Sunday, December8, 2019
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Marine Weather and Tides
Miami Beach, FL

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:53AMSunset 5:31PM Sunday December 8, 2019 1:04 AM EST (06:04 UTC) Moonrise 3:17PMMoonset 3:27AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 days in cycle
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.
Marine Forecasts
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AMZ651 Expires:201912081615;;018729 Fzus52 Kmfl 080332 Cwfmfl Coastal Waters Forecast For South Florida National Weather Service Miami Fl 1032 Pm Est Sat Dec 7 2019 Atlantic Coastal Waters From Jupiter Inlet To Ocean Reef Out To 60 Nm And Gulf Coastal Waters From East Cape Sable To Chokoloskee Out 20 Nm And Chokoloskee To Bonita Beach Out 60 Nm...including The Waters Of Biscayne Bay And Lake Okeechobee. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Amz650-651-670-671-081615- Coastal Waters From Jupiter Inlet To Deerfield Beach Fl Out 20 Nm- Coastal Waters From Deerfield Beach To Ocean Reef Fl Out 20 Nm- Waters From Jupiter Inlet To Deerfield Beach Fl From 20 To 60 Nm- Waters From Deerfield Beach To Ocean Reef Fl From 20 To 60 Nm Excluding The Territorial Waters Of Bahamas- 1032 Pm Est Sat Dec 7 2019
Rest of tonight..East northeast winds around 10 knots. Seas around 2 feet. Period 3 seconds. Intracoastal waters a light chop.
Sunday..East northeast winds around 10 knots. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop.
Sunday night..East winds 5 to 10 knots along the coast to east 10 to 15 knots in the gulf stream. Seas 2 to 3 feet along the coast and 3 to 5 feet with occasional to 6 feet in the gulf stream. Period 3 seconds increasing to 8 seconds after midnight. Intracoastal waters a moderate chop.
Monday..East southeast winds around 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 8 seconds. Intracoastal waters a light chop.
Monday night..Southeast winds 5 to 10 knots along the coast to southeast 10 to 15 knots in the gulf stream. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal waters a moderate chop. Slight chance of showers after midnight.
Tuesday..East southeast winds around 10 knots. Seas 2 to 3 feet. Intracoastal waters a light chop. Slight chance of showers.
Tuesday night..Southeast winds 5 to 10 knots along the coast to southeast 10 to 15 knots in the gulf stream. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Slight chance of showers in the evening, then chance of showers after midnight.
Wednesday..Southeast winds 5 to 10 knots along the coast to east southeast 5 to 10 knots in the gulf stream. Seas around 2 feet. Intracoastal waters a light chop. Chance of showers.
Wednesday night..East winds 5 to 15 knots. Seas around 2 feet. Intracoastal waters a moderate chop. Chance of showers.
Thursday..East winds 10 to 20 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal waters choppy in exposed areas. Chance of showers.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 1032 Pm Est Sat Dec 7 2019
Synopsis..North winds will continue to turn more easterly and occasionally become breezy through the weekend over the south florida waters. Seas will mainly be 2 feet or less, with only isolated sprinkles possible over the palm beach and broward county coastal waters for late tonight into Sunday morning. During early to middle parts of next week, the approach of a weather system from the west will correspond to a gradual increase in east to southeast winds. By the middle of next week, deteriorating marine conditions could materialize as winds and waves increase, while shower activity also has the potential to increase.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of dec 07, 2019 at 1200 utc... 9 nautical miles east of fowey rocks. 17 nautical miles east of port everglades. 15 nautical miles east northeast of lake worth. 17 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Miami Beach, FL
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location: 25.79, -80.16     debug


Area Discussion for - Miami-South Florida, FL
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FXUS62 KMFL 080327 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 1027 PM EST Sat Dec 7 2019

Update. Weak quasi stationary front just north of the CWA and associated cloudiness/moisture have resulted in increasing cloud cover particularly across the northern sections of the CWA. This should inhibit chances of fog formation inland despite light winds. Flow should remain light and variable overnight for the most part across the CWA as pressure gradient remains weak due to proximity of the boundary. Updated forecast to better reflect current wind trends and cloudiness overall. Other than that, no other changes were made. We currently have mention of sprinkles overnight across portions of Palm Beach but confidence remains very low that will materialize. Regardless no impact weather associated with that. But left it in forecast due to proximity of aforementioned boundary.

Prev Discussion. /issued 648 PM EST Sat Dec 7 2019/

Aviation . Generally VFR conditions are expected through Sunday, with light ene winds overnight turning more easterly 4-8 kts by late morning or early afternoon on Sunday at east coast sites and more southerly about same speed at APF. A few sprinkles with some ceilings particularly at PBI cannot be ruled out by sunday morning but they are expected to remain in VFR range. Confidence is very low in any (if any) related impacts at the TAF sites.

