Thursday, August17, 2017 L-36.com


Marine Weather and Tides
South Palm Beach, FL

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:47AMSunset 7:49PM Thursday August 17, 2017 1:29 PM EDT (17:29 UTC) Moonrise 1:22AMMoonset 3:12PM Illumination 21% Phase: Waning Crescent; Moon at 25 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 South Palm Beach, FL
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location: 26.43, -77.13     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 171211
afdmfl
area forecast discussion
national weather service miami fl
811 am edt Thu aug 17 2017

Aviation
A bermuda high continues to control the weather pattern through
the TAF period. However, the easterly wind will be a bit stronger
today, which should push most of the convective activity inland,
and towards the gulf coast. Even so, some outflow boundaries may
push back towards the atlantic coast late this afternoon. Have
added some vcts for a few hours to cover this in the afternoon.

Prev discussion issued 354 am edt Thu aug 17 2017
discussion...

latest water vapor imagery shows a large dome of high pressure
dominating the florida peninsula, with little in the way of
synoptic features to note. Surface high pressure continues to sit
stagnant, stretching from the eastern gulf of mexico to the
western atlantic. The mfl 00z mfl sounding displayed light
easterly winds from the surface to above 300 mb with pwat values
just shy of 1.70". As with the past several nights, short range
models indicate mostly dry conditions with a slight chance of
showers over the atlantic waters. Not much change is expected in
the synoptic pattern today, leading to a very similar setup as
yesterday. Light south easterly flow will allow both the atlantic
and gulf sea breezes to develop. These breezes should once again
trigger isolated scattered garden variety showers and
thunderstorms inland from the coasts, moving towards the interior
through the afternoon. Maximum temperatures will range from the
low to mid 90s across the region, a couple degrees warmer than
average for this time of year. On Friday, southeast flow will
continue with a pocket of drier air advecting in from the
southeast. GFS forecast pwat values drop to below 1.50" by the
late afternoon. Thus, expecting less thunderstorms coverage,
especially over the south and eastern portion of the cwa.

Saturday through early next week: on Saturday, both the GFS and
ecmwf agree in pushing an upper level low pressure system towards
south florida from the east. Pwats associated with this feature
are forecast to increase over 2.00" by Saturday afternoon. Deeper
moisture, along with various impulses of positive vorticity
advection, will bring more of a widespread rain threat to the east
coast metro region than previous days. Conditions stay favorable
for elevated shower and thunderstorm activity through Sunday,
before decreasing slightly on Monday. Long range models are
indicating yet another tropical wave to affect south florida late
Tuesday into mid next week, elevating the threat for heavier and
more widespread showers and thunderstorms.

Marine...

high pressure over the region will keep light to
moderate east to southeast flow over the coastal waters, as well
as the slight chance for showers and thunderstorms. An upper
level low pressure system approaching from the east will bring a
higher chance for thunderstorm activity Saturday into Sunday.

Seas are forecast to run less than 2 feet until the weekend, then
slowly build to 2 to 4 feet, under a strengthening easterly
wind.

Preliminary point temps pops
West palm beach 93 80 94 80 20 10 20 20
fort lauderdale 92 81 92 82 20 20 30 20
miami 92 81 93 80 20 20 20 20
naples 93 77 94 77 50 50 40 20

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Discussion... 27 jt
marine... 27 jt
aviation... 13


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL157 mi42 minESE 910.00 miA Few Clouds90°F77°F67%1019 hPa

Wind History from BCT (wind in knots)
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Last 24hrSE10SE8
G14
SE8--SE7SE5E5E5E4E4--------------CalmN5CalmNE8E9SE10SE9
1 day ago--E10SE7
G14
S8S7S7SW4NW4CalmCalm--------------CalmCalmCalmCalmCalmSE5SE8
2 days agoSE5SE10S10S7S9NW12
G18
SW3SW5CalmCalm----------------CalmCalmCalmCalm----

Tide / Current Tables for Pelican Harbour, Abaco Island, Bahamas
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Pelican Harbour
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Thu -- 02:21 AM EDT     Moonrise
Thu -- 04:34 AM EDT     3.23 feet High Tide
Thu -- 06:41 AM EDT     Sunrise
Thu -- 10:39 AM EDT     0.88 feet Low Tide
Thu -- 04:11 PM EDT     Moonset
Thu -- 05:11 PM EDT     3.87 feet High Tide
Thu -- 07:42 PM EDT     Sunset
Thu -- 11:46 PM EDT     0.91 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.82.42.93.23.22.92.41.81.30.90.91.21.72.43.13.63.93.83.42.721.41

Tide / Current Tables for Eleuthera Island (west coast), Bahamas
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Eleuthera Island (west coast)
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Thu -- 12:47 AM EDT     1.12 feet Low Tide
Thu -- 02:20 AM EDT     Moonrise
Thu -- 06:24 AM EDT     3.13 feet High Tide
Thu -- 06:39 AM EDT     Sunrise
Thu -- 12:42 PM EDT     0.99 feet Low Tide
Thu -- 04:06 PM EDT     Moonset
Thu -- 07:02 PM EDT     3.76 feet High Tide
Thu -- 07:38 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.11.31.82.42.83.13.12.82.41.81.41.111.31.82.53.13.63.83.63.22.72.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Miami-South Florida, FL (13,3,4,5)
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Ground Weather Radar Station Miami, FL
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weather_mapweather_map weather_map

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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.