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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 6:53AM | Sunset 7:46PM | Thursday April 18, 2019 9:15 AM EDT (13:15 UTC) | Moonrise 6:10PM | Moonset 5:33AM | Illumination 99% |  |
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- 314 Am Edt Thu Apr 18 2019
Today..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a moderate chop.
Tonight..Southeast winds 10 to 20 knots with gusts to around 30 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Period 5 seconds. Intracoastal waters choppy in exposed areas. Chance of showers and Thunderstorms after midnight.
Friday..South winds 15 to 25 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 6 seconds. Intracoastal waters a moderate chop. Chance of showers in the morning. Chance of Thunderstorms. Showers likely in the afternoon.
Friday night..Along the coast, south southwest winds 15 to 20 knots in the evening. Winds west 10 to 20 knots after midnight. In the gulf stream, south southwest winds 20 to 25 knots in the evening. Seas 2 to 4 feet with occasional seas to 5 feet along the coast and 3 to 5 feet with occasional to 6 feet in the gulf stream. Period 5 seconds. Intracoastal waters a moderate chop. Thunderstorms in the evening. Showers through the night. Chance of Thunderstorms after midnight.
Saturday..West winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Intracoastal waters a light chop. Chance of showers in the morning.
Saturday night..North northwest winds 10 to 15 knots. Seas around 2 feet along the coast and 2 to 4 feet with occasional to 5 feet in the gulf stream. Intracoastal waters a light chop.
Sunday through Monday..East northeast winds 10 to 15 knots. Seas around 2 feet along the coast and 2 to 4 feet with occasional to 5 feet in the gulf stream. Intracoastal waters a moderate chop.
Today..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a moderate chop.
Tonight..Southeast winds 10 to 20 knots with gusts to around 30 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Period 5 seconds. Intracoastal waters choppy in exposed areas. Chance of showers and Thunderstorms after midnight.
Friday..South winds 15 to 25 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 6 seconds. Intracoastal waters a moderate chop. Chance of showers in the morning. Chance of Thunderstorms. Showers likely in the afternoon.
Friday night..Along the coast, south southwest winds 15 to 20 knots in the evening. Winds west 10 to 20 knots after midnight. In the gulf stream, south southwest winds 20 to 25 knots in the evening. Seas 2 to 4 feet with occasional seas to 5 feet along the coast and 3 to 5 feet with occasional to 6 feet in the gulf stream. Period 5 seconds. Intracoastal waters a moderate chop. Thunderstorms in the evening. Showers through the night. Chance of Thunderstorms after midnight.
Saturday..West winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Intracoastal waters a light chop. Chance of showers in the morning.
Saturday night..North northwest winds 10 to 15 knots. Seas around 2 feet along the coast and 2 to 4 feet with occasional to 5 feet in the gulf stream. Intracoastal waters a light chop.
Sunday through Monday..East northeast winds 10 to 15 knots. Seas around 2 feet along the coast and 2 to 4 feet with occasional to 5 feet in the gulf stream. Intracoastal waters a moderate 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- 314 Am Edt Thu Apr 18 2019
Synopsis.. Breezy e-se flow is expected today, likely reaching advisory levels late tonight into Friday for all waters with gusty s-ssw winds. Winds will then veer nw behind the front on Saturday. A small craft advisory for winds and waves will likely be needed for some portion of this period. Shower and Thunderstorm chances begin on Thursday while becoming likely on Friday into Friday night, with some stronger storms possible during this time.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of apr 18, 2019 at 1200 utc... 7 nautical miles east northeast of fowey rocks. 16 nautical miles east northeast of port everglades. 11 nautical miles east northeast of lake worth. 12 nautical miles northeast of jupiter inlet. This data courtesy of the naval oceanographic office.
