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Marine Weather and Tides El Negro, 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.

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Sunrise 6:02AM

Sunset 6:54PM

Sunday August 9, 2020 7:00 AM AST (11:00 UTC)

Moonrise 10:58PM

Moonset 10:54AM

Illumination 71%

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.

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7 Day Forecast for Marine Location Near El Negro, PR

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Area Discussion for - San Juan, PR

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FXCA62 TJSJ 090802 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 402 AM AST Sun Aug 9 2020

SYNOPSIS.

The influence of a mid-to-upper level ridge and a dry air mass with African dust particles will continue to promote mostly sunny/clear and hazy skies. Maximum temperatures will remain in the low-90s with heat indices in upper 90s and mid 100s degrees Fahrenheits. Overnight and early morning showers across the local waters and windward sections followed by afternoon convection across the western portion of the islands will happen each day. The next tropical wave is forecast to arrive by the middle of this week.

SHORT TERM. Today through Tuesday .

Strong high pressure continues across the central Atlantic, which is helping to produce drier than normal conditions across the region. The effects of this ridging were evident in the sounding from yesterday evening, with a strong inversion between 850 and 700 mb, along with very dry air at mid to upper levels. Saharan dust has also invaded the region, and mild to moderate amounts will continue for the next few day. The aforementioned high pressure will also be with us for the next few days, resulting in a continuation of drier than normal conditions. Though no tropical waves are expected in the short term, patches of moisture will move in from time to time, resulting in periods of isolated to scattered showers.

Putting this all together, only isolated showers are expected for the rest of the morning, primarily across the local waters and areas near the coast of E. Puerto Rico and the USVI. For this afternoon, east-northeasterly winds will favor showers over southwestern Puerto Rico this afternoon. These showers will likely not be impactful, though persistent showers may produce ponding of water in isolated areas. Monday and Tuesday are essentially a repeat of today, except the shower activity in the afternoon will center over western rather than southwestern Puerto Rico. Again these showers will likely not be very impactful.

LONG TERM. Wednesday through Monday

The mid level high pressure is forecast to remain near the region as one of the dominant weather features promoting dry air at mid level, and a persistent trade wind cap. However, a weak tropical wave is forecast to move across the islands by Wednesday afternoon and should be out of the region by Thursday morning when a dry air mass with African dust will filter from the east over the islands. This tropical system will provide the best chance for shower and thunderstorm development across the islands, but doesn't look so impressive at this time.

For the next weekend, a more robust tropical wave will provide a better chance for inclement weather across the islands, now, by Saturday afternoon into Sunday. Uncertainty still high because this tropical system is too far in the long-term forecast, therefore it's too early to know its true nature and impacts across the islands.

Generally speaking, you can expect a seasonal weather pattern with overnight and early morning showers moving across the local waters and windward sections, followed by afternoon convection over the western sections of the islands each day. Maximum temperatures will continue in the low 90s mainly over the urban and coastal areas with heat indices from the upper 90s to mid 100s degrees Fahrenheits.

AVIATION.

Primarily VFR conds expected at all terminals. Brief passing showers possible for all terminals except TJPS/TJMZ/TJBQ through 16z with E winds at 5 to 10 kts. Winds pick up to 10 to 15 kts with sea breeze variations, and VCSH possible for TJMZ in the afternoon.

MARINE.

Mariners can expect tranquil marine conditions through much of the forecast period. However, winds and seas will remain between 15 and 20 knots, and between 4 and 6 feet across the Caribbean Offshore waters and the Mona Passage today. Also, local effects could increase winds between 15 and 20 knots each day, especially during the afternoon hours. Marine/weather conditions will deteriorate due to a tropical wave between Wednesday afternoon and early Friday morning.

PRELIMINARY POINT TEMPS/POPS. SJU 90 81 90 79 / 10 20 20 30 STT 91 81 91 79 / 20 30 30 30

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

SHORT TERM . mb LONG TERM . CAM

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
ESPP4 - 9752695 - Esperanza, PR	19 mi	48 min	NNE 1 G 1.9		84°F		1018.3 hPa
JOXP4 - Jobos Bay Reserve, Puerto Rico	23 mi	75 min	NE 1	79°F			1019 hPa	69°F
41056	25 mi	60 min	E 12 G 16	83°F	84°F	3 ft	1016.9 hPa (+0.0)
CLBP4 - 9752235 - Culebra, PR	34 mi	42 min		82°F	85°F		1017.8 hPa
41053 - San Juan, PR	36 mi	120 min	E 12 G 16	84°F	84°F	3 ft	1016.9 hPa (+0.0)
SJNP4 - 9755371 - San Juan, PR	36 mi	42 min	E 8.9 G 9.9	83°F	85°F		1018.6 hPa
42085 - Southeast of Ponce, PR	40 mi	120 min	NE 12 G 12	84°F	85°F	3 ft	1016.3 hPa (-0.5)

Wind History for Yabucoa Harbor, PR

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Last 24hr

1 day ago

2 days ago

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
San Juan, Luis Munoz Marin International Airport, PR	32 mi	64 min	ESE 3	10.00 mi	A Few Clouds	82°F	75°F	79%	1018.1 hPa

Link to 5 minute data for TJSJ

Wind History from JSJ (wind in knots)

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Last 24hr

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E18 G23

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1 day ago

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Tide / Current Tables for Puerto Maunabo, Puerto Rico

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Tide / Current Tables for Vieques Passage, Puerto Rico Current

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Weather Map

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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

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Wind Forecast for (7,2,3,4)

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Ground Weather Radar Station Puerto Rico,Virgin Islands

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