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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:50AM | Sunset 7:48PM | Saturday April 21, 2018 7:07 PM EDT (23:07 UTC) | Moonrise 10:45AM | Moonset 12:00AM | Illumination 41% |  |
Marine Forecasts
EDIT (on/off) Help| 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- 416 Pm Edt Sat Apr 21 2018 .small craft advisory in effect through Sunday morning... Tonight..East winds 10 to 15 knots along the coast to east 15 to 20 knots in the gulf stream. Seas 2 to 4 feet with occasional seas to 5 feet along the coast and 3 to 5 feet with occasional to 8 feet in the gulf stream. Period 3 seconds increasing to 9 seconds after midnight. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Sunday..East southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Period 8 seconds. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Sunday night..Southeast winds 10 to 15 knots with gusts to around 25 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Period 6 seconds. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Monday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Monday night..South winds 5 to 10 knots along the coast to south southeast 10 to 15 knots in the gulf stream. Seas 2 to 3 feet. Intracoastal waters a light chop. A chance of showers and a slight chance of Thunderstorms. Tuesday..South southwest winds 10 to 15 knots. Seas around 2 feet. Intracoastal waters a light chop. Showers likely and a slight chance of Thunderstorms. Tuesday night and Wednesday..West southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers. Wednesday night..West winds 10 to 15 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers. Thursday..West southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A slight 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- 416 Pm Edt Sat Apr 21 2018 Synopsis..A stalled front remains just to the north, over central florida. Marine conditions are forecast to deteriorate through the day as the wind increases and seas build. Showers and Thunderstorms are forecast bring locally higher winds and waves late this weekend into early next week. Conditions should gradually improve by mid next week. Gulf stream hazards..Deteriorating conditions over the weekend with 7 to 8 foot seas expected. The approximate location of the west wall of the gulf stream as of apr 21, 2018 at 1200 utc... 12 nautical miles east southeast of fowey rocks. 10 nautical miles east of port everglades. 8 nautical miles east southeast of lake worth. 11 nautical miles east 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 212016 afdmfl area forecast discussion national weather service miami fl 416 pm edt Sat apr 21 2018 Discussion Short term (tonight-Monday night)... A frontal, decaying boundary remains stalled over the central portions of the florida peninsula, keeping a warm and moist airmass over south florida tonight and Sunday. Meanwhile, models show a mid level trough low complex developing over the central states and pushing an associated cold front towards florida. This synoptic scenario will translate in increasing chances of showers for tonight and into Sunday, including slight chances of thunderstorms. Rain coverage increases late Sunday into Monday as the stalled remnant boundary over central florida interacts with the approaching front and its parent trough low complex. Although widespread heavy rain is not anticipated, isolated downpours are certainly possible. Models continue to show the higher chances for thunderstorm activity Monday afternoon, especially over interior portions of south florida as overall flow veers southerly ahead of the incoming front. High-end pops are being carried in the latest forecast package with up to 80-90 pops over interior areas around lake okeechobee. And although it is possible for a few storms to become strong or even severe, latest model solutions remain conservative regarding upper level dynamic support for severe weather. But the situation will continue to be closely monitored as new model guidance become available. Long term (Tuesday-Friday)... A mid level trough low complex migrates into the south eastern states and pushing its associated frontal boundary further south and into the area by Tuesday. This will further veer winds to the sw, moving the higher chances for showers and storms into the atlantic metro areas. Once the front clears south florida, drier air will filter from the northwest briefly, bringing a pause to the rainy pattern Wednesday and Thursday. No significant impacts in temperatures are expected from this fropa. Long range model solutions a couple of energy impulses quickly evolving over the us and pushing cold fronts into florida Thursday and Friday. However, timing and potential impacts of these systems remain uncertain as there is still plenty of time for significant model adjustments. Therefore, will keep inherited long range forecast of mainly prevailing dry conditions across the area for the end of the period and wait for upcoming guidance before making any significant changes. Marine An slowly retreating northerly swell, combined with gusty easterly |
