Friday, April3, 2020
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Marine Weather and Tides
Esperanza, PR

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:13AMSunset 6:37PM Friday April 3, 2020 6:24 PM AST (22:24 UTC) Moonrise 2:14PMMoonset 2:43AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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- 413 Pm Ast Fri Apr 3 2020
Tonight..Southwest winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 12 seconds. East swell around 4 feet after midnight. Isolated showers through the night.
Saturday..Southwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. East swell around 4 feet. Isolated showers.
Saturday night..North winds 5 to 10 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.
Sunday..North winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. East swell around 4 feet. Scattered showers.
Sunday night..North winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. East swell around 4 feet. Isolated showers.
Monday..North winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. East swell 4 to 5 feet. Isolated showers.
Tuesday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. East swell around 4 feet. Scattered showers.
Wednesday..Northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. East swell around 4 feet. Scattered showers.
AMZ700 413 Pm Ast Fri Apr 3 2020
Synopsis for puerto rico and the uS. Virgin islands waters... Choppy seas are expected across the offshore atlantic waters as a northerly swell begins to invade the local waters later tonight. Marine conditions will continue to deteriorate into the weekend with seas increasing up to 8 feet by Sunday across the atlantic waters and local passages. Isolated to scattered showers over the local waters are expected as a cold front moves into the area this weekend.


7 Day Forecast for Marine Location Near Esperanza, PR
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location: 18.12, -65.46     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 032021 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 421 PM AST Fri Apr 3 2020

SYNOPSIS.

Some isolated to scattered showers has observed over the last hours specially in the interior and western sections of Puerto Rico with little rainfall accumulations. These weather pattern of cloudiness and shower activity will continue as a frontal boundary continue to approach the area and increase the potential for shower activity during the weekend into early next week. Hazardous marine conditions are expected for the next several days as a northerly swell invades the local waters.

SHORT TERM. Tonight through Sunday .

Showers over land areas could linger through the evening hours due to the light steering winds. Fair weather conditions are expected overnight into Saturday morning. Steering winds will turn more from the south/southwest on Saturday, as a weak cold front, currently north of Hispaniola approaches the local area and the mid level trough sets up west of the region. Light and variable winds are expected to prevail at the surface through Saturday, and diurnally induced afternoon shower are expected to develop mainly over the interior, northern and eastern sections of Puerto Rico. Shower activity will gradually increase across the Atlantic waters through the day, and the front is expected to move across Puerto Rico and the northern U.S. Virgin Islands between late Saturday night and Sunday bringing an increase in cloudiness and shower activity. As the front moves through the area, winds will shift from the north and this will maintain cooler day time maximum than those observed during the past few days.

LONG TERM. Monday through Saturday .

/issued 455 AM AST Fri Apr 3 2020/

As the frontal boundary lingers near the islands, enhanced shower activity is expected to continue due to low level convergence and the moisture associated with this system. The latest guidance shows that the front will meander near Puerto Rico and the U.S. Virgin Islands through much of the workweek, with precipitable waters values ranging between 1.4 to 1.6 through Wednesday. Then, on Friday and Saturday, these values are expected to climb near 1.8 inches as the system is pushed back across the islands. At the upper levels, a 50 to 60 knots jet will also provide some instability aloft that should aid in the development of shower activity across the region on Monday and Tuesday. However, this jet will then move toward the east by the end of the week, hence instability is expected to decrease. In general, under this weather pattern, shower activity is favored, with urban and small streaming flooding possible each day of the week.

AVIATION. Increasing moisture ahead of a cold front will result in enhanced cloudiness for TJBQ/TJMZ/TJSJ this afternoon. VCSH are possible, but at this point looks less likely. Showers moving up from the south may also impact TKPK later this afternoon and into the nighttime. Winds will continue from the south to southeast with sea breeze modifications, especially at TJBQ/TJMZ/TJSJ, with wind speeds at 5-10 kts.

MARINE. A northerly swell is moving into the region today resulting in hazardous marine conditions across the Atlantic waters where seas will peak around 7-9 feet on Sunday evening and into Monday. Small crafts should exercise caution today for these waters in anticipation of the swell. In effect, high risk of tip current over the northern, eastern and some local beaches in the western coast of Puerto Rico. Shower activity will increase as well as a cold front moves into the area this weekend.

