Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Las Marías, PR

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:34AMSunset 5:52PM Thursday November 15, 2018 7:42 PM AST (23:42 UTC) Moonrise 1:00PMMoonset 12:00AM Illumination 54% Phase: First Quarter Moon; Moon at 8 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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AMZ742 Coastal Waters Of Northwestern Puerto Rico Out 10 Nm- 428 Pm Ast Thu Nov 15 2018
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.
Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Scattered Thunderstorms in the afternoon.
Friday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Isolated showers.
Saturday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. East swell around 4 feet in the afternoon. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Saturday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 12 seconds. Isolated Thunderstorms. Scattered showers.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 12 seconds. Isolated Thunderstorms. Scattered showers.
Tuesday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 12 seconds. Isolated Thunderstorms. Scattered showers.
AMZ700 428 Pm Ast Thu Nov 15 2018
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure over the central atlantic will continue to generate moderate to fresh trade winds during the next few days. These brisk trade winds will maintain hazardous marine conditions through the weekend.


7 Day Forecast for Marine Location Near Las Mar�as, PR
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location: 18.22, -67     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 152114
afdsju
area forecast discussion
national weather service san juan pr
514 pm ast Thu nov 15 2018

Synopsis Surface high pressure will continue to build across the
central atlantic. A surface low pressure and associated front over
the eastern coast of u.S.A. Will move over the western and northern
atlantic through the weekend. Meanwhile a mid level ridge is
forecast to hold over the subtropical atlantic just northeast of the
region for the next several days. Breezy conditions are expected
through the weekend. Patches of low level moisture embedded on
the trade winds will continue to move at times across the islands.

Short term Today through Saturday...

scattered to numerous showers with thunderstorms were observed
across much of the region today. The heaviest rainfall activity
was observed over portions of southeastern, the interior and
northwestern puerto rico. Up to 2.5 inches of rain was estimated
across these areas. This activity was associated to residual low
level moisture from a tropical wave now located west of haiti and
a weak upper level low over hispaniola, which provided divergence
aloft. For tonight, a drier air mass is expected to briefly move
from the east and limit shower activity over the islands.

On Friday and Saturday, a wind surge in response to a high
pressure northeast of the area will bring patches of low level
moisture and breezy conditions across the region. Passing showers
should move at times across the usvi and the eastern portions of
pr through the short term period. Afternoon convection is expected
to develop, mainly over western pr and from streamers across the
smaller islands and from the eastern mountains of pr. However,
breezy steering winds will keep moderate rainfall accumulations
across the islands with the exception where thunderstorms
develop.

Long term Sunday through Wednesday... Issued 607 am ast thu
nov 15 2018
mid level ridge will build and dominate the local weather
conditions Sunday into early next week. At upper levels, a tutt
low will establish just northeast of the leeward islands. Both
features favors the erosion of mid-upper level moisture across
the local region. This will likely result in fair weather
conditions across puerto rico and the u.S. Virgin islands.

However, trade wind showers will continue to reach portions of the
u.S. Virgin islands and eastern puerto rico at times but the
frequency will be low. With mid level temperatures rising due to
the presence of the ridge, only a couple of thunderstorms will
form over western puerto rico each afternoon. This typical
pattern will likely persist through most of next week.

Aviation Shra will affect pr-taf sites through this evening.

Shra should diminish across usvi terminals the next few hours. Mount
obsc along the cordillera central is expected and shra tsra will
impact tjbq tjmz and the vcty of tjps thru 23z. Shra will
diminish over the flying area aft 23z but some -shra shra will
return to the usvi ERN pr and the leeward islands terminals aft
16 08z. Sfc winds will be ese at 12 to 18 knots with some sea
breeze influences becoming calm to light and variable after 23z.

Marine Choppy seas will continue through the weekend across
most of the regional waters. Seas are expected to range between
6-8 feet and occasionally up to 10 feet. Higher seas expected
across the offshore atlantic waters and the anegada passage. Small
craft advisories are in effect for all local waters except in the
coastal waters of southern and western pr. A wind surge will keep
winds up to 20 knots with higher gusts during the next few days.

A high rip current risk continues for the northern beaches of pr
and st. Croix.

Preliminary point temps pops
Sju 76 87 77 87 50 50 60 60
stt 79 85 78 86 50 70 50 50

Sju watches warnings advisories
Pr... High rip current risk through Friday afternoon for north
central- northwest-san juan and vicinity-western interior.

Vi... High rip current risk through Friday afternoon for st croix.

Am... Small craft advisory until 8 pm ast Saturday for anegada passage
southward to 17n-caribbean waters of puerto rico from 10 nm
to 17n-coastal waters of northern puerto rico out 10 nm-
coastal waters of northern usvi and culebra out 10 nm-
coastal waters of southern usvi vieques and eastern puerto
rico out 10 nm.

Small craft advisory until 2 pm ast Friday for mona passage
southward to 17n.

Small craft advisory until 8 pm ast Sunday for atlantic waters
of puerto rico and usvi from 10 nm to 19.5n.

Short term Ds

Aviation Cam


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGZP4 - 9759394 - Mayaguez, PR 8 mi42 min 76°F 84°F1013.9 hPa (+0.0)
MGIP4 - 9759110 - Magueyes Islands, PR 17 mi42 min ESE 2.9 G 8.9 76°F 82°F1014.1 hPa (+0.0)
PTRP4 17 mi27 min E 5.1 G 8.9 75°F
41115 - Rincon, Puerto Rico (181) 18 mi42 min 83°F3 ft
AROP4 - 9757809 - Arecibo, PR 24 mi42 min SE 5.1 G 6
42085 - Southeast of Ponce, PR 35 mi102 min NNE 7.8 G 9.7 79°F 83°F1014.1 hPa (+1.1)
JOXP4 - Jobos Bay Reserve, Puerto Rico 45 mi57 min Calm 1016 hPa

Wind History for Mayaguez, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Aquadilla, Rafael Hernandez Airport, PR21 mi52 minESE 710.00 miClear75°F0°F%1014.9 hPa

Wind History from JMZ (wind in knots)
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Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
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Thu -- 01:28 AM AST     0.97 feet High Tide
Thu -- 06:34 AM AST     Sunrise
Thu -- 07:25 AM AST     0.39 feet Low Tide
Thu -- 10:54 AM AST     First Quarter
Thu -- 12:59 PM AST     Moonrise
Thu -- 02:25 PM AST     1.55 feet High Tide
Thu -- 05:51 PM AST     Sunset
Thu -- 09:21 PM AST     0.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.9110.90.80.60.50.40.40.50.711.21.41.51.51.41.210.80.70.60.60.7

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Thu -- 01:25 AM AST     0.70 feet High Tide
Thu -- 06:34 AM AST     Sunrise
Thu -- 07:20 AM AST     0.29 feet Low Tide
Thu -- 10:54 AM AST     First Quarter
Thu -- 12:59 PM AST     Moonrise
Thu -- 02:22 PM AST     1.13 feet High Tide
Thu -- 05:51 PM AST     Sunset
Thu -- 09:16 PM AST     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.60.50.40.30.30.30.40.50.70.911.11.110.90.70.60.50.40.40.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for (18,4,5,8)
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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.