Sunday, January19, 2020
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Marine Weather and Tides
Sabana Eneas, 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 7:02AMSunset 6:16PM Sunday January 19, 2020 7:56 PM AST (23:56 UTC) Moonrise 2:12AMMoonset 1:55PM Illumination 27% Phase: Waning Crescent; Moon at 24 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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AMZ745 Coastal Waters Of Southwestern Puerto Rico Out 10 Nm- 356 Pm Ast Sun Jan 19 2020
.small craft advisory in effect through Monday evening...
Tonight..East winds 10 to 15 knots. Seas 8 to 10 feet with occasional seas up to 13 feet. Dominant period 13 seconds. Northwest swell 4 to 8 feet. Isolated showers.
Monday..Southeast winds 10 to 15 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 14 seconds. Northwest swell 4 to 7 feet. Isolated showers.
Monday night..East winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 13 seconds. Northwest swell 4 to 6 feet. Isolated showers.
Tuesday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northwest swell around 4 feet. Isolated showers.
Tuesday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. West swell around 4 feet in the evening. Isolated showers.
Wednesday..South winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Numerous showers.
Thursday..North winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Northwest swell around 4 feet. Numerous showers.
Friday..North winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Scattered showers.
AMZ700 356 Pm Ast Sun Jan 19 2020
Synopsis for puerto rico and the uS. Virgin islands waters... A northerly swell and fresh to strong winds from high pressure in the central atlantic will continue across the local and regional waters over the next several days, resulting in hazardous seas across the atlantic, caribbean and caribbean passages. The worst of the swell is over, and seas will very slowly go back down below small craft advisory criteria on Tuesday and into Wednesday. Quick moving isolated to scattered showers will continue across the local waters.


7 Day Forecast for Marine Location Near Sabana Eneas, PR
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location: 18.08, -67.1     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 191803 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 203 PM AST Sun Jan 19 2020

SYNOPSIS. Another area of moisture will move west ahead of what remains of a decaying cold front and bring showers to the U.S. Virgin Islands and Puerto Rico tonight and Monday before drier air moves in from the southeast. This drier air will remain Tuesday and gradually moisten with the approach of a cold front from the northwest late Thursday. A relatively drier weekend is expected to follow.

SHORT TERM. Tonight through Tuesday . The cold front is losing definition over the local Atlantic waters. Skies have become partly cloudy in the vicinity of Puerto Rico and the U.S. Virgin Islands and shower activity has diminished. Another area of moisture ahead of this dying front over the tropical eastern Atlantic will move into Puerto Rico and the U.S. Virgin Islands tonight and Monday with showers increasing over the U.S. Virgin Islands and eastern Puerto Rico this evening. High pressure at 700 mb will move to our northeast which will bring southeast flow at that level and begin affecting the levels below. The surface high over the central Atlantic will move farther to the east allowing winds to gain a considerable southerly component. This will pull drier air over the forecast area Tuesday. Columnar moisture should reach a minimum around 21Z of less than one inch. Showers will decrease considerably, beginning Monday afternoon. On Tuesday there will be sunnier conditions and southeast flow over land will cause the north coast --especially the Greater San Juan Metropolitan area--maximum temperatures to warm 3 to 4 degrees above normal.

LONG TERM. Wednesday through Saturday . /issued 506 AM AST Sun Jan 19 2020/

Guidance continues to show an unsettled pattern during the long-term period as a result of several weak frontal boundaries that is prog to move over the area. The frontal boundaries will increase low- level moisture and instability; this will lead to the development of frequent passing showers as well as gusty winds from time to time. Also, expected cloudy conditions to prevail during this time.

Wednesday, a surface ridge is expected to move northeast ahead of an intensifying mid to upper-level trough over the western Atlantic. The shift in the surface to the mid-level ridge will result in low- level convergence and weak upper-level divergence across the region. Guidance continues to put a vigorous low-level jet with winds ranging from 60 to 90 kts across Puerto Rio and the U.S Virgin Islands throughout the entire long-term period. The instability created by veering southerly winds, jet interaction, troughiness aloft, and increasing moisture will aid in the development of frequent showers across the region during the afternoon through late Wednesday. However, the GFS has a precipitable water value of 1.0 inches early Wednesday, and increasing through the day. The drier air could delay the start of the rain on Wednesday.

Thursday, the GFS shows an area of high pressure moving off the eastern seaboard into the western Atlantic waters, this will cause the surface ridge to the northeast of Puerto Rio to continue to shift away from the area. Also, the frontal boundary to our northwest will strengthen and move closer to the region. Guidance shows a pre-frontal boundary move over Puerto Rico Thursday afternoon. The boundary and its associated moisture will induce frequent showers across the U.S. Virgin Island and Puerto Rico throughout the day on Thursday.

Friday, the GFS holds the pre-frontal boundary over the area with the highest moisture draped across the Caribbean waters. Nevertheless, frequent passing showers will develop across Puerto Rio and adjacent Islands.