Synopsis.. Breezy e-se flow is expected today, likely reaching advisory levels late tonight into Friday for all waters with gusty s-ssw winds. Winds will then veer nw behind the front on Saturday. A small craft advisory for winds and waves will likely be needed for some portion of this period. Shower and Thunderstorm chances begin on Thursday while becoming likely on Friday into Friday night, with some stronger storms possible during this time.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of apr 18, 2019 at 1200 utc... 7 nautical miles east northeast of fowey rocks. 16 nautical miles east northeast of port everglades. 11 nautical miles east northeast of lake worth. 12 nautical miles northeast 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 181126 afdmfl area forecast discussion national weather service miami fl 726 am edt Thu apr 18 2019 Aviation Vfr conditons will prevail across all TAF sites. Southeasterly wind flow will increase this afternoon becoming gusty at times. A few showers possible along the east coast this morning, but coverage low enough to leave out of TAF for now. For apf, SW flow will develop this afternoon with a gulf seabreeze developing. Tonight bkn mid level clouds develop and winds remain southeasterly around 10 kts. Prev discussion issued 330 am edt Thu apr 18 2019 discussion... today and tonight... surface and mid-level ridging will gradually shift into the western atlantic in response to a vigorously digging trough over the central conus. This will allow low-level winds to turn southeasterly and bring some low-level moisture poleward into our area. Shower chances will initially begin for the atlantic waters and east coast this morning, with the focus shifting inland towards the the interior this afternoon along the atlantic sea breeze. Temperatures will be on the warm side, with highs ranging from the mid 80s along the east coast to the lower 90s over the western interior. Shower chances should return tonight, and with plentiful cloud cover lows will mostly be in the 70s. Friday and Friday night... a meridional flow pattern evolves aloft as large-scale troughing encompasses much of the eastern conus. An associated maturing surface cyclone will develop northeastward along the appalachians, with the associated cold front sweeping through the central and southern florida peninsula late in the period. Deep ascent tied to increasing differential cyclonic vorticity advection and a mid-level jet MAX will maintain a squall line in advance of the surface front as it tracks across north and central florida during the afternoon to early evening hours. One of the big questions at this juncture is how far south into our area organized convection will be maintained as the better upper support begins pulling away on Friday evening. Dynamically, the pre-frontal environment appears supportive of strong to severe thunderstorms (especially from the lake okeechobee region north), given 0-3 km bulk shear values exceeding 40 kt and strong deep layer shear occurring in association with the mid- level speed max. Thermodynamically, things are a bit less impressive, given decreasing MLCAPE during the evening and only modest mid-level lapse rates. Given the increasingly veering wind profile and frontal forcing mechanism it appears that linear storm morphologies are favored during the afternoon and evening (in the form of a squall line), with some possibility for isolated to widely scattered storms developing out ahead of it during the morning to early afternoon hours. With regards to severe hazards, strong to damaging wind |