Prev Discussion . /issued 328 PM EST Sat Dec 7 2019/

Short Term .

Tonight through Sunday night .

Visible satellite loops indicate a well-defined cumulus-cloud line -- delineating an axis of convergence -- trailing south of a weak frontal wave located about 100 miles east of the east-central FL coast. The very modest theta-e contrast across this boundary highlights its characteristically weak baroclinicity, and this feature will undergo additional frontolysis through tonight.

The continued eastward elongation of surface ridging off the Mid- Atlantic coast -- beneath of a zone of broad differential anticyclonic vorticity advection aloft -- will correspond to low- level flow turning more easterly across the aforementioned boundary tonight. This will allow the boundary to edge toward the South Florida coast while becoming even more diffuse through late tonight. The combination of (1) subtle boundary-related ascent, (2) frictional convergence along the Atlantic coast associated with the increasing east-wind component, and (3) meager isentropic ascent, could support a few sprinkles late tonight into Sunday morning. Such activity should principally be confined to coastal and metro Palm Beach and perhaps Broward Counties, where the coastline shape maximizes the frictional convergence. The shallow/marginal nature of upward motion, and limited supply of moisture, preclude confidence in measurable precipitation.

Elsewhere, dry conditions are expected tonight, with low temperatures forecast to range from the middle 50s across western sections of interior South Florida to the 60s elsewhere. Nocturnal decoupling could yield a non-zero fog risk, especially over interior sections. However, the potential for clouds emanating from a persistent area of predominantly shallow convection over the eastern/middle Gulf could mute nocturnal radiational cooling -- limiting confidence in fog development.

Then for Sunday, diurnally increasing vertical mixing over inland areas will encourage the suppression of east-coast-vicinity convergence, while low-level flow becomes predominantly easterly across the forecast area -- resulting in cessation of the potential for sprinkles by mid/late morning. With generally partly cloudy skies expected through the day, high temperatures on Sunday are forecast to be around to a degree or two above those of today/Saturday -- i.e., in the upper 70s to lower 80s on Sunday. Then for Sunday night, decreasing winds will accompany nocturnal decoupling amid a weak surface pressure gradient, with overnight low temperatures forecast to mostly be in the 60s. While fog cannot be ruled out, the potential for clouds, and the lack of more appreciable moisture return into an antecedently cool air mass, render limited predictability in the potential for fog.

Long Term .

Monday through Friday .

High pressure will remain in control of the weather across South Florida during the early portion of the week. A southeasterly wind flow will continue during this time frame as well. This will allow for warm pattern across the region as afternoon high temperatures will range from the lower 80s across across the east coast metro areas to the mid to upper 80s across the southwestern interior sections.

As the middle of the week approaches, both of the GFS and the ECMWF continue to show a mid level trough pushing across the eastern portion of the country. An area of low pressure in the northern Atlantic will have a cold front dragging south southwestward along with it. The latest computer model guidance shows this front getting into Northern Florida by Wednesday and then moving southeastward on Thursday. Winds during this time frame will remain out of the east southeast which will help to bring more moisture into the region as well. Chances of showers will start to increase beginning on Wednesday. An area of high pressure will be building into the Mid-Atlantic on Thursday, which will allow for an east northeast wind flow across South Florida along with an increase in speed moving into Thursday. With the breezy easterly flow in place, this will allow for the chance of showers remaining across the region through the end of the week.

Marine .

North winds will continue to turn more easterly and occasionally become breezy through the weekend over the South Florida waters. Seas will mainly be 2 feet or less, with only isolated sprinkles possible over the Palm Beach and Broward County coastal waters for late tonight into Sunday morning. During early to middle parts of next week, the approach of a weather system from the west will correspond to a gradual increase in east to southeast winds. By the middle of next week, deteriorating marine conditions could materialize as winds and waves increase, while shower activity also has the potential to increase.

Aviation .

Generally VFR conditions are expected through Sunday, with light winds gradually turning from primarily northerly to easterly. A few sprinkles cannot be ruled out in the vicinity of coastal Palm Beach and Broward Counties late tonight into Sunday morning, though confidence is very low in any related impacts at the TAF sites.

Beach Forecast .

Aside from the potential for a few sprinkles over the Palm Beach and Broward County beaches late tonight into Sunday morning, dry conditions are expected through the remainder of this weekend. For early to middle parts of next week, increasing onshore flow could foster an increasing elevated rip-current risk. Shower chances will also increase during the mid-week time frame.

Preliminary Point Temps/PoPs. West Palm Beach 65 78 66 81 / 10 10 10 10 Fort Lauderdale 67 78 68 80 / 10 10 10 10 Miami 66 80 68 81 / 10 10 10 10 Naples 61 79 63 81 / 0 10 0 0

MFL WATCHES/WARNINGS/ADVISORIES. FL . None. AM . None. GM . None.