Saturday and Sunday, the front is progged to move over Puerto Rio finally. The frontal boundary moving over the area will result in frequent passing showers over Puerto Rico and adjacent Islands. Sunday, the frontal boundary is expected to become diffuse and lose it

AVIATION. Prevailing VFR durg forecast prd. The proximity of a frontal boundary will bring -SHRA/SHRA ovr local Atlantic waters and ovr coastal sections of the islands til 20/03z. Sfc wnds fm SSE btw 10-20 kt with hir gusts btw 25-30 kts nr SHRA and along coastal areas. Max winds WNW 60-70 kt btwn FL380-480.

MARINE. Seas at bouy 41043 peaked at just below 17 feet but are now oscillating between 14 and 16 feet. Seas at buoy 41053, our inner buoy, peaked at 13 feet and dropped to just above 11 feet. Seas may increase again during the evening, but are expected to gradually subside, until seas of all marine zones are below 7 feet by 8 PM AST Tuesday. Seas in the Atlantic and Caribbean are expected to become hazardous again Thursday evening when a northwest swell enters the forecast area.

PRELIMINARY POINT TEMPS/POPS. SJU 73 85 74 87 / 80 50 30 50 STT 73 84 77 84 / 70 70 40 50

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

High Surf Advisory until 6 PM AST Monday for Culebra-Mayaguez and Vicinity-North Central-Northeast-Northwest-San Juan and Vicinity-Southeast-Vieques.

Coastal Flood Advisory until 6 PM AST this evening for Culebra- Mayaguez and Vicinity-North Central-Northeast-Northwest-San Juan and Vicinity-Southeast.

High Surf Advisory until 6 PM AST this evening for Southwest.

VI . High Rip Current Risk through late Monday night for St Croix- St Thomas. St John. and Adjacent Islands.

High Surf Advisory until 6 PM AST Monday for St Thomas. St. John . and Adjacent Islands.

Coastal Flood Advisory until 6 PM AST this evening for St Thomas. St John. and Adjacent Islands.

AM . Small Craft Advisory until 2 PM AST Monday for Coastal Waters of Southern Puerto Rico out 10 NM.

Small Craft Advisory until 8 PM AST Tuesday 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-Coastal Waters of Northern USVI and Culebra out 10 NM-Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out 10 NM.

Small Craft Advisory until 2 PM AST Tuesday for Coastal Waters of Northern Puerto Rico out 10 NM-Mona Passage Southward to 17N.

Small Craft Advisory until 8 PM AST Monday for Coastal Waters OF Southwestern Puerto Rico out 10 NM.

Small Craft Advisory until 8 AM AST Tuesday for Coastal Waters of Northwestern Puerto Rico out 10 NM.



SHORT TERM . WS LONG TERM . FRG PUBLIC DESK . LIS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGIP4 - 9759110 - Magueyes Islands, PR 8 mi56 min 80°F1017.2 hPa (+0.8)
MGZP4 - 9759394 - Mayaguez, PR 10 mi62 min 82°F1017.3 hPa
PTRP4 21 mi26 min ENE 8 G 12 74°F
41115 - Rincon, Puerto Rico (181) 23 mi56 min 81°F13 ft
42085 - Southeast of Ponce, PR 33 mi56 min E 18 G 21 79°F 80°F4 ft1015.7 hPa (+1.1)
AROP4 - 9757809 - Arecibo, PR 35 mi68 min E 4.1 G 6
MISP4 - 9759938 - Mona Island, PR 44 mi56 min 77°F 81°F1017.5 hPa (+0.5)
JOXP4 - Jobos Bay Reserve, Puerto Rico 47 mi71 min NE 4.1 78°F 1018 hPa68°F

Wind History for Magueyes Island, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for TJMZ

Wind History from JMZ (wind in knots)
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Last 24hr----------------------------------------E6E5E8E9
1 day ago------------------------------------------------
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Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Sun -- 02:13 AM AST     Moonrise
Sun -- 04:17 AM AST     1.06 feet High Tide
Sun -- 07:03 AM AST     Sunrise
Sun -- 10:41 AM AST     0.30 feet Low Tide
Sun -- 01:55 PM AST     Moonset
Sun -- 03:30 PM AST     0.68 feet High Tide
Sun -- 06:15 PM AST     Sunset
Sun -- 10:09 PM AST     -0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.50.811.110.90.80.60.40.30.30.40.50.60.70.70.60.40.20-0.1-0.2-0.1

Tide / Current Tables for Magueyes Island, Caribbean Sea, Puerto Rico
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Magueyes Island
Click for Map
Sun -- 02:12 AM AST     Moonrise
Sun -- 07:02 AM AST     Sunrise
Sun -- 08:15 AM AST     0.56 feet High Tide
Sun -- 01:54 PM AST     Moonset
Sun -- 06:15 PM AST     Sunset
Sun -- 09:09 PM AST     -0.13 feet Low Tide
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.
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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.