Saturday, March17, 2018

Marine Weather and Tides
South Palm Beach, FL

Version 3.4
What's New / NOTES
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 7:19AMSunset 7:25PM Saturday March 17, 2018 12:08 PM EDT (16:08 UTC) Moonrise 6:29AMMoonset 6:36PM Illumination 1% Phase: New Moon; Moon at 1 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near South Palm Beach, FL
   Hourly   EDIT   Help
location: 26.43, -77.13     debug

Area Discussion for - Miami-South Florida, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmfl 171350
area forecast discussion
national weather service miami fl
950 am edt Sat mar 17 2018

No major changes to the forecast but I bumped up the forecast high
temperatures for this afternoon by a degree, mainly for eastern
areas of south florida, based on latest temperature trends and
short term guidance. Morning sounding still shows pwats around
0.75, and the dry air is expected to remain in place through

Prev discussion issued 729 am edt Sat mar 17 2018

vfr will prevail through the period with a few cumulus today and
winds SE 10 kts for east coast TAF sites after 15z. Apf will be
light until west coast sea breeze kicks in around 17z. After 02z
this evening, winds should become wsw 5 kts or less for all

Prev discussion... Issued 331 am edt Sat mar 17 2018

this weekend: we will remain under the influence of low level high
pressure centered just to our east through the weekend. With the
ridge axis just to our south, prevailing flow will veer more south-
southwesterly, leading to a warmer and slightly more moist
atmosphere. The forecast is expected to remain dry however, with
simply more cumulus present during the afternoons. The increase in
low level moisture along with light winds will make interior fog
development a little more likely the next two nights. Afternoon
highs will be closer to normal in the low to mid 80s. Overnight
lows will be milder too, with mid to upper 50s over the interior
and gulf coast and mid to upper 60s along the east coast metro.

Monday through Wednesday: better agreement as well as run to run
consistency in the models tonight in the development of the next
system to affect south florida. Stronger upper level low is expected
to move from the central plains into the tn valley early week,
followed closely on its heels by an upper level jet digging a robust
trough across the eastern third of the us by midweek. These features
will drive the development of a large storm system that is expected
to track across the southeastern us and off the carolina coast by
Wednesday. As it moves off the coast, it is expected to bring
another cold front through south florida during the day on

There may be a few showers to our north on Monday along the stalled
boundary. However, better rain chances will arrive Tuesday as the
front dips far enough south to bring the threat for scattered
showers and a few storms. Coverage is expected to increase through
the overnight hours as the front moves into the region, likely
clearing the region the first half of Wednesday.

Increasing west-southwest flow and lack of atlantic seabreeze
development will allow highs on Monday and Tuesday to reach into the
mid to upper 80s. Tuesday will be the warmer of the two days, with
the potential for some sites to see their first 90 degree days of
the year.

Late next week: with both the GFS and ECMWF remaining in agreement
in a stronger and more progressive system, expect the deepening
upper level low to be moving well up the northeastern seaboard on
Thursday. The week looks to end dry and cooler across south florida,
with daytime temperatures dropping back into the low to mid 70s and
overnight lows once again dipping into the 40s and low 50s.

Marine... High pressure remains overhead through the weekend, with
light south-southwesterly flow across the region. Both the gulf and
atlantic breezes will develop during the afternoons, bringing speeds
up to 10-15kts along the coast.

Winds pickup out of the southwest Monday and Tuesday ahead of the
next system moving through the state, with speeds increasing to 15
to 20 knots at times Monday and Tuesday. Gusty northwesterly winds
may lead to hazardous boating conditions behind the front mid to
late week.

Seas 2ft or less through Monday, building from Tuesday onwards as
winds increase.

Fire weather... Flow shifting out of the south-southwest through the
weekend along with seabreeze development the next few afternoons
will help mitigate the very dry airmass that has been in place
across south florida. Expect afternoon rh values to drop into the
40s across most of the region, with areas across the western
interior still likely seeing a few hours of rh values in the 30-35%
range. Modest increase in winds should keep dispersions generally
good through Monday. Fog development may become a concern the next
few nights, especially Sunday and Monday night.

Another front will move through the region Tuesday into Wednesday,
bringing a chance of showers and a few storms, with a dry and breezy
airmass returning behind the front late next week.

Preliminary point temps pops
West palm beach 82 62 81 65 0 0 10 0
fort lauderdale 82 66 82 69 0 0 10 0
miami 82 66 83 69 0 0 10 0
naples 81 64 80 66 0 0 0 10

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Update... 98 abh
discussion... 88 alm
marine... 88 alm
aviation... 98 abh
fire weather... 88 alm

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL157 mi2.3 hrsN 010.00 miFair72°F59°F65%1019.6 hPa

Wind History from BCT (wind in knots)
Last 24hr5CalmE7SE6SE6SE12--SE12SE8SE8SE4SE4SE4--------------CalmCalm--Calm
1 day agoN7N6E10SE10E7E6
2 days agoNW12NW10NW10N11--NW11NW16NW12

Tide / Current Tables for Pelican Harbour, Abaco Island, Bahamas
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Pelican Harbour
Click for Map
Sat -- 02:50 AM EDT     0.66 feet Low Tide
Sat -- 07:15 AM EDT     Sunrise
Sat -- 07:28 AM EDT     Moonrise
Sat -- 09:00 AM EDT     3.57 feet High Tide
Sat -- 09:14 AM EDT     New Moon
Sat -- 03:12 PM EDT     0.69 feet Low Tide
Sat -- 07:17 PM EDT     Sunset
Sat -- 07:35 PM EDT     Moonset
Sat -- 09:17 PM EDT     3.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Eleuthera Island (west coast), Bahamas
   EDIT      (on/off)   Help   One Week of Data
Eleuthera Island (west coast)
Click for Map
Sat -- 04:52 AM EDT     0.77 feet Low Tide
Sat -- 07:12 AM EDT     Sunrise
Sat -- 07:25 AM EDT     Moonrise
Sat -- 09:14 AM EDT     New Moon
Sat -- 10:51 AM EDT     3.47 feet High Tide
Sat -- 05:15 PM EDT     0.80 feet Low Tide
Sat -- 07:15 PM EDT     Sunset
Sat -- 07:33 PM EDT     Moonset
Sat -- 11:08 PM EDT     3.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Miami, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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 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 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.