Monday, May29, 2017 L-36.com


Marine Weather and Tides
Naranjito, PR

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:46AMSunset 6:57PM Monday May 29, 2017 1:08 PM AST (17:08 UTC) Moonrise 9:42AMMoonset 10:58PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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- 1022 Am Ast Mon May 29 2017
.small craft should exercise caution...
Rest of today..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Numerous showers and isolated Thunderstorms.
Tonight..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms.
Tuesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms through the day. Scattered showers in the afternoon.
Tuesday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms in the evening, then isolated showers after midnight.
Wednesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms, then isolated showers.
Thursday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated Thunderstorms, then isolated showers.
Friday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms. Scattered showers.
AMZ700 1022 Am Ast Mon May 29 2017
Synopsis for puerto rico and the uS. Virgin islands waters... A tropical wave will continue to move across the regional waters through Tuesday. This will increase the chance for Thunderstorms with areas of locally heavy rainfall across the regional waters. Local seas are expected to remain below 5 feet for the next several days.

7 Day Forecast for Marine Location Near Naranjito, PR
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location: 18.31, -66.18     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 291512
afdsju
area forecast discussion
national weather service san juan pr
1112 am ast Mon may 29 2017

Update Scattered showers have affected portions of eastern pr
and briefly the usvi. Satellite imagery indicated that cloudiness
if gradually increasing across the local islands and it is
expected to continue increasing through the afternoon, but pr has
a higher chance of significant rain than the usvi. The inherited
forecast still stands for pr, numerous showers and isolated
thunderstorms are expected this afternoon as the increase in
available moisture combines with the diurnal heating and local
effects. The usvi may observe more modest amounts of rain.

Aviation Shra tsra expected this afternoon around the
terminals in pr, which can cause moments of MVFR conditions,
particularly for tjsj, tjmz, and tjps after 29 17z. Isold sct
shra tsra for areas around tist tisx. Winds from the ese at
10-15kt with gusts up to 25kt possible. Weather to improve after
29 23z.

Marine Local buoys confirm the forecast of seas 3-5ft across
the regional waters. Winds generally up to 15kt with some areas up
to 20kt across the coastal waters of northern pr. Moderate risk of
rip currents for north pr and several beaches in SE and southern
pr, also moderate risk for several beaches in st. Croix,
particularly the southern coast and some beaches in the eastern
and northern coast.

Prev discussion issued 453 am ast Mon may 29 2017
synopsis... A tropical wave will affect the local region through
Tuesday. A deep long wave trough will linger across the region
through much of the work week.

Short term... Monday through Wednesday...

cloudy skies prevailed across the local islands overnight and early
this morning with numerous showers noted across the surrounding
waters, usvi and E pr. Rainfall accumulations associated with these
showers and thunderstorms were between 2 and 4 inches across ne
puerto rico. The overnight temperatures were in the upper 70s to low
80s across the lower elevations and in the low 70s across the higher
elevations. Winds were east southeast at 10 mph or less.

A developing mid to upper level trough across the west tropical
atlantic and into the central and eastern caribbean will continue to
interact with a tropical wave across the local area to result in
periods of showers and thunderstorms throughout the day. During the
early morning hours, the shower and thunder activity is expected
across the usvi and the eastern half of puerto rico, spreading
across the western half of puerto rico in the late morning and
afternoon hours. Although the tropical wave is expected to be away
from the forecast area on Tuesday, lingering moisture will continue
to prevail and due to the proximity of the aforementioned trough,
another round of showers and thunderstorms is likely. Low level
moisture is expected to decrease somewhat by midweek, but showers
and thunderstorms are still expected particularly across the
interior of puerto rico as well as the usvi. There is a high
potential for urban and small stream flooding early this week.

Long term... Thursday through Tuesday...

a deep long wave trough will linger across the region through the
forecast period. This feature will enhance the development of
showers and thunderstorms across the region. At the surface, a
weak tropical wave is expected to approach the local region by the
weekend. At this time, global models indicated main weather
associated with this wave will remain south of the local area.