PRELIMINARY POINT TEMPS/POPS. SJU 74 90 74 84 / 10 30 40 40 STT 73 86 73 79 / 10 10 40 40

SJU WATCHES/WARNINGS/ADVISORIES. PR . High Rip Current Risk through late Monday night for Mayaguez and Vicinity-Northeast-Northwest-San Juan and Vicinity- Southeast.

High Rip Current Risk through late Monday night for North Central.

High Rip Current Risk from Saturday morning through late Monday night for Culebra.

VI . High Rip Current Risk from Saturday morning through late Monday night for St Thomas. St John. and Adjacent Islands.

AM . Small Craft Advisory from 2 PM Saturday to 8 PM AST Monday for Coastal Waters of Northern Puerto Rico out 10 NM.

Small Craft Advisory from 8 PM this evening to 8 PM AST Monday for Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N.



SHORT TERM . GL LONG TERM . 99 PUBLIC DESK . LIS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ESPP4 - 9752695 - Esperanza, PR 2 mi54 min SSW 5.1 G 8 84°F 83°F1012 hPa
41056 10 mi84 min S 7.8 G 9.7 82°F 81°F3 ft1010.6 hPa (-1.2)
CLBP4 - 9752235 - Culebra, PR 15 mi54 min 89°F 85°F1011.5 hPa
CHAV3 - 9751639 - Charlotte Amalie, VI 32 mi54 min 81°F 1011.9 hPa
LAMV3 41 mi54 min 80°F 83°F
41053 - San Juan, PR 42 mi84 min NNW 5.8 G 7.8 82°F 81°F3 ft1010.5 hPa (-1.0)
JOXP4 - Jobos Bay Reserve, Puerto Rico 42 mi99 min SE 5.1 83°F 1013 hPa72°F
SJNP4 - 9755371 - San Juan, PR 42 mi54 min WNW 6 G 7 82°F 82°F1011.9 hPa
CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands 48 mi54 min SE 6 G 9.9 85°F 82°F1011.4 hPa
LTBV3 - 9751401 - Lime Tree Bay, VI 48 mi54 min S 4.1 G 7 81°F 84°F1012.8 hPa

Wind History for Esperanza, Vieques Island, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR36 mi28 minWNW 810.00 miPartly Cloudy83°F72°F70%1011.8 hPa

Link to 5 minute data for TJSJ

Wind History from JSJ (wind in knots)
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----S5SW5S5S4S3S3CalmCalmS4S4SE4S5S8S83NE9N12N9N7N7NW8
1 day agoS6S4S4S4S3S4S3SW5S3S3CalmCalmCalmCalmCalm564536SE9S8
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2 days agoE9--E5CalmE4CalmCalmS3CalmS3CalmCalmCalmS4SE4E83S8
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Tide / Current Tables for Puerto Ferro, Isla de Vieques, Puerto Rico
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Puerto Ferro
Click for Map
Fri -- 02:42 AM AST     Moonset
Fri -- 05:17 AM AST     0.83 feet High Tide
Fri -- 06:14 AM AST     Sunrise
Fri -- 12:44 PM AST     0.68 feet Low Tide
Fri -- 01:34 PM AST     0.69 feet High Tide
Fri -- 02:14 PM AST     Moonrise
Fri -- 06:35 PM AST     Sunset
Fri -- 11:17 PM AST     -0.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.20.40.60.80.80.80.80.80.70.70.70.70.70.70.70.60.60.40.30.20.1-0-0

Tide / Current Tables for Vieques Passage, Puerto Rico Current (2)
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Vieques Passage
Click for Map
Fri -- 12:10 AM AST     -0.39 knots Max Ebb
Fri -- 02:43 AM AST     Moonset
Fri -- 02:50 AM AST     0.00 knots Slack
Fri -- 06:14 AM AST     Sunrise
Fri -- 06:20 AM AST     0.63 knots Max Flood
Fri -- 09:31 AM AST     -0.00 knots Slack
Fri -- 01:02 PM AST     -0.75 knots Max Ebb
Fri -- 02:14 PM AST     Moonrise
Fri -- 04:42 PM AST     0.00 knots Slack
Fri -- 06:36 PM AST     Sunset
Fri -- 07:26 PM AST     0.46 knots Max Flood
Fri -- 10:20 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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Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (18,4,5,8)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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 numerous 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.