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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 5:45AM | Sunset 6:54PM | Sunday May 26, 2019 3:44 AM AST (07:44 UTC) | Moonrise 12:39AM | Moonset 12:21PM | Illumination 52% |  |
AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 846 Pm Ast Sat May 25 2019
Rest of tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
Sunday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers in the morning, then isolated Thunderstorms in the afternoon.
Sunday night..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms in the morning. Scattered showers through the day.
Monday night..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. East swell around 4 feet after midnight. Isolated showers.
Tuesday..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.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms. Scattered showers.
Thursday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated Thunderstorms. Scattered showers.
Rest of tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
Sunday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers in the morning, then isolated Thunderstorms in the afternoon.
Sunday night..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms in the morning. Scattered showers through the day.
Monday night..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. East swell around 4 feet after midnight. Isolated showers.
Tuesday..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.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated Thunderstorms. Scattered showers.
Thursday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated Thunderstorms. Scattered showers.
AMZ700 846 Pm Ast Sat May 25 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A moderate easterly wind flow will continue across the regional waters through at least Sunday. A more southeasterly wind flow is expected to return from Sunday night through early next week. A slight increase in seas is forecast Monday night through midweek due to the arrival of a northerly swell across the atlantic waters. Showers with possible isolated Thunderstorms are expected to increase across the regional waters on Monday and Tuesday.
Synopsis for puerto rico and the uS. Virgin islands waters... A moderate easterly wind flow will continue across the regional waters through at least Sunday. A more southeasterly wind flow is expected to return from Sunday night through early next week. A slight increase in seas is forecast Monday night through midweek due to the arrival of a northerly swell across the atlantic waters. Showers with possible isolated Thunderstorms are expected to increase across the regional waters on Monday and 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 260039 afdsju area forecast discussion national weather service san juan pr 839 pm ast Sat may 25 2019 Update Showers and thunderstorms developed across interior and western portions of puerto rico during the afternoon hours. The heaviest rainfall was observed across portions of the municipalities of las marias, anasco, and mayaguez where 1 to 2 inches of rain fell. For tonight, mainly fair weather conditions are expected across the local area. On Sunday, moisture is expected to increase once again. This will result in an increase in the coverage of showers and thunderstorms across the area. Scattered showers are expected to increase across the local waters during the morning hours, affecting portions of the usvi and eastern pr. Then, during the afternoon hours, heavy showers and isolated thunderstorms are expected to develop across interior and the northwest quadrant of pr. Additional showers are likely across eastern portions of pr, including the san juan metro area. The heaviest rainfall activity could result in urban and small stream flooding as well as mudslides in areas of steep terrain. Across the usvi, even though isolated to scattered showers can be expected from time to time, significant rainfall accumulations are not expected at this time. Aviation Periods of bkn ceilings along with vcsh may result in brief MVFR conditions at times across tncm tkpk through 26 20z. Vcsh are possible across the usvi terminals after 26 06z. Shra and isolated TS are expected in the vicinity of tjbq tjmz tjsj tjps between 26 16z and 26 22z. This may result in MVFR to possibly ifr conditions at times. Winds are expected to be light and variable overnight, increasing to 10 to 15 knots from the ese with sea breeze variations after 26 14z. Marine Seas between 2 and 5 feet will prevail across the regional waters along with a moderate risk of rip currents across the north-facing beaches of pr, culebra, vieques, and saint thomas through Sunday. Prev discussion issued 536 pm ast Sat may 25 2019 synopsis... Fair weather conditions should continue overnight through early Sunday morning across the forecast area. An easterly perturbation and a moist environment will increase the potential for showers and thunderstorms on Sunday. A wetter pattern is expected to prevail through early next week. Short term... a pocket of dry air between 850-700mb is expected to move west of the forecast area by Sunday morning. This should keep the chances for showers low through the overnight hours across the islands. Low level moisture is expected to recover quickly on Sunday as an easterly perturbation currently just east of the leeward islands moves into the eastern caribbean. Winds are expected to shift once again from the southeast and diurnally induced afternoon showers with isolated thunderstorms should develop mainly over the interior and northwest quadrant of pr as well over the san juan metro area. Urban and small stream flooding is possible with these showers. |
