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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 6:58AM | Sunset 5:33PM | Saturday December 15, 2018 12:34 AM EST (05:34 UTC) | Moonrise 12:49PM | Moonset 12:00AM | Illumination 51% |  |
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- 1020 Pm Est Fri Dec 14 2018
.small craft should exercise caution...
Rest of tonight..South winds 10 to 15 knots along the coast to south southeast 15 to 20 knots in the gulf stream. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms after midnight.
Saturday..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a light chop. A chance of showers and Thunderstorms.
Saturday night..West southwest winds 5 to 10 knots becoming northwest after midnight. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop. A chance of Thunderstorms in the evening. A chance of showers through the night. A slight chance of Thunderstorms after midnight.
Sunday..North northwest winds 5 to 10 knots. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop. A slight chance of showers in the morning.
Sunday night and Monday..North winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters a light chop.
Monday night..North winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop.
Tuesday..Northeast winds around 5 knots. Seas around 2 feet. Intracoastal waters smooth.
Tuesday night and Wednesday..East winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop.
.small craft should exercise caution...
Rest of tonight..South winds 10 to 15 knots along the coast to south southeast 15 to 20 knots in the gulf stream. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms after midnight.
Saturday..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a light chop. A chance of showers and Thunderstorms.
Saturday night..West southwest winds 5 to 10 knots becoming northwest after midnight. Seas around 2 feet. Period 4 seconds. Intracoastal waters a light chop. A chance of Thunderstorms in the evening. A chance of showers through the night. A slight chance of Thunderstorms after midnight.
Sunday..North northwest winds 5 to 10 knots. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a light chop. A slight chance of showers in the morning.
Sunday night and Monday..North winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters a light chop.
Monday night..North winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop.
Tuesday..Northeast winds around 5 knots. Seas around 2 feet. Intracoastal waters smooth.
Tuesday night and Wednesday..East 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- 1020 Pm Est Fri Dec 14 2018
Synopsis..Southerly flow will become southwesterly towards daybreak as a cold front moves into the region, bringing cautionary conditions into Saturday. A band of showers and storms will continue to move into the gulf waters overnight, reaching the atlantic waters early Saturday morning. Showers and storms will be possible through the day Saturday, diminishing late day as the front exits the region. Improving conditions are expected on Sunday as winds winds become northwest behind the front.
Gulf stream hazards..South-southeast winds 15 to 20 knots becoming south-southwest towards daybreak. The approximate location of the west wall of the gulf stream as of dec 13, 2018 at 1200 utc... 3 nautical miles southeast of fowey rocks. 7 nautical miles east of port everglades. 5 nautical miles east northeast of lake worth. 6 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.
Synopsis..Southerly flow will become southwesterly towards daybreak as a cold front moves into the region, bringing cautionary conditions into Saturday. A band of showers and storms will continue to move into the gulf waters overnight, reaching the atlantic waters early Saturday morning. Showers and storms will be possible through the day Saturday, diminishing late day as the front exits the region. Improving conditions are expected on Sunday as winds winds become northwest behind the front.
Gulf stream hazards..South-southeast winds 15 to 20 knots becoming south-southwest towards daybreak. The approximate location of the west wall of the gulf stream as of dec 13, 2018 at 1200 utc... 3 nautical miles southeast of fowey rocks. 7 nautical miles east of port everglades. 5 nautical miles east northeast of lake worth. 6 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near Key Biscayne village, FL
Hourly EDIT Helplocation: 25.7, -80.17 debug
