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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:05AM | Sunset 6:44PM | Saturday August 24, 2019 3:47 PM AST (19:47 UTC) | Moonrise 12:14AM | Moonset 1:33PM | Illumination 32% |  |
AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 1017 Am Ast Sat Aug 24 2019
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
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.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Sunday 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.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms. Scattered showers.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Wednesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Scattered showers and isolated Thunderstorms.
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
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.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Sunday 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.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated Thunderstorms. Scattered showers.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Wednesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Scattered showers and isolated Thunderstorms.
AMZ700 1017 Am Ast Sat Aug 24 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure over the north central atlantic will continue to promote a moderate east to southeast wind flow through Monday. Moisture behind a weak tropical wave will aid in developing passing showers and isolated Thunderstorms over the local waters late today. Drier dusty air will arrive early next week associated with somewhat stronger winds.
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure over the north central atlantic will continue to promote a moderate east to southeast wind flow through Monday. Moisture behind a weak tropical wave will aid in developing passing showers and isolated Thunderstorms over the local waters late today. Drier dusty air will arrive early next week associated with somewhat stronger winds.
7 Day Forecast for Marine Location Near Aguas Claras, PR
Hourly EDIT Helplocation: 18.23, -65.62 debug
Area Discussion for - San Juan, PR
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxca62 tjsj 241739 afdsju area forecast discussion national weather service san juan pr 139 pm ast Sat aug 24 2019 Synopsis Scattered showers will continue for the rest of the day, with the potential for heavy rain and frequent lightning in the stronger thunderstorms. Thereafter, a large area of drier air will move in for the beginning of next week and last into Tuesday. A tropical system has developed in the atlantic and it is forecast to move into the eastern caribbean next Wednesday. Though uncertainty is high, active weather is likely for the middle to end of the week. Short term Today through Monday goes-16 IR shows a shallow patch of moisture moving across the leeward islands. This moisture is associated with a weak tropical wave that has moved into the caribbean waters this morning. This wave will continue to move through the region through early Sunday morning. This tropical wave will produce isolated to scattered showers this early afternoon across the u.S. Virgin islands and eastern areas of puerto rico. Most of these showers, however, should be brief and only lead to minor rainfall accumulations. Later this afternoon the moisture is expected to continue to advance to the west. The combination of low-level moisture, local effects and diurnal heating will initiate showers and isolated thunderstorms across the interior, western and metro areas of |
puerto rico. In addition, 00z high-res WRF model develops streamers downwind of the u.S. Virgin islands and across metro areas of san juan this afternoon. Streamers that do develop could cause urban and small stream flooding especially if they develop over san juan metro areas. Sunday, moisture will linger across the area and induce isolated to scattered showers across most of the region. Then a dry saharan air mass is forecast to advance into the u.S. Virgin islands and eastern puerto rico late in the afternoon. This dense air layer will limit shower activity across the aformentioned areas late Sunday afternoon. The saharan air will continue to progress to the west across other areas of the island by Sunday evening resulting in hazy skies and limited shower activity late Sunday evening into Monday night. Long term Tuesday through Friday dry air and limited showers continue Tuesday, after which our attention turns to tropical depression 5, which is expected to move into the eastern caribbean Wednesday morning and through at least Friday morning. At this point, the system is roughly 800 miles ese of barbados, and moving to the west. There is a high degree of uncertainty in the track, and especially intensity of this system as it nears. Most forecast models suggest the system will move to the south of puerto rico as a tropical depression or weaker. However, the national hurricane center does suggest this system has the potential to reach hurricane strength. Those in the region should monitor our facebook and twitter pages, and the nhc website |
