Sunday, June25, 2017 L-36.com


Marine Weather and Tides
Daguao, 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 5:47AMSunset 7:03PM Sunday June 25, 2017 4:54 AM AST (08:54 UTC) Moonrise 7:21AMMoonset 8:42PM Illumination 2% 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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AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 430 Am Ast Sun Jun 25 2017
Today..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Tonight..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers and isolated Thunderstorms.
Monday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms in the morning. Scattered showers through the day.
Monday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Wednesday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 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. Northeast swell around 4 feet. Scattered showers. Isolated Thunderstorms.
AMZ700 430 Am Ast Sun Jun 25 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Surface high pressure across the central atlantic will maintain a moderate easterly wind flow across the regional waters much of this week. However, winds are expected to slightly increase tonight into Monday as a tropical wave moves across the eastern caribbean.

7 Day Forecast for Marine Location Near Daguao, PR
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location: 18.19, -65.62     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 250049
afdsju
area forecast discussion
national weather service san juan pr
849 pm ast Sat jun 24 2017

Update The combination of diurnal heating and local effects
produced scattered showers and a couple of thunderstorms during
the afternoon hours across northwestern sections of puerto rico.

Isolated to scattered showers were also detected over the southern
portions of the metropolitan area. This activity produced brief
periods of moderate to heavy rainfall over those sections of
puerto rico. Some showers were also detected over the waters
between puerto rico and the u.S. Virgin islands. The upper level
ridge is expected to erode late Sunday night and Monday, allowing
more moisture transport across the local islands. For the
overnight and early Sunday morning, brief isolated to scattered
passing showers embedded in the easterly trades are expected to
move westward affecting the u.S. Virgin islands, vieques, culebra
as well as the eastern sections of puerto rico. For Sunday afternoon,
this moisture will combine with daytime heating and local effect
to produce a round of showers across western interior, and
northwest puerto rico. A tropical wave is expected to reach the
region late Sunday night and early Monday, resulting in an
increase in cloudiness, showers and possible thunderstorms across
the region. A saharan air layer is forecast to reach the local
islands early next week.

Aviation MainlyVFR conditions expected at all TAF sites
overnight except for passing vcsh across the leewards and u.S.V.I.

Taf sites. E-se winds of 10 knots or less expected until 25 14z
increasing to 15-20 knots after that. Brief periods of MVFR
possible over tjmz and tjbq after 25 18z due to diurnally induced
shra isold tsra.

Marine Mariners can expect seas of 3-5 ft and winds of 10-20 kts
across the regional waters. Moderate risk of rip current will continue
across parts of the north and southeast coast beaches of puerto
rico, culebra and vieques as well as in st. Croix.

Prev discussion issued 408 pm ast Sat jun 24 2017
synopsis...

diurnally induced shower activity will diminish by sunset, leaving
partly cloudy to mostly clear skies. Few passing showers will
continue to move across the coastal waters and may reach the
windward side of some islands during the over night hours. The
chance for showers and thunderstorms will increase across the
region late Sunday through Monday , as a tropical wave will move
across the eastern caribbean, and a tutt low develops northeast of
the region. Lesser activity is expected on Tuesday and Wednesday
except for locally induced afternoon showers and isolated
thunderstorms mainly over the west sections of puerto rico. Hazy
conditions will also be likely as an extensive saharan air layer
will trail the tropical wave.

Short term... Today through Monday...

a surface high pressure will continue to dominate the region during
the rest of the weekend. Under this pattern... Trade wind showers and
shallow low level clouds will reach the local islands and coastal waters
at times. A tropical wave is forecast to affect the local region Sunday
night through Monday. A tutt low is also forecast to develop and relocate
just northeast of the region while higher pressure ridge gradually
erodes aloft. As a result, an increase in cloudiness with showers and
thunderstorms is expected across coastal waters, puerto rico and the
u.S. Virgin islands. Drier air is expected to filter in as saharan
dust trailing the tropical wave will quickly spread across the region
by Monday evening. This should then limit the shower activity across
the islands and coastal waters.

Long term... Tuesday through Sunday...

as the tropical wave moves away from the local isles late Monday and
into Tuesday, low level moisture is expected to decrease across the
forecast area. However, afternoon showers with a few thunderstorms
are still expected mainly across west puerto rico Tuesday and Wednesday
due to local effects and diurnal heating. Hazy skies are also possible
during those days as an extensive saharan air layer will spread across
the region trailing the tropical wave. Good pooling of tropical moisture
is so far expected across the region by Thursday and through the early
part of the upcoming weekend, as another tropical wave is forecast to
enter and moves across the eastern caribbean. This should again bring
a moist and unstable weather pattern to the forecast area.

