Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Playita Cortada, 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 6:33AMSunset 5:50PM Sunday November 18, 2018 12:47 AM AST (04:47 UTC) Moonrise 2:53PMMoonset 2:17AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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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AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 932 Pm Ast Sat Nov 17 2018
.small craft should exercise caution...
Rest of tonight..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds.
Sunday night..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers through the night.
Monday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers.
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 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
AMZ700 932 Pm Ast Sat Nov 17 2018
Synopsis for puerto rico and the uS. Virgin islands waters... Surface high pressure over the central atlantic will continue to promote moderate winds across the local waters during the next few days. The moderate wind flow will maintain choppy seas across the offshore atlantic waters through at Sunday.


7 Day Forecast for Marine Location Near Playita Cortada, PR
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location: 17.98, -66.45     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 180106
afdsju
area forecast discussion
national weather service san juan pr
906 pm ast Sat nov 17 2018

Update The shower activity that affected western pr in the
afternoon hours had mostly dissipated by the late afternoon hours.

Thereafter fair weather has prevailed across the local islands
with scattered showers affecting the caribbean waters and now in
the evening isolated brief showers moving in across eastern pr,
but the usvi is still observing fair weather. During the night,
this is the weather that is expected, mainly isolated and brief
showers across the usvi and eastern pr with scattered showers
across the caribbean waters.

Aviation MostlyVFR conds expected across the local terminals
through the next 24 hours. There is a chance of shra across
western pr after 18 17z, which could cause vcsh at tjmz and tjbq
for a few hours tomorrow afternoon, but mostly fair weather is
expected. Winds from the east at less than 10 knots expected
overnight, increasing to 10-15 knots after 18 13z with sea breeze
variations.

Marine Small craft advisory continues for the offshore atlantic
waters due to seas up to 7 feet. Seas of 3-6 feet expected
elsewhere tonight and small craft operators are urged to exercise
caution across most of the local waters. High risk of rip currents
for the north coast of puerto rico and culebra island tonight.

Prev discussion issued 425 pm ast Sat nov 17 2018
synopsis... A seasonal weather pattern will continue to prevail
during the next few days with patches of moisture moving across
the local islands at times.

Short term... Tonight thru Monday...

a seasonal weather pattern will continue to prevail across the
local islands through the forecast period under ridge pattern
and precipitable water near or below the normal range. Therefore,
continue to expect a few passing showers embedded in the trades
which are expected to affect mainly the eastern third of puerto
rico as well as the outlying islands. In the afternoon, locally
induced showers cant be ruled out in the vicinity of lares and
las marias, westward to mayaguez, anasco and rincon. The latest
guidance,in fact, suggested bulk of moisture remaining south of
the area, with best moisture advection over land areas late
Sunday night.

Long term... Tue thru Sat issued 507 am ast Sat nov 17 2018
high pressure will continue in the west central sub-tropical
atlantic. Higher pressure will begin to build into the western
atlantic out of the northeastern united states Friday night and
Saturday of next week. Upper level high pressure will dominate the
weather pattern until Friday and Saturday when a long wave trough
will approach the area. An area of low level moisture will move
into puerto rico and the u.S. Virgin islands from the east
northeast and bring a weak wind surge. This will increase the
showers across the area on Tuesday night and Wednesday. This
showery pattern will continue on and off through the period as
patches of moisture move through. On Friday winds in the lower
levels become nearly calm as a col at the end of an approaching
frontal zone moves into the area. This will increase rain chances
but should keep the best rains over the interior of the island
Friday and Saturday. Due to the shallow nature of the best
moisture rain fall amounts will be light to moderate, though the
lack of good steering winds could leave some heavy showers in one
place for an extended period of time during Friday and Saturday
afternoons and might provoke an episode of local urban and small
stream flooding.

Aviation...VFR conditions are expected to prevail. Clouds will
continue to develop across the interior sections of pr and
downwind from the u.S. Virgin islands between 18 17-23z. -shra shra
could impact tjmz tjbq tist tisx during that time. Winds will
continue from the east to east-southeast at 10 to 15 knots with
higher gusts and sea breeze variations, diminishing at 10 kt or
less after 17 23z.

Marine... Surface high pressure across the central atlantic will
continue to produce moderate winds. This will result in choppy
seas across the atlantic offshore waters through at least Sunday.

Therefore, SCA remains in effect for amz710.

Preliminary point temps pops
Sju 76 87 76 86 10 20 20 20
stt 77 86 77 87 20 30 30 30

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

Vi... None.

Am... High rip current risk through Sunday afternoon for coastal
waters of northern puerto rico out 10 nm.

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

Short term... Ja
long term... .Om


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
42085 - Southeast of Ponce, PR 9 mi107 min ENE 14 G 18 84°F 83°F1014.8 hPa (+0.6)
JOXP4 - Jobos Bay Reserve, Puerto Rico 12 mi62 min NE 4.1 1017 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 32 mi29 min ESE 1.9 G 5.1 80°F 82°F1015.4 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 33 mi29 min 82°F 73°F
AROP4 - 9757809 - Arecibo, PR 37 mi29 min SSE 4.1 G 5.1
SJNP4 - 9755371 - San Juan, PR 38 mi35 min E 8 G 11 80°F 83°F1015.9 hPa
41053 - San Juan, PR 39 mi47 min ESE 9.7 G 14 81°F 83°F5 ft1015 hPa (+0.0)
MGZP4 - 9759394 - Mayaguez, PR 41 mi35 min 78°F 84°F1015.3 hPa

Wind History for Penuelas (Punta Guayanilla), PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from JPS (wind in knots)
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Last 24hr--------------------------------------E5NE5NE5--Calm
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Tide / Current Tables for Playa Cortada, Puerto Rico
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Playa Cortada
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Sat -- 01:27 AM AST     Moonset
Sat -- 04:38 AM AST     0.63 feet High Tide
Sat -- 06:19 AM AST     0.39 feet Low Tide
Sat -- 06:32 AM AST     Sunrise
Sat -- 02:14 PM AST     Moonrise
Sat -- 05:44 PM AST     0.81 feet High Tide
Sat -- 05:48 PM AST     Sunset
Sat -- 08:17 PM AST     0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Playa de Ponce, Puerto Rico
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Playa de Ponce
Click for Map
Sat -- 01:28 AM AST     Moonset
Sat -- 04:21 AM AST     0.63 feet High Tide
Sat -- 06:33 AM AST     Sunrise
Sat -- 06:43 AM AST     0.39 feet Low Tide
Sat -- 02:15 PM AST     Moonrise
Sat -- 05:27 PM AST     0.81 feet High Tide
Sat -- 05:49 PM AST     Sunset
Sat -- 08:41 PM AST     0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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 (23,6,7,8)
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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.