64 77 / 20 20 20 20 Naples 53 77 60 77 / 10 10 0 10

MFL WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through Thursday evening for FLZ168-172- 173.

High Surf Advisory until 7 PM EST Thursday for FLZ168.

Wind Advisory until 7 PM EST this evening for FLZ168-172-173.

AM . Small Craft Advisory until 7 PM EST this evening for AMZ610-630.

Small Craft Advisory until 7 PM EST Thursday for AMZ650-651-670- 671.

Gale Warning until 7 PM EST this evening for AMZ650-651-670-671.

GM . Small Craft Advisory until 7 PM EST this evening for GMZ656-657- 676.

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
VAKF1 - 8723214 - Virginia Key, FL	2 mi	59 min			72°F		1015.1 hPa
FWYF1 - Fowey Rocks, FL	8 mi	29 min	NNW 18 G 20	61°F	76°F		1015.8 hPa (+0.4)
PEGF1	27 mi	59 min					1015.7 hPa
MDKF1	31 mi	89 min			61°F
HCEF1 - Highway Creek, FL	34 mi	89 min			60°F
LSNF1 - Long Sound, FL	36 mi	89 min			63°F
LBSF1 - Little Blackwater, FL	36 mi	149 min			62°F
THRF1	36 mi	149 min			63°F
JBYF1	38 mi	89 min			60°F
TCVF1 - Trout Cove, FL	39 mi	149 min			62°F
BWSF1 - Blackwater Sound, FL	39 mi	149 min			64°F
DKKF1 - Duck Key, FL	40 mi	149 min			61°F
TRRF1 - Taylor River, FL	42 mi	89 min			60°F
LMDF1 - Little Madeira, FL	44 mi	89 min			61°F
CANF1 - Cane Patch, FL	45 mi	89 min			65°F
BDVF1 - Broad River, FL	46 mi	89 min			64°F
NRRF1	47 mi	89 min			63°F
TPEF1 - Tarpon Bay East, FL	47 mi	149 min			64°F
WIWF1 - Willy Willy, FL	47 mi	89 min			58°F
TBYF1	48 mi	89 min			60°F
LRIF1	48 mi	89 min			62°F

Wind History for Virginia Key, FL

(wind in knots)    EDIT      (on/off)   Help

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

Last 24hr

NW7 G14

NW10 G16

NW11 G23

NW15 G24

NW15 G21

NW8 G20

NW12 G20

NW10 G14

W13 G24

NW12 G21

NW11 G21

W11 G20

NW11 G23

NW10 G21

NW10 G18

NW10 G17

W12 G18

W8 G15

W13 G18

NW12 G19

NW11 G17

NW7 G16

NW9 G14

W8 G12

1 day ago

N4 G11

NW8 G12

NW7 G11

N5 G14

NW8 G14

NW6 G11

NW6 G11

NW9 G12

NW7 G11

NW9 G15

NW7 G13

NW9 G14

NW7 G17

NW9 G14

NW4 G9

NW8 G14

NW9 G13

NW8 G14

NW6 G12

W11 G17

NW10 G16

NW9 G13

NW10 G16

NW11 G22

2 days ago

S8

S6

S6

S5

SW5

SW4

SW5

W2 G5

SW2

W3

SW2

W4

W4 G8

NW5 G9

NW6 G11

NW8 G11

NW4 G11

NW6

N3 G9

N4 G10

N4 G7

N5 G8

NE7 G10

N4 G10

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Miami, Miami International Airport, FL	10 mi	36 min	NNW 8	10.00 mi	Partly Cloudy	60°F	46°F	62%	1016.3 hPa
Miami, Kendall-Tamiami Executive Airport, FL	14 mi	36 min	NNW 11	10.00 mi	Fair	59°F	48°F	67%	1016 hPa
Miami, Opa Locka Airport, FL	16 mi	36 min	NNW 10	10.00 mi	Partly Cloudy	59°F	48°F	69%	1016.7 hPa
Homestead Air Reserve Base, FL	19 mi	93 min	NW 14	10.00 mi	Fair	62°F	45°F	55%	1015.2 hPa
Hollywood, North Perry Airport, FL	21 mi	36 min	NNW 16 G 19	10.00 mi	Mostly Cloudy	60°F	48°F	65%	1016.9 hPa

Link to 5 minute data for KMIA

Wind History from MIA (wind in knots)

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

6 PM

Last 24hr

NW14 G21

NW12 G21

NW13 G27

N14 G19

NW12 G26

NW13 G25

NW9 G20

NW10 G17

NW12 G18

NW12 G17

NW11 G21

NW14 G21

NW10 G16

NW8 G17

NW9 G17

NW9 G17

W7 G19

NW9

NW12 G20

NW13 G22

NW12 G18

NW11 G17

NW9 G16

NW8

1 day ago

NW9

N6

5

N8

N4

N4

N8

NW9

NW6

N6

NW6 G14

NW8

NW7

N9 G14

NW7

NW9

NW8

NW10 G16

NW12 G19

NW14 G20

NW11 G20

NW10 G19

NW12 G20

NW13 G21

2 days ago

S4

S5

SW4

W3

SW4

W4

Calm

Calm

Calm

W3

W4

NW4

NW4

5

N8

6

4

NW10

N10

NW10 G14

NW8

NW10 G14

NW6

NW8

---

Tide / Current Tables for Key Biscayne Yacht Club, Biscayne Bay, Florida

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

Tide / Current Tables for Miami Harbor Entrance, Florida Current

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

GEOS Local Image of    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

---

Wind Forecast for Miami-South Florida, FL (18,4,5,8)

      (on/off)   Help

---

Ground Weather Radar Station Miami, FL

   (on/off)   Help

---

Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.