Wednesday, July15, 2020
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Marine Weather and Tides
Fort Lauderdale, 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 6:37AMSunset 8:16PM Wednesday July 15, 2020 5:50 AM EDT (09:50 UTC) Moonrise 1:27AMMoonset 2:50PM Illumination 25% Phase: Waning Crescent; Moon at 25 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 Coastal Waters From Deerfield Beach To Ocean Reef Fl Out 20 Nm- Waters From Deerfield Beach To Ocean Reef Fl From 20 To 60 Nm Excluding The Territorial Waters Of Bahamas- 344 Am Edt Wed Jul 15 2020
Today..East northeast winds 10 knots. Seas less than 2 feet. Period 3 seconds. Intracoastal waters a light chop. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tonight..East winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Intracoastal waters a light chop. Chance of showers and slight chance of Thunderstorms.
Thursday..East northeast winds 10 to 15 knots. Seas around 2 feet. Period 3 seconds. Intracoastal waters a moderate chop. Chance of showers and slight chance of Thunderstorms.
Thursday night..East winds 10 to 15 knots. Seas 2 to 3 feet. Period 3 seconds. Intracoastal waters a moderate chop. Slight chance of Thunderstorms in the evening. Chance of showers through the night. Chance of Thunderstorms after midnight.
Friday through Sunday..East winds 10 to 15 knots with gusts to around 20 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Showers likely and chance of Thunderstorms.
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- 344 Am Edt Wed Jul 15 2020
Synopsis..A weak wind flow will continue across the local waters today, however, the winds will start to shift around to more of an easterly flow as the day progresses. The easterly flow will increase by the end of the week across the atlantic and gulf coastal waters. Scattered showers and Thunderstorms will be possible each day, however, chances of showers and Thunderstorms will increase by the end of the week and into the upcoming weekend as a tropical wave approaches the region.
Gulf stream hazards..Winds and waves could be locally higher in and around any shower or Thunderstorm. Waterspouts are also possible in any shower or Thunderstorm. The approximate location of the west wall of the gulf stream as of jul 14, 2020 at 1200 utc... 7 nautical miles east northeast of fowey rocks. 11 nautical miles east southeast of port everglades. 6 nautical miles east of lake worth. 8 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Fort Lauderdale, FL
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location: 26.13, -80.12     debug


Area Discussion for - Miami-South Florida, FL
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FXUS62 KMFL 150741 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 341 AM EDT Wed Jul 15 2020

Short Term (Today through Thursday). An area of high pressure will continue to build over the region and strengthen as it does so. Winds will start to shift around to more of an easterly direction today, however, the wind flow will still be rather weak. This will allow for the east and west coast sea breezes to develop and push inland. Scattered showers and thunderstorms will develop along the sea breezes as they push inland. The greatest chances of shower and thunderstorm development will shift towards the interior and west this afternoon and this evening as more of an easterly flow begins to develop. Hot temperatures will also continue due to the light wind flow that will remain in place. High temperatures will range from the lower 90s across the east coast to the upper 90s across the interior sections. Heat indices will continue to rise into the triple digits today across South Florida.

On Thursday, the latest computer model guidance shows the easterly flow beginning to strengthen and some deeper tropical moisture will start to work into the region from the Bahamas. Shower and thunderstorm development on Thursday will continue to be sea breeze driven, however, the coverage will begin to increase. The greatest chances of showers and thunderstorms will continue to be across the interior and west coast during the afternoon and evening hours. High temperatures on Thursday will range from around 90 across the east coast to the mid 90s across the interior sections.

Long Term. Thursday night through Tuesday night .

The models are in fairly good agreement with the pattern through the period. At 500mb there is a strong, elongated ridge of high pressure over most of the southern half of the Unites States, keeping any mid latitude systems from having much of an affect on the weather in South Florida.

Beginning Thursday night, a surface high, which had been north of Maine, begins to gradually build to the southeast over the central Atlantic, basically blocking any moisture from moving north. The blocking first begins over the western Atlantic, then the entire Atlantic, from Africa, all the way over to Florida. This high keeps tropical moisture to the south, and begins to stream across the area by late Friday. This pattern remains in place for an extended time, not allowing for any significant change in the day to day forecast for the CWA. So basically, PoPs and chances of thunderstorms begin to climb by Friday afternoon, with widespread coverage of showers each day through at least Tuesday. Given the abundance of cloud cover that will also likely result, have kept chances of thunderstorms down to the chance category for now, as there is some uncertainty in how unstable the atmosphere will be, and how much insolation will occur each day. If we are able to start out relatively sunny for the morning hours, it will increase the chances for thunderstorms. However, persistent cloud cover may hinder thunderstorm development, as well as any sea breeze development. Another factor may be the 500mb temperatures, which the ECMWF is around -6C to -7.5C, and the GFS is a tad cooler with -7.5C to -8C through the weekend, then warming to around -6C. So, the period will have conditional instability, leading to uncertainty in the forecast. Not so much if it will rain or not, but how widespread and how much coverage of thunderstorms for the area. This also leas to the uncertainty as to how much rain, and how strong any thunderstorms will be. Currently the more likely scenario is some hydrologic concerns, if any training or backbuilding occurs, or if areas just keep getting rain day after day, it could cause some flooding concerns through the beginning of the week. The lower potential, but non zero, would be strong to severe thunderstorms. If the 500mb temps are on the cooler side, and some diurnal heating occurs, along with a sea breeze, there could be some stronger thunderstorms around. So, can not rule that possibility out yet.