gusts appear the greatest threat, with a conditional tornado threat. The tornado threat is rather small, and would likely be dependent upon the early to mid-day storms interacting with sea- breezes or other locally generated vorticity sources. The main window for possible severe thunderstorms should be from mid afternoon through early evening, provided the isolated early day risk mentioned above does not materialize. The thunderstorm threat should be ending for all areas by mid to late evening as the line of storms pushes offshore into the atlantic waters. The SPC day 2 severe weather outlook is in line with this thinking, with a slight risk of severe thunderstorms over glades, northwest hendry, and far northwest collier counties, with a marginal risk across the remainder of south florida. Look for rather warm temperatures on Friday afternoon as gusty ssw winds prevail. This will allow highs in most areas to climb into the upper 80s (even the east coast metro), with some lower 90s not out of the question. Cooler air will filter in overnight behind the front, with lows dropping off into the 60s for most areas. Saturday through Wednesday... look for dry and slightly cooler conditions early in the period following the frontal passage. High pressure then builds back in at the surface and aloft bringing onshore flow along with increasing temperatures and humidity towards mid week. A few mainly light showers are possible at times as well. Marine... breezy e-se flow is expected today, likely reaching advisory levels late tonight into Friday for all waters with gusty s-ssw winds. Winds will then veer NW behind the front on Saturday. A small craft advisory for winds and waves will likely be needed for some portion of this period. Shower and thunderstorm chances begin on Thursday while becoming likely on Friday into Friday night, with some stronger storms possible during this time. Beach forecast... there is a high risk for rip currents for the atlantic beaches today. Breezy e-se winds and a NE swell will produce a moderate to at times high rip current risk through midweek. An elevated risk should then develop for the gulf beaches on Friday into the weekend with NW winds behind the front. Preliminary point temps pops West palm beach 85 74 87 65 20 50 60 70 fort lauderdale 85 76 85 68 20 50 60 70 miami 86 76 86 68 20 50 60 70 naples 87 74 85 67 0 20 80 60 Mfl watches warnings advisories Fl... High rip current risk through this evening for flz168-172-173. Am... None. Gm... None. Aviation... 33 kelly |
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 | 46 min | ESE 12 G 16 | 79°F | 80°F | 1015.4 hPa | ||
| PEGF1 | 27 mi | 46 min | E 6 G 14 | 79°F | 1016.2 hPa | |||
| MDKF1 | 31 mi | 76 min | 79°F | |||||
| HCEF1 - Highway Creek, FL | 34 mi | 76 min | 78°F | |||||
| THRF1 | 36 mi | 136 min | 80°F | |||||
| LSNF1 - Long Sound, FL | 36 mi | 76 min | 78°F | |||||
| LBSF1 - Little Blackwater, FL | 36 mi | 136 min | 79°F | |||||
| BWSF1 - Blackwater Sound, FL | 39 mi | 136 min | 79°F | |||||
| TCVF1 - Trout Cove, FL | 39 mi | 136 min | 79°F | |||||
| DKKF1 - Duck Key, FL | 40 mi | 136 min | 78°F | |||||
| TRRF1 - Taylor River, FL | 42 mi | 76 min | 82°F | |||||
| LMDF1 - Little Madeira, FL | 44 mi | 76 min | 79°F | |||||
| CANF1 - Cane Patch, FL | 45 mi | 76 min | 80°F | |||||
| BNKF1 - Butternut Key, FL | 46 mi | 76 min | 78°F | |||||
| NRRF1 | 47 mi | 76 min | 82°F | |||||
| TPEF1 - Tarpon Bay East, FL | 47 mi | 136 min | 79°F | |||||
| LRIF1 | 48 mi | 76 min | 80°F |
Wind History for Virginia Key, FL
(wind in knots) EDIT (on/off) Help| 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | -12 PM | 3 PM | 4 PM | 5 PM | 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 | |
| Last 24hr | N G10 | NE G12 | NE G11 | NE G16 | NE G14 | NE G13 | NE G16 | NE G16 | NE | NE G16 | NE G12 | E G12 | NE G11 | E | E | E G13 | E | E | E G11 | E G12 | E G11 | E G12 | E | |
