Saturday, December15, 2018 L-36.com


Marine Weather and Tides
Isabela, 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 6:52AMSunset 5:56PM Saturday December 15, 2018 5:18 PM AST (21:18 UTC) Moonrise 12:51PMMoonset 12:10AM Illumination 58% Phase: Waxing Gibbous; 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- 345 Pm Ast Sat Dec 15 2018
.small craft should exercise caution...
Tonight..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell around 4 feet.
Sunday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet.
Sunday night..East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Isolated showers.
Monday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet.
Monday night..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet in the evening. Isolated showers.
Tuesday..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated showers.
Wednesday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Scattered showers.
Thursday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. North swell around 4 feet. Isolated showers.
AMZ700 345 Pm Ast Sat Dec 15 2018
Synopsis for puerto rico and the uS. Virgin islands waters... A strong ridge of high pressure will continue to hold across the western and central atlantic waters through late Sunday. Thus strong easterly trade winds will cause hazardous seas across most of the local and outer waters through Sunday night. Early Monday the ridge across the atlantic waters will begin to weaken, as well as the trade winds across the region.


7 Day Forecast for Marine Location Near Isabela zona urbana, PR
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location: 18.5, -67.01     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 151938
afdsju
area forecast discussion
national weather service san juan pr
338 pm ast Sat dec 15 2018

Synopsis
A surface ridge of high pressure will continue to promote windy
conditions as well as patches of low-level moisture across the
region through Sunday. Therefore expect brief showers to continue
to move across portions of eastern and northern puerto rico
through Sunday evening. A drier weather pattern is forecast to
hold across the region during the long-term period due to
dominated mid to upper-level ridge which will suppress shower
activity.

Short term Tonight through Monday...

a stable weather pattern is progged to continue through the
short-term period with light showers mainly across portions of
eastern and northern puerto rico, as well as, the u.S. Virgin
islands. A mid to upper-level ridge will continue to hold over
the area and bring strong easterly winds of 15 to 20 mph with
higher gusts. Resent observations show some areas of puerto rico
received winds gusts up to 30 mph today as a result of ridging at
the surface and aloft. The surface ridge will bring patches of
low-level moisture over the region, at this time guidance shows
low-level moisture converging across the eastern and northern
puerto rico early Sunday morning through the afternoon. This
moisture is also showing on the mimic precipitable water product
as well as water vapor imagery. Precipitable water values will
increase from 1.20" today to 1.50" tomorrow; this moisture
increase will increase the chance for showers tomorrow across
puerto rico, and the u.S. Virgin islands.

Monday, the patch of moisture will move east of puerto rico as
drier air works into the area from the east. Therefore shower
activity will be limited across the area.

Long term Tuesday through Sunday...

the long-term period will be drier due to the mid to upper-level
ridge that is forecast to hold across the region. As a result of
the strong ridges aloft the atmosphere will be devoid of moisture
needed for shower development, but if showers do form they will
be brief and only produce light rainfall accumulations. Otherwise,
fair weather conditions will continue with temperatures near the
middle to upper 80s.

Aviation
Vfr. No sig wx impacts across the local flying area
durg prd. Sct ocnl bkn lyrs nr fl025... Fl050. Wnds fm e-ne 20-30 kts
blo fl250. Sfc wnds fm ese 15-20 kts W hir gusts to 25-30 kts
passing shra.Wnds bcmg fm 10 kts or less aft 15 23z. Shra en route
btw islands and ovr regional waters.

Marine
Hazardous seas of 5 to 7 feet will continue across the local and
outer waters through Sunday night. Therefore, a small craft
advisories are in effect across all the local and outer waters.

In addition, strong easterly winds of 15 to 20 kts will continue
through the overnight hours across the waters. High risk of rip
currents is in effect for the northern beaches of puerto rico and
saint thomas.

Preliminary point temps pops
Sju 74 86 74 87 40 40 10 10
stt 76 86 74 87 50 50 20 20

Sju watches warnings advisories
Pr... High rip current risk through late tonight for culebra-north
central-northeast-northwest-san juan and vicinity.

Vi... High rip current risk through late tonight for st.Thomas... St.

John... And adjacent islands.

Small craft advisory until 2 am ast Monday for st.Thomas... St.

John... And adjacent islands.

Am... High rip current risk through late tonight for 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 am ast Monday 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-mona passage southward to 17n.

Small craft advisory until 2 pm ast Monday for atlantic waters
of puerto rico and usvi from 10 nm to 19.5n.

Short term... Tw
long term... .Tw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AROP4 - 9757809 - Arecibo, PR 16 mi37 min ENE 8 G 12
41115 - Rincon, Puerto Rico (181) 17 mi19 min 82°F6 ft
MGZP4 - 9759394 - Mayaguez, PR 21 mi43 min 85°F 83°F1018.3 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 37 mi31 min SE 4.1 G 8 83°F 80°F1019.1 hPa
SJNP4 - 9755371 - San Juan, PR 47 mi43 min SE 12 G 14 83°F 82°F1019.4 hPa
41053 - San Juan, PR 48 mi49 min E 14 G 18 82°F 1018.4 hPa

Wind History for Arecibo, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Aquadilla, Rafael Hernandez Airport, PR6 mi29 minN 010.00 miOvercast82°F71°F70%1019.3 hPa

Wind History from JBQ (wind in knots)
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E6------------------E4E3E4E7E9E14
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Calm
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E6------SE3SE5E7E6SE8E10
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2 days agoE7E6E7CalmE4SE3--------------E5SE5E8E12
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Tide / Current Tables for Aguadilla, Crashboat Beach, Puerto Rico
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
Click for Map
Sat -- 12:11 AM AST     Moonset
Sat -- 02:00 AM AST     0.97 feet High Tide
Sat -- 06:52 AM AST     Sunrise
Sat -- 07:43 AM AST     0.43 feet Low Tide
Sat -- 07:49 AM AST     First Quarter
Sat -- 12:51 PM AST     Moonrise
Sat -- 02:09 PM AST     1.35 feet High Tide
Sat -- 05:55 PM AST     Sunset
Sat -- 09:03 PM AST     0.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.910.90.80.70.50.50.40.50.70.91.11.31.41.31.210.70.50.40.30.40.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Puerto Rico    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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (16,3,4,5)
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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.