Monday, March8, 2021
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Marine Weather and Tides
Puerto Real, PR

Version 3.4
NOTICE
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 6:40AMSunset 6:37PM Monday March 8, 2021 10:49 AM AST (14:49 UTC) Moonrise 3:12AMMoonset 2:27PM Illumination 25% Phase: Waning Crescent; Moon at 25 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- 528 Am Ast Mon Mar 8 2021
Today..East winds 5 to 10 knots veering southeast in the afternoon. Seas 1 to 3 feet. Dominant period 10 seconds.
Tonight..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated showers.
Tuesday..Southeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 8 seconds.
Tuesday night..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Wednesday..East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. Scattered showers.
Thursday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 9 seconds. Isolated showers.
Friday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
AMZ700 528 Am Ast Mon Mar 8 2021
Synopsis for puerto rico and the uS. Virgin islands waters... Light to moderate east to east-northeast winds will prevail today, with choppy seas across the offshore atlantic waters and local passages. A northerly swell will invade and spread across the atlantic waters on Tuesday resulting in choppy and hazardous seas, winds are also forecast to increase and become more northeasterly.


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 080829 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 429 AM AST Mon Mar 8 2021

SYNOPSIS.

Relatively fair and stable weather conditions will prevail through the middle of the week. An induced surface trough will end the stable weather conditions and increase moisture content and shower activity. A northerly swell will cause hazardous seas starting on Tuesday. Late this week into the weekend looks unsettled as an upper-level trough moves near the area and increases instability and moisture content.

SHORT TERM. Today through Wednesday .

A surface low pressure north of the local area is moving quickly to the north as a surface high pressure enters the western Atlantic. As the surface low moves north, its associated cold front will get a little closer to the local islands, but will remain offshore and it is not expected to directly impact the local islands in the short term period, though it will cause slightly higher moisture than normal over the local Atlantic and the waters west of PR. The surface high pressure that will enter the western Atlantic over the next few days, will gradually cause ENE winds by this afternoon and then tighten the local pressure gradient, causing breezy conditions for Tuesday in particular. In the mid to upper levels, there is a broad trough that could cause an enhancement in shower activity over PR this afternoon, but the mid to upper level trough will lift and weaken over the local area by Tuesday and Wednesday, causing less instability over the local area. As far as temperatures go, a return to near normal temps are expected, with high temps in the mid 80s across the lower elevations once again.

For today, overall near to slightly below normal moisture is expected across the islands, with the exception of the western portions of the local forecast area. This means that isolated to scattered brief showers are to be expected over the local waters, USVI and eastern PR in the morning, while central to western PR is forecast to have locally induced showers, aided by slightly higher moisture and mid to upper level trough. These showers are expected to produce more rainfall accumulations and could cause minor ponding in poor drainage areas.

For Tuesday, the sfc high pressure will tighten the pressure gradient, causing breezy conditions with E to ENE winds up to around 20 mph. This will result in brief trade wind showers once again in the morning, affecting mainly the USVI and eastern PR. That said, in the afternoon, especially past the middle afternoon hours, locally induced showers could develop across western PR as well, but the winds should be enough to cause the showers to move quickly and therefore not expected to cause too much accumulation.

By Wednesday, the frontal boundary to our northwest could start losing definition and will start fragmenting. This will cause higher moisture to move into the local waters and western PR by Wednesday afternoon and Wednesday night. This could then cause shower activity across western PR in the afternoon, and widely scattered showers over the local Atlantic waters during the night.

LONG TERM. Thursday through Monday .

Global models are in reasonably good agreement on the evolution of the long-term period. An old frontal boundary washes out northwest of Puerto Rico through the middle of the work week. East to northeast winds will advect pockets of moisture from the Atlantic waters over the local area periodically. The near-normal moisture coupled with local and diurnal effects will induce isolated to scattered showers during the afternoons over portions of northwestern Puerto Rico. A surface-high pressure re-establishes itself over the Atlantic waters and increases local winds through Friday.

