Thursday, June20, 2019 L-36.com


Marine Weather and Tides
South Palm Beach, FL

Version 3.4
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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:20AMSunset 8:11PM Thursday June 20, 2019 8:59 AM EDT (12:59 UTC) Moonrise 9:56PMMoonset 8:05AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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 201131
afdmfl
area forecast discussion
national weather service miami fl
731 am edt Thu jun 20 2019

Aviation
Vfr conditions expected to continue through the period. S-sw flow could
allow for a chance of vcsh or shra to develop for the east coast
sites this afternoon. However, the chance remains too low to
include in the tafs at this time.

Prev discussion issued 246 am edt Thu jun 20 2019
discussion...

today and tonight...

geopotential heights will begin rising today as a zonally elongated
mid-level ridge builds in from the western atlantic. This will
support surface ridging whose axis will branch west into south
florida. Convection will be greatly suppressed given deep layer
subsidence, drying aloft, and a saharan air layer (sal) which should
advect in from the caribbean sea over the next few days. Given
rising thicknesses, today will start a hotter period with interior
highs rising well into the 90s. This may place a few record highs
in jeopardy. We'll also be flirting with heat advisory criteria
(apparent temperatures of 108 degrees or greater for 2 hours or
more), so this will be something to watch. At first glace, model
dewpoint temperatures appear a little overdone given the drier
airmass, so lowered them slightly (in line with thinking from the
previous forecast shift). Given low confidence will hold off on
an advisory for now, but further evaluation might be necessary
later this morning in case observed dewpoints are running a bit
higher than expected. Regardless of headlines, those with outdoor
plans should exercise caution given the heat. Slow down, drink
plenty of water, and take breaks if you'll be outside.

Friday and Saturday...

the mid-level ridge will retrograde towards the gulf of mexico.

This will support decently strong low-level ridging early in this
period, with surface high pressure getting pinched off off over
the western gulf of Saturday in response to troughing over the
eastern seaboard into the western atlantic. With large scale
subsidence shower and thunderstorm coverage will be rather limited
to nonexistent with sea breeze driven diurnal cycles. Thicknesses
and 925 850 mb temperatures peak on Friday (when the ridging is
strongest), with another very hot day expected. Record highs could
be in jeopardy once again. Heat index values should peak on
Friday afternoon, once again coming rather close to advisory
criteria. This is another day where caution is advised for those
working outdoors.

Sunday through Wednesday...

the mid-level ridge will deamplify in response to shortwave
perturbations crossing from the eastern CONUS into the western
atlantic. This will lower thicknesses somewhat as an easterly low-
level wind component becomes established. High temperatures will
likely cool a few degrees for eastern areas as a result. South
florida will be located along the eastern periphery of the
anticyclonic flow around the mid-level ridge, leaving us exposed to
southward dropping perturbations around the ridge center. This may
increase our shower storm chances a bit during this period.

Marine...

quiet conditions are expected with only a small chance for a shower
or storm. S-sw winds are anticipated through Friday, with light and
variable winds by the weekend.

Preliminary point temps pops
West palm beach 88 78 92 77 30 10 10 0
fort lauderdale 87 79 91 79 20 10 10 0
miami 88 79 90 79 20 10 10 10
naples 88 78 91 78 10 0 0 0

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Discussion... 34 spm
marine... 34 spm
aviation... 11 hvn
climate... 34 spm


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL157 mi2.2 hrsSW 47.00 miFair77°F77°F100%1016.6 hPa

Wind History from BCT (wind in knots)
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Last 24hrS7S9S9S10S10S10S10N17
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1 day agoS7S8SW5S8S5S10W10
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2 days agoE7
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SW10CalmS3SW5--S7S7SE5SE5SE8--------------CalmCalm4

Tide / Current Tables for Pelican Harbour, Abaco Island, Bahamas (2)
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Pelican Harbour
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Thu -- 05:17 AM EDT     0.08 feet Low Tide
Thu -- 06:15 AM EDT     Sunrise
Thu -- 09:04 AM EDT     Moonset
Thu -- 11:13 AM EDT     2.40 feet High Tide
Thu -- 05:11 PM EDT     0.20 feet Low Tide
Thu -- 08:03 PM EDT     Sunset
Thu -- 10:54 PM EDT     Moonrise
Thu -- 11:28 PM EDT     2.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.72.21.50.90.30.10.20.51.11.72.22.42.321.40.90.40.20.30.71.31.92.42.7

Tide / Current Tables for Pelican Harbour, Abaco Island, Bahamas
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Pelican Harbour
Click for Map
Thu -- 05:12 AM EDT     0.79 feet Low Tide
Thu -- 06:15 AM EDT     Sunrise
Thu -- 09:04 AM EDT     Moonset
Thu -- 11:09 AM EDT     3.11 feet High Tide
Thu -- 05:07 PM EDT     0.90 feet Low Tide
Thu -- 08:03 PM EDT     Sunset
Thu -- 10:54 PM EDT     Moonrise
Thu -- 11:24 PM EDT     3.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.32.82.21.510.80.91.31.92.52.93.132.62.11.51.10.911.422.73.23.4

Weather Map and Satellite Images
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wmap_A
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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Wind Forecast for Miami-South Florida, FL (8,2,3,4)
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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.