Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Carolina, 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 6:26AMSunset 6:35PM Wednesday March 20, 2019 5:06 AM AST (09:06 UTC) Moonrise 6:25PMMoonset 6:15AM Illumination 99% Phase: Full Moon; Moon at 14 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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AMZ712 Coastal Waters Of Northern Puerto Rico Out 10 Nm- 402 Am Ast Wed Mar 20 2019
Today..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Scattered showers.
Tonight..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Thursday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Thursday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated showers.
Saturday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
AMZ700 402 Am Ast Wed Mar 20 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure across the central atlantic and a weak surface low pressure over the western atlantic will continue to promote a moderate east to southeast wind flow through the end of the week. Seas are expected to remain below 6 feet for the next several days.


7 Day Forecast for Marine Location Near Carolina, PR
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location: 18.46, -65.99     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 200811
afdsju
area forecast discussion
national weather service san juan pr
411 am ast Wed mar 20 2019

Synopsis Surface high pressure across the northeastern atlantic
and a surface low across the western atlantic will cause a
moderate east to southeast wind flow across the local area today.

A patch of slightly higher moisture is expected today, causing
scattered but brief showers across the local islands. More
persistent showers are possible across northwestern puerto rico
this afternoon.

Short term Today through Friday...

although a ridging pattern continues at mid-levels, a upper level
trough moving across the northwestern atlantic will push the ridge
father east. This will allow some moisture transport across the
local islands and a weaker trade wind cap. The precipitable water
values is forecast to increase from 0.9 inches (20 00z) to 1.2
inches (20 18z). As a result, scattered showers embedded in a moist
southeasterly flow will advect over the u.S. Virgin islands and
eastern pr this morning. Then, a round of showers are possible over
portions of the san juan metro area and portions of the north
central and northwest puerto rico late this morning and afternoon.

Although showers will likely develop across these areas, no
significant rainfall amounts are anticipated as the synoptic forcing
is limited.

For Thursday, moisture will drop again below normal resulting in
less cloud and shower coverage. Conditions are forecast to become
somewhat unstable again early Friday as a frontal boundary stalls to
the north-northwest and an easterly perturbation moves across the
local islands. Therefore, a few rounds of scattered showers are also
possible on Friday afternoon as the perturbation moves through the
central and western pr.

Long term Saturday through Thursday...

for the weekend, drier than normal air will return briefly on
Saturday, but another patch of moisture could move in late in the
night on Saturday into Sunday but not enough to cause any
significant amounts of rain. Even though some showers are
expected to develop across the western sections of pr in the
afternoon hours, these are not expected to be too significant. A
frontal boundary is still forecast to stay well north northwest of
the local islands, but the latest guidance has some moisture
pooling just west of the local islands on Sunday into Monday,
which could bring more significant moisture than previously
expected, but at this time the more significant rain is expected
to be just west of pr across the local waters. Long range models
are showing a surface high pressure move through the western
atlantic into the central atlantic by Monday, then a surface low
to move across the eastern seaboard of the us on Tuesday and
through midweek, causing southeasterly winds locally and possibly
dragging some moisture from the south and over the local islands,
but the mid and upper levels for those days are still not looking
favorable for prolonged and significant vertical development of
showers. The model solutions have some rainfall accumulations but
less than you would expect given the amount of moisture that it
puts over the local area with the GFS model having close to 2
inches of precipitable water. Confidence is low this far out in
the forecast, the models have changed slightly over the past few
days, but have been consistent in bringing good moisture to the
local area by midweek next week.

Aviation -shra advecting over the area may produce vcsh across
the leeward and usvi terminals as well as tjsj this morning.

However,VFR expected to prevail most of the period. Brief MVFR
vis possible with the afternoon shra across tjbq and tjmz, but
there is some uncertainty so no tempo in taf, instead a vcsh was
written in taf. Ese winds of 10-15 kts will prevail below fl100.

Marine Relatively tranquil seas are expected for the next few
days with wave heights generally between 2 and 5 feet. The local
winds are expected to be from the east to southeast at 10 to 15
knots. There will be a moderate risk of rip currents across the
north coast of puerto rico and a few beaches in northern culebra,
eastern vieques and north and eastern saint croix.

Preliminary point temps pops
Sju 86 75 89 74 30 20 20 30
stt 84 73 85 74 30 20 30 30

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Er
long term... .Ja


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41053 - San Juan, PR 6 mi36 min SE 3.9 G 5.8 74°F 1013.4 hPa
SJNP4 - 9755371 - San Juan, PR 7 mi42 min E 7 G 11 74°F 80°F1014.4 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 29 mi36 min 80°F 71°F
41056 31 mi36 min ESE 12 G 16 78°F 1013.2 hPa
ESPP4 - 9752695 - Esperanza, PR 37 mi42 min E 8 G 12 78°F 79°F1013.6 hPa
JOXP4 - Jobos Bay Reserve, Puerto Rico 37 mi81 min ENE 1.9 74°F 1015 hPa70°F
AROP4 - 9757809 - Arecibo, PR 38 mi36 min S 2.9 G 4.1
CLBP4 - 9752235 - Culebra, PR 38 mi36 min 77°F 81°F1014.2 hPa

Wind History for San Juan, PR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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Tide / Current Tables for Boca De Cangrejos, Isla Verde, San Juan, Puerto Rico
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Boca De Cangrejos
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Wed -- 02:29 AM AST     -0.04 feet Low Tide
Wed -- 06:14 AM AST     Moonset
Wed -- 06:28 AM AST     Sunrise
Wed -- 09:01 AM AST     1.35 feet High Tide
Wed -- 03:09 PM AST     0.17 feet Low Tide
Wed -- 06:25 PM AST     Moonrise
Wed -- 06:34 PM AST     Sunset
Wed -- 09:08 PM AST     1.27 feet High Tide
Wed -- 09:43 PM AST     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.1-0-00.10.40.711.31.41.31.10.80.50.30.20.20.40.711.21.31.21

Tide / Current Tables for San Juan, La Puntilla, San Juan Bay, Puerto Rico
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (5,6,7,8)
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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.