Aviation...VFR conds expected at all TAF sites except tjbq and vcty
tjmz where brief MVFR conds are possible thru 22z due to diurnally induced
shra isold tsra. Elsewhere... Vcsh possible at times. E-se sfc wnds of
15-20 kts will prevail bcmg 5-10 kts aft 23z. Passing shra en route
btw islands and over coastal waters durg prd... Few tops btw fl080-fl100.

Marine... Mariners can expect seas of 3-5 ft and winds of 10-20 kts
across the regional waters. Moderate risk of rip current will continue
across parts of the north and southeast coast beaches of puerto rico,culebra
and vieques as well as in st. Croix.

Preliminary point temps pops
Sju 77 89 78 87 40 20 40 50
stt 79 90 79 87 20 20 50 50

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Jf
long term... .Ram


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VQSP4 - 9752619 - Isabel Segunda, Vieques, PR 10 mi55 min SE 1 G 5.1 78°F
FRDP4 - 9753216 - Fajardo, PR 10 mi55 min ESE 5.1 G 8 81°F 75°F
ESPP4 - 9752695 - Esperanza, PR 10 mi55 min SE 8.9 G 12 82°F 83°F1017.2 hPa (-1.0)
41056 10 mi55 min E 12 G 16 82°F 83°F3 ft1017.3 hPa (-0.9)
YABP4 - 9754228 - Yabucoa Harbor, PR 15 mi55 min ENE 6 G 9.9 83°F
CLBP4 - 9752235 - Culebra, PR 19 mi55 min 80°F 83°F1017.4 hPa (-0.9)
41053 - San Juan, PR 32 mi55 min SE 3.9 G 7.8 81°F 82°F3 ft1017 hPa (-0.6)
SJNP4 - 9755371 - San Juan, PR 32 mi55 min SSE 5.1 G 5.1 79°F 83°F1017.7 hPa (-0.7)
JOXP4 - Jobos Bay Reserve, Puerto Rico 36 mi70 min NNE 4.1 77°F 1018 hPa73°F
CHAV3 - 9751639 - Charlotte Amalie, VI 38 mi55 min E 1 G 4.1 80°F 84°F
41052 - South of St. John, Virgin Islands 46 mi55 min ESE 14 G 18 79°F 83°F4 ft1016.2 hPa (-0.7)
LAMV3 48 mi55 min 79°F 83°F

Wind History for Isabel Segunda, Vieques Island, PR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR26 mi59 minN 010.00 miA Few Clouds79°F73°F85%1017.5 hPa

Wind History from JSJ (wind in knots)
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Last 24hrCalmE5E5E12E8E14
G21
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E17E17E11E16E14E9E6E7E4E4E5CalmCalmCalm
1 day agoE4CalmCalmE5E4E13NE12NE12NE13NE14
G21
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G19
E11NE14NE13E12E10E8E6E5SE4SE4E4SE4
2 days agoCalmCalmE8E12E15E14E14
G21
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G22
E14NE13NE16E13E15E14E11E12E8E10E7E7E5CalmCalmE4

Tide / Current Tables for Roosevelt Roads, Puerto Rico
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Roosevelt Roads
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Sun -- 04:51 AM AST     0.15 feet Low Tide
Sun -- 05:48 AM AST     Sunrise
Sun -- 07:21 AM AST     Moonrise
Sun -- 09:27 AM AST     0.60 feet High Tide
Sun -- 03:54 PM AST     -0.25 feet Low Tide
Sun -- 07:01 PM AST     Sunset
Sun -- 08:42 PM AST     Moonset
Sun -- 10:47 PM AST     1.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.80.50.30.20.20.20.40.50.60.60.50.30.1-0.1-0.2-0.3-0.20.10.40.711.21.2

Tide / Current Tables for Vieques Passage, Puerto Rico Current
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Vieques Passage
Click for Map
Sun -- 02:28 AM AST     -0.00 knots Slack
Sun -- 05:48 AM AST     Sunrise
Sun -- 05:59 AM AST     -1.13 knots Max Ebb
Sun -- 07:21 AM AST     Moonrise
Sun -- 09:42 AM AST     0.00 knots Slack
Sun -- 12:24 PM AST     0.64 knots Max Flood
Sun -- 03:20 PM AST     -0.00 knots Slack
Sun -- 06:04 PM AST     -0.57 knots Max Ebb
Sun -- 07:01 PM AST     Sunset
Sun -- 08:41 PM AST     Moonset
Sun -- 08:42 PM AST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.2-0.3-0.7-1-1.1-1-0.7-0.30.10.50.60.60.40.1-0.2-0.5-0.6-0.5-0.20.10.50.8

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 (4,6,7,8)
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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.