Update . 52/PS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VAKF1 - 8723214 - Virginia Key, FL 4 mi53 min N 1.9 G 4.1 73°F 75°F1019.8 hPa
FWYF1 - Fowey Rocks, FL 14 mi65 min E 8 G 8.9 75°F 77°F1020.3 hPa (+0.0)
PEGF1 21 mi59 min NNW 6 G 8 71°F 1020.3 hPa
MDKF1 37 mi65 min 72°F
HCEF1 - Highway Creek, FL 40 mi65 min 74°F
LSNF1 - Long Sound, FL 41 mi65 min 72°F
LBSF1 - Little Blackwater, FL 42 mi125 min 71°F
THRF1 42 mi125 min 71°F
JBYF1 44 mi65 min 71°F
BWSF1 - Blackwater Sound, FL 45 mi125 min 73°F
TCVF1 - Trout Cove, FL 45 mi125 min 75°F
DKKF1 - Duck Key, FL 46 mi125 min 70°F
TRRF1 - Taylor River, FL 47 mi65 min 71°F
BDVF1 - Broad River, FL 49 mi65 min 69°F
LMDF1 - Little Madeira, FL 49 mi65 min 72°F
CANF1 - Cane Patch, FL 49 mi65 min 67°F
WIWF1 - Willy Willy, FL 49 mi65 min 68°F

Wind History for Virginia Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Miami, Miami International Airport, FL7 mi72 minN 410.00 miPartly Cloudy69°F57°F68%1020.4 hPa
Miami, Opa Locka Airport, FL10 mi72 minNNW 310.00 miMostly Cloudy67°F60°F79%1020.7 hPa
Hollywood, North Perry Airport, FL15 mi72 minN 410.00 miFair66°F57°F73%1020.8 hPa
Miami, Kendall-Tamiami Executive Airport, FL17 mi72 minW 49.00 miFair61°F60°F97%1020.4 hPa
Fort Lauderdale/Hollywood International Airport, FL19 mi72 minN 510.00 miPartly Cloudy65°F57°F76%1020.1 hPa
Homestead Air Reserve Base, FL24 mi69 minWNW 310.00 miFair64°F59°F87%1020.3 hPa

Link to 5 minute data for KMIA

Wind History from MIA (wind in knots)
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Last 24hrW3CalmCalmNW3NW3N3CalmN4N3NW4CalmNE6NE5E8E8NE5E5NE3CalmN3N3N4N4Calm
1 day agoN4N4N5N4N3N3N4N6NE4SE4E8SE6E8SE8S5SE7SE5SE3S3SE4CalmCalmNW3W3
2 days agoCalmNW3NW5N3N4N4NE3N5N6N75N7NW6N7N6NE6N3NW5NW3NW3NW4NW4CalmCalm

Tide / Current Tables for San Marino Island, Florida
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San Marino Island
Click for Map
Sun -- 12:00 AM EST     0.38 feet Low Tide
Sun -- 03:27 AM EST     Moonset
Sun -- 06:20 AM EST     2.30 feet High Tide
Sun -- 06:55 AM EST     Sunrise
Sun -- 12:27 PM EST     0.61 feet Low Tide
Sun -- 03:16 PM EST     Moonrise
Sun -- 05:29 PM EST     Sunset
Sun -- 06:22 PM EST     2.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.50.81.31.72.12.32.221.61.20.80.60.60.91.21.722.22.21.91.510.6

Tide / Current Tables for Miami Harbor Entrance, Florida Current
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Miami Harbor Entrance
Click for Map
Sun -- 12:23 AM EST     0.00 knots Slack
Sun -- 03:27 AM EST     Moonset
Sun -- 04:11 AM EST     1.69 knots Max Flood
Sun -- 06:53 AM EST     -0.00 knots Slack
Sun -- 06:54 AM EST     Sunrise
Sun -- 10:52 AM EST     -1.11 knots Max Ebb
Sun -- 12:53 PM EST     0.00 knots Slack
Sun -- 03:16 PM EST     Moonrise
Sun -- 04:28 PM EST     1.43 knots Max Flood
Sun -- 05:29 PM EST     Sunset
Sun -- 06:53 PM EST     -0.00 knots Slack
Sun -- 10:55 PM EST     -1.23 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.40.61.41.61.71.50.8-0.1-0.6-0.9-1-1.1-0.80.111.31.41.40.8-0.1-0.8-1.1-1.2-1.2

Weather Map
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wmap_A
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
Wind Forecast for Miami-South Florida, FL (1,6,7,8)
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Ground Weather Radar Station Miami, FL
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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 numerious 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.