Wednesday, June28, 2017

Marine Weather and Tides
Suárez, PR

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 5:44AMSunset 6:59PM Wednesday June 28, 2017 1:35 PM AST (17:35 UTC) Moonrise 10:12AMMoonset 11:07PM Illumination 22% Phase: Waxing Crescent; Moon at 5 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 Suárez, PR
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location: 23.03, -64.23     debug

Area Discussion for - San Juan, PR
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Fxca62 tjsj 281500
area forecast discussion
national weather service san juan pr
1100 am ast Wed jun 28 2017

Update near term Locally induced showers and thunderstorms are
still expected this afternoon across west puerto rico. However,
this activity should be short-lived as a drier air as well as
subsidence ahead of an approaching tropical wave encompass the
forecast area this evening into tonight. Moisture associated with
the approaching tropical wave is expected to reach the area tomorrow.

Minor changes were introduced to the near term grids at this

Aviation Vfr conds expected to prevail at all TAF sites with
brief MVFR conds in shra tsra at jmz between 28 16z and 28 22z.

Easterly winds 10-15 knots with sea breeze variations expected
through 28 22z, becoming at 10 knots or less overnight. Cloudiness
and shra tsra activity will increase across the leeward terminals

Marine Tranquil marine conditions will continue to prevail
across the regional waters with seas up to 4 feet and winds 15-20
knots. Winds and seas will increase across the area tonight into
Thursday as a tropical wave moves across the eastern caribbean.

This will also increase the chance for showers and thunderstorms.

Prev discussion issued 501 am ast Wed jun 28 2017
synopsis... A tropical wave will move across the area Thursday and
Friday increasing the shower and thunderstorm activity across the
area. A drier air mass will encompass the region behind the wave
during the weekend.

Short term... Today through Friday... The upper low to the north
northeast of the local area will remain over the central atlantic
for the next few days while a weaker upper low develops just north
of the local islands late Wednesday into Thursday. There is also
a strong sfc high across the north central atlantic which will
also prevail for the next few days. Saharan dust is present and
will affect the local area today so there will be some haze.

However, just like it was the case yesterday, showers and isolated
thunderstorms are expected this afternoon across western pr.

Thursday and Friday are expected to be more active as a tropical
wave approaches the local area late on Thursday, increasing the
available moisture significantly and causing much more coverage of
showers and thunderstorms when combined with the upper low just
north of the local islands late on Thursday into Friday.

Long term... Saturday through Thursday... Saturday and Sunday, a
dry airmass will dominates the region before a tropical wave
affect the local area Monday. Another dry airmass is forecast by
computer models to encompass the region from the east by mid next
week, with patches of low level moisture embedded in the trade
winds affecting the region throughout the period.

Aviation...VFR conds expected for the next 24 hours across the
local terminals. Vcsh is expected early in the morning for tist,
tisx, and tjsj. Afternoon convection is expected mainly across the
western sections of pr, which could affect tjmz and cause tempo MVFR
conds after 28 18z. Saharan dust is still present, causing haze but
visibility will still be p6sm. Winds from the east at 5-10kt
expected early this morning, increasing to about 15kt with
occasional gusts after 28 13z.

Marine... Seas up to 5 feet and winds up to 20 knots are expected
across the coastal waters. Small craft should exercise caution
across the atlantic and caribbean nearshore waters due to winds.

Preliminary point temps pops
Sju 89 80 89 77 30 10 40 50
stt 90 80 88 79 30 30 40 50

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Near term... Om
aviation... .Om

Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
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GOES Local Image of Puerto Rico    EDIT

Wind Forecast for (13,3,4,5)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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 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.