Tuesday, December10, 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 6:55AMSunset 5:31PM Tuesday December 10, 2019 6:41 PM EST (23:41 UTC) Moonrise 4:33PMMoonset 5:17AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 229 Pm Est Tue Dec 10 2019
.small craft should exercise caution...
Tonight..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a moderate chop. Chance of showers.
Wednesday..East southeast winds 5 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a moderate chop. Chance of showers and Thunderstorms.
Wednesday night..East northeast winds 5 to 15 knots along the coast to east 10 to 15 knots in the gulf stream. Seas 2 to 3 feet. Period 3 seconds. Intracoastal waters a moderate chop. Showers and Thunderstorms likely in the evening, then chance of showers and Thunderstorms after midnight.
Thursday..East winds 10 to 15 knots. Along the coast, seas 2 to 3 feet. In the gulf stream, seas 2 to 3 feet building to 3 to 5 feet with occasional seas to 6 feet in the afternoon. Period 4 seconds. Intracoastal waters a moderate chop. Chance of showers and Thunderstorms.
Thursday night..East winds 10 to 15 knots along the coast to east 10 to 20 knots in the gulf stream. Seas 3 to 5 feet with occasional seas to 6 feet along the coast and 5 to 7 feet with occasional to 9 feet in the gulf stream. North northeast swell 3 feet after midnight. Intracoastal waters choppy in exposed areas. Slight chance of showers and Thunderstorms.
Friday..South southeast winds 5 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet along the coast and 5 to 7 feet with occasional to 9 feet in the gulf stream. North northeast swell around 3 feet. Intracoastal waters a light chop. Chance of showers and Thunderstorms.
Friday night..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Intracoastal waters a light chop. Chance of showers and Thunderstorms.
Saturday..Southwest winds around 10 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal waters a light chop. Chance of showers and Thunderstorms in the morning, then slight chance of showers and Thunderstorms in the afternoon.
Saturday night..Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters a light chop.
Sunday..North northeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop.
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- 229 Pm Est Tue Dec 10 2019
Synopsis.. Generally benign boating conditions expected through Wednesday. Conditions deteriorate across the atlantic waters Thursday as northeasterly swell from a deepening low off the conus east coast arrives to our local waters. This swell will cause wave heights to increase to between 6 and 9 feet, with the highest in the gulf stream. The influence from the swell is short-lived, and benign marine conditions are expected for the weekend and into early next week.
Gulf stream hazards..Increasing waves and swell Thursday and Friday. The approximate location of the west wall of the gulf stream as of dec 10, 2019 at 1200 utc... 19 nautical miles east northeast of fowey rocks. 20 nautical miles east northeast of port everglades. 15 nautical miles east of lake worth. 19 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 102006 AFDMFL

Area Forecast Discussion National Weather Service Miami FL Issued by National Weather Service Tampa Bay Ruskin FL 306 PM EST Tue Dec 10 2019

Short Term. Generally quiet and warm conditions continue through this evening across south Florida. Still a slight chance of an evening shower up toward Glades county, however, the lack of robust cumulus development so far this afternoon as we reach peak heating suggests chances have decreased for convergence in this area to overcome the subsidence inversion cap aloft.

Will be watching the approach of a cold front into the state later tonight and during the day on Wednesday. The front makes good progress into central Florida and then is progged to slow significantly and become more diffuse as it get closer to our area. At this point, a clean frontal passage appears unlikely for our region . meaning we will not see a significant cool-down or significant drying of our dewpoint this week. With the front approaching tomorrow and then stalling, our chances for scattered showers tomorrow and Thursday will greater, but still not a situation where a washout forecast is expected.

Long Term. A significant amplification to the upper pattern is expected to evolve into the eastern half of the CONUS during Friday, which will set up our next potential cold frontal passage. Energy rounding this larger eastern trough on Friday looks to force surface cyclogenesis in the NE Gulf of Mexico that will quickly organize, but also quickly eject to the northeast along the Atlantic seaboard. If the current projections by most of the global guidance holds . the greatest potential for organized rainfall/convection would stay to our north. Subtle height falls and the eventual frontal passage during Saturday should support at least a broken band of showers/storms reaching south Florida, but a significant rainfall or storm threat appears unlikely.

Marine. Generally benign boating conditions expected through Wednesday. Conditions deteriorate across the Atlantic waters Thursday as northeasterly swell from a deepening low off the CONUS East Coast arrives to our local waters. This swell will cause wave heights to increase to between 6 and 9 feet, with the highest in the Gulf Stream. The influence from the swell is short-lived, and benign marine conditions are expected for the weekend and into early next week.

Aviation. General VFR conditions through the afternoon or evening . with a few periods of brief MVFR along the east coast terminals through 20Z. Brisk 12-15kt winds from the southeast will slacken with sunset this evening . generally below 10kts. Lighter winds allow for some patchy fog after midnight . however . no significant visibility concerns at the forecast terminals themselves. Great concern for fog will be over inland areas through 13/14Z.

Beach Forecast. A high risk of rip currents remains in the forecast for the Palm Beaches through this evening . with a moderate risk forecast for the rest of the Atlantic beaches due to breezy southeasterly winds. Northeast swell will likely cause an increased rip current risk and rough surf for the Atlantic beaches, primarily the Palm Beaches, Thursday and Friday of this week.

