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Marine Weather and Tides
Version 3.4 |
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. 5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds. |
| Sunrise 6:11AM | Sunset 6:16PM | Monday September 25, 2017 2:47 PM AST (18:47 UTC) | Moonrise 10:43AM | Moonset 10:19PM | Illumination 26% |  |
Marine Forecasts
EDIT (on/off) Help| AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 1022 Am Ast Mon Sep 25 2017 Rest of today..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Scattered Thunderstorms. Tonight..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Scattered Thunderstorms. Tuesday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Scattered showers in the morning. Isolated Thunderstorms through the day. Tuesday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Isolated showers. Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Southeast swell around 4 feet. Scattered showers. Isolated Thunderstorms. Thursday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Scattered showers. Isolated Thunderstorms. Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Scattered showers and isolated Thunderstorms. | AMZ700 1022 Am Ast Mon Sep 25 2017 Synopsis for puerto rico and the uS. Virgin islands waters... Southeast to east winds will continue the next several days with a tropical wave approaching from the east. Rain chances will increase today and Tuesday across the region with locally heavy downpours and reduced visibilities possible. More seasonable easterly winds will push into the coastal waters by late Tuesday. |
7 Day Forecast for Marine Location Near Esperanza, PR
Hourly EDIT Helplocation: 18.12, -65.46 debug
Area Discussion for - San Juan, PR
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxca62 tjsj 251809 afdsju area forecast discussion national weather service san juan pr issued by national weather service miami fl 209 pm ast Mon sep 25 2017 Aviation Convection is ongoing in western interior puerto rico this afternoon with additional shower or thunderstorm activity possible through this evening.VFR conditions will likely prevail the next 24 hours outside of any convection. As a tropical wave continues to move westward across the region, additional precipitation will be possible on Tuesday. Prev discussion... Issued issued by national weather service miami fl short term... deep tropical moisture remains in place across the region with southeast wind flow. Precipitable water values will remain over 2 inches today. A weak tropical wave will move over the islands today through the afternoon on Tuesday increasing the rain chances. Heat index values will be near 100 for the next few days, bringing hot and sticky weather to the area. This will make recovery efforts difficult and overall living unpleasant as electricity remains out across the island. Long term... relatively drier conditions are expected by late Tuesday as a sal |
layer will move into the area precipitable water values drop below 2 inches. This will decrease the pops for the middle part of the week. Flow will be easterly and pops will be around climatological normals for the weekend. Marine... southeast winds will continue through Monday night. Scattered showers and thunderstorms will move in from the east today. Winds will increase around and showers and thunderstorms that do develop. Tuesday winds will be more easterly. Preliminary point temps pops Sju 80 86 80 86 50 30 20 10 stt 82 83 82 83 50 30 20 20 Sju watches warnings advisories Pr... High rip current risk until 8 pm ast this evening for mayaguez and vicinity-north central-northeast-northwest-ponce and vicinity-san juan and vicinity-southeast-southwest-western interior. Vi... None. Am... High rip current risk until 8 pm ast this evening for coastal waters of southwestern puerto rico out 10 nm. Short term... 99 long term... .99 |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| 41056 | 10 mi | 47 min | ESE 7.8 G 9.7 | 83°F | 1014 hPa (-2.5) | |||
| CLBP4 - 9752235 - Culebra, PR | 15 mi | 47 min | 89°F | 84°F | 1014.4 hPa (-2.3) | |||
| YABP4 - 9754228 - Yabucoa Harbor, PR | 20 mi | 47 min | 87°F | |||||
| 41052 - South of St. John, Virgin Islands | 38 mi | 47 min | E 9.7 G 12 | 82°F | 3 ft | 1012.5 hPa (-2.0) | ||
| LAMV3 | 41 mi | 47 min | 82°F | 84°F | ||||
| SJNP4 - 9755371 - San Juan, PR | 42 mi | 59 min | 92°F | 82°F | 1013.4 hPa | |||
| JOXP4 - Jobos Bay Reserve, Puerto Rico | 42 mi | 62 min | E 8.9 | 86°F | 1015 hPa | 76°F | ||
| 41053 - San Juan, PR | 42 mi | 47 min | SSE 12 G 16 | 88°F | 83°F | 3 ft | 1012.5 hPa (-2.8) | |
| CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands | 48 mi | 47 min | 89°F | 83°F | 1013.9 hPa (-2.7) |
Wind History for Isabel Segunda, Vieques Island, PR
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airportsClick EDIT to select an airport
Tide / Current Tables for Vieques Island, Puerto Rico
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Vieques Island Click for Map Mon -- 03:36 AM AST 0.09 feet Low Tide Mon -- 06:11 AM AST Sunrise Mon -- 10:43 AM AST Moonrise Mon -- 11:52 AM AST 0.60 feet High Tide Mon -- 06:15 PM AST Sunset Mon -- 10:19 PM AST Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 |
Tide / Current Tables for Vieques Passage, Puerto Rico Current
EDIT (on/off) Help One Week of Data| Vieques Passage Click for Map Mon -- 02:37 AM AST 0.46 knots Max Flood Mon -- 05:24 AM AST -0.00 knots Slack Mon -- 06:11 AM AST Sunrise Mon -- 08:22 AM AST -0.50 knots Max Ebb Mon -- 10:43 AM AST Moonrise Mon -- 11:12 AM AST 0.00 knots Slack Mon -- 02:34 PM AST 0.68 knots Max Flood Mon -- 05:46 PM AST -0.00 knots Slack Mon -- 06:15 PM AST Sunset Mon -- 09:09 PM AST -0.74 knots Max Ebb Mon -- 10:19 PM AST Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0 | 0.3 | 0.4 | 0.4 | 0.3 | 0.1 | -0.2 | -0.4 | -0.5 | -0.5 | -0.3 | -0.1 | 0.2 | 0.5 | 0.7 | 0.7 | 0.5 | 0.3 | -0.1 | -0.4 | -0.6 | -0.7 | -0.7 | -0.5 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Puerto Rico EDIT  |
Wind Forecast for (14,3,4,5)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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 numerious 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. |