Aviation... Periods of MVFR conds in shra tsra will remain possible
at all TAF sites as a tropical wave and associated moisture moves
across the eastern caribbean today. Ese winds 10-15 knots with sea
breeze variations are expected.

Marine... A tropical wave will continue to move across the
regional waters through Tuesday. This will increase the chance for
thunderstorms with areas of locally heavy rainfall across the
regional waters. Local seas are expected to remain below 5 feet
for the next several days.

Preliminary point temps pops
Sju 89 78 84 77 60 50 50 20
stt 88 79 81 77 60 60 60 50

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Ja
long term... .99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SJNP4 - 9755371 - San Juan, PR 11 mi51 min E 16 G 19
41053 - San Juan, PR 12 mi69 min ENE 12 G 16 82°F 82°F4 ft1017.7 hPa (-0.0)
JOXP4 - Jobos Bay Reserve, Puerto Rico 25 mi84 min E 8 86°F 1019 hPa76°F
YABP4 - 9754228 - Yabucoa Harbor, PR 25 mi51 min ENE 8 G 12
FRDP4 - 9753216 - Fajardo, PR 29 mi51 min ESE 12 G 16 83°F 75°F
AROP4 - 9757809 - Arecibo, PR 30 mi51 min ENE 8.9 G 14 83°F
42085 - Southeast of Ponce, PR 36 mi69 min E 16 G 18 85°F 83°F4 ft1017 hPa (+0.4)
41056 38 mi39 min E 14 G 18 82°F 1018.4 hPa
VQSP4 - 9752619 - Isabel Segunda, Vieques, PR 40 mi51 min SE 6 G 13 86°F
ESPP4 - 9752695 - Esperanza, PR 40 mi51 min SE 12 G 15 83°F 85°F1018.2 hPa
CLBP4 - 9752235 - Culebra, PR 47 mi51 min 87°F 84°F1018.5 hPa

Wind History for San Juan, PR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR13 mi73 minENE 1010.00 miThunderstorm83°F77°F82%1018.3 hPa

Wind History from JSJ (wind in knots)
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Last 24hrE19E17E17E15E11E13E11E8E8E7E5E5E6E6SE5CalmSE5S3SE5E7E9
G18
CalmNE10E9
1 day agoNE17
G21
E19NE15E13E12E11E10E11E8E8E8SE5E4CalmCalmCalmCalmCalmE5E6E9NE15NE17E18
G23
2 days agoNE13NE12
G22
3S5CalmE8E6E6E5E5E4E4E4SE4SE3CalmSE3E5E8E12E10NE14NE17NE15

Tide / Current Tables for San Juan, La Puntilla, San Juan Bay, Puerto Rico
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San Juan
Click for Map
Mon -- 05:47 AM AST     Sunrise
Mon -- 06:38 AM AST     0.16 feet Low Tide
Mon -- 09:41 AM AST     Moonrise
Mon -- 11:42 AM AST     0.87 feet High Tide
Mon -- 05:41 PM AST     -0.26 feet Low Tide
Mon -- 06:56 PM AST     Sunset
Mon -- 10:57 PM AST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.91.71.51.10.70.40.20.20.30.50.70.80.90.80.50.2-0-0.2-0.2-0.10.20.61.11.4

Tide / Current Tables for San Juan, Puerto Rico
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San Juan
Click for Map
Mon -- 05:47 AM AST     Sunrise
Mon -- 06:39 AM AST     0.17 feet Low Tide
Mon -- 09:41 AM AST     Moonrise
Mon -- 11:44 AM AST     0.89 feet High Tide
Mon -- 05:43 PM AST     -0.24 feet Low Tide
Mon -- 06:56 PM AST     Sunset
Mon -- 10:57 PM AST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.91.81.51.10.70.40.20.20.30.50.70.90.90.80.60.3-0-0.2-0.2-0.10.20.61.11.5

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
carb_satellite

GOES Local Image of Puerto Rico    EDIT
Geos

Wind Forecast for (13,3,4,5)
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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.