Tuesday, November30, 2021
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Marine Weather and Tides
Carolina, 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 6:38AMSunset 5:47PM Tuesday November 30, 2021 9:36 PM AST (01:36 UTC) Moonrise 2:41AMMoonset 2:56PM Illumination 12% Phase: Waning Crescent; Moon at 26 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- 903 Pm Ast Tue Nov 30 2021
Rest of tonight..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Scattered showers.
Wednesday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Isolated showers through the day.
Wednesday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Isolated showers.
Thursday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. North swell around 4 feet. Isolated showers.
Thursday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Northwest swell around 4 feet in the evening. 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 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated showers.
AMZ700 903 Pm Ast Tue Nov 30 2021
Synopsis for puerto rico and the uS. Virgin islands waters... A long period northeasterly swell will continue to affect the regional waters through Wednesday. However, seas will continue between 3 to 5 feet across all the local waters and passages. Isolated to scattered showers are expected from time to time during the next several days.


7 Day Forecast for Marine Location Near Carolina, PR
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location: 18.46, -65.99     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 010125 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 925 PM AST Tue Nov 30 2021

UPDATE. The shower activity that affected the southwestern portions of Puerto Rico gradually moved away in the evening hours. Gradually drier air will be moving into the local area tonight, causing shower activity to be limited. However, on Wednesday morning, an easterly perturbation will move in and cause an increase in moisture to the local area. The shower activity will gradually increase across the USVI early on Wednesday, then showers and thunderstorms are expected across western and southwestern PR in the afternoon, as the wind flow is expected to be from the east northeast.

AVIATION. VFR conds expected across the local terminals. There is a chance for VCSH across the USVI terminals after 01/10Z or so. Afternoon convection may cause VCTS at TJPS after 01/17Z. Winds will be light and easterly overnight, at 10 KT or less, then becoming ENE with sea breeze variations after 01/13Z.

MARINE. Slightly choppy seas expected overnight and Wednesday with wave heights up to 5 feet. Winds will be from the east at 5-15 knots through Wednesday. There is still a high risk of rip currents tonight and Wednesday for many of the local beaches.

PREV DISCUSSION. /issued 452 PM AST Tue Nov 30 2021/

SYNOPSIS . In the mid level, a ridge will continue to hold and result in a strong trade wind cap, along with stable conditions aloft. As a result, a seasonable weather pattern is also expected to persist. For tomorrow, more low-level moisture from a distant tropical wave moving by to our south, in combination with the local effects, will result in afternoon convection with isolated thunderstorms over the interior and southwestern sections of Puerto Rico. For the rest of the forecast area, isolated to scattered showers are possible. Hazardous coastal conditions will continue over the north-exposed beaches with a high risk of rip currents.

SHORT TERM . Rest of Today through Thursday . A weak through at 700 mb is expected to move over the USVI and eastern Puerto Rico overnight into Wednesday morning, bringing shower activity towards the area. For Wednesday, unstable conditions will prevail in the area, as moisture from the top of a tropical wave moves into the Caribbean, producing showers and isolated thunderstorms over the local area. For Thursday, a seasonal pattern is forecast, with easterly flow. Bands of moisture are expected in central interior and western Puerto Rico, producing scattered showers and isolated thunderstorms. Although a polar trough will travel east over the Atlantic several hundred miles away, it is going to be too far north to have any significant impacts over the local area. The U.S. Virgin Islands will generally see fair conditions with only isolated passing showers and limited rainfall, as synoptic features remain weak.

LONG TERM . Friday through Wednesday .

PREV DISCUSSION . /issued 440 AM AST Tue Nov 30 2021/

Not much has changed in the overall synoptic pattern for the long- term period. A mid-level ridge will continue to remain well entrenched across the northeast Caribbean through the period. This will hinder the development of deep, organized convective activity and thus the potential for significant, widespread rainfall activity. Meanwhile, at lower-levels, a broad surface high pressure is forecast to build across the eastern and central Atlantic. This will tighten the local pressure gradient during the upcoming weekend and thus the low-level winds will increase somewhat, resulting an advective weather pattern with patches of low-level moisture moving across the area. This will feature overnight and early morning passing showers across the local waters, with some of the activity moving into portions of eastern Puerto Rico and the USVI followed by locally induced activity during the afternoon hours across western Puerto Rico. By early next week, there are hints amongst the model guidance that a frontal boundary will move into the western Atlantic due to a extratropical low pressure system moving off the northeastern United States and into the northwestern Atlantic. This frontal system, at this time, is expected to remain far enough north to not have any direct impacts to our area with the only indirect effect being weakening the local pressure gradient and thus resulting in lighter winds.

