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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 6:10AM | Sunset 6:50PM | Thursday August 22, 2019 2:08 PM AST (18:08 UTC) | Moonrise 11:35PM | Moonset 11:49AM | Illumination 54% |  |
AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 1002 Am Ast Thu Aug 22 2019
Rest of today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Numerous showers through the day.
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 through the night.
Friday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers through the day.
Friday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered 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 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Monday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Rest of today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Numerous showers through the day.
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 through the night.
Friday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers through the day.
Friday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered 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 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Monday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
AMZ700 1002 Am Ast Thu Aug 22 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 easterly wind flow through the end of the workweek. A weak tropical wave will continue to move across the area today. This will increase the potential for shower and Thunderstorm activity, as well as generating locally choppy marine conditions across the atlantic waters through at least late Friday night.
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 easterly wind flow through the end of the workweek. A weak tropical wave will continue to move across the area today. This will increase the potential for shower and Thunderstorm activity, as well as generating locally choppy marine conditions across the atlantic waters through at least late Friday night.
7 Day Forecast for Marine Location Near Santo Domingo, PR
Hourly EDIT Helplocation: 18.1, -66.75 debug
Area Discussion for - San Juan, PR
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxca62 tjsj 221745 afdsju area forecast discussion national weather service san juan pr 145 pm ast Thu aug 22 2019 Synopsis Passing tropical wave and associate plume of moisture will affect the region through Friday. Relative stable conditions are expected on Saturday, before the next tropical wave approaches the region late Saturday night into Sunday. Although the entrance of relatively drier and stable air mass accompanied by suspended saharan dust will dominate the local area, locally induced showers are expected each afternoon. Lack of upper level support will limit thunderstorm development. Short term Tonight through Saturday... remnants from afternoon shower and thunderstorm activity is expected to linger across portions of northwestern puerto rico and waters west of puerto rico through the evening hours. During the overnight and early morning hours, showers and possible isolated thunderstorms, associated to a passing tropical wave, are expected to affect the regional waters and portions of eastern puerto rico and the u.S. Virgin islands. As the day progresses, locally induced showers are expected to develop over the northwestern quadrant of puerto rico, as well as downwind from the local islands and sierra de luquillo. Although upper level support for thunderstorm development is not expected, isolated thunderstorms cannot be ruled out in the afternoon. Localized urban and small stream flooding possible across the northwestern quadrant of the island. Somewhat improved conditions are expected between late Friday night into Saturday. However, locally induced showers are possible, particularly during the afternoon hours. If any, above- normal temperatures and heat index will be a threat during this period. Long term Sunday through Wednesday... Prev discussion issued 503 am ast Thu aug 22 2019 Sunday, residual moisture associated with a tropical wave will linger through the early afternoon on Sunday. The moisture coupled with daytime heating and local effects will yield showers and thunderstorms during the afternoon across the interior and western areas of puerto rico. There is a possibility for urban and small stream flooding during the afternoon in flood prone areas. Sunday |