Fire Weather. A cold front will move southward across the Florida peninsula . stalling near or just north of the region later Wednesday. The approach of the front will result in an increase in moisture and the potential for scattered showers and storms through the middle of the week. Relative humidity values will remain well above critical levels through the period . and not significant fire weather concerns are anticipated.

Patchy dense fog will be possible across portions of the interior both this morning and overnight and early Wednesday morning.

Preliminary Point Temps/PoPs. West Palm Beach 69 82 69 79 / 30 50 60 50 Fort Lauderdale 72 82 70 80 / 30 40 60 40 Miami 71 83 70 81 / 20 40 50 30 Naples 67 82 66 81 / 10 30 30 20

MFL WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk until 9 PM EST this evening for FLZ168.

AM . None. GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VAKF1 - 8723214 - Virginia Key, FL 4 mi78 min ESE 6 G 8.9 79°F 77°F1018.4 hPa
FWYF1 - Fowey Rocks, FL 14 mi42 min SE 14 G 15 79°F 78°F1018.9 hPa (+0.6)
PEGF1 21 mi78 min ESE 5.1 G 9.9 79°F 1018.9 hPa
MDKF1 37 mi102 min 78°F
HCEF1 - Highway Creek, FL 40 mi102 min 80°F
LSNF1 - Long Sound, FL 41 mi102 min 77°F
LBSF1 - Little Blackwater, FL 42 mi162 min 76°F
THRF1 42 mi162 min 75°F
JBYF1 44 mi102 min 76°F
BWSF1 - Blackwater Sound, FL 45 mi162 min 76°F
TCVF1 - Trout Cove, FL 45 mi162 min 79°F
DKKF1 - Duck Key, FL 46 mi162 min 76°F
TRRF1 - Taylor River, FL 47 mi102 min 77°F
BDVF1 - Broad River, FL 49 mi102 min 73°F
LMDF1 - Little Madeira, FL 49 mi102 min 78°F
CANF1 - Cane Patch, FL 49 mi102 min 71°F
WIWF1 - Willy Willy, FL 49 mi102 min 75°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Miami, Miami International Airport, FL7 mi49 minSE 710.00 miA Few Clouds79°F72°F79%1018.8 hPa
Miami, Opa Locka Airport, FL10 mi49 minSE 910.00 miA Few Clouds79°F73°F82%1019.1 hPa
Hollywood, North Perry Airport, FL15 mi49 minSE 410.00 miPartly Cloudy79°F73°F82%1019.2 hPa
Miami, Kendall-Tamiami Executive Airport, FL17 mi49 minSE 710.00 miFair79°F73°F85%1018.6 hPa
Fort Lauderdale/Hollywood International Airport, FL19 mi49 minSE 1110.00 miMostly Cloudy78°F73°F87%1018.6 hPa
Homestead Air Reserve Base, FL24 mi1.8 hrsESE 510.00 miA Few Clouds79°F73°F83%1018.3 hPa

Link to 5 minute data for KMIA

Wind History from MIA (wind in knots)
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Last 24hrE8E7E6E8E7E6E7E7E6E9SE4E7SE5SE7SE11SE14SE11
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1 day agoE9E9E8E6E5E5E6E4CalmCalmCalmCalmNE3CalmSE7E11E10E12E10E12E12E11E9E9
2 days agoNE3CalmN3N3N4N4CalmCalmCalmCalmN5CalmN4N3NE3E7E7E11NE11
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Tide / Current Tables for San Marino Island, Florida
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San Marino Island
Click for Map
Tue -- 01:22 AM EST     0.11 feet Low Tide
Tue -- 05:16 AM EST     Moonset
Tue -- 06:56 AM EST     Sunrise
Tue -- 07:44 AM EST     2.51 feet High Tide
Tue -- 01:52 PM EST     0.45 feet Low Tide
Tue -- 04:32 PM EST     Moonrise
Tue -- 05:30 PM EST     Sunset
Tue -- 07:43 PM EST     2.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.10.20.511.62.12.42.52.31.91.40.90.60.50.611.522.32.32.11.71.1

Tide / Current Tables for Miami Harbor Entrance, Florida Current
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Miami Harbor Entrance
Click for Map
Tue -- 01:55 AM EST     0.00 knots Slack
Tue -- 05:16 AM EST     Moonset
Tue -- 05:34 AM EST     1.99 knots Max Flood
Tue -- 06:56 AM EST     Sunrise
Tue -- 08:19 AM EST     -0.00 knots Slack
Tue -- 12:18 PM EST     -1.28 knots Max Ebb
Tue -- 02:26 PM EST     0.00 knots Slack
Tue -- 04:32 PM EST     Moonrise
Tue -- 05:29 PM EST     1.61 knots Max Flood
Tue -- 05:30 PM EST     Sunset
Tue -- 08:17 PM EST     -0.00 knots Slack
Tue -- 11:51 PM EST     -1.40 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.3-0.90.11.21.8221.40.4-0.6-1-1.1-1.3-1.2-0.50.61.41.61.61.30.3-0.7-1.2-1.4

Weather Map
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wmap_A
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)
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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.