|
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 6:56AM | Sunset 6:08PM | Thursday January 17, 2019 5:19 AM AST (09:19 UTC) | Moonrise 2:47PM | Moonset 3:07AM | Illumination 86% |  |
AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 342 Am Ast Thu Jan 17 2019
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Southeast swell around 4 feet. Scattered showers.
Tonight..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Southeast swell around 4 feet in the evening. Scattered showers.
Friday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Friday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Monday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Southeast swell around 4 feet. Scattered showers.
Tonight..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Southeast swell around 4 feet in the evening. Scattered showers.
Friday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Friday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Isolated showers.
Monday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
AMZ700 342 Am Ast Thu Jan 17 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A surface low pressure moving eastward across the north atlantic ocean will promote a gentle to moderate east to southeast wind flow through the end of the work week. Although fairly tranquil marine conditions are expected through the forecast period, a northerly swell will reach and spread across the atlantic waters and local passages through Saturday.
Synopsis for puerto rico and the uS. Virgin islands waters... A surface low pressure moving eastward across the north atlantic ocean will promote a gentle to moderate east to southeast wind flow through the end of the work week. Although fairly tranquil marine conditions are expected through the forecast period, a northerly swell will reach and spread across the atlantic waters and local passages through Saturday.
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 170819 afdsju area forecast discussion national weather service san juan pr 419 am ast Thu jan 17 2019 Synopsis Low-level moisture will continue to result in periods of showers across the region through Saturday. A drier and more stable weather pattern is expected starting Sunday and continuing through the middle of next week as a mid to upper-level ridge amplifies overhead. Winds are expected to increase from the northeast by the middle portion of next week as a strong surface high pressure moves across the western atlantic, tightening the pressure gradient. Short term Today through Saturday... occasional clusters of low to mid level moisture will continue to make its way across the forecast area and bring periods of passing showers to the coastal waters and the windward side of the islands during the rest of the morning hours. A weak low level trough just west and north of the region will maintain a light east to southeast wind flow across the area through at least Friday, then become more east to northeast by Saturday as a surface high pressure ridge will builds north of the region across the west and southwest atlantic. For the rest of today, expect cloud cover and shower activity to diminish by late morning leaving partly sunny skies across the forecast area. Locally and diurnally induced afternoon convection is however expected again during the afternoon mainly over parts of the interior and west sections of puerto rico as well as around the san juan metro. Some showers will be locally heavy especially in the west to northwestern sections of the island. Model guidance and present conditions now suggest that a mid to upper level trough will linger across the region through Friday but will slowly lift east northeast into the tropical atlantic. Therefore expect the shower activity in the easterly trades to be further enhanced as they are steered west northwest producing periods of locally heavy rains. This in turn may lead to minor ponding of water on roadways and in poor drainage areas. However, widespread convection is still not expected during the entire period. This cool advective pattern of early morning passing trade wind showers followed by isolated to scattered afternoon convection will continue though a least Friday. Conditions will gradually improve by Saturday as the low level trough pulls away from the region and a high pressure ridge builds both aloft as well as at the surface inducing an east to northeast low level wind flow and a gradual strengthening of the trade wind cap inversion. |
Long term Sunday through Thursday... a drier and more stable weather pattern is expected by the second half of the weekend through at least the middle of next week as the aformentioned mid to upper-level ridge amplifies overhead, eroding the low-level moisture. In fact, both the GFS and ecmwf models indicate precipitable water values dropping below 1 inch at times during the period, which would be close to 2 standard deviations below normal for this time of the year. As a result, mainly fair weather conditions can be expected across most of the region with very limited shower activity. An increase in the winds from the northeast is expected by the middle of next week as a strong surface high pressure moves off the northeastern coast of the united states into the western atlantic, tightening the pressure gradient somewhat. Aviation PrevailingVFR at local terminals durg prd but vcsh at tjsj tjnr tisx tist tncm tkpk. Bkn-ovc lyrs nr fl030... Fl060... fl080... And shra en route btw pr and northern leeward islands til 17 14z. Shra and low cld lyrs may cause brief MVFR and mtn top obscr ovr E pr as patches of moisture move across the region. Sfc winds light and variable bcmg fm e-se 10-15 kts aft 17 14z with sea breeze variations through 17 22z. Marine Tranquil marine conditions are expected to prevail with seas ranging between 2 and 5 feet and east to southeast winds up to 15 knots. A northerly swell is moving across the atlantic waters and local passages and will continue through