Tuesday, July7, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Rinc�n, 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 6:01AMSunset 7:15PM Tuesday July 7, 2020 9:07 PM AST (01:07 UTC) Moonrise 9:35PMMoonset 8:11AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
    EDIT      (on/off)   Help
AMZ742 Coastal Waters Of Northwestern Puerto Rico Out 10 Nm- 410 Pm Ast Tue Jul 7 2020
Tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers and isolated Thunderstorms.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Wednesday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Thursday..East winds 10 to 15 knots backing north in the afternoon. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms in the afternoon.
Thursday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Saturday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Sunday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms.
AMZ700 410 Pm Ast Tue Jul 7 2020
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure will maintain a moderate to fresh easterly winds across the local waters. In the meantime, a passing tropical wave will generate locally higher winds, resulting in hazardous seas across the local atlantic and caribbean offshore, anegada passage and coastal waters of eastern puerto rico and the usvi, where small craft advisories are in effect through Wednesday evening. Marine conditions are expected to improve thereafter, but will deteriorate once again during the upcoming weekend.


7 Day Forecast for Marine Location Near Rinc�n, PR
   Hourly   EDIT   Help
location: 19.03, -68.44     debug


Area Discussion for - San Juan, PR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXCA62 TJSJ 080056 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 856 PM AST Tue Jul 7 2020

UPDATE.

Showers and thunderstorms are currently moving from east to west across the region this evening associated with a tropical wave. There has been some lightning and heavy rainfall, yet the showers are moving too fast for accumulations to be significant. These thunderstorms are also producing gusty winds, with gusts up to 32 mph observed so far. Showers and isolated thunderstorms will continue across the region overnight and into tomorrow. Satellite precipitable water values show a distinct back edge to the wave, which is still to the east of the leeward islands. Thus, the threat for showers associated with this wave will continue through the morning hours for eastern Puerto Rico and the USVI. Then tomorrow afternoon, there should be enough moisture left to produce showers and isolated thunderstorms for northwestern Puerto Rico. Due to strong low-level winds, showers will quickly be pushed offshore and likely help to limit rain accumulation potential. Thereafter, dry air and Saharan dust moves in for the rest of the workweek.

AVIATION.

Approaching tropical wave will continue to bring SHRA/VCTS for regional terminals. The thunderstorm threat is lesser now that the initial burst of storms have weakened and moved away. However, some lightning is still possible overnight and through the morning for TJSJ/TIST/TISX/TNCM/TKPK, along with passing showers. Tomorrow afternoon, TSRA possible for TJBQ/TJMZ. Winds ESE at 10 to 20 knots.

MARINE. Choppy seas up to 7 feet continue for the local waters, with winds up to 20 knots and potentially higher gusts with nearby thunderstorms. Small Craft Advisory conditions will continue till tomorrow night. Thereafter, seas up to 6 feet with moderate to fresh ESE winds for the rest of the workweek mean small craft operators should still exercise caution.

PREV DISCUSSION. /issued 357 PM AST Tue Jul 7 2020/

SYNOPSIS . An active weather pattern is expected tonight into Wednesday morning with the passage of a strong tropical wave. Drier air accompanied by Saharan Dust will follow, persisting through at least late Thursday night before the next tropical waves approach the area on Friday and Saturday night into Sunday. All three waves will enhance the chance for shower and thunderstorm activity, as well as the potential for urban and small stream flooding.

SHORT TERM . Tonight through Thursday .

An active weather pattern is expected to continue tonight into Wednesday morning as an active tropical wave streams across the northeastern Caribbean. Enhance low-level convergence and high moisture content (model-estimated between 2.1 and 2.3 inches) will support widespread shower and thunderstorm activity, clustering across the eastern half of Puerto Rico and the US Virgin Islands. This activity will enhance the potential for urban and small stream flooding, while generating gusty conditions near the heaviest and most persistent rains. As the tropical wave continues to move west and away from the region, a drier air mass accompanied by suspended Saharan dust will quickly move in by Wednesday afternoon and persist over the region during the next few days. Although fair weather conditions with hazy skies will prevail, limited shower activity can still be expected with overnight and early morning showers moving into portions of eastern PR and USVI, followed by afternoon showers and isolated thunderstorms over northwestern sections of Puerto Rico.

LONG TERM . Friday through Tuesday . From Prev Discussion.

A TUTT will approach the area from the east northeast beginning on Thursday and will cross over Puerto Rico and the U.S. Virgin Islands on Friday. Another upper level high pressure will move over the area by Sunday night. The next TUTT to follow with a northerly jet up to 30 knots separating the two passing over the area on Monday and Monday night.

