Sunday, January19, 2020
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Marine Weather and Tides
Lamboglia, 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 6:57AMSunset 6:12PM Sunday January 19, 2020 7:01 AM AST (11:01 UTC) Moonrise 2:08AMMoonset 1:51PM Illumination 32% 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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AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 359 Am Ast Sun Jan 19 2020
.small craft advisory in effect through Monday evening...
Today..East winds 15 to 20 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 8 seconds. Southeast swell 4 to 5 feet. Scattered showers through the day.
Tonight..East winds 15 to 20 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 7 seconds. Southeast swell 4 to 5 feet. Scattered showers.
Monday..East winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 7 seconds. Southeast swell around 4 feet. Scattered showers.
Monday night..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Tuesday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Wednesday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Thursday..Northeast winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers.
AMZ700 359 Am Ast Sun Jan 19 2020
Synopsis for puerto rico and the uS. Virgin islands waters... A northerly swell and windy conditions will continue across the local and regional waters over the next several days, resulting in hazardous seas across the atlantic, caribbean and Mona passage. The combination of wind-driven seas and a northerly swell will cause moderate to rough seas, as well as fresh to strong winds.


7 Day Forecast for Marine Location Near Lamboglia, PR
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location: 17.97, -66     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 190906 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 506 AM AST Sun Jan 19 2020

SYNOPSIS.

Hazardous marine conditions will continue across the outer and near-shore waters through early next week. These conditions are occurring due to a northerly swell and wind-driven waves over the Atlantic waters. A polar trough is forecast to move into the Atlantic waters early next week, and cause the surface high to weaken and move northeast of the area. The weakening of the surface high will turn the surface winds in a southerly direction. Also, shallow moisture ahead of the front will cause frequent passing showers and gusty winds over the region. The front is expected to move over the area on Thursday before moving south of Puerto Rico late next week into the weekend.

SHORT TERM. Today through Tuesday .

Strong Mid to upper level high pressure ridge will hold across the region through Monday, then gradually weaken by Tuesday as a polar trough will sweep across the western Atlantic. This will maintain overall dry and stable conditions in the mid to upper levels with only shallow moisture expected to be tapped below the strong trade wind cap inversion. Surface high pressure ridge will continue to shift eastward into the central Atlantic today through Monday as a cold front will enter and move across the western Atlantic. This pattern will slowly relax the local pressure gradient leading to a decrease in the now moderate to strong east to northeast trades by Monday and Tuesday, when winds are then expected to become more southeasterly.

In the meantime the fairly strong east northeast low level winds will continue to push the band of shallow moisture along a frontal boundary southwards across the forecast area today through Monday. This added moisture will favor shower development across the islands and coastal waters today. Periods of passing showers can therefore be expected to affect the north and east coastal areas of most of the islands though the early morning hours today. During the afternoon hours, locally and diurnally induced afternoon showers can be expected over parts of the interior and west to southwest sections of Puerto Rico, as well as in and around the U.S. Virgin Islands where lesser shower activity is so far expected during the morning hours. Afternoon shower activity should again be fast moving and so far no significant rainfall accumulations are expected across the islands today.

Later tonight through Monday, expect the prevailing winds to become more east southeast as the Atlantic high shifts eastwards into the Central Atlantic. This will result in a return of late evening and early morning trade wind moisture along with quick passing shower activity to portions of the local waters and coastal sections of the islands. By Monday afternoon, lingering moisture along with local and diurnal effects will support mostly isolated to scattered showers over parts of the west and northwest sections of the islands. Rainfall accumulations are so far not expected to be significant to cause flood problems at this time but ponding of water on roadways and in poor drainage areas will be likely with the periods of moderate to locally heavy downpours. Gradual drying trend expected by Tuesday as winds become more southeasterly and decrease in intensity. However this will result in slightly above normal high temperatures at least for Monday and Tuesday.

LONG TERM. Wednesday through Saturday .

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 characteristics. Still, showers are forecast to develop during the day on Sunday.

AVIATION.

