Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Aguas Claras, 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 Saturday June 24, 2017 1:31 AM AST (05:31 UTC) Moonrise 6:18AMMoonset 7:43PM Illumination 0% Phase: New Moon; Moon at 0 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- 903 Pm Ast Fri Jun 23 2017
Rest of tonight..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Saturday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers.
Saturday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers.
Sunday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers.
Sunday night..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 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms. Scattered 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 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
AMZ700 903 Pm Ast Fri Jun 23 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Strong surface high pressure ridge across the west and central atlantic will maintain moderate to locally fresh trade winds across the regional waters through at least next week. A tropical wave is forecast to enter and move across the eastern caribbean late Sunday into Monday.

7 Day Forecast for Marine Location Near Aguas Claras, PR
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location: 18.23, -65.62     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 240044
afdsju
area forecast discussion
national weather service san juan pr
844 pm ast Fri jun 23 2017

Update Scattered showers were observed during the afternoon
and early in the evening across eastern, interior and southwest
sections of puerto rico. This activity produced brief periods of
moderate to heavy rainfall over those sections of puerto rico.

Some showers were also detected over the u.S. Virgin islands as
well as across the surrounding waters. The upper level ridge is
expected to erode Saturday and Sunday, allowing more moisture
transport across the local islands. For the overnight and early
Saturday 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 Saturday afternoon, this
moisture will combine with daytime heating and local effect to
produce a new round of showers and possible thunderstorms across
interior, western and southwest puerto rico. A tropical wave is
expected to reach the region Sunday night and 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. No changes were needed to forecast
grids tonight.

Aviation MostlyVFR conditions expected across the local flying
area overnight. However showers embedded in the trades will
produce vcsh across the leewards and u.S.V.I. Terminals. Wnds fm
e-ne at 10-15kt with occasional gusts... Bcmg mostly lgt vrb winds
will continue until 24 14z, increasing from the ene at 10-15kt
after 24 14z. Some shra vcty of tjmz tjsj with brief MVFR in shra
psbl after 24 18z.

Marine Small craft should exercise caution across the nearshore
atlantic, caribbean waters and local passages due to winds up to
20 knots. The rest of the local waters can expect winds up to 15
knots and seas up to 5 feet. There is a moderate risk of rip
currents for most of the local beaches.

Prev discussion issued 354 pm ast Fri jun 23 2017
synopsis... Mid to upper level high pressure ridge will hold across
the region though the weekend. Surface high pressure will remain anchored
across the west and central atlantic through the weekend to maintain
moderate east to southeast trade winds. However, the chance for showers
and thunderstorms will increase across the region late Sunday and Monday
as a tropical wave is forecast to enter and move across the eastern
caribbean.

Short term... Rest of today through Sunday...

ridge pattern aloft will dominate the local weather conditions over
the next few days to maintain overall stable conditions across the
region. Limited moisture availability and subsidence aloft will inhibit
significant development of showers and thunderstorms across the islands
through at least Sunday. However... There will be sufficient moisture
convergence and diurnal effects to allow for afternoon convection
today and over the weekend. Showers and isolated thunderstorms
will remain possible mainly over parts of the interior and west
sections of puerto rico, as well as in and around parts of the san
juan metro area, where streamer-like showers will be likely. The
remainder of the islands should experience mostly sunny skies with
only a few afternoon showers mainly on the downwind side of the
islands.

The prevailing easterly winds will continue to transport patches
of low level moisture across the region and bring a few showers
to the windward side of the islands... Especially overnight and
during the early morning hours. Winds are expected to become more
southeasterly by Saturday, when afternoon showers should be
focused over northwest pr. For Sunday... Conditions should be
somewhat drier ahead of the tropical wave expected on Monday, but
will not rule out the chance of afternoon showers.

Long term... Monday through Saturday...

increasing moisture with showers and thunderstorm activity is expected
on Monday, as a tropical wave will enter and move across the eastern
caribbean. This feature is expected to interact with a mid to upper
level trough tutt which will relocate just northeast of the
islands. As a result expect periods of enhanced convection across
portions of the islands and coastal waters through Monday. This
will be followed by a gradual decrease in shower activity on
Tuesday and Wednesday. Another tropical wave is forecast to reach
the forecast area on Thursday. This feature will again increase
local moisture convergence which should then persist across the
forecast area through Saturday. Good moisture convergence and the
proximity of a tutt low will therefore maintain a moist and
unstable weather pattern during the latter part of next week
through Saturday. Stay tuned as we will continue to monitor and
see how this pattern unfolds.