Marine. A weak wind flow will continue across the local waters today, however, the winds will start to shift around to more of an easterly flow as the day progresses. The easterly flow will increase by the end of the week across the Atlantic and Gulf coastal waters. Scattered showers and thunderstorms will be possible each day, however, chances of showers and thunderstorms will increase by the end of the week and into the upcoming weekend as a tropical wave approaches the region.

Aviation. VFR conditions will prevail throughout the forecast period. Light and variable winds overnight will increase out of the southeast to around 10 knots later this morning. Scattered showers and thunderstorms will develop along the east and west coast sea breezes with the greatest chances of thunderstorms across the interior. At KAPF, winds will shift around to the southwest in the afternoon as the west coast sea breeze moves through.

Preliminary Point Temps/PoPs. West Palm Beach 91 78 90 78 / 30 30 40 30 Fort Lauderdale 91 80 89 79 / 30 40 50 40 Miami 93 79 90 79 / 40 40 50 40 Naples 93 76 93 76 / 50 30 60 20

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

Marine . 55/CWC Aviation . 55/CWC Short Term . 55/CWC Long Term . 13


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VAKF1 - 8723214 - Virginia Key, FL 28 mi51 min 90°F
LKWF1 - 8722670 - Lake Worth, FL 34 mi69 min 86°F
FWYF1 - Fowey Rocks, FL 37 mi51 min W 2.9 G 2.9 84°F 86°F1016.8 hPa (-0.6)

Wind History for Virginia Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Lauderdale/Hollywood International Airport, FL4 mi58 minN 010.00 miFair80°F73°F82%1016.1 hPa
Fort Lauderdale, Fort Lauderdale Executive Airport, FL6 mi58 minN 010.00 miFair78°F75°F93%1016.5 hPa
Pompano Beach, Pompano Beach Airpark, FL8 mi58 minN 010.00 miFair76°F75°F100%1016.4 hPa
Hollywood, North Perry Airport, FL11 mi58 minN 010.00 miFair0°F0°F%1017 hPa
Miami, Opa Locka Airport, FL17 mi58 minN 010.00 miFair80°F72°F76%1016.7 hPa
Miami, Miami International Airport, FL23 mi58 minN 010.00 miPartly Cloudy82°F75°F79%1016.5 hPa

Link to 5 minute data for KFLL

Wind History from FLL (wind in knots)
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Last 24hrSW3S3CalmW43W5W34SE11SE11SE11SE13S11--CalmE4S4NW4N4CalmCalmCalmCalmCalm
1 day agoS5SW3SW5SW8SW9SW7NW15
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2 days agoSW3S3SW5SW10SW11SW12SW18
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Tide / Current Tables for Bahía Mar Yacht Club, Fort Lauderdale, Florida
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Bahía Mar Yacht Club
Click for Map
Wed -- 02:26 AM EDT     Moonrise
Wed -- 04:47 AM EDT     2.05 feet High Tide
Wed -- 06:38 AM EDT     Sunrise
Wed -- 11:30 AM EDT     0.17 feet Low Tide
Wed -- 03:50 PM EDT     Moonset
Wed -- 05:41 PM EDT     2.17 feet High Tide
Wed -- 08:14 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.711.31.7221.91.61.20.80.40.20.20.40.91.41.82.12.221.71.310.7

Tide / Current Tables for Hollywood Beach, West Lake, north end, Florida
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Hollywood Beach
Click for Map
Wed -- 12:18 AM EDT     0.55 feet Low Tide
Wed -- 02:26 AM EDT     Moonrise
Wed -- 06:00 AM EDT     1.65 feet High Tide
Wed -- 06:38 AM EDT     Sunrise
Wed -- 12:39 PM EDT     0.15 feet Low Tide
Wed -- 03:50 PM EDT     Moonset
Wed -- 06:54 PM EDT     1.75 feet High Tide
Wed -- 08:14 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.811.31.61.61.61.310.70.40.20.20.30.611.41.71.71.71.41.10.9

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 (5,6,7,8)
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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 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.