At mid levels high pressure now over the eastern sub-tropical Atlantic will shift to north of Puerto Rico and the U.S. Virgin Islands by Monday. A trough at mid levels begins to deepen over the tropical Atlantic and by Tuesday of next week is expected to be crossing 60 degrees west longitude.

At lower levels moisture remains mostly below 800 mb except for a tropical wave passage on Sunday. There does appear to be a weak wave passage on Friday, but it is drier.

Shower activity will be somewhat complex during this period. On Friday a weak tropical wave passage will bring an increase of shower and thunderstorm, but mainly to western Puerto Rico. Some drying occurs on Saturday ahead of a tropical wave on Saturday night and Sunday that will bring showers and thunderstorms to both Puerto Rico and the U.S Virgin Islands. The GFS is trending toward a more vigorous system that even showed a closed circulation at 850 mb at 12/18Z with 50 knots of wind in its northeast quadrant. Fortunately even if this does materialize-- and it was only present for about 6 hours in the model--it is well south of the area at 15 degrees north and would not affect us except to enhance convection over the area. The trend toward a stronger wave, however, may be indicative of a greater amount of rain the wave will be capable of producing for us. Nevertheless, it is not expected to be as strong as the one to pass tonight and Wednesday.

The southeast flow on Sunday will allow temperatures in the Greater San Juan Metropolitan area and vicinity to warm a little more than would be expected for the cloudiness expected. However Saharan dust follows closely on the heels of this wave and will also have a drying affect. Breezy conditions are also expected with the Sunday wave. Wind flows turn more northeasterly Monday and Tuesday and will allow more coastal showers in the northeast during the overnight and early morning and cooler temperatures for the north coast.

AVIATION . A tropical wave will bring SHRA/TSRA across the local flying area. SHRA/TSRA will affect the interior and western of PR thru at least 07/22z. TSRA/SHRA will return over USVI/E-PR after 0800z. Winds will continue from the E-ESE at 10 to 20 knots with higher gusts. Winds will drop around 10 knots after 07/23z, but gusty near SHRA/TSRA, and increasing once again after 08/13z.

MARINE . Choppy to hazardous marine conditions with seas up to 7 feet and winds up to 20 knots are expected across all, but coastal waters of western Puerto Rico. As a result, Small Craft Advisories are in effect for the offshore Atlantic and Caribbean waters, Anegada Passage, as well as for coastal waters of eastern Puerto Rico and surrounding the US Virgin Islands. These conditions are expected to prevail through at least Wednesday evening, gradually improving thereafter. There is a moderate risk of rip currents for beaches along the north and southeast coast of Puerto Rico, as well as for most beaches of Culebra, Vieques, Saint Thomas and Saint Croix.

PRELIMINARY POINT TEMPS/POPS. SJU 78 90 79 92 / 60 60 10 30 STT 82 89 80 92 / 50 40 10 30

SJU WATCHES/WARNINGS/ADVISORIES. PR . VI . None. AM . Small Craft Advisory until 8 PM AST Wednesday for Caribbean Waters of Puerto Rico from 10 NM to 17N-Anegada Passage Southward to 17N-Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-Coastal Waters of Northern USVI and Culebra out 10 NM-Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out 10 NM.



SHORT TERM . mb LONG TERM . 99 PUBLIC DESK . ICP


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MISP4 - 9759938 - Mona Island, PR 70 mi134 min 83°F 85°F1015 hPa
MGZP4 - 9759394 - Mayaguez, PR 88 mi56 min 82°F 86°F1015.5 hPa

Wind History for Mayaguez, PR
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Aquadilla, Rafael Hernandez Airport, PR78 mi78 minESE 510.00 miFair0°F0°F%1015.6 hPa

Link to 5 minute data for TJBQ

Wind History from JBQ (wind in knots)
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last 24hr------------------E6E5SE10
G17
E17
G22
E16
G22
E14
G18
E14
G18
E13E6E9E9E11E5E5E7
1 day ago------------------E4E6E10E11
G16
E15
G20
E19
G23
E19
G26
E20
G27
E22
G22
E15
G19
E17
G21
E13
G21
E15
G19
E14E13
G21
2 days ago------------------SE3E8E7E9E11E14
G19
E15
G19
SE4E9E13SE6CalmCalmS3Calm

Tide / Current Tables for Mona Island, Puerto Rico
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Aguadilla, Crashboat Beach, Puerto Rico
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of Puerto Rico    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
Wind Forecast for (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Puerto Rico,Virgin Islands
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
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.