evening the moisture will abate as a dry saharan air mass push in from the east atlantic. The dry saharan air is forecast to persist through early part of the next week. Therefore, expect hazy skies with isolated to scattered showers mainly during the afternoon with the chance for isolated thunderstorms over western puerto rico. Once again showers will develop due to daytime heating and local effects. However, due to modest low-level moisture and limited upper-level instability as a result of mid to upper-level ridges showers will be short-lived. By Tuesday the 700 mb high shift to the southwest this shift in the high will allow the tropical moisture to pool into the region from the east. The return of the deep tropical moisture will cause the dry saharan air to diminish over the region. Also, the tropical moisture will aid in the development of showers and isolated thunderstorms during the afternoon especially over and south of the cordillera central through the middle of the week. Aviation Brief periods of MVFR conds will remain possible at jbq in shra tsra through about 22 22z. As the tropical wave moves away tonight, conditions will improve with vcsh possible at the leeward and usvi terminals overnight. Ese winds at 10 to 15 knots with some sea breeze variations through 22 22z becoming light and variable overnight. Marine Choppy marine conditions with seas up to 6 feet and winds up to 20 knots expected across the atlantic waters. Thus, small craft operators should exercise caution across these areas. Elsewhere, tranquil marine conditions with seas up to 5 feet and winds up to 15 knots are expected to prevail. There is a moderate risk of rip currents for the northern and southeastern beaches of puerto rico, as well as most beaches of vieques, culebra and saint croix. Preliminary point temps pops Sju 78 90 78 90 40 20 50 50 stt 80 89 80 88 40 30 40 40 Sju watches warnings advisories Pr... None. Vi... None. Am... None. Short term... Er long term... .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 Temp | Water Temp | Waves | Pressure | DewPt |
| MGIP4 - 9759110 - Magueyes Islands, PR | 18 mi | 56 min | SSE 8.9 G 14 | 85°F | 85°F | 1016.4 hPa | ||
| MGZP4 - 9759394 - Mayaguez, PR | 23 mi | 56 min | 83°F | 86°F | 1016.1 hPa | |||
| AROP4 - 9757809 - Arecibo, PR | 26 mi | 50 min | ENE 1.9 G 5.1 | |||||
| JOXP4 - Jobos Bay Reserve, Puerto Rico | 30 mi | 83 min | ENE 1.9 | 82°F | 1018 hPa | 77°F | ||
| PTRP4 | 32 mi | 33 min | NW 2.9 G 6 | 82°F | ||||
| 41115 - Rincon, Puerto Rico (181) | 34 mi | 38 min | 85°F | 2 ft | ||||
| SJNP4 - 9755371 - San Juan, PR | 42 mi | 50 min | NE 4.1 G 7 | 84°F | 85°F | 1016 hPa | ||
| 41053 - San Juan, PR | 43 mi | 68 min | E 5.8 G 7.8 | 82°F | 84°F | 3 ft | 1015.5 hPa (-1.0) | |
| YABP4 - 9754228 - Yabucoa Harbor, PR | 49 mi | 50 min | 87°F | 75°F |
Wind History for Penuelas (Punta Guayanilla), 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 airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Link to 5 minute data for TJPS
Wind History from JPS (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | |
| Last 24hr | E | NE | NE | Calm | ||||||||||||||||||||
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Tide / Current Tables for Playa de Ponce, Puerto Rico
EDIT Weekend mode (on/off) (on/off) Help One Week of DataPlaya de Ponce
Click for Map
Thu -- 03:58 AM AST 0.25 feet Low Tide
Thu -- 06:10 AM AST Sunrise
Thu -- 11:47 AM AST Moonset
Thu -- 02:57 PM AST 0.68 feet Low Tide
Thu -- 04:06 PM AST 0.70 feet High Tide
Thu -- 06:48 PM AST Sunset
Thu -- 11:08 PM AST 0.75 feet High Tide
Thu -- 11:33 PM AST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 03:58 AM AST 0.25 feet Low Tide
Thu -- 06:10 AM AST Sunrise
Thu -- 11:47 AM AST Moonset
Thu -- 02:57 PM AST 0.68 feet Low Tide
Thu -- 04:06 PM AST 0.70 feet High Tide
Thu -- 06:48 PM AST Sunset
Thu -- 11:08 PM AST 0.75 feet High Tide
Thu -- 11:33 PM AST Moonrise
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 | 0.7 | 0.5 | 0.3 | 0.2 | 0.3 | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
Tide / Current Tables for Guanica, Puerto Rico
EDIT (on/off) Help One Week of DataGuánica
Click for Map
Thu -- 04:29 AM AST 0.22 feet Low Tide
Thu -- 06:11 AM AST Sunrise
Thu -- 11:49 AM AST Moonset
Thu -- 03:23 PM AST 0.61 feet High Tide
Thu -- 03:28 PM AST 0.60 feet Low Tide
Thu -- 06:49 PM AST Sunset
Thu -- 10:25 PM AST 0.66 feet High Tide
Thu -- 11:35 PM AST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 04:29 AM AST 0.22 feet Low Tide
Thu -- 06:11 AM AST Sunrise
Thu -- 11:49 AM AST Moonset
Thu -- 03:23 PM AST 0.61 feet High Tide
Thu -- 03:28 PM AST 0.60 feet Low Tide
Thu -- 06:49 PM AST Sunset
Thu -- 10:25 PM AST 0.66 feet High Tide
Thu -- 11:35 PM AST Moonrise
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 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 0.7 | 0.7 |
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 (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. |