Monday, March1, 2021
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Marine Weather and Tides
Las Croabas, 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 6:39AMSunset 6:29PM Monday March 1, 2021 9:07 PM AST (01:07 UTC) Moonrise 9:00PMMoonset 8:29AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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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AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 341 Pm Ast Mon Mar 1 2021
.small craft advisory in effect through Tuesday afternoon...
Tonight..Northeast winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 8 seconds. East swell around 4 feet. Scattered showers.
Tuesday..Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Scattered showers.
Tuesday night..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.
Wednesday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.
Wednesday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated showers.
Thursday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Isolated showers.
Friday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Numerous showers.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
AMZ700 341 Pm Ast Mon Mar 1 2021
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure across the western atlantic ocean will continue to produce fresh to occasionally strong east northeast winds across the regional waters through tomorrow. This will continue to result in hazardous seas and small craft advisory conditions will last through Tuesday afternoon, and possibly longer for the outer atlantic waters. Only weak isolated showers are expected tonight and tomorrow.


7 Day Forecast for Marine Location Near Las Croabas, PR
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location: 18.34, -65.57     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 011927 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 327 PM AST Mon Mar 1 2021

SYNOPSIS.

Calm weather is expected for the next few days given dominant high pressure and plenty of dry air across the region. Passing showers will be possible, primarily impacting eastern Puerto Rico. Winds have slowed down just a bit today, but will remain at or above average for the next few days due to high surface pressure to our north. More moisture moves in for the weekend from the south that will give us a better chance for shower activity. Seas will remain hazardous into tomorrow.

SHORT TERM. Rest of Today through Wednesday .

Fairly uneventful weather conditions are expected in the short term due to high pressure and stable conditions over the region. Mid to upper level high pressure is currently building over the region, and its effects will last the full duration of the short term period. Dry and warm air at mid-levels, with an inversion around 700 mb, will keep showers fairly weak and unimpactful. Near the surface, high pressure to our north will keep the easterly trade winds brisk, but a bit weaker during the next few days compared to the last few days.

Below normal moisture content will be with us through tomorrow under east-northeasterly winds. Thus, a few passing showers are possible overnight tonight and tomorrow morning for north and east Puerto Rico. During the day, isolated showers are possible across the region, but only light showers are expected. Overnight Tuesday into Wednesday, some patches of weak moisture are expected to move in as our winds turn more easterly and then east-southeast later during the daytime. Thus overnight, isolated to scattered showers are possible for eastern Puerto Rico and the USVI. Even with these patches of moisture for Wednesday, the moisture is so minimal that only isolated showers are likely, with maybe a few areas of scattered showers over eastern Puerto Rico in the morning and northwest Puerto Rico the afternoon. Brisk low-level steering flow winds will keep all showers moving along fairly quickly to thus limit their impact.

LONG TERM. Thursday through Tuesday .

PREV DISCUSSION. /issued 501 AM AST Mon Mar 1 2021/

A mid-level ridge will dominate the local weather conditions through the end of the workweek. This will promote stable conditions aloft and maintain the trade wind cap across the region. Precipitable water content through this period will be around 1 inch, and diurnally induced afternoon showers should result in minor rainfall accumulations. A surface high pressure will continue to move further away into the central-eastern Atlantic, while a polar trough and associated surface front exits the U.S. East Coast by Friday. The base of the trough and the front are expected at this time to remain just north of the region, however, a pre-frontal trough is expected to develop in a southeasterly wind flow and move over the region on Saturday. Pooling of moisture is expected through the weekend into early next week. Precipitable water content is forecast to increase from 1.75-2.00 inches during this time. Therefore, expect wetter conditions and the potential for urban and small stream flooding will increase due to periods of moderate to locally heavy rainfall. Drier conditions are expected by Tuesday.

AVIATION.

VFR conditions will continue through the period. Mostly clear to partly cloudy skies will also continue, with occasional isolated light SHRA. VCSH most likely for TJSJ overnight and least likely for TJPS and TJMZ. Easterly winds mostly around 15 to 20 knots with gusts up to 30 kts will affect the local terminals. Winds will drop around 10 knots after 01/23z.

MARINE.