Area Discussion for - Miami-South Florida, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kmfl 150024 afdmfl area forecast discussion national weather service miami fl 724 pm est Fri dec 14 2018 Aviation Main concern through TAF cycle will be approaching frontal boundary. Current timing has it reaching kapf 07z-08z and east coast 10z- 12z as it breaks apart. All locations may see additional -shra ahead of this line. Tsra threat looks minimal at this time, so have kept vcsh. Slow movement will keep -shra in vcnty through taf cycle. Sse winds 8-12kts overnight, becoming ssw with pre-frontal boundary, gusty SW after 16z tomorrow. Update A few anticipated changes with this evenings update. Mainly to back off pops this evening. The front is slow moving and no significant showers are even close to south florida. The hrrr continues to show most of the activity holding off until 03-05z, or between 10pm and midnight est. So, dropped pops across the area, and even removed mention this evening for the east coast until after 03z, and even then it is only a slight chance. Kept chance pops for the east coast after 06z, although it may be closer to dawn before showers get near the atlantic coastal areas. The gulf coast has better chances earlier, as the front is approaching from the west. There is still the possibility of some general thunderstorms for the area through tomorrow evening as well. Prev discussion issued 352 pm est Fri dec 14 2018 discussion... big stories for the week are the cold fronts tonight and another at the end of the week. However, they do not look to bring as cold an air mass as the last front. The current setup starts with a 500mb and surface low are over louisiana, with a cold front nearing the western edge of the florida panhandle, stretching southward well into the gulf. Models are indicating the low will be fairly slow moving, moving over alabama by around 03z, or 10pm est, tonight, and the cold front still not through the tallahassee area. There also appears to be a pre frontal surface trough that is well ahead of the main front. This trough is what may initiate some stronger showers and storms over central florida. There is also a 250mb jet that may be helping to amplify convection in central florida. However, these dynamics should stay well north of south florida, keeping us fairly quiet for this evening and mainly showers and some general thunderstorms over night. Looking at the hrrr, convection may not even make it into the western lake region until are dawn. There may also be a few showers over the atlantic waters, and possibly the atlantic coast. Most likely the forecast is too aggressive with pops this evening, even though it is lower than the model guidance. Would not be surprised if the overnight hours are mostly dry. So confidence, even in the short term is pretty low. That said, only brought low end chance pops over the the eastern south florida area late this evening. Would not be surprised if evening updates backed off on these numbers. The front itself will creep across the area through the day tomorrow, and should be exiting the atlantic coast sometime in the late afternoon hours. This would keep chances for showers and thunderstorms in the forecast for the day tomorrow. Behind the front, high pressure is forecast to build in for tomorrow night into Sunday. The cooler air mass will take its time moving into the area. Highs on Sunday are forecast to be somewhat cooler, in the 70s across the area. Lows Sunday look to |
be around 10 degrees f cooler than Saturday morning. By Monday, the cooler air advects in and lows across the region will range from the upper 40s in the western lake region, to the upper 50s for the gulf coast, to around 60 along the atlantic coast. The western miami to palm beach metro areas are forecast in the upper 50s. The dry air will take a little longer to move in, not significantly dropping until Monday, when they are forecast to be in the 50s. The coolest day looks to be Monday, then a gradual warming trend for the middle of the week, under high pressure. At least until late Wednesday night, into Thursday morning. Overnight Wednesday, a 500mb trough moves off the texas coast. Ahead of it, the models are indicating some cyclogenesis over the the western gulf. Models are hinting it may interact with the frontal boundary, from tomorrows cold front, which looks to stall over cuba, and stretch well back towards southern texas. The developing system should lift this front to the north, as a warm front on Wednesday night spreading showers well out ahead of it. As this system develops over the gulf, there is a second system over the hudson bay in canada. This system is associated with a much strong upper level low that will absorb the southern system. As it does, the system becomes an extended cold front stretching from new england down to cuba. This system looks to likely bring just another round of mainly showers to the area at this time, although some thunderstorms may need to be added in as it gets closer in time. This front is currently progged to move more quickly and exit south florida by next Saturday morning. Marine... a cold front is forecast to slowly move through the area from tonight through tomorrow night. This will shift the wind to the northeast by Sunday morning. However, the wind is not forecast to be above any advisory criteria, or even enough to build seas above 5 feet in the offshore gulf waters of south florida. For the atlantic seas are only forecast to build to around 3 feet in the gulf stream on Sunday. So, while small craft should exercise caution, no advisory will be issued at this time for tonight or tomorrow, and the current advisory will be cancelled with this update. Behind this front, high pressure is forecast to build over the area, with cooler temperatures for the beginning to the middle of the week. Also, the high risk of rip currents will be allowed to expire this evening, as the wind is forecast to become more southerly overnight, and persist out of the south most of tomorrow. This would likely induce more of a longshore current, which would help to lessen the risk of rip currents. Preliminary point temps pops West palm beach 73 81 61 74 40 60 40 10 fort lauderdale 73 82 65 76 50 50 50 10 miami 74 81 66 75 50 40 40 10 naples 72 76 64 75 70 50 10 0 Mfl watches warnings advisories Fl... High rip current risk until 7 pm est this evening for flz168-172- 173. Am... None. Gm... None. Update... 