Late this week, the EURO and GFS model deepens an upper-level trough north of Puerto Rico this weekend as several short-waves and a mid-level low round the base of the trough. Guidance puts Puerto Rico in the right entrance of the trough Sunday into Monday. Relatively humidity in the mid to upper-level will range from 30 to 60 percent, the highest values during the forecast period, and 500 mb heights will range from -8 to -11 degrees Celsius. The upper-level instability and meager mid to upper-level moisture coupled with local effects will cause isolated to scattered showers during the weekend. The instability and diurnal heating could support isolated thunderstorms development across the outer Atlantic Waters and portions of northwestern Puerto late this week into the weekend. Weather conditions are forecast to improve early next week when the trough lifts north of the region.

AVIATION.

VFR conditions to prevail through the forecast period. Brief VCSH could affect the IST/ISX and JSJ terminals this morning. However, no significant hazards are expected across the local terminals. Light and variable winds through 08/14Z, increasing to 10 to 15 knots from the E-ENE thereafter with sea breeze variations.

MARINE.

Choppy conditions are expected across the outer Atlantic waters with seas up to 6 feet. Small craft operators should exercise caution due to seas up to 6 feet. Relative tranquil marine conditions are expected elsewhere with seas up to 5 feet. There is a moderate risk of rip currents across northern sections of Puerto Rico, all the eastern beaches of Vieques and Culebra, as well eastern tip of St. Croix. Winds will be from the east ranging from 10 to 15 knots with higher gusts.

A northerly swell will move into the outer Atlantic waters on Tuesday and cause hazardous marine conditions with seas up to 8 feet. Small Craft Advisory goes in effect Tuesday morning due to the hazardous seas.

PRELIMINARY POINT TEMPS/POPS. SJU 86 74 84 73 / 20 20 20 40 STT 85 72 84 73 / 30 30 30 40

SJU WATCHES/WARNINGS/ADVISORIES. PR . High Rip Current Risk from Tuesday morning through late Wednesday night for North Central-Northwest.

VI . None. AM . Small Craft Advisory from 8 AM Tuesday to 5 AM AST Thursday for Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N.



SHORT TERM . JA LONG TERM . TW PUBLIC DESK . 99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGIP4 - 9759110 - Magueyes Islands, PR 10 mi49 min SSE 8 G 11 83°F 79°F1019.7 hPa (+1.6)
MGZP4 - 9759394 - Mayaguez, PR 10 mi49 min 79°F 80°F1020.4 hPa (+1.7)
PTRP4 20 mi19 min ENE 2.9 G 8 87°F
41115 - Rincon, Puerto Rico (181) 21 mi53 min 80°F2 ft
42085 - Southeast of Ponce, PR 37 mi109 min NE 7.8 G 9.7 79°F 80°F3 ft1018.5 hPa (+2.3)
MISP4 - 9759938 - Mona Island, PR 40 mi49 min 80°F 79°F1020.5 hPa

Wind History for Mayaguez, 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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Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Mon -- 03:11 AM AST     Moonrise
Mon -- 04:58 AM AST     1.08 feet High Tide
Mon -- 06:42 AM AST     Sunrise
Mon -- 11:43 AM AST     0.27 feet Low Tide
Mon -- 02:27 PM AST     Moonset
Mon -- 04:09 PM AST     0.54 feet High Tide
Mon -- 06:36 PM AST     Sunset
Mon -- 10:41 PM AST     -0.20 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.40.60.911.110.90.70.50.40.30.30.30.40.50.50.50.40.30.1-0.1-0.2-0.2

Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico
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Magueyes Island
Click for Map
Mon -- 03:10 AM AST     Moonrise
Mon -- 06:41 AM AST     Sunrise
Mon -- 07:43 AM AST     0.56 feet High Tide
Mon -- 02:26 PM AST     Moonset
Mon -- 06:36 PM AST     Sunset
Mon -- 08:24 PM AST     -0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.100.10.20.30.40.50.60.60.50.50.40.30.20.1-0-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2

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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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