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 | 9 mi | 48 min | 86°F | |||||
| ESPP4 - 9752695 - Esperanza, PR | 12 mi | 48 min | ESE 7 G 9.9 | 87°F | 86°F | 1016.8 hPa (-1.3) | ||
| YABP4 - 9754228 - Yabucoa Harbor, PR | 17 mi | 48 min | 90°F | 77°F | ||||
| CLBP4 - 9752235 - Culebra, PR | 18 mi | 54 min | 92°F | 87°F | 1016.6 hPa | |||
| 41053 - San Juan, PR | 30 mi | 48 min | E 16 G 18 | 85°F | 85°F | 3 ft | 1015.3 hPa (-1.2) | |
| SJNP4 - 9755371 - San Juan, PR | 31 mi | 48 min | E 11 G 14 | 84°F | 85°F | 1016.6 hPa (-1.0) | ||
| JOXP4 - Jobos Bay Reserve, Puerto Rico | 37 mi | 63 min | E 6 | 89°F | 1017 hPa | 77°F | ||
| CHAV3 - 9751639 - Charlotte Amalie, VI | 38 mi | 54 min | 87°F | 1015.9 hPa | ||||
| 41052 - South of St. John, Virgin Islands | 45 mi | 48 min | E 12 G 14 | 86°F | 85°F | 3 ft | 1015 hPa (-1.7) | |
| LAMV3 | 48 mi | 48 min | 85°F | 87°F |
Wind History for Fajardo, 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.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| San Juan, Luis Munoz Marin International Airport, PR | 24 mi | 1.9 hrs | E 14 | 10.00 mi | Partly Cloudy | 89°F | 79°F | 72% | 1016.2 hPa |
Link to 5 minute data for TJSJ
Wind History from JSJ (wind in knots)
| 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 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 | |
| Last 24hr | E G24 | E | E | E | E | E | E | S | S | Calm | Calm | SE | SE | E | E | E | E | NE | E | E | ||||
| 1 day ago | SE | E | SE G19 | E | SE | S | SE | E | SE | E | E | SE | SE | E | E | E | E | E | E G24 | E | E G22 | |||
| 2 days ago | NE G23 | E | E | E | E | E | E | S | Calm | Calm | S | SE | E | E | Calm | E | SE | SE G16 |
Tide / Current Tables for Roosevelt Roads, Puerto Rico
EDIT Weekend mode (on/off) (on/off) Help One Week of DataRoosevelt Roads
Click for Map
Sat -- 12:13 AM AST Moonrise
Sat -- 02:00 AM AST 0.70 feet High Tide
Sat -- 06:06 AM AST Sunrise
Sat -- 08:54 AM AST 0.09 feet Low Tide
Sat -- 01:32 PM AST Moonset
Sat -- 04:02 PM AST 1.05 feet High Tide
Sat -- 06:43 PM AST Sunset
Sat -- 10:47 PM AST 0.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:13 AM AST Moonrise
Sat -- 02:00 AM AST 0.70 feet High Tide
Sat -- 06:06 AM AST Sunrise
Sat -- 08:54 AM AST 0.09 feet Low Tide
Sat -- 01:32 PM AST Moonset
Sat -- 04:02 PM AST 1.05 feet High Tide
Sat -- 06:43 PM AST Sunset
Sat -- 10:47 PM AST 0.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 10 pm | 11 pm |
| 0.6 | 0.7 | 0.7 | 0.7 | 0.6 | 0.5 | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.3 | 0.5 | 0.7 | 0.9 | 1 | 1 | 1 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.5 |
Tide / Current Tables for Vieques Passage, Puerto Rico Current (2)
EDIT (on/off) Help One Week of DataVieques Passage
Click for Map
Sat -- 12:13 AM AST Moonrise
Sat -- 03:12 AM AST 0.00 knots Slack
Sat -- 05:29 AM AST 0.28 knots Max Flood
Sat -- 06:06 AM AST Sunrise
Sat -- 07:55 AM AST -0.00 knots Slack
Sat -- 10:58 AM AST -0.41 knots Max Ebb
Sat -- 01:32 PM AST Moonset
Sat -- 01:41 PM AST 0.00 knots Slack
Sat -- 05:22 PM AST 0.70 knots Max Flood
Sat -- 06:43 PM AST Sunset
Sat -- 08:46 PM AST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:13 AM AST Moonrise
Sat -- 03:12 AM AST 0.00 knots Slack
Sat -- 05:29 AM AST 0.28 knots Max Flood
Sat -- 06:06 AM AST Sunrise
Sat -- 07:55 AM AST -0.00 knots Slack
Sat -- 10:58 AM AST -0.41 knots Max Ebb
Sat -- 01:32 PM AST Moonset
Sat -- 01:41 PM AST 0.00 knots Slack
Sat -- 05:22 PM AST 0.70 knots Max Flood
Sat -- 06:43 PM AST Sunset
Sat -- 08:46 PM AST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 10 pm | 11 pm |
| -0.7 | -0.5 | -0.3 | -0 | 0.2 | 0.3 | 0.3 | 0.2 | -0 | -0.2 | -0.4 | -0.4 | -0.3 | -0.2 | 0.1 | 0.4 | 0.6 | 0.7 | 0.7 | 0.5 | 0.2 | -0.1 | -0.4 | -0.6 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for (15,3,4,5)
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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. |