Sunday, May28, 2017 L-36.com


Marine Weather and Tides
El Combate, PR

Version 3.4
What's New / NOTES
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 5:55AMSunset 7:06PM Sunday May 28, 2017 6:36 AM AST (10:36 UTC) Moonrise 8:48AMMoonset 10:10PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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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AMZ741 Mona Passage Southward To 17n- 414 Am Ast Sun May 28 2017
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Monday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Monday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms.
Tuesday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms. Scattered showers.
Wednesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Thursday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated Thunderstorms, then isolated showers.
AMZ700 414 Am Ast Sun May 28 2017
Synopsis for puerto rico and the uS. Virgin islands waters... A broad surface high pressure will remain anchored over the central and northeast atlantic through the rest of the holiday weekend. This will result in moderate to locally fresh easterly winds. A tropical wave is forecast to enter the eastern caribbean early Monday morning,then move across the regional waters Monday night through Tuesday. This will increase the chance for Thunderstorms with areas of locally heavy rainfall across the regional waters. Local seas are expected to remain below 5 feet for the next several days.

7 Day Forecast for Marine Location Near El Combate, PR
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location: 18.09, -67.94     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 280837
afdsju
area forecast discussion
national weather service san juan pr
437 am ast Sun may 28 2017

Synopsis A mid to upper level trough will continue to linger and
deepen across the northeastern caribbean, while a tutt low is forecast
to develop just north of the forecast area late Monday through Tuesday.

A tropical wave just east of the lesser antilles will enter the eastern
caribbean early Monday then move across and impact the local area through
at least Tuesday.

Short term Sunday through Tuesday...

partly cloudy skies prevailed across the local islands overnight and
early this morning with a few passing showers noted across the surrounding
waters, usvi and E pr. These showers however left minimal rainfall accumulations.

The overnight temperatures were in the upper 70s to low 80s across the
lower elevations and in the low 70s across the higher elevations. Winds
were east northeast at 10 mph or less.

A developing mid to upper level trough across the west tropical atlantic
and into the central and eastern caribbean will enhance shower and
thunder activity across the eastern caribbean through the forecast
period. At lower levels, a tropical wave will continue to move way
from the forecast area today, however another wave and associated
moisture is expected to reach the local islands as soon as Monday
afternoon night. This feature will combine with the developing mid
to upper level trough to result in organized convection across the
area Monday afternoon and Tuesday. Meanwhile, at least through Monday
morning, continue to expect passing showers across windward areas
during the morning and evening hours as well as showers and thunderstorms
developing over and west of the cordillera central in the afternoon.

With the heaviest shower and thunder activity, urban flooding will
be likely.

Long term Wednesday through Monday...

the tropical wave with axis near 55w is forecast to move across and
exit the eastern caribbean by Wednesday. However, expect sufficient
trailing moisture along with the lingering mid to upper level tutt low
to maintain instability and good moisture convergence across the region.

This will support a fairly moist weather pattern and consequently favorable
conditions for showers and isolated thunderstorm development across
the islands and over the coastal waters at least until Thursday, with
a gradual improvement by Friday and Saturday. Still however will not
rule out the potential for early morning passing showers and isolated
thunderstorm development each day over portions of the islands,especially
over the central and west sections of puerto rico. In addition, recent
dust prediction models and guidance suggests another moderate to high
concentration of saharan dust trailing the previously mentioned wave.

Therefore, will have to see how much this would affect the overall
environment. Present model guidance also suggest another tropical
wave is to approach the region by Sunday and Monday, which is typical
for this time of the season when tropical waves are likely every two
to three days. Will continue to monitor and adjust forecast package
as needed.

Aviation MostlyVFR conds expected at all TAF sites through the
morning hours with vcsh possible at the leeward and usvi terminals
as well as jsj. Aft 28 16z shra tsra expected over pr and this may
result in brief periods of MVFR conds at all pr TAF sites. Easterly
winds 10-15 knots with some sea breeze variations after 28 12z.

Approaching tropical wave may result in shra tsra over the leeward
terminals later today.

Marine Overall buoys across the regional waters continued to
suggest seas between 2-4 feet and winds east to northeast at 10 to
15 knots. Seas are expected to remain between 2 to 5 feet through
early next week and winds of 15 knots or less in most areas.

However, a tropical wave forecast to move across the eastern
caribbean may bring an increase in winds and seas as well as
increase the chance for thunderstorm activity Monday through
Tuesday.

Preliminary point temps pops
Sju 89 78 89 77 40 30 50 50
stt 89 78 86 77 40 40 60 60

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Om
long term... .Ram


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MISP4 - 9759938 - Mona Island, PR 0 mi49 min 83°F1015.6 hPa
41115 - Rincon, Puerto Rico (181) 40 mi44 min 83°F2 ft
PTRP4 41 mi32 min ESE 6 G 9.9 73°F
MGZP4 - 9759394 - Mayaguez, PR 42 mi55 min ESE 1.9 G 2.9 71°F 86°F1015.8 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 48 mi49 min Calm G 1.9 76°F 83°F1015.8 hPa
IMGP4 48 mi32 min ENE 5.1 G 8 75°F

Wind History for Mayaguez, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from JMZ (wind in knots)
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Last 24hr----------------------------------------------E5
1 day ago------------------------------------------NE4--E7
2 days ago------------------------------------------------

Tide / Current Tables for Mona Island, Puerto Rico
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Mona Island
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Sun -- 01:15 AM AST     0.91 feet Low Tide
Sun -- 02:48 AM AST     0.94 feet High Tide
Sun -- 05:55 AM AST     Sunrise
Sun -- 08:48 AM AST     Moonrise
Sun -- 01:34 PM AST     -0.23 feet Low Tide
Sun -- 07:02 PM AST     Sunset
Sun -- 10:10 PM AST     Moonset
Sun -- 11:25 PM AST     0.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.90.90.90.70.50.40.30.30.20.1-0.1-0.2-0.2-0.1-000.10.20.40.60.80.9

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Sun -- 05:17 AM AST     0.12 feet Low Tide
Sun -- 05:52 AM AST     Sunrise
Sun -- 08:45 AM AST     Moonrise
Sun -- 10:09 AM AST     0.64 feet High Tide
Sun -- 04:18 PM AST     -0.25 feet Low Tide
Sun -- 06:59 PM AST     Sunset
Sun -- 10:07 PM AST     Moonset
Sun -- 11:23 PM AST     1.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.210.70.40.20.10.20.30.40.60.60.60.50.30-0.1-0.2-0.2-0.10.20.60.91.21.3

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

GOES Local Image of Puerto Rico    EDIT
Geos

Wind Forecast for (6,6,7,8)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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.