13 aviation... 88 alm |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapWind History for Virginia Key, FL
(wind in knots) EDIT (on/off) Help| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | |
| Last 24hr | SE | E | SE G15 | SE G14 | SE G15 | SE G15 | SE G16 | SE G17 | SE G17 | SE G14 | SE G17 | SE G16 | SE G16 | SE G15 | SE | SE | SE | SE | SE | SE | SE G11 | SE G12 | SE G11 | SE G13 |
| 1 day ago | E G16 | E G16 | E G11 | SE G14 | SE | E | E | E | E G15 | E G15 | E G15 | E G12 | E G12 | E G15 | SE G15 | SE G14 | SE | SE | SE G11 | SE | SE | SE G11 | SE G15 | SE G14 |
| 2 days ago | NW G15 | NW G11 | NW G13 | NW G12 | NW G10 | N G7 | NW G9 | NE G14 | NE | NE G17 | E G13 | E G16 | E G14 | E G12 | NE G12 | E G13 | E | E G14 | E G18 | E G16 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Miami, Miami International Airport, FL | 10 mi | 41 min | SSE 7 | 10.00 mi | Mostly Cloudy | 76°F | 73°F | 94% | 1017.2 hPa |
| Miami, Kendall-Tamiami Executive Airport, FL | 14 mi | 41 min | SSE 6 | 10.00 mi | A Few Clouds | 76°F | 72°F | 88% | 1016.8 hPa |
| Miami, Opa Locka Airport, FL | 16 mi | 41 min | SSE 9 | 10.00 mi | A Few Clouds | 76°F | 73°F | 91% | 1017.2 hPa |
| Homestead Air Reserve Base, FL | 19 mi | 98 min | SSE 4 | 10.00 mi | Fair | 75°F | 72°F | 92% | 1017.2 hPa |
| Hollywood, North Perry Airport, FL | 21 mi | 41 min | SSE 7 | 10.00 mi | Fair | 76°F | 71°F | 85% | 1017.2 hPa |
Wind History from MIA (wind in knots)
| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | |
| Last 24hr | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE G22 | SE G21 | SE G24 | SE G26 | S G21 | SE G23 | S G22 | SE G15 | SE G15 | SE | SE | SE | SE | SE | S |
| 1 day ago | E | SE | E | SE | SE | SE | NE | Calm | E | E | E | E | E | SE | SE G20 | SE | SE | SE | SE | SE | SE | SE | SE | SE |
| 2 days ago | NW | NW | N | NW | N | N | N | N | N | N | E | NE | NE | NE | NE | E | E | E | E | E | E | E | E |
Tide / Current Tables for Key Biscayne Yacht Club, Biscayne Bay, Florida
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataKey Biscayne Yacht Club
Click for Map
Sat -- 02:35 AM EST 1.82 feet High Tide
Sat -- 06:49 AM EST First Quarter
Sat -- 06:59 AM EST Sunrise
Sat -- 09:10 AM EST 0.57 feet Low Tide
Sat -- 12:48 PM EST Moonrise
Sat -- 02:58 PM EST 1.94 feet High Tide
Sat -- 05:32 PM EST Sunset
Sat -- 09:48 PM EST 0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 02:35 AM EST 1.82 feet High Tide
Sat -- 06:49 AM EST First Quarter
Sat -- 06:59 AM EST Sunrise
Sat -- 09:10 AM EST 0.57 feet Low Tide
Sat -- 12:48 PM EST Moonrise
Sat -- 02:58 PM EST 1.94 feet High Tide
Sat -- 05:32 PM EST Sunset
Sat -- 09:48 PM EST 0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 1.3 | 1.6 | 1.8 | 1.8 | 1.7 | 1.5 | 1.2 | 0.9 | 0.7 | 0.6 | 0.6 | 0.9 | 1.2 | 1.6 | 1.8 | 1.9 | 1.9 | 1.6 | 1.3 | 1 | 0.7 | 0.5 | 0.5 | 0.6 |
Tide / Current Tables for Miami Harbor Entrance, Florida Current
EDIT (on/off) Help One Week of DataMiami Harbor Entrance
Click for Map
Sat -- 03:01 AM EST -0.00 knots Slack
Sat -- 04:55 AM EST -0.91 knots Max Ebb
Sat -- 06:49 AM EST First Quarter
Sat -- 06:59 AM EST Sunrise
Sat -- 09:15 AM EST 0.00 knots Slack
Sat -- 11:29 AM EST 1.54 knots Max Flood
Sat -- 12:48 PM EST Moonrise
Sat -- 03:23 PM EST -0.00 knots Slack
Sat -- 05:25 PM EST -1.00 knots Max Ebb
Sat -- 05:31 PM EST Sunset
Sat -- 09:47 PM EST 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 03:01 AM EST -0.00 knots Slack
Sat -- 04:55 AM EST -0.91 knots Max Ebb
Sat -- 06:49 AM EST First Quarter
Sat -- 06:59 AM EST Sunrise
Sat -- 09:15 AM EST 0.00 knots Slack
Sat -- 11:29 AM EST 1.54 knots Max Flood
Sat -- 12:48 PM EST Moonrise
Sat -- 03:23 PM EST -0.00 knots Slack
Sat -- 05:25 PM EST -1.00 knots Max Ebb
Sat -- 05:31 PM EST Sunset
Sat -- 09:47 PM EST 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 1.4 | 1.2 | 0.8 | 0 | -0.7 | -0.9 | -0.8 | -0.7 | -0.6 | -0.2 | 0.7 | 1.5 | 1.5 | 1.3 | 1 | 0.4 | -0.5 | -1 | -1 | -0.9 | -0.9 | -0.6 | 0.2 | 1.2 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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 (0,6,7,8)
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Ground Weather Radar Station Miami, FL
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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 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. |