Friday, February15, 2019 L-36.com


Marine Weather and Tides
La Parguera comunidad, 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 6:53AMSunset 6:29PM Friday February 15, 2019 3:18 PM AST (19:18 UTC) Moonrise 2:29PMMoonset 2:58AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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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AMZ745 Coastal Waters Of Southwestern Puerto Rico Out 10 Nm- 1020 Am Ast Fri Feb 15 2019
.small craft should exercise caution...
Rest of today..Southeast winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Tonight..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds.
Saturday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Saturday night..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers through the night.
Sunday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Monday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated 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.
AMZ700 1020 Am Ast Fri Feb 15 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure across the central atlantic will continue to yield moderate southeast winds across the regional waters today and Saturday, becoming more easterly on Sunday into Monday. Seas will continue to slowly subside today.


7 Day Forecast for Marine Location Near La Parguera comunidad, PR
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location: 17.97, -67.05     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 151426
afdsju
area forecast discussion
national weather service san juan pr
1026 am ast Fri feb 15 2019

Update
Showers continue to develop as a result of moisture that moved
across southeastern, northern and central areas of puerto rico.

These showers produced light to moderate rain, however, as a
result of their fast forward speed rainfall accumulations were
light. Recent analysis of the tjsj sounding shows veering winds
at the surface, and backing winds in the mid-levels of the
atmosphere, as well as, a strong upper-level jet. This will aid in
the development of showers during the afternoon mainly across the
interior and western areas of puerto rico. Additionally, an upper
and middle level trough is currently developing over cub, the
trough will continue to develop today through Saturday, which
will increase the divergence aloft across puerto rico. The
divergence will help showers and isolated thunderstorms develop
across the outer atlantic waters today, and tomorrow afternoon.

Aviation
Vrf conds will continue across all terminal sites through 14 05z.

Shra vcsh is possible across most of puerto rico terminals
through 16 02z. Sfc winds out of the east to southeast at 10 to 15
kts, then winds turn to the west to southwest at 050 to 010 kft
with winds of 5 to 10 kts. Tsra possible across the offshore
atlantic waters tonight.

Marine
Seas have continue to improve across most of the outer and local
waters except for the outer atlantic where seas are ranging from
5 to 7 feet. Therefore, a small craft advisory is in effect for
the offshore atlantic until this evening. Elsewhere, seas are
ranging from 3 to 5 feet. Winds are out of the east to southeast
at 10 to 15 knots.

Prev discussion issued 456 am ast Fri feb 15 2019
synopsis... Surface high pressure across the east central atlantic
and a surface low pressure in the western atlantic will keep a
moderate to fresh southeasterly wind flow today and Saturday
across the local area. Thereafter the local wind flow will
gradually become more easterly. Mid and upper level trough is
still expected to dig just west of the local islands and move
through the islands this weekend. Near normal to higher than
normal moisture expected through late Sunday night. A more stable
pattern with less moisture expected to return on Monday and
prevail through most of next week.

Short term... Today through Sunday...

a surface high pressure anchored over the central atlantic will
continue to promote moderate southeast winds through the short term
period. A mid to upper level trough currently over cuba is forecast
to move across the forecast area between late tonight through
Saturday. This will promote instability and pooling of moisture
across the region. An upper level ridge is forecast to build behind
the trough on Sunday, but lingering low level moisture will aid in
the development of afternoon showers over western pr.

For today, a mid level ridge northeast of the region will continue
to promote a weak cap at 700 mb and trade wind showers in a
southeast wind flow will move at times across portions of the usvi
and east southeast pr through the morning hours, minor rainfall
accumulations are expected. During the afternoon hours, models
suggest some divergence aloft as the trough moves over or just north
of hispaniola. This will aid in the development of showers mainly
over the northwest quadrant of pr. On Saturday, the trough is
forecast to be in a better position to enhance shower activity
across the islands and the potential for thunderstorms will increase
mainly across the atlantic waters. Urban and small stream flooding
is possible on Saturday with the heaviest showers.

Long term... Monday through Saturday...

the latest long term model guidance suggests that the weather
pattern will be more stable that what is expected this weekend.

The mid and upper levels will have a ridge of high pressure
by Monday and should prevail through the following workweek is the
models are correct. In addition, the available moisture will be
below normal with a few patches of moisture passing through. This
would cause a pattern of brief tradewind showers across the local
area, especially during the night and the morning hours that would
affect the usvi and eastern pr. The local winds will be generally
from the east and moderate, so there may be a chance of locally
induced afternoon showers across western pr. However, the mid and
upper levels would be so dry that it would be difficult to have
significant showers develop. Bottom line is that based on the
latest long term guidance, we would expect a fairly benign weather
pattern next week, with the exception of the marine conditions
which could deteriorate starting early or the middle of next
week.

Aviation... MainlyVFR conditions are expected to prevail across all
terminals through the forecast period. However, shra btw 16z-22z
over northwest pr could cause tempo MVFR conditions. Southerly winds
will prevail at 10-15 knots. TS possible across the offshore
atlantic waters tonight through Saturday.

Marine... The small craft advisory for the offshore atlantic
waters continues in effect until this evening due to seas up to 7
feet. Elsewhere, we can expect choppy seas up to 5 or 6 feet
today. Seas expected to be somewhat tranquil on Sunday into
Monday, but a northerly swell may move in by Tuesday or Wednesday,
causing the marine conditions to deteriorate and become hazardous
for the next several days thereafter.

Preliminary point temps pops
Sju 87 75 87 75 50 30 40 60
stt 82 75 82 74 20 40 40 60

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... Small craft advisory until 8 pm ast this evening 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
MGIP4 - 9759110 - Magueyes Islands, PR 0 mi36 min SSE 8.9 G 13 82°F 79°F1015.1 hPa
MGZP4 - 9759394 - Mayaguez, PR 18 mi36 min 83°F 81°F1014.1 hPa
42085 - Southeast of Ponce, PR 29 mi78 min ESE 12 G 14 80°F4 ft1014.8 hPa (-1.7)
PTRP4 29 mi23 min SSE 8 G 16 86°F
41115 - Rincon, Puerto Rico (181) 31 mi18 min 80°F3 ft
AROP4 - 9757809 - Arecibo, PR 40 mi30 min NNE 7 G 8
JOXP4 - Jobos Bay Reserve, Puerto Rico 44 mi93 min ESE 8 83°F 1017 hPa70°F
MISP4 - 9759938 - Mona Island, PR 48 mi30 min 81°F 81°F1014.5 hPa

Wind History for Magueyes Island, PR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico
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Magueyes Island
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Fri -- 02:57 AM AST     Moonset
Fri -- 06:55 AM AST     Sunrise
Fri -- 08:11 AM AST     0.60 feet High Tide
Fri -- 02:29 PM AST     Moonrise
Fri -- 06:29 PM AST     Sunset
Fri -- 09:17 PM AST     -0.25 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-00.10.20.30.40.50.60.60.60.50.50.40.20.10-0-0.1-0.2-0.2-0.2-0.2-0.2-0.2

Tide / Current Tables for Guanica, Puerto Rico
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Guánica
Click for Map
Fri -- 02:57 AM AST     Moonset
Fri -- 06:54 AM AST     Sunrise
Fri -- 07:13 AM AST     0.56 feet High Tide
Fri -- 02:28 PM AST     Moonrise
Fri -- 06:28 PM AST     Sunset
Fri -- 08:54 PM AST     -0.38 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 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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Wind Forecast for (14,3,4,5)
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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.