winds will keep hazardous seas over the atlantic waters tonight. Elevated winds and seas will linger into early next week as the next cold front pushes through the area. Conditions will gradually improve by midweek. Aviation East coast sites will generally remain ene 8-10kts through the remainder of the overnight, though kopf-ktmb will briefly drop to 5-8kts through daybreak. Speeds pickup after 13z, with east wind surge arriving after 18z bringing speeds around 15kts with gusts to 25kts. Kapf expected to see gulf breeze around same time, backing winds out of the wsw. Conditions look to remainVFR, though occasional east coast MVFR stratocu possible through period. Bkn050 and vcsh become more likely along east coast after 18z. Beach forecast An elevated swell and persistent easterly flow will create an elevated risk of rip currents along the atlantic beaches through this weekend. The palm beaches will have a high risk for rip current through the rest of weekend, and possibly into early next week. The miami-dade and broward beaches may also see deteriorating conditions starting Sunday. Rip current statement for the palm beaches is now in effect through Sunday. Aviation An easterly flow and a boundary to the north, will bring the possibility of shra and tsra to the area. The chances increase gradually today and this evening, and persist through the taf period. However, tsra is very uncertain as to where and how long, so not mentioned in tafs at this time. Vcsh is placed in all but kapf, where chances are lower at this time. WhileVFR is forecast, ifr is possible under +shra and +tsra. Preliminary point temps pops West palm beach 71 81 71 82 50 50 50 60 fort lauderdale 74 81 73 82 50 40 50 60 miami 73 83 73 83 40 40 40 50 naples 69 84 70 84 20 40 30 40 Mfl watches warnings advisories Fl... High rip current risk until 8 pm edt this evening for flz168. Am... Small craft advisory until 11 am edt Sunday for amz651-671. Small craft advisory until 11 am edt Sunday for amz650-670. Gm... None. Discussion marine... 17 ar aviation... Si |
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| 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 | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | E | E G10 | NE | E | E G11 | E G11 | E G10 | E G8 | NE | E G8 | E G8 | E | NE G11 | E | NE | E | NE | NE | NE | NE | NE | NE | NE | NE |
| 1 day ago | SE G10 | SE | S | S | S | SW | SW | SW | W | W | W | NW | W G7 | W | W | SW | SE | E | NE | E | E | E | NE | NE G11 |
| 2 days ago | NE G12 | E G13 | NE | E G14 | E | E G13 | E | E | E G10 | E G11 | E | SE | SE | SE | S G9 | E G6 | E G8 | SE G6 | SE G10 | E | SE | SE G11 | SE | SE |
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 | 75 min | E 11 | 10.00 mi | Mostly Cloudy | 81°F | 69°F | 67% | 1017.9 hPa |
| Miami, Kendall-Tamiami Executive Airport, FL | 14 mi | 75 min | E 11 | 10.00 mi | Fair | 82°F | 66°F | 60% | 1017.6 hPa |
| Miami, Opa Locka Airport, FL | 16 mi | 75 min | E 12 | 10.00 mi | A Few Clouds | 81°F | 69°F | 67% | 1018.1 hPa |
| Homestead Air Reserve Base, FL | 19 mi | 72 min | NE 11 | 10.00 mi | A Few Clouds | 80°F | 70°F | 71% | 1017.9 hPa |
| Hollywood, North Perry Airport, FL | 21 mi | 75 min | E 13 | 10.00 mi | A Few Clouds | 83°F | 70°F | 65% | 1018.3 hPa |
Wind History from MIA (wind in knots)
| 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 | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | E | E | E | E | E | SE | E | E | E | E | E | E | E | E | E | E | E | E | NE G16 | E | E | E | E | E G15 |
| 1 day ago | SE | SE | S | S | SW | S | SW | SW | SW | W | W | W | W | W | NW | W | Calm | SW | S | SE | E | SE | NE | E |
| 2 days ago | E | E | E | E | E | E | E | E | Calm | Calm | Calm | Calm | W | SW | S | Calm | Calm | SE | E | SE | SE | SE G18 | SE |
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 Data| Key Biscayne Yacht Club Click for Map Sat -- 12:40 AM EDT Moonset Sat -- 02:06 AM EDT 2.22 feet High Tide Sat -- 06:52 AM EDT Sunrise Sat -- 08:45 AM EDT 0.18 feet Low Tide Sat -- 11:45 AM EDT Moonrise Sat -- 02:19 PM EDT 2.03 feet High Tide Sat -- 07:46 PM EDT Sunset Sat -- 09:08 PM EDT -0.06 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 1.6 | 2 | 2.2 | 2.1 | 1.8 | 1.4 | 0.9 | 0.5 | 0.2 | 0.2 | 0.4 | 0.8 | 1.3 | 1.8 | 2 | 2 | 1.7 | 1.3 | 0.9 | 0.4 | 0.1 | -0.1 | 0 | 0.4 |
Tide / Current Tables for Miami Harbor Entrance, Florida Current
EDIT (on/off) Help One Week of Data| Miami Harbor Entrance Click for Map Sat -- 12:40 AM EDT Moonset Sat -- 02:38 AM EDT -0.00 knots Slack Sat -- 05:07 AM EDT -1.45 knots Max Ebb Sat -- 06:52 AM EDT Sunrise Sat -- 08:51 AM EDT 0.00 knots Slack Sat -- 11:18 AM EDT 1.90 knots Max Flood Sat -- 11:45 AM EDT Moonrise Sat -- 02:50 PM EDT -0.00 knots Slack Sat -- 05:19 PM EDT -1.55 knots Max Ebb Sat -- 07:46 PM EDT Sunset Sat -- 09:14 PM EDT 0.00 knots Slack Sat -- 11:50 PM EDT 2.12 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 2.1 | 1.7 | 0.8 | -0.4 | -1.2 | -1.4 | -1.4 | -1.2 | -0.8 | 0.2 | 1.3 | 1.9 | 1.8 | 1.5 | 0.9 | -0.2 | -1.1 | -1.5 | -1.5 | -1.3 | -1 | -0.3 | 0.9 | 1.9 |
Weather Map and Satellite Images
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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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Miami-South Florida, FL (19,4,5,8)
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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. |