Thursday, May23, 2019 L-36.com


Marine Weather and Tides
La Parguera, 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 5:51AMSunset 6:57PM Thursday May 23, 2019 1:24 AM AST (05:24 UTC) Moonrise 11:21PMMoonset 9:56AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 858 Pm Ast Wed May 22 2019
Rest of tonight..Northwest winds 5 to 10 knots veering east after midnight. Seas 2 feet or less. Dominant period 7 seconds. Isolated Thunderstorms in the evening. Scattered showers through the night.
Thursday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Thursday night..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Scattered showers.
Friday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers.
Friday night..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Saturday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms, then isolated showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated Thunderstorms. Scattered showers.
Monday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated Thunderstorms, then isolated showers.
AMZ700 858 Pm Ast Wed May 22 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A light to moderate east southeast wind flow will continue across the local waters for the next several days. There is a chance for Thunderstorms across the western waters of puerto rico each afternoon through the end of the week. Seas will increase up to 5 feet across the atlantic waters and passages on Saturday due to a small northerly swell. A second larger swell is forecast to arrive across the atlantic waters by early next week.


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


Area Discussion for - San Juan, PR
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Fxca62 tjsj 230140
afdsju
area forecast discussion
national weather service san juan pr
940 pm ast Wed may 22 2019

Update
Showers have continue to develop across western and northwestern
areas of puerto rico this evening. These showers are producing light
to moderate rainfall. The additional overnight rainfall combining
with afternoon totals could cause urban and small stream flooding
with ponding of water on roadways. Overnight low temperatures are
forecast to be near the lower to middle 70s in lower elevations,
and the lower to middle 60s in higher elevations. Winds will be
out of the east to southeast at 10 to 15 mph.

Thursday, the mid to upper-level trough will move closer to puerto
rico, and increase upper-level instability over the northwest,
interior, and eastern puerto rico during the afternoon. Also, the
sub-tropical jet is expected to strengthen over or slightly north
of the island tomorrow through the weekend. Winds are forecast to
be near 50 to 60 kts. The proximity of the mid to upper-level
trough, and the strengthening sub-tropical jet will increase
upper-level divergence over western, interior and eastern areas
of puerto rico during the afternoon. Additionally, significant
low- level moisture will be over the area over the next several
days. Precipitable water values will range from 1.7 to 2.0 inches
tomorrow through the weekend. Therefore, as a result of the
aforementioned factors above an increase in showers and isolated
thunderstorms is expected over the next several days.

Thursday daytime high temperatures are forecast to be near the
upper 80s to the lower 90s near coastal locations, and the upper
70s to middle 80s in higher elevations. Winds will be out of the
east to southeast at 10 to 15 mph.

Aviation
Vrf conds will continue to prevail across all terminal sites
through 23 15z. Iso sct shra are possible through the overnight
hours. Then shra tsra are forecast to develop across terminals
tjbq and tjmz by 23 18z before diminishing by 23 01z. During this
time iso sct shra are possible across the eastern and interior
areas pr and the u.S. Virgin islands. Tonight winds will be out of
the east to southeast at 5 to 10 kts, then winds will increase to
10 to 15 kts with higher gusts by 23 12z. High to mid- level cu
clouds will persist through the overnight and tomorrow ranging
from 20 to 30 kft.

Marine
Seas will be up to 5 feet across all local and outer waters. Winds
will be out of the east to southeast at 10 to 15 kts. There is a
moderate risk of rip currents for the north facing beaches of puerto
rico.

Prev discussion issued 515 pm ast Wed may 22 2019
synopsis... A mid to upper level low northwest of the region will
continue to influence the weather conditions for the next few
days. However, showers and thunderstorms are expected to develop
each afternoon mainly over western pr. Elsewhere, diurnally
induced showers are expected to develop off the usvi from
streamers and over the eastern sections of pr. Tonight winds will
be out of the east to southeast at 5 to 10 kts, then by 23 12z
winds will increase to 10 to 15 kts with higher gusts.