A moist environment will continue on Monday across the forecast area with the GFS indicating near 2.25 inches of precipitable water(pwat) across the caribbean waters and near 2.10 across the usvi and pr. Although there will be some divergence aloft each day, current model guidance indicates that by early Monday morning scattered to locally numerous showers with thunderstorms should increase from the caribbean waters and across the usvi and the east southern sections of pr. Forecast soundings are indicating a saturated atmosphere after 12z on Monday and under a southeast steering wind flow, showers could persist across the southeastern sections of pr through the day. This will be followed by additional heavy showers with isolated thunderstorms along the northern and western sections of pr. Saturated soils on Monday could lead to mudslides and quick river rises with the heaviest showers. Long term... Tuesday through Saturday... From prev discussion recent model guidance, which has been fairly consistent, suggests that a wet pattern will dominate through most of the long-term forecast period. This is the result of high tropical moisture advection into the region with pw model estimated values ranging from 2.12 inches on Tuesday morning to 1.70 inches on Friday afternoon. In addition, two independent southeasterly propagating mid to upper level short-wave troughs will approach the region, resulting in favorable upper level conditions. The peak of this activity is expected on Tuesday into Wednesday and then on Thursday when each trough is forecast to move across hispanola, which places the associated divergence pattern over the forecast area. If models are correct, these conditions will support enhanced shower and thunderstorms development across the local islands and waters through the end of the workweek. Conditions are to improve on Saturday, but afternoon convection remains possible. Aviation...VFR conds entire prd except for shra psbl isold tsra with brief MVFR mainly ovr ctrl mtn range of pr and vcty tjmz tjbq tjsj tjnr til 25 23z. Sct-bkn lyr nr fl030... Fl050... fl100... Mostly clr abv. Few tops abv fl300 W tsra.Sfc wnd fm E 10-15 kt with sea breeze variations and occasional gusts... Bcmg lgt vrb aft 25 22z. Marine... Seas between 3-5 feet and east winds up to 15 kt will continue through the rest of the weekend. Seas will increase between 4-6 feet later on Monday and continue through at least Tuesday due to a long period northerly swell. This swell will increase the risk of rip currents along the northern beaches of the islands. East to southeast winds will prevail from late Sunday through early next week. Preliminary point temps pops Sju 78 89 77 88 10 40 40 40 stt 79 87 77 85 30 30 30 20 Sju watches warnings advisories Pr... None. Vi... None. Am... None. Short term... Gl long term... .Gl |
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 |
| ESPP4 - 9752695 - Esperanza, PR | 2 mi | 44 min | NNE 1.9 G 4.1 | 77°F | 82°F | 1014.1 hPa (-1.5) | ||
| 41056 | 10 mi | 44 min | ENE 7.8 G 7.8 | 80°F | 82°F | 1013 hPa (-1.5) | ||
| CLBP4 - 9752235 - Culebra, PR | 15 mi | 44 min | 78°F | 83°F | 1014.2 hPa (-1.4) | |||
| YABP4 - 9754228 - Yabucoa Harbor, PR | 20 mi | 44 min | 76°F | 73°F | ||||
| CHAV3 - 9751639 - Charlotte Amalie, VI | 32 mi | 44 min | 79°F | 1013.6 hPa (-1.7) | ||||
| 41052 - South of St. John, Virgin Islands | 38 mi | 44 min | E 12 G 14 | 81°F | 82°F | 2 ft | 1012.6 hPa (-1.5) | |
| LAMV3 | 41 mi | 44 min | 79°F | 82°F | ||||
| 41053 - San Juan, PR | 42 mi | 44 min | ESE 7.8 G 9.7 | 80°F | 81°F | 4 ft | 1013.3 hPa (-1.3) | |
| JOXP4 - Jobos Bay Reserve, Puerto Rico | 42 mi | 119 min | N 1.9 | 77°F | 1016 hPa | 72°F | ||
| SJNP4 - 9755371 - San Juan, PR | 42 mi | 44 min | E 5.1 G 8 | 80°F | 82°F | 1014.2 hPa (-1.3) | ||
| CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands | 48 mi | 44 min | E 4.1 G 8 | 79°F | 83°F | 1013.2 hPa (-1.3) | ||
| LTBV3 - 9751401 - Lime Tree Bay, VI | 48 mi | 44 min | E 2.9 G 7 | 80°F | 84°F | 1014 hPa (-1.3) |
Wind History for Isabel Segunda, Vieques Island, PR
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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| 2 days ago |
Airport Reports
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Tide / Current Tables for Vieques Island, Puerto Rico
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for Vieques Passage, Puerto Rico Current
EDIT (on/off) Help One Week of DataVieques Passage
Click for Map
Sun -- 12:39 AM AST Moonrise
Sun -- 01:14 AM AST 0.00 knots Slack
Sun -- 04:15 AM AST 0.42 knots Max Flood
Sun -- 05:46 AM AST Sunrise
Sun -- 07:01 AM AST -0.00 knots Slack
Sun -- 10:42 AM AST -0.70 knots Max Ebb
Sun -- 12:21 PM AST Moonset
Sun -- 12:34 PM AST Last Quarter
Sun -- 02:15 PM AST 0.00 knots Slack
Sun -- 05:21 PM AST 0.56 knots Max Flood
Sun -- 06:52 PM AST Sunset
Sun -- 08:43 PM AST -0.00 knots Slack
Sun -- 11:29 PM AST -0.39 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:39 AM AST Moonrise
Sun -- 01:14 AM AST 0.00 knots Slack
Sun -- 04:15 AM AST 0.42 knots Max Flood
Sun -- 05:46 AM AST Sunrise
Sun -- 07:01 AM AST -0.00 knots Slack
Sun -- 10:42 AM AST -0.70 knots Max Ebb
Sun -- 12:21 PM AST Moonset
Sun -- 12:34 PM AST Last Quarter
Sun -- 02:15 PM AST 0.00 knots Slack
Sun -- 05:21 PM AST 0.56 knots Max Flood
Sun -- 06:52 PM AST Sunset
Sun -- 08:43 PM AST -0.00 knots Slack
Sun -- 11:29 PM AST -0.39 knots Max Ebb
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 |
| -0.2 | -0.1 | 0.2 | 0.3 | 0.4 | 0.4 | 0.2 | 0 | -0.3 | -0.5 | -0.7 | -0.7 | -0.6 | -0.4 | -0.1 | 0.2 | 0.4 | 0.5 | 0.5 | 0.4 | 0.2 | -0.1 | -0.3 | -0.4 |
Weather Map and Satellite Images
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GOES 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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for (3,6,7,8)
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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. |