Tuesday, November20, 2018 L-36.com


Marine Weather and Tides
Mayagüez, 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 6:36AMSunset 5:51PM Tuesday November 20, 2018 10:19 AM AST (14:19 UTC) Moonrise 4:13PMMoonset 4:02AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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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AMZ742 Coastal Waters Of Northwestern Puerto Rico Out 10 Nm- 422 Am Ast Tue Nov 20 2018
Today..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. North swell around 4 feet.
Tonight..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Northeast swell around 4 feet. Isolated showers.
Wednesday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Northeast swell around 4 feet. Isolated showers.
Wednesday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. East swell around 4 feet. Isolated showers through the night.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Isolated showers.
Friday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 11 seconds. Isolated Thunderstorms. Scattered showers.
Saturday..East winds 5 to 10 knots. Seas 2 feet or less. Dominant period 11 seconds. Scattered showers.
AMZ700 422 Am Ast Tue Nov 20 2018
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure over the central atlantic will continue to yield a moderate trade wind flow across the local waters. This will result in choppy conditions particularly across the atlantic waters and the local passages during the next few days.


7 Day Forecast for Marine Location Near Mayag�ez, PR
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location: 18.22, -67.15     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 200825
afdsju
area forecast discussion
national weather service san juan pr
425 am ast Tue nov 20 2018

Synopsis A generally stable weather pattern to continue through
the end of the week under ridge pattern. However, patches of low
level moisture will assure passing showers later today through
this evening.

Short term Today through Thursday...

fair weather conditions with significantly limited shower activity
will prevail across the forecast area through mid morning. An
area low level moisture now locate just east of the lesser
antilles will enter the anegada passage early this morning and
then over the local islands late this morning. Most of these
showers are fast pace moving and no significant rainfall
accumulations are expected. These showers could generate a few
gusty winds as they pass by. After this fair weather conditions
will continue with significantly limited shower activity across
the forecast area this evening. This is the result of drier air
moving across the region and the effects of a surface to mid-
level ridge of high pressure located over the north central
atlantic. The occasional patch of low- level moisture is expected
once again Wednesday afternoon into Thursday. If any convection
occurs, especially in the afternoon, it will be short- lived due
to unfavorable environmental conditions.

Long term Friday through Tuesday...

on Friday although it will remain relatively stable, moisture
content across the region will begins to increase. After Saturday
the forecast will depend how close the frontal boundary will be
to our local forecast area. On the latest GFS model suggest the
highest amount of moisture will stay over the atlantic ocean but
enough moisture will reach the local area to increase the chances
of showers from Sunday through Tuesday.

Aviation Vfr conditions are expected to prevail across the
forecast area through 21 06z. As a band of moisture moves westward
across the region, expect vcsh first at tkpk tncm around 20 08z,
then tjsj at around 20 16z, tjps at around 20 22z, and tjbq at
around 20 22z. Afternoon convection will also bring vcsh to
tjmz tjbq between 20 16z and 20 22z. Winds will continue to prevail
from the east to northeast at 10 to 15 kt--highest along the coasts
with sea breeze influences and near showers and thunderstorms.

Marine Small craft operators should exercise caution as
combined seas are forecast to be between 4 to 6 feet across local
atlantic waters, anegada passage and the off shore caribbean
waters. Easterlies winds throught at least mid week on the range
of between 10 to 20 knots. There is a high risk of rip currents
across many of the local northern exposed beaches today.

A a generally stable weather pattern to continue through
the end of the week under ridge pattern. However, patches of low
level moisture will assure passing showers particularly Tuesday
night into Wednesday morning. Northerly swell will reach the local
atlantic waters on Saturday night and peak on Sunday morning.

Preliminary point temps pops
Sju 87 76 87 76 40 60 20 20
stt 86 77 86 76 60 60 10 20

Sju watches warnings advisories
Pr... High rip current risk through this afternoon for culebra-north
central-northeast-northwest-san juan and vicinity-southeast-
western interior.

Vi... None.

Am... None.

Short term... Icp
long term... .Em


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGZP4 - 9759394 - Mayaguez, PR 0 mi50 min 83°F 84°F1016.9 hPa
PTRP4 11 mi30 min ENE 5.1 G 9.9 83°F
41115 - Rincon, Puerto Rico (181) 13 mi50 min 83°F3 ft
MGIP4 - 9759110 - Magueyes Islands, PR 18 mi50 min ESE 5.1 G 11 83°F 81°F1017.3 hPa
AROP4 - 9757809 - Arecibo, PR 30 mi50 min E 8 G 12
42085 - Southeast of Ponce, PR 41 mi80 min NE 12 G 16 84°F 82°F1016 hPa (+1.7)
MISP4 - 9759938 - Mona Island, PR 43 mi50 min 83°F 82°F1016.9 hPa

Wind History for Mayaguez, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Aquadilla, Rafael Hernandez Airport, PR19 mi30 minE 15 G 2010.00 miFair82°F0°F%1017.9 hPa

Wind History from JMZ (wind in knots)
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Last 24hr----------------------------------------E6E5E8E9
1 day ago------------------------------------------------
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Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
Click for Map
Tue -- 04:02 AM AST     Moonset
Tue -- 06:22 AM AST     1.57 feet High Tide
Tue -- 06:37 AM AST     Sunrise
Tue -- 12:38 PM AST     0.60 feet Low Tide
Tue -- 04:13 PM AST     Moonrise
Tue -- 05:50 PM AST     Sunset
Tue -- 05:54 PM AST     1.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.40.60.91.21.41.61.51.41.210.70.60.60.70.91.11.21.31.210.80.50.3

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Tue -- 04:02 AM AST     Moonset
Tue -- 06:19 AM AST     1.14 feet High Tide
Tue -- 06:37 AM AST     Sunrise
Tue -- 12:33 PM AST     0.43 feet Low Tide
Tue -- 04:13 PM AST     Moonrise
Tue -- 05:51 PM AST     0.93 feet High Tide
Tue -- 05:51 PM AST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.30.40.70.911.11.110.90.70.50.40.40.50.70.80.90.90.90.70.50.30.2

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 (9,2,3,4)
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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.