Seas are expected to weaken between now and tomorrow as winds also relax a bit across the region. Still, seas will remain around 6 to 10 feet for the Atlantic and 5 to 8 feet for the Caribbean through tonight. For beachgoers, the risk of rip currents continues high for the north-facing beaches of Puerto Rico, the southeast coast of PR, Culebra, the northwestern beaches of St Thomas, and the north and east coast of St Croix.

PRELIMINARY POINT TEMPS/POPS. SJU 71 85 72 86 / 40 30 30 30 STT 72 84 73 82 / 30 30 40 40

SJU WATCHES/WARNINGS/ADVISORIES. PR . High Rip Current Risk through Tuesday afternoon for Culebra- North Central-Northeast-Northwest-San Juan and Vicinity.

High Rip Current Risk until 6 PM AST this evening for Central Interior-Southeast.

VI . High Rip Current Risk through Tuesday afternoon for St Croix.

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

AM . Small Craft Advisory until 8 AM AST Tuesday for Caribbean Waters of Puerto Rico from 10 NM to 17N-Anegada Passage Southward to 17N-Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-Coastal Waters of Northern Puerto Rico out 10 NM- Coastal Waters of Northern USVI and Culebra out 10 NM- Coastal Waters of Northwestern Puerto Rico out 10 NM- Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out 10 NM-Mona Passage Southward to 17N.



SHORT TERM . RAM LONG TERM . mb PUBLIC DESK . GL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41056 8 mi68 min NE 14 G 18 78°F 79°F5 ft
CLBP4 - 9752235 - Culebra, PR 14 mi50 min 76°F 80°F1016.2 hPa
ESPP4 - 9752695 - Esperanza, PR 18 mi50 min ENE 2.9 G 6 79°F1016.6 hPa
41053 - San Juan, PR 30 mi68 min ENE 16 G 19 78°F 79°F7 ft1015.4 hPa (+1.4)
SJNP4 - 9755371 - San Juan, PR 30 mi50 min ENE 8.9 G 15 78°F 79°F1016.8 hPa
41052 - South of St. John, Virgin Islands 43 mi68 min ENE 16 G 18 78°F 79°F5 ft1014.9 hPa (+1.4)
JOXP4 - Jobos Bay Reserve, Puerto Rico 44 mi83 min ENE 2.9 76°F 1017 hPa65°F
LAMV3 45 mi50 min 76°F 80°F

Wind History for Fajardo, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR24 mi72 minENE 1310.00 miPartly Cloudy76°F63°F64%1016.6 hPa

Link to 5 minute data for TJSJ

Wind History from JSJ (wind in knots)
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2 days agoNE15E13E12E13E12E8E12
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Tide / Current Tables for Playa de Fajardo, Puerto Rico
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Playa de Fajardo
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Mon -- 04:07 AM AST     -0.05 feet Low Tide
Mon -- 06:41 AM AST     Sunrise
Mon -- 08:29 AM AST     Moonset
Mon -- 10:32 AM AST     1.41 feet High Tide
Mon -- 04:41 PM AST     0.06 feet Low Tide
Mon -- 06:28 PM AST     Sunset
Mon -- 09:00 PM AST     Moonrise
Mon -- 10:55 PM AST     1.39 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.60.30.1-000.20.60.91.21.41.41.20.90.60.30.10.10.20.50.81.11.31.4

Tide / Current Tables for Vieques Passage, Puerto Rico Current
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Vieques Passage
Click for Map
Mon -- 12:28 AM AST     0.72 knots Max Flood
Mon -- 03:31 AM AST     -0.00 knots Slack
Mon -- 06:40 AM AST     -0.75 knots Max Ebb
Mon -- 06:41 AM AST     Sunrise
Mon -- 08:29 AM AST     Moonset
Mon -- 09:50 AM AST     0.00 knots Slack
Mon -- 12:47 PM AST     0.67 knots Max Flood
Mon -- 03:43 PM AST     -0.00 knots Slack
Mon -- 06:28 PM AST     Sunset
Mon -- 06:55 PM AST     -0.77 knots Max Ebb
Mon -- 09:00 PM AST     Moonrise
Mon -- 10:02 PM AST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.50.2-0.2-0.5-0.7-0.7-0.6-0.30.10.40.60.70.50.3-0.1-0.4-0.7-0.8-0.7-0.4-00.4

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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