Tuesday, July17, 2018 L-36.com

Marine Weather and Tides
Highland Beach, FL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 6:28AMSunset 8:02PM Tuesday July 17, 2018 1:54 AM EDT (05:54 UTC) Moonrise 10:15AMMoonset 10:53PM Illumination 19% Phase: Waxing Crescent; Moon at 4 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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7 Day Forecast for Marine Location Near Highland Beach, FL
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location: 26.19, -77.19     debug

Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 170523
area forecast discussion
national weather service miami fl
123 am edt Tue jul 17 2018

Vfr and light winds prevail through the late morning hours.

Thereafter, scattered showers and isolated thunderstorms appear
possible at eastern terminals with vcsh remaining in the tafs
after 17z. Winds turn ese at around 10kt in the afternoon. The
exception is again apf where light SE flow will shift westerly
around 10kt as sea breezes push inland. This will also bring vcts
for the gulf coast in the afternoon hours.

Prev discussion issued 756 pm edt Mon jul 16 2018

showers have ended for the evening and dryVFR conditions should
prevail through midday Tuesday. Thereafter, scattered showers and
isolated thunderstorms appear possible at eastern terminals, so have
introduced vcsh for now. Light wind tonight, generally southerly at
5 to 10 kt by late Tuesday morning, then SE at around 10 kt during
the afternoon (wsw at kapf) as sea-breezes become dominant.


showers and thunderstorms mostly dissipated by 715pm this evening.

However, kept slight chance pops through early part of evening due
to lingering boundaries, mainly over the eastern half of south
florida. Can't rule out isolated showers or a thunderstorm
through early evening over the interior or the eastern half of
south florida. However, most of south florida should remain dry
tonight. Otherwise, the forecast remains on track.

Prev discussion... Issued 402 pm edt Mon jul 16 2018

today-tonight: scattered to numerous thunderstorms this afternoon
will drift northward, so highest concentration of late
afternoon early evening storms will be over the northern half of
south florida. A few storms have been strong so far this
afternoon. The activity over land should wane during the evening

Tuesday through Thursday night and possibly lasting into
Saturday, we will see a large scale weather pattern that is
characterized by troughs of low pressure and stormy weather over
the southeastern u.S., northern florida, and possibly as far south
as central florida. However, a strengthening subtropical high
nosing its way into south florida is likely to prevent the
enhanced storminess from reaching the southernmost portions of the
florida peninsula for much of the week. At the same time, dry
mid-level air from the saharan air layer is likely to affect south
florida beginning sometime around late Tuesday and lasting for
much of the remainder of the work week. Layered precipitable water
imagery from cira shows that the dry air is most pronounced at
the 500-700 mb level and is currently approaching the bahamas from
the east-southeast. There will likely be some breaks in the sal
this week, and there could be a point in time later in the week
when the trough moves a little farther south. But for now, expect
rain chances to be somewhat lower on Tuesday through Thursday
compared to Monday for much of south florida. During this time,
pwats will be much higher over northern florida compared to south
fl due to the trough.

Low-mid level steering will be from the southwest much of the
week, so any mid-afternoon storms that form would move toward the
northeastern part of south fl for late afternoon.

Heat index values Tuesday and and Wednesday are forecast to be as
high as 104-106 for the western half of collier county, mainland
monroe and inland miami-dade over the everglades. Heat index
values are also forecast to reach 104-106 for portions of metro
palm beach county Tuesday and Wednesday.

Friday-Sunday forecast will depend on how much and how quickly
the ridge breaks down, if at all. There is still significant
uncertainty as to if and when the trough to our north will move
southward. The ridge could hold through day 7, which would keep us
in a similar weather pattern. However, as time GOES on, from day 5
to day 7, it appears that the chance of the ridge breaking down
will gradually increase. This means that moisture and pops could
increase over the weekend.


the western atlantic ridge will build westward through the
week, with the axis generally draped across south florida and the
adjacent waters. Prevailing flow will remain southerly through
Tuesday, then southwesterly late week as a frontal boundary
drifts into the fl peninsula. The increasing pressure gradient
will bring speeds up to 10 knots over the gulf and 10-15 knots
over the atlantic, still light enough to allow both the gulf and
atlantic seabreezes to develop each afternoon. Seas generally 2 ft
or less, occasionally 3 feet in the atlantic.

Showers and storms will be a concern for all the waters through the
period, though coverage should generally be below normal. Locally
higher winds and seas are possible near any storms.

Preliminary point temps pops
West palm beach 92 77 93 77 50 30 30 20
fort lauderdale 92 80 92 79 30 20 30 20
miami 92 79 92 78 30 10 30 10
naples 92 77 92 77 20 10 20 10

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Aviation... 17 ar

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL155 mi3.1 hrsSW 410.00 miFair81°F71°F74%1019.3 hPa

Wind History from BCT (wind in knots)
Last 24hr--------------CalmCalmCalmW4SE5SE8SE8SE8
1 day ago----------------CalmCalmE5E5E7NE5E8E7E10E10SE8E4SE5SE4SE3SE3
2 days ago--------------N5N5N5N5N10N10--E5E12E9E8E9E11E8E5E4SE4

Tide / Current Tables for Pelican Harbour, Abaco Island, Bahamas
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Pelican Harbour
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Tue -- 12:04 AM EDT     3.76 feet High Tide
Tue -- 06:25 AM EDT     0.41 feet Low Tide
Tue -- 06:25 AM EDT     Sunrise
Tue -- 11:14 AM EDT     Moonrise
Tue -- 12:37 PM EDT     3.62 feet High Tide
Tue -- 06:50 PM EDT     0.61 feet Low Tide
Tue -- 08:02 PM EDT     Sunset
Tue -- 11:52 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Nassau, New Providence Island, Bahamas
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Tue -- 06:03 AM EDT     0.47 feet Low Tide
Tue -- 06:29 AM EDT     Sunrise
Tue -- 11:16 AM EDT     Moonrise
Tue -- 12:21 PM EDT     3.66 feet High Tide
Tue -- 06:26 PM EDT     0.70 feet Low Tide
Tue -- 08:00 PM EDT     Sunset
Tue -- 11:53 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (1,6,7,8)
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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 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.