| 1 day ago | NE | NE G12 | NE G13 | NE G14 | NE G15 | NE G14 | NE G14 | NE G14 | NE G15 | NE G14 | NE G15 | NE G14 | NE G14 | NE G10 | NE G13 | NE | NE G13 | NE G11 | NE G10 | NE G11 | NE | NE G10 | NE | N G8 |
| 2 days ago | SW | SW | W G12 | W G12 | W G13 | W G12 | W G10 | W G11 | W G10 | W G9 | W G8 | E | E | N G6 | N | N | N | NE G12 | NE | NE G14 | NE G12 | NE G12 | NE G11 | NE G12 |
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 | 23 min | SE 12 | 10.00 mi | Mostly Cloudy | 79°F | 72°F | 79% | 1016 hPa |
| Miami, Kendall-Tamiami Executive Airport, FL | 14 mi | 23 min | ESE 12 G 17 | 10.00 mi | A Few Clouds | 81°F | 70°F | 69% | 1015.7 hPa |
| Miami, Opa Locka Airport, FL | 16 mi | 23 min | ESE 10 | 10.00 mi | Mostly Cloudy | 80°F | 71°F | 74% | 1016.3 hPa |
| Homestead Air Reserve Base, FL | 19 mi | 80 min | ESE 10 | 10.00 mi | Mostly Cloudy | 78°F | 70°F | 77% | 1015.6 hPa |
| Hollywood, North Perry Airport, FL | 21 mi | 23 min | ESE 12 | 10.00 mi | Partly Cloudy | 80°F | 71°F | 74% | 1016.4 hPa |
Wind History from MIA (wind in knots)
| 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 | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | E | E | NE | E | E G18 | E G21 | E G17 | E G18 | E | E G17 | E | E | E | E | E | E | E | E | E | E | E | E | E | SE |
| 1 day ago | E | NE | G15 | E G18 | NE G18 | E G18 | NE G18 | E G16 | E G21 | E | NE | NE | NE | NE | E | NE | NE | E | E | NE | NE | Calm | E | NE |
| 2 days ago | W | NW | NW G16 | NW G16 | NW G16 | NW | NW | W | NW | NW | NW | NE | N | Calm | W | NW | Calm | N | NE | N | N | NE |
Tide / Current Tables for Key Biscayne Yacht Club, Biscayne Bay, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataKey Biscayne Yacht Club
Click for Map
Thu -- 03:35 AM EDT -0.26 feet Low Tide
Thu -- 06:32 AM EDT Moonset
Thu -- 06:55 AM EDT Sunrise
Thu -- 09:14 AM EDT 2.42 feet High Tide
Thu -- 03:55 PM EDT -0.42 feet Low Tide
Thu -- 07:10 PM EDT Moonrise
Thu -- 07:45 PM EDT Sunset
Thu -- 09:45 PM EDT 2.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 03:35 AM EDT -0.26 feet Low Tide
Thu -- 06:32 AM EDT Moonset
Thu -- 06:55 AM EDT Sunrise
Thu -- 09:14 AM EDT 2.42 feet High Tide
Thu -- 03:55 PM EDT -0.42 feet Low Tide
Thu -- 07:10 PM EDT Moonrise
Thu -- 07:45 PM EDT Sunset
Thu -- 09:45 PM EDT 2.56 feet High 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 | 0.6 | 0.1 | -0.2 | -0.2 | 0.1 | 0.8 | 1.5 | 2.1 | 2.4 | 2.3 | 2 | 1.4 | 0.7 | 0.1 | -0.3 | -0.4 | -0.2 | 0.4 | 1.2 | 1.9 | 2.4 | 2.6 | 2.3 |
Tide / Current Tables for Miami Harbor Entrance, Florida Current
EDIT (on/off) Help One Week of DataMiami Harbor Entrance
Click for Map
Thu -- 01:10 AM EDT -1.96 knots Max Ebb
Thu -- 03:29 AM EDT 0.00 knots Slack
Thu -- 06:32 AM EDT Moonset
Thu -- 06:55 AM EDT Sunrise
Thu -- 06:59 AM EDT 2.36 knots Max Flood
Thu -- 09:36 AM EDT -0.00 knots Slack
Thu -- 01:26 PM EDT -2.06 knots Max Ebb
Thu -- 03:50 PM EDT 0.00 knots Slack
Thu -- 07:09 PM EDT Moonrise
Thu -- 07:22 PM EDT 2.64 knots Max Flood
Thu -- 07:45 PM EDT Sunset
Thu -- 10:11 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 01:10 AM EDT -1.96 knots Max Ebb
Thu -- 03:29 AM EDT 0.00 knots Slack
Thu -- 06:32 AM EDT Moonset
Thu -- 06:55 AM EDT Sunrise
Thu -- 06:59 AM EDT 2.36 knots Max Flood
Thu -- 09:36 AM EDT -0.00 knots Slack
Thu -- 01:26 PM EDT -2.06 knots Max Ebb
Thu -- 03:50 PM EDT 0.00 knots Slack
Thu -- 07:09 PM EDT Moonrise
Thu -- 07:22 PM EDT 2.64 knots Max Flood
Thu -- 07:45 PM EDT Sunset
Thu -- 10:11 PM EDT -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 |
| -1.7 | -2 | -1.7 | -0.7 | 0.7 | 1.7 | 2.2 | 2.4 | 2 | 0.8 | -0.5 | -1.3 | -1.7 | -2 | -2 | -1.2 | 0.2 | 1.6 | 2.3 | 2.6 | 2.5 | 1.6 | 0.2 | -0.8 |
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 (9,2,3,4)
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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. |