Wednesday, October20, 2021
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Marine Weather and Tides
Sabana Eneas, PR

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:22AMSunset 6:03PM Wednesday October 20, 2021 8:47 AM AST (12:47 UTC) Moonrise 6:18PMMoonset 6:18AM Illumination 100% Phase: Full Moon; Moon at 14 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- 357 Am Ast Wed Oct 20 2021
Today..East winds 5 to 10 knots. Seas 2 feet or less. Dominant period 11 seconds. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Tonight..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated showers.
Thursday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 8 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 8 seconds. Isolated showers.
Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated showers.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Isolated showers.
Sunday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Isolated showers.
AMZ700 357 Am Ast Wed Oct 20 2021
Synopsis for puerto rico and the uS. Virgin islands waters... Moderate trade winds are expected to return today and during the rest of the workweek. A tropical wave will continue to enter and move across the caribbean waters through Thursday. This will bring a slight increase in showers and isolated Thunderstorms across portions of the regional waters. A northerly swell is forecast to arrive and spread across the atlantic waters and passages by late Friday and into the weekend.


7 Day Forecast for Marine Location Near Sabana Eneas, PR
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location: 18.08, -67.1     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 200915 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 515 AM AST Wed Oct 20 2021

SYNOPSIS. A tropical wave will continue to promote good moisture content through Thursday. A weak Saharan Air Layer, with drier air and hazy skies is expected to move by Friday and continue through the weekend. Another wet weather pattern is expected by midweek next week.

SHORT TERM. Today through Friday .

Moisture continues across the region. Aloft, the ridging is being eroded, as a tropical wave and weak low- to mid-level trough approach from the east. Ahead of the tropical wave is a "dry slot," which will affect the region during the early part of the day today. Even so, precipitable water values are forecast to be within seasonal normals. This combination of sufficient moisture with conditions becoming more conducive for convection aloft is expected to result in another afternoon of wet, active weather. Winds are veering somewhat, becoming more easterly to east-southeasterly. As such, the peak in shower activity is expected to be for the interior and western/northwestern parts of Puerto Rico. Winds are increasing today, and showers will move slightly more quickly; the cloud layer mean winds will be near 10 knots. This will mitigate some of what has been seen over previous days in terms of locally high rainfall amounts from showers developing and lingering over an area, slowly drifting. That being said, periods of heavy rain are possible with these showers and thunderstorms, and the enhanced potential for flooding persists, as well as rapid river rises and mudslides in affected areas.

The tropical wave is forecast to cross the region tonight into tomorrow, and hot on its heels is another wave for tomorrow into Friday. Active weather is expected again tomorrow. The timing of the waves and dry slot, however, leaves somewhat drier air over the west during midday/afternoon tomorrow, which could inhibit some of the convective development earlier in the afternoon. Again, there will be an enhanced risk for flooding.

Friday looks to be a little drier. Moisture will gradually decrease across the area, and conditions aloft will become somewhat more stable. Still, showers and isolated thunderstorms are likely during the afternoon, as the typical diurnal pattern prevails across the region.

LONG TERM. Saturday through Wednesday .

A drying trend will continue on Saturday and Sunday in response to a building upper level ridge and a weak Saharan Air Layer over the region. In general, hazy skies with limited shower activity across the islands is expected. However, a shallow layer of moisture will be enough to trigger diurnal rainfall activity over portions of western PR each day. Across the USVI and eastern sections of PR, brief passing showers are possible at times. A low-level trough is expected to move briefly from the east on Monday, increasing slightly moisture content across the area.

Then by midweek, a wet pattern seems to unfold in response to a TUTT induced surface low developing briefly just east of the Bahamas and opening into a trough over the western Atlantic by Wednesday. Winds are expected to shift from the south, and this will pull moisture from the ITCZ across the eastern Caribbean.

AVIATION. Generally VFR conditions are expected next 24 hours. Winds increase after sunrise, generally out of the east to east- southeast around 10 knots. Afternoon convection is expected over the interior into northwest, with streamers in the east. VCTS expected for TJSJ/TJBQ, and tempo MVFR or worse cannot be ruled out. VCSH elsewhere are expected to have limited operational impacts at terminals. VCSH for TIST/TISX overnight. Winds subside after sunset.

MARINE. Winds and seas are forecast to gradually increase during the next few days, but conditions should remain below Small Craft Advisory criteria through at least Friday. Then, a long period northerly swell is forecast to move across the Atlantic waters and local passages by late Friday night into Saturday. The combination of wind driven seas and the swell should cause choppy seas around 6 feet and a high risk of rip currents along the northern beaches of the islands through the weekend.

PRELIMINARY POINT TEMPS/POPS. SJU 91 78 89 76 / 60 60 50 50 STT 88 77 89 77 / 50 50 50 40

SJU WATCHES/WARNINGS/ADVISORIES. PR . None. VI . None. AM . None.

SHORT TERM . CRS LONG TERM . DSR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGIP4 - 9759110 - Magueyes Islands, PR 8 mi48 min NE 2.9G4.1 84°F 87°F1016.1 hPa (+1.9)
MGZP4 - 9759394 - Mayaguez, PR 10 mi48 min E 2.9G4.1 81°F 86°F1016 hPa (+1.5)
PTRP4 21 mi13 min E 8G12 83°F
41115 - Rincon, Puerto Rico (181) 23 mi52 min 86°F2 ft
42085 - Southeast of Ponce, PR 33 mi108 min NNE 7.8G7.8 82°F 1 ft1015.5 hPa (+1.5)
41121 35 mi22 min 86°F2 ft
AROP4 - 9757809 - Arecibo, PR 35 mi48 min S 7G8 85°F
MISP4 - 9759938 - Mona Island, PR 44 mi48 min 79°F 84°F1017 hPa (+1.7)
JOXP4 - Jobos Bay Reserve, Puerto Rico 47 mi63 min 0 83°F 1017 hPa75°F

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

Link to 5 minute data for TJMZ

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
Wed -- 01:53 AM AST     0.27 feet Low Tide
Wed -- 06:18 AM AST     Moonset
Wed -- 06:23 AM AST     Sunrise
Wed -- 08:24 AM AST     1.30 feet High Tide
Wed -- 10:57 AM AST     Full Moon
Wed -- 02:55 PM AST     0.41 feet Low Tide
Wed -- 06:02 PM AST     Sunset
Wed -- 06:18 PM AST     Moonrise
Wed -- 08:15 PM AST     0.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico
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Magueyes Island
Click for Map
Wed -- 01:21 AM AST     0.42 feet Low Tide
Wed -- 06:17 AM AST     Moonset
Wed -- 06:23 AM AST     Sunrise
Wed -- 09:23 AM AST     0.79 feet High Tide
Wed -- 10:57 AM AST     Full Moon
Wed -- 06:02 PM AST     Sunset
Wed -- 06:17 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
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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