Prevailing VFR durg prd. The proximity of a frontal boundary will bring SCT-BKN lyrs nr FL025 . FL040 . FL070. Ocnl -SHRA/SHRA ovr local Atlantic waters and en route btw islands along frontal boundary til 19/14z. Brief MTN top obscr ovr Ern PR til 19/13z due to SHRA/low CIG. Sfc wnds fm ENE btw 12-20 kt with hir gusts btw 25-30 kts nr SHRA and along coastal areas. Sfc wnds bcmg E- NE 15-25 kt with ocnly hir gusts. L/lvl wnds 20-25 kts blo FL100, then backing and bcmg fm N up to FL250.

MARINE.

Hazardous marine conditions will continue over the local and regional waters through early next week. These conditions are being generated by a wind-driven seas and a northerly swell. There is a High Surf Advisory and a Coastal Flood Advisory in effect for the the northern, western and eastern beaches of Puerto Rico today. Also, a Coastal flood Advisory and High Surf advisory is in effect for the beaches of Saint Thomas, Saint John and Adjacent Islands today. For the High Surf Advisory expect large breaking waves of 8 to 12 feet for the beaches above. There is a high risk of Rip Currents for all the beaches of Puerto Rico, Culebra, Vieques, USVI, Saint Thomas and Saint John.

PRELIMINARY POINT TEMPS/POPS. SJU 84 73 85 74 / 60 80 60 40 STT 85 76 84 77 / 50 70 70 40

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.

Small Craft Advisory until 8 PM AST Monday for Southeast- Southwest.

High Rip Current Risk through late tonight for Ponce and Vicinity-Western Interior.

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 8 PM AST Monday for Coastal Waters OF Southwestern Puerto Rico out 10 NM-Coastal Waters of Southern Puerto Rico out 10 NM.

Small Craft Advisory until 8 AM 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 Northwestern Puerto Rico out 10 NM-Coastal Waters of Northern Puerto Rico out 10 NM-Coastal Waters of Northern USVI and Culebra out 10 NM-Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out 10 NM-Mona Passage Southward to 17N.



SHORT TERM . RAM LONG TERM . TW PUBLIC DESK . 99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YABP4 - 9754228 - Yabucoa Harbor, PR 11 mi44 min 77°F 68°F
JOXP4 - Jobos Bay Reserve, Puerto Rico 12 mi77 min NE 6 74°F 1019 hPa66°F
42085 - Southeast of Ponce, PR 29 mi62 min NE 14 G 16 77°F 80°F4 ft1016.6 hPa (+0.4)
ESPP4 - 9752695 - Esperanza, PR 29 mi44 min 75°F 79°F1018.7 hPa
SJNP4 - 9755371 - San Juan, PR 34 mi44 min 73°F 80°F1018.7 hPa
41053 - San Juan, PR 35 mi62 min E 18 G 23 74°F 81°F12 ft1017.4 hPa (+0.4)
41056 35 mi62 min ENE 19 G 23 77°F 80°F9 ft1017.1 hPa (-0.0)
CLBP4 - 9752235 - Culebra, PR 43 mi50 min 74°F 81°F1018.3 hPa

Wind History for Yabucoa Harbor, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for TJPS

Wind History from JPS (wind in knots)
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Last 24hr--------------------------------------E5NE5NE5--Calm
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Tide / Current Tables for Arroyo, Puerto Rico
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Arroyo
Click for Map
Sun -- 02:08 AM AST     Moonrise
Sun -- 06:58 AM AST     Sunrise
Sun -- 08:42 AM AST     0.51 feet High Tide
Sun -- 08:56 AM AST     0.45 feet Low Tide
Sun -- 01:50 PM AST     Moonset
Sun -- 04:28 PM AST     0.47 feet High Tide
Sun -- 06:11 PM AST     Sunset
Sun -- 08:31 PM AST     -0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Punta Tuna, Puerto Rico
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Punta Tuna
Click for Map
Sun -- 02:07 AM AST     Moonrise
Sun -- 06:57 AM AST     Sunrise
Sun -- 07:19 AM AST     0.74 feet High Tide
Sun -- 01:50 PM AST     Moonset
Sun -- 06:10 PM AST     Sunset
Sun -- 09:24 PM AST     -0.11 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 (6,6,7,8)
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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.