Wednesday, May22, 2019 L-36.com


Marine Weather and Tides
Luis M. Cintrón, 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 5:45AMSunset 6:52PM Wednesday May 22, 2019 8:39 PM AST (00:39 UTC) Moonrise 10:28PMMoonset 8:57AM Illumination 84% 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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AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 432 Pm Ast Wed May 22 2019
Tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers through the night. Isolated Thunderstorms after midnight.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Thursday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Friday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Saturday..East winds 10 to 15 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. Scattered showers and isolated Thunderstorms.
Monday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 12 seconds. Numerous showers and isolated Thunderstorms.
AMZ700 432 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.


7 Day Forecast for Marine Location Near Luis M. Cintr�n, PR
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location: 18.32, -65.64     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 222115
afdsju
area forecast discussion
national weather service san juan pr
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.

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... Ds tw
aviation... Ja


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41056 10 mi39 min E 12 G 14 81°F 82°F1013.3 hPa (+0.3)
CLBP4 - 9752235 - Culebra, PR 18 mi39 min 82°F 84°F1014.6 hPa (+0.5)
ESPP4 - 9752695 - Esperanza, PR 18 mi45 min ESE 7 G 11 81°F 84°F1014.4 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 21 mi39 min 83°F 74°F
41053 - San Juan, PR 27 mi39 min E 12 G 16 82°F 82°F3 ft1013.2 hPa (+0.4)
SJNP4 - 9755371 - San Juan, PR 27 mi39 min E 12 G 14 81°F 82°F1014.1 hPa (+0.5)
CHAV3 - 9751639 - Charlotte Amalie, VI 38 mi39 min 81°F 1014.3 hPa (+0.6)
JOXP4 - Jobos Bay Reserve, Puerto Rico 40 mi54 min E 2.9 81°F 1015 hPa73°F
41052 - South of St. John, Virgin Islands 47 mi39 min E 12 G 14 81°F 82°F3 ft1013.3 hPa (+0.6)
LAMV3 49 mi39 min 80°F 84°F

Wind History for Fajardo, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR21 mi43 minE 910.00 miA Few Clouds81°F73°F77%1014 hPa

Wind History from JSJ (wind in knots)
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Last 24hrE5E6E6SE3E4CalmCalmSE3CalmE5CalmE7E8E10E9
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1 day agoE6CalmSE3CalmCalmS3S3CalmCalmCalmCalmSE5SE6E9SE9NE9NE13
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2 days agoE6E4E4CalmSE4SE3SE3SE5SE3E6SE5E9E11E16E12E15NE103E11SE6E9E8E6E3

Tide / Current Tables for Playa de Fajardo, Puerto Rico
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Playa de Fajardo
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Wed -- 05:46 AM AST     Sunrise
Wed -- 06:16 AM AST     0.25 feet Low Tide
Wed -- 08:57 AM AST     Moonset
Wed -- 11:00 AM AST     0.69 feet High Tide
Wed -- 04:52 PM AST     -0.14 feet Low Tide
Wed -- 06:51 PM AST     Sunset
Wed -- 10:28 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.41.20.80.60.30.30.30.40.50.60.70.60.50.30.1-0.1-0.1-0.10.20.50.81.21.4

Tide / Current Tables for Vieques Passage, Puerto Rico Current
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Vieques Passage
Click for Map
Wed -- 01:02 AM AST     0.75 knots Max Flood
Wed -- 04:11 AM AST     -0.00 knots Slack
Wed -- 05:47 AM AST     Sunrise
Wed -- 07:47 AM AST     -0.94 knots Max Ebb
Wed -- 08:57 AM AST     Moonset
Wed -- 11:36 AM AST     0.00 knots Slack
Wed -- 02:18 PM AST     0.51 knots Max Flood
Wed -- 05:20 PM AST     -0.00 knots Slack
Wed -- 06:50 PM AST     Sunset
Wed -- 07:51 PM AST     -0.37 knots Max Ebb
Wed -- 10:18 PM AST     0.00 knots Slack
Wed -- 10:27 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.40.1-0.3-0.7-0.9-0.9-0.8-0.6-0.20.10.40.50.50.30.1-0.2-0.3-0.4-0.3-0.10.2

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (20,4,5,8)
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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.