Wednesday, April21, 2021
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Marine Weather and Tides
Isabela, 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 6:06AMSunset 6:48PM Wednesday April 21, 2021 6:53 AM AST (10:53 UTC) Moonrise 1:33PMMoonset 2:06AM Illumination 70% Phase: Waxing Gibbous; Moon at 9 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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AMZ742 Coastal Waters Of Northwestern Puerto Rico Out 10 Nm- 417 Am Ast Wed Apr 21 2021
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
Thursday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Thursday night..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated showers through the night.
Friday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Scattered showers.
Saturday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Sunday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
AMZ700 417 Am Ast Wed Apr 21 2021
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure over the central atlantic will continue to promote light to moderate east to southeast winds for the next several days. Increasing winds will cause choppy seas across the offshore waters and local passages today.


7 Day Forecast for Marine Location Near Isabela, PR
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location: 18.5, -67.01     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 210836 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 436 AM AST Wed Apr 21 2021

SYNOPSIS.

Dry pattern continues over the local area. Hazy skies as result of African dust incursion will continue through Saturday. Moisture content will pick up over the weekend promoting showery weather across the region. Choppy marine conditions will prevail today with seas up to 6 feet mainly over the outer Atlantic waters.

SHORT TERM. Today through Friday .

Stable weather conditions will continue today with a mid to upper-level ridge aloft. Somewhat hazy skies will continue due to the remnants of suspended dust from Africa's desserts. Winds will turn more from the east today. In general, expect hazy and mostly sunny skies today. Once again, moisture will develop across the western portions of Puerto Rico during the afternoon.

A polar trough moving across the western Atlantic will weaken the ridge aloft. In addition to the weakening of the trade wind cap, surges of low-level moisture will increase the frequency and intensity of showers in the typical seasonal pattern Thursday and Friday. Therefore, expect passing showers embedded in the trades across the local waters and windward sections during the morning and evening hours. Then, diurnal-heating and sea breeze variations will aid in the formation of showers over the western portions. Also, the U.S. Virgin Islands could expect afternoon showers due to low-level convergence, and rains in the form of streamers from El Yunque could impact the San Juan metro area.

LONG TERM. Saturday through Wednesday .

A polar trough moves across the western Atlantic. The mid to upper level ridge is expected to stall northeast of the Leeward islands. At lower levels, a surface high will move into the central Atlantic. This will result in a showery weekend with patches of moisture reaching the islands during the morning hours, followed by afternoon convection over parts of interior and northern Puerto Rico. The wind pattern will be from the southeast, thus daytime high temperature are expected to be just above normal values. For the second half of the forecast period, winds will shift more to the east. This will result in fragments of moisture embedded in the trade winds to reach the local islands from time to time.

AVIATION. Conditions will remain VFR thru the next 24 hrs. Skies will continue hazy, but with more than 6 SMi of Visibilities. Showers may affect or move near JBQ/JSJ between 21/18-22z. Calm to light and variable winds will continue until 21/13z, returning from the E at 10 to 20 knots with sea breeze variations and higher gusts.

MARINE.

A surge in winds as resulted in seas reaching up to 6 feet over the local outer Atlantic waters and in local areas of the inner waters surrounding Puerto Rico today. Therefore, small crafts are urged to exercise caution.

For the beachgoers, there is a moderate risk of rip currents for most of the northern and east facing beaches of the islands, including the southeast and southwest coasts of Puerto Rico, Vieques, Culebra and the U.S. Virgin islands.

PRELIMINARY POINT TEMPS/POPS. SJU 88 75 87 76 / 20 40 30 50 STT 87 75 85 76 / 10 40 40 50

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

SHORT TERM . CAM LONG TERM . FRG PUBLIC DESK . FRG


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTRP4 16 mi24 min E 7 G 8.9 74°F
41115 - Rincon, Puerto Rico (181) 17 mi28 min 81°F2 ft
MGZP4 - 9759394 - Mayaguez, PR 21 mi54 min 72°F 82°F1017.8 hPa (+0.6)
MGIP4 - 9759110 - Magueyes Islands, PR 37 mi54 min SE 1 G 4.1 76°F 81°F1017.2 hPa (+0.8)
SJNP4 - 9755371 - San Juan, PR 47 mi54 min ESE 7 G 8 78°F 82°F1017.6 hPa (+0.6)
41053 - San Juan, PR 48 mi54 min ESE 7.8 G 9.7 78°F 80°F3 ft1016.5 hPa (+0.6)

Wind History for Arecibo, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for TJBQ

Wind History from JBQ (wind in knots)
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Last 24hrE5E7SE6NE7NE7NE10NE6
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NE9NE9NE10E11NE9NE9CalmCalmSE3SE5SE4----------E6
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NE7NE5CalmN5------------------SE5
2 days agoCalmCalmCalmNE8N7N7N7NE5NE6NE4NE4E7E3CalmSW3----------------Calm

Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
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Wed -- 02:05 AM AST     Moonset
Wed -- 03:31 AM AST     1.41 feet High Tide
Wed -- 06:07 AM AST     Sunrise
Wed -- 10:21 AM AST     0.43 feet Low Tide
Wed -- 01:34 PM AST     Moonrise
Wed -- 03:07 PM AST     0.84 feet High Tide
Wed -- 06:47 PM AST     Sunset
Wed -- 09:23 PM AST     0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.711.31.41.41.31.10.90.70.50.40.50.50.70.80.80.80.70.50.30.20.10.10.2

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Wed -- 02:05 AM AST     Moonset
Wed -- 03:28 AM AST     1.03 feet High Tide
Wed -- 06:07 AM AST     Sunrise
Wed -- 10:16 AM AST     0.32 feet Low Tide
Wed -- 01:34 PM AST     Moonrise
Wed -- 03:04 PM AST     0.61 feet High Tide
Wed -- 06:47 PM AST     Sunset
Wed -- 09:18 PM AST     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.80.9110.90.80.60.50.40.30.30.40.50.60.60.60.50.40.20.10.10.10.2

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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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