Short term... Today through Friday...

the mid to upper level trough northeast of the bahamas will
continue to move southeast and remain north of the region through
the short term period. This will continue to provide upper level
support for thunderstorms, mainly over the interior and western
sections of pr today and on Thursday afternoon. On Friday,
although the position of the trough will be unfavorable to provide
divergence aloft... Diurnally induced afternoon showers with
isolated thunderstorms are still expected to develop over western
pr. Precipitable water content is forecast to increase by Thursday
afternoon across the region as a weak induced surface trough moves
from the east and as it interacts with the mid to upper level
trough... The shower and thunderstorm potential could increase
from the usvi to the eastern sections of pr. However, the main
threat for heavy showers with thunderstorms remains over the
interior and western sections of pr.

Long term... Saturday through Wednesday...

From previous discussion...

although weather conditions should improve somewhat on Saturday,
early morning showers across eastern pr and the us virgin islands
followed by afternoon convection along and west of the cordillera
central should not be ruled out.

Global models continues to suggest an amplifying trough
interacting with deep tropical moisture early next week, Sunday
through Tuesday. Precipitable water values could range between 1.8
and 2.2 inches through this period. GFS chiclets look reasonable
consistent during the last few runs. Therefore, if these
solutions are correct, unsettle weather conditions could be
expected the first part of the upcoming week. Confidence is
increasing somewhat but continues low-moderate, because still
far in the forecast time. Please continue to monitor the latest
forecast updates during the next several days.

Model guidances continues to suggest a tropical wave moving across
the local caribbean waters by Wednesday.

Aviation... Shra tsra across w-pr and nw-pr expected through 22 22z.

Tempo MVFR conds possible at tjbq tjmz after 22 19z, while vcsh
expected at tjps and tjsj this afternoon.VFR conds elsewhere. After
22 23z,VFR conds expected across the local terminals, but vcsh
possible at tist and tisx during the overnight hours. Local winds
from the ese at 10-15kt expected through 22 23z with sea breeze
variations and occasional gusts, gradually decreasing thereafter
through the night.

Marine... Seas will continue at less than 5 feet for the next
several days, with highest seas across the atlantic waters. East
to southeast trades will prevail between 10-15 kt. Sea breeze
variations expected across the western and northern coastal waters
of pr. A moderate risk of rip currents will continue for the
northern beaches of pr through the rest of the week.

Preliminary point temps pops
Sju 77 88 77 89 40 40 40 40
stt 78 86 77 86 50 40 40 20

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

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 mi43 min Calm G 2.9 78°F 83°F1015.1 hPa
MGZP4 - 9759394 - Mayaguez, PR 18 mi43 min 77°F 83°F1015.2 hPa
42085 - Southeast of Ponce, PR 29 mi85 min ENE 14 G 16 83°F1013.7 hPa (+0.0)
PTRP4 29 mi20 min E 2.9 G 4.1 76°F
41115 - Rincon, Puerto Rico (181) 31 mi25 min 82°F1 ft
AROP4 - 9757809 - Arecibo, PR 40 mi37 min E 2.9 G 5.1
JOXP4 - Jobos Bay Reserve, Puerto Rico 44 mi100 min NE 2.9 80°F 1016 hPa72°F
MISP4 - 9759938 - Mona Island, PR 48 mi37 min 77°F 82°F1014.9 hPa

Wind History for Magueyes Island, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from JMZ (wind in knots)
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Last 24hr----------------------------------------E6E5E8E9
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico (2)
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Magueyes Island
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Thu -- 02:58 AM AST     0.76 feet High Tide
Thu -- 05:53 AM AST     Sunrise
Thu -- 09:56 AM AST     Moonset
Thu -- 03:01 PM AST     0.04 feet Low Tide
Thu -- 06:56 PM AST     Sunset
Thu -- 11:20 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.80.70.70.70.70.60.60.50.50.30.20.1000.10.10.20.30.30.40.5

Tide / Current Tables for Guanica, Puerto Rico
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Guánica
Click for Map
Thu -- 01:38 AM AST     0.76 feet High Tide
Thu -- 05:52 AM AST     Sunrise
Thu -- 09:55 AM AST     Moonset
Thu -- 03:11 PM AST     0.04 feet Low Tide
Thu -- 06:56 PM AST     Sunset
Thu -- 11:20 PM AST     Moonrise
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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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 (1,6,7,8)
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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.