AVIATION . Mainly VFR conditions are expected to prevail across all terminals through the forecast period. However, a weak easterly wave moving across the Leeward Islands into the eastern Caribbean Sea may increase SHRA over the flying area between the Leeward and USVI terminals during the overnight hours into Wed morning. Low level winds should prevail at 10-15 kt from the east to east-northeast.

MARINE . A long-dominant-period northeasterly swell will continue to affect the regional waters through mid-week. Seas are expected to range between 3 and 5 feet across the Atlantic and Caribbean waters. Coastal conditions will continue to be hazardous. Therefore, there is a high risk of rip currents that continues for the northwest to northeast beaches of Puerto Rico, as well as for the beaches of Culebra, Vieques and the USVI.

PRELIMINARY POINT TEMPS/POPS. SJU 75 86 76 87 / 50 20 30 40 STT 76 86 77 87 / 40 30 30 30

SJU WATCHES/WARNINGS/ADVISORIES. PR . High Rip Current Risk through late Thursday night for Culebra- North Central-Northeast-Northwest-San Juan and Vicinity- Southeast.

High Rip Current Risk through late Wednesday night for Mayaguez and Vicinity-Vieques.

VI . High Rip Current Risk through late Thursday night for St Croix.

High Rip Current Risk through late Wednesday night for St Thomas. St John. and Adjacent Islands.

AM . None.

SHORT TERM . JA LONG TERM . LIS PUBLIC DESK . JA


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41053 - San Juan, PR 6 mi37 min E 12G16 82°F 84°F4 ft1016.5 hPa (+1.9)
SJNP4 - 9755371 - San Juan, PR 7 mi49 min E 8G12 82°F 84°F1016.9 hPa
41056 31 mi37 min ENE 16G18 82°F 83°F3 ft1014.5 hPa (+1.9)
ESPP4 - 9752695 - Esperanza, PR 37 mi49 min NE 2.9G4.1 76°F 84°F1016.5 hPa
JOXP4 - Jobos Bay Reserve, Puerto Rico 37 mi52 min NNE 1.9 77°F 1018 hPa70°F
41121 38 mi41 min 83°F4 ft
AROP4 - 9757809 - Arecibo, PR 38 mi49 min ESE 5.1G7 83°F
CLBP4 - 9752235 - Culebra, PR 38 mi49 min 81°F 84°F1016.7 hPa

Wind History for San Juan, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR2 mi41 minE 510.00 miPartly Cloudy79°F71°F77%1016.8 hPa

Link to 5 minute data for TJSJ

Wind History from JSJ (wind in knots)
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This dayW5NW7--3--0--00--0SE5E10E11E13E13E13NE12E15E13E8E9--E5
1 day agoS30000000000E6E8E6SE5S6
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2 days ago--E3--NE5--00W44SW4S3NE30NE7NE10E11E13E12NE10E11E7E4E4SE3

Tide / Current Tables for Boca De Cangrejos, Isla Verde, San Juan, Puerto Rico
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Boca De Cangrejos
Click for Map
Tue -- 02:41 AM AST     Moonrise
Tue -- 06:13 AM AST     1.22 feet High Tide
Tue -- 06:39 AM AST     Sunrise
Tue -- 12:21 PM AST     0.42 feet Low Tide
Tue -- 02:56 PM AST     Moonset
Tue -- 05:42 PM AST     0.98 feet High Tide
Tue -- 05:45 PM AST     Sunset
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 San Juan, Puerto Rico (3)
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San Juan
Click for Map
Tue -- 02:41 AM AST     Moonrise
Tue -- 05:26 AM AST     1.53 feet High Tide
Tue -- 06:39 AM AST     Sunrise
Tue -- 11:29 AM AST     0.59 feet Low Tide
Tue -- 02:56 PM AST     Moonset
Tue -- 05:00 PM AST     1.34 feet High Tide
Tue -- 05:46 PM AST     Sunset
Tue -- 11:26 PM AST     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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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