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Marine Weather and Tides Santa Isabel, PR Version 3.4

NOTICE 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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 6:45AM

Sunset 5:52PM

Monday December 9, 2019 7:39 PM AST (23:39 UTC)

Moonrise 4:06PM

Moonset 4:16AM

Illumination 96%

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 Santa Isabel, PR

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Area Discussion for - San Juan, PR

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FXCA62 TJSJ 091733 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 133 PM AST Mon Dec 9 2019

SYNOPSIS. Brisk east-northeast winds will continue across the islands due to a strong high pressure system over the Atlantic Ocean. Under this flow, passing showers are favored across eastern and northern Puerto Rico and over the U.S. Virgin Islands. Marine conditions will deteriorate beginning tonight and will continue hazardous for much of the workweek.

SHORT TERM. Tonight through Wednesday . A high pressure system located over the Atlantic Ocean will continue to strengthen, tightening the pressure gradient across the area. This will result in brisk east-northeast winds for the next couple of days. As a result, passing showers are favored across portions of northern and eastern Puerto Rico as well as over and around the U.S. Virgin Islands. For tonight, this activity could be a bit enhanced by the presence of a trough at the mid and upper levels located just to the north of the islands. On Tuesday, although this trough will linger north of the area, drier air is anticipated to move in, limiting the amount of moisture. Nonetheless, a few showers could still be advected over the islands. Finally, on Wednesday, the same pattern holds, but with a bit more moisture available, the frequency of showers should increase once again.

LONG TERM. Thursday through Tuesday .

Uneventful weather conditions are expected to prevail in the long-term forecast. Near average moisture will be with us, with precipitable water values mostly between 1.5 and 1.7 inches. Also, trade winds stay fairly brisk as well, helping to keep showers moving along and reducing the amount of rainfall accumulations. No major fronts or tropical waves are forecasted for the next week. Furthermore, the upper levels of the atmosphere remain less conducive to thunderstorm activity with plenty of ridging aloft.

Despite the generally average conditions in the long-term, there will still be plenty of opportunity for passing showers. Advective showers will develop in the nighttime and morning hours, threatening the east coast of Puerto Rico and the USVI, particularly Thursday and Friday when the highest moisture content will occur. Furthermore, the usual afternoon shower activity is possible, particularly for western Puerto Rico. However, for reasons mentioned in the last paragraph, these showers will likely have minimal impact. Long range models suggest drier conditions heading into the next week, with the chance for some Saharan dust working into the region. However, there is minimal confidence in that forecast this far out.

Aviation. Mostly VFR conds are expected through the forecast period. VCSH and/or -SHRA may affect the TAF sites at times, but overall VFR conds will prevail. ENE winds of 15-25 kts likely below FL250. Brief winds gusts are possible with SHRA as they pass by.

MARINE. Hazardous marine conditions are expected to begin tonight, with seas increasing between 5 to 7 feet due to an increase in winds. Winds will be out of the east-northeast at 15 to 20 knots. Small craft advisories will be in effect beginning tonight through much of the workweek. For the beachgoers, there is a moderate risk of rip currents for most of the local beaches.

PRELIMINARY POINT TEMPS/POPS. SJU 75 84 76 84 / 50 70 70 40 STT 75 86 75 85 / 40 40 40 30

SJU WATCHES/WARNINGS/ADVISORIES. PR . None. VI . None. AM . Small Craft Advisory from 8 PM this evening to 8 AM AST Friday for Anegada Passage Southward to 17N-Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-Caribbean Waters of Puerto Rico from 10 NM to 17N-Mona Passage Southward to 17N.



SHORT TERM . ER LONG TERM . ERG PUBLIC DESK . GL

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
42085 - Southeast of Ponce, PR	10 mi	100 min	ENE 19 G 23	82°F	83°F	4 ft	1014 hPa (+0.3)
JOXP4 - Jobos Bay Reserve, Puerto Rico	10 mi	115 min	NNE 4.1	77°F			1016 hPa	73°F
YABP4 - 9754228 - Yabucoa Harbor, PR	30 mi	118 min		82°F				74°F
MGIP4 - 9759110 - Magueyes Islands, PR	34 mi	118 min	ESE 5.1 G 13	83°F	83°F		1015.7 hPa
SJNP4 - 9755371 - San Juan, PR	36 mi	112 min	ESE 12 G 16		84°F		1016.1 hPa
41053 - San Juan, PR	38 mi	100 min	ESE 16 G 19	79°F	84°F	5 ft	1014.9 hPa (+0.5)
AROP4 - 9757809 - Arecibo, PR	38 mi	112 min	NE 6 G 8
MGZP4 - 9759394 - Mayaguez, PR	43 mi	88 min			84°F

Wind History for Penuelas (Punta Guayanilla), PR

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure

Link to 5 minute data for TJPS

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Tide / Current Tables for Playa Cortada, Puerto Rico

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Tide / Current Tables for Playa de Ponce, Puerto Rico

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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 (18,4,5,8)

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Ground Weather Radar Station Puerto Rico,Virgin Islands

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