Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
El Combate, PR

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:28AMSunset 6:47PM Tuesday March 28, 2017 8:00 AM AST (12:00 UTC) Moonrise 6:57AMMoonset 7:31PM Illumination 1% Phase: Waxing Crescent; 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
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AMZ741 Mona Passage Southward To 17n- 408 Am Ast Tue Mar 28 2017
Today..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Tonight..Northeast winds 10 to 15 knots backing north after midnight. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Wednesday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Scattered showers.
Wednesday night..Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Thursday..Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Isolated showers.
Friday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. North swell 4 to 5 feet. Isolated showers.
Saturday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Northeast swell 4 to 5 feet. Isolated showers.
AMZ700 408 Am Ast Tue Mar 28 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Light south to southeast winds are expected to continue through this afternoon, as a surface low north of the islands continues to move northeastward. Then winds are forecast to slowly shift from the north to northeast tonight. A short dominant period northerly swell generated by this low is forecast to move across the atlantic waters and caribbean passages around midweek.

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 280809
afdsju
area forecast discussion
national weather service san juan pr
409 am ast Tue mar 28 2017

Synopsis A surface low pressure system north of puerto rico
will continue to bring a light and moist southerly wind flow
across the region today. A surface trough is forecast move across
the local islands today aiding in the development of showers and
thunderstorms along and to the north of cordillera central,
including the san juan metropolitan through at least tonight.

A drier air mass is expected to encompass the region by mid week.

Short term Today through Thursday...

a surface low pressure system located around 300 miles north of
puerto rico early this morning will continue to induce a moist
south to southwesterly flow which in combination with daytime
heating and local effects, will aid in the development of showers
and possible thunderstorms across the northern slopes of puerto
rico this afternoon. As has been the last couple of days, the
afternoon activity will be focus mainly across the north and
northeast sections of puerto rico including in the vicinity of san
juan.

The surface low is expected to move northeast away from the area by
late Wednesday. As it move away from the area, a high pressure
system is expected to take control of the weather locally. As a
result, drier and stable weather conditions are expected to return
to the local area by Thursday.

Long term... Friday through Tuesday...

as the surface low just to the north of puerto rico and
hispaniola continues to move further northeastward into the north
central atlantic, a ridge will begin to build across the region
late in the work week and during the upcoming weekend. This
feature will bring a northeasterly wind flow and a general dry and
stable weather pattern across the local islands through early in
the weekend. The northeasterly wind flow is expected to produce
seasonable temperatures during this period. An east to east
southeast winds will return to the region from late Saturday
through early next week with more moisture transport to produce an
slight increase in cloudiness and showers across the region and
warmer than normal temperatures across the northern coastal
municipalities of puerto rico. No widespread or significant shower
activity is expected at in the foreseeable future.

Aviation MainlyVFR conditions are expected to prevail across all
taf sites through at least 28/16z. Periods of MVFR conditions can be
expected across tjsj and tjbq between 28/16z through 28/22z in shra.

Low level winds will continue mainly south at 10 kts or less.

Marine Seas of 3 to 5 feet will continue to prevail across
the atlantic waters, with seas 2 to 4 feet across the caribbean
waters. A moderate risk of rip current will continue across the
atlantic shoreline of puerto rico during the next few days. A
northerly swell will arrive across the local waters Wednesday
into Thursday with seas increasing up to 6 feet.

Preliminary point temps/pops
Sju 87 77 85 75 / 60 20 20 10
stt 83 74 85 73 / 40 20 40 20

Sju watches/warnings/advisories
Pr... None.

Vi... None.

Am... None.

Short term... Fc
long term... .Jf


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MISP4 - 9759938 - Mona Island, PR 0 mi42 min 77°F 81°F1012.9 hPa
41115 - Rincon, Puerto Rico (181) 40 mi37 min 80°F3 ft
PTRP4 41 mi30 min SSE 4.1 G 8 77°F
MGZP4 - 9759394 - Mayaguez, PR 42 mi48 min SE 1.9 G 2.9 75°F 82°F1012.7 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 48 mi42 min E 1 G 2.9 79°F 82°F1013.1 hPa
IMGP4 48 mi25 min E 4.1 G 6 80°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--W4------------------------------------------E5
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Mona Island, Puerto Rico
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Mona Island
Click for Map
Tue -- 12:18 AM AST     0.33 feet Low Tide
Tue -- 02:06 AM AST     0.37 feet High Tide
Tue -- 04:25 AM AST     0.30 feet Low Tide
Tue -- 06:29 AM AST     Sunrise
Tue -- 06:56 AM AST     Moonrise
Tue -- 08:34 AM AST     0.56 feet High Tide
Tue -- 12:37 PM AST     0.25 feet Low Tide
Tue -- 02:40 PM AST     0.32 feet High Tide
Tue -- 04:30 PM AST     0.27 feet Low Tide
Tue -- 06:44 PM AST     Sunset
Tue -- 07:30 PM AST     Moonset
Tue -- 09:16 PM AST     0.67 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.30.40.40.30.30.40.50.50.60.50.40.30.30.30.30.30.30.40.50.60.70.60.5

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Tue -- 02:37 AM AST     0.01 feet Low Tide
Tue -- 06:26 AM AST     Sunrise
Tue -- 06:53 AM AST     Moonrise
Tue -- 08:37 AM AST     0.95 feet High Tide
Tue -- 02:49 PM AST     0.00 feet Low Tide
Tue -- 06:41 PM AST     Sunset
Tue -- 07:26 PM AST     Moonset
Tue -- 09:06 PM AST     1.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.2000.10.30.60.80.90.90.80.70.40.2000.10.30.60.811.11.10.9

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 (8,2,3,4)
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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.