Aviation...VFR conds entire fcst prd. However, vcsh expected
across the local terminals at times durg the rest of the afternoon
and overnight. Some shra vcty of tjmz tjsj and tjnr with brief
MVFR in shra psbl til 23 22z... BcmgVFR across entire flying area.

Wnds fm e-ne at 10-15kt with occasional gusts... Bcmg mostly lgt vrb
aft 23z, then increasing once again 10-15 kts aft 24 14z. No sig
operational wx impacts attm... Except for the diurnally induced
aftn convection mainly ovr central and W pr.

Marine... Small craft should exercise caution across the nearshore
atlantic,caribbean waters and local passages due to winds up to 20
knots. The rest of the local waters can expect winds up to 15 knots
and seas up to 5 feet. There is a moderate risk of rip currents.

The next tropical wave is expected affect the regional waters
late Sunday through Monday. This will increase the chance for
showers and thunderstorms with areas of locally heavy rainfall and
gusty winds across portions of the local waters.

Preliminary point temps pops
Sju 77 90 77 88 40 40 30 30
stt 78 89 79 90 40 40 30 30

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
FRDP4 - 9753216 - Fajardo, PR 7 mi44 min E 12 G 15 81°F 74°F
41056 9 mi62 min ENE 12 G 14 82°F 1015.9 hPa
VQSP4 - 9752619 - Isabel Segunda, Vieques, PR 11 mi44 min ESE 2.9 G 6 77°F
ESPP4 - 9752695 - Esperanza, PR 12 mi44 min ENE 1.9 G 4.1 84°F1015.6 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 17 mi44 min ENE 2.9 G 5.1 75°F
CLBP4 - 9752235 - Culebra, PR 18 mi44 min 80°F 83°F1015.7 hPa
41053 - San Juan, PR 30 mi92 min E 14 G 18 82°F 82°F4 ft1015.6 hPa (+0.0)
SJNP4 - 9755371 - San Juan, PR 31 mi44 min ESE 8.9 G 17
JOXP4 - Jobos Bay Reserve, Puerto Rico 37 mi107 min NNE 2.9 78°F 1017 hPa71°F
CHAV3 - 9751639 - Charlotte Amalie, VI 38 mi44 min E 2.9 G 5.1 81°F 84°F
41052 - South of St. John, Virgin Islands 45 mi62 min ENE 18 G 21 83°F 1014.7 hPa
LAMV3 48 mi44 min 81°F 83°F

Wind History for Fajardo, 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, PR24 mi36 minSE 410.00 miPartly Cloudy81°F73°F77%1015.8 hPa

Wind History from JSJ (wind in knots)
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Last 24hrCalmCalmE4E4CalmCalmE5E4E13NE12NE12NE13NE14
G21
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E11NE14NE13E12E10E8E6E5SE4
1 day agoSE4SE3CalmCalmCalmE8E12E15E14E14
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2 days agoE5E3CalmE4SE3E6E13
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CalmCalm

Tide / Current Tables for Roosevelt Roads, Puerto Rico
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Roosevelt Roads
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Sat -- 03:56 AM AST     0.17 feet Low Tide
Sat -- 05:48 AM AST     Sunrise
Sat -- 06:18 AM AST     Moonrise
Sat -- 08:28 AM AST     0.60 feet High Tide
Sat -- 02:58 PM AST     -0.29 feet Low Tide
Sat -- 07:01 PM AST     Sunset
Sat -- 07:43 PM AST     Moonset
Sat -- 09:55 PM AST     1.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.60.30.20.20.20.40.50.60.60.50.30.1-0.1-0.2-0.3-0.200.30.711.21.21.2

Tide / Current Tables for Vieques Passage, Puerto Rico Current
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Vieques Passage
Click for Map
Sat -- 01:38 AM AST     -0.00 knots Slack
Sat -- 05:08 AM AST     -1.12 knots Max Ebb
Sat -- 05:48 AM AST     Sunrise
Sat -- 06:18 AM AST     Moonrise
Sat -- 08:55 AM AST     0.00 knots Slack
Sat -- 11:31 AM AST     0.59 knots Max Flood
Sat -- 02:21 PM AST     -0.00 knots Slack
Sat -- 05:06 PM AST     -0.56 knots Max Ebb
Sat -- 07:01 PM AST     Sunset
Sat -- 07:42 PM AST     0.00 knots Slack
Sat -- 07:43 PM AST     Moonset
Sat -- 11:15 PM AST     0.97 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.3-0.2-0.6-1-1.1-1-0.8-0.400.40.60.60.40.1-0.2-0.5-0.6-0.5-0.20.10.50.81

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
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GOES Local Image of Puerto Rico    EDIT
Geos

Wind Forecast for (1,6,7,8)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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.