Monday, May21, 2018 L-36.com


Marine Weather and Tides
Puerto Real, PR

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:52AMSunset 6:58PM Monday May 21, 2018 11:09 AM AST (15:09 UTC) Moonrise 12:00PMMoonset 12:15AM Illumination 42% Phase: First Quarter Moon; Moon at 7 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- 1037 Am Ast Mon May 21 2018
Rest of today..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms in the afternoon.
Tonight..East winds 5 to 10 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.
Tuesday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Wednesday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Thursday..East winds 15 to 20 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Friday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
AMZ700 1037 Am Ast Mon May 21 2018
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure across the central atlantic will continue to yield moderate to fresh easterly winds across the local waters through midweek. Even though seas will continue to subside throughout the day, they will remain choppy through Thursday.

7 Day Forecast for Marine Location Near Puerto Real, PR
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location: 18.08, -67.18     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 210900
afdsju
area forecast discussion
national weather service san juan pr
500 am ast Mon may 21 2018

Synopsis As a mid to upper level trough (tutt low) to the
northeast of the area weakens, a ridge aloft will build across
the forecast area and hold much of this week. Moderate to fresh
easterly winds to continue as a surface high remains across the
central atlantic. Locally induced afternoon showers expected each
day with the chance for shower and thunder activity increasing by
the end of the week.

Short term Tonight through Wednesday...

partly cloudy skies were observed during the overnight hours and
this morning with a few passing showers across the coastal waters
and portions of eastern, northern and interior of puerto rico.

Rainfall accumulations were less than a tenth of an inch.

Two features that have been anchored across the region are still
present which are the surface high pressure in the north atlantic
and the tutt low to the northeast of the leeward islands. The
surface high will continue to bring brisk winds across the local
island and most of the caribbean through the short term period. The
tutt low northeast of the leeward islands will continue to roam
aimlessly through Wednesday and have no effects on the local
weather. No significant changes to the short term forecast due to
the lack of forcing in the lower and upper levels of the atmosphere
combined with the lack of low level moisture.

Sju local model and skew t shows precipitable water values ranging
from 1.26 to 1.50 over the next several days comparing these values
to climatology they rank near the 25th percentile. Analysis of
relative humidity from 1000 to 850 mb, 700 to 500 mb, and 500 to
250 mb, only the 1000 to 850 mb levels have relative humidity values
greater than 60 percent. A seasonable weather pattern is expected
to prevail during the short term period with a few isolated
showers embedded in the trades. Low level moisture will increase
on Wednesday; as a result, an increase in showers across the area.

Long term Thursday through Tuesday...

a mid to upper level ridge will hold across the forecast area
through early the upcoming weekend. This feature is expected to
slowly erode Sunday onwards as a mid to upper level trough (tutt)
develops across the central atlantic and into the eastern caribbean.

Amplifying trough will also result in moisture advection. At
lower levels, a broad high will promote east southeast winds much
of the forecast period.

If forecast holds, expect locally induced afternoon showers with
isolated thunderstorms possible across western areas of puerto
rico thu-sat with fair weather expected elsewhere. Warm to hot
temperatures particularly along the northern slopes of puerto
rico likely. As the ridge aloft erodes and upper trough amplifies
across the eastern caribbean, the chance for showers and
thunderstorms (organized convection) will increase across the
forecast area on Sunday.

Aviation Vfr conditions are expected to prevail through 22 00z
across all the terminals. Sct shra are possible near terminals tjbq
and tjmz by 21 15z. Surface winds will continue from the east between
15-20 kts with some sea breeze variations.

Marine Choppy marine conditions will continue to prevail across
most of the offshore waters during the next few with seas 4 to 6
feet and winds 20 knots or less. Small boat operators should exercise
caution.

Preliminary point temps pops
Sju 86 77 86 77 40 40 20 30
stt 87 77 87 77 20 20 20 20

Sju watches warnings advisories
Pr... High rip current risk through late tonight for northwest-western
interior.

Vi... None.

Am... None.

Short term... Tw
long term... .Om


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGIP4 - 9759110 - Magueyes Islands, PR 10 mi58 min SSE 9.9 G 14 82°F 80°F1016.5 hPa
PTRP4 20 mi35 min ENE 6 G 12 85°F
41115 - Rincon, Puerto Rico (181) 21 mi40 min 82°F2 ft
AROP4 - 9757809 - Arecibo, PR 37 mi52 min NE 7 G 11
42085 - Southeast of Ponce, PR 38 mi70 min E 16 G 18 83°F 81°F4 ft1015.8 hPa (+0.6)
MISP4 - 9759938 - Mona Island, PR 40 mi52 min 82°F 81°F1016.8 hPa

Wind History for Mayaguez, 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
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Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Mon -- 12:14 AM AST     Moonset
Mon -- 01:29 AM AST     1.21 feet High Tide
Mon -- 05:53 AM AST     Sunrise
Mon -- 08:21 AM AST     0.15 feet Low Tide
Mon -- 12:00 PM AST     Moonrise
Mon -- 01:35 PM AST     0.66 feet High Tide
Mon -- 06:56 PM AST     Sunset
Mon -- 07:35 PM AST     -0.00 feet Low Tide
Mon -- 11:50 PM AST     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.21.21.10.90.60.40.20.20.20.30.40.60.60.70.60.40.30.1000.10.30.6

Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico
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Magueyes Island
Click for Map
Mon -- 12:14 AM AST     Moonset
Mon -- 03:13 AM AST     0.62 feet High Tide
Mon -- 05:53 AM AST     Sunrise
Mon -- 11:59 AM AST     Moonrise
Mon -- 03:01 PM AST     -0.10 feet Low Tide
Mon -- 06:55 PM AST     Sunset
Mon -- 11:50 PM AST     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.60.60.60.60.60.50.50.40.30.20.10-0.1-0.1-0.1-0.1-0.1-00.10.10.20.30.4

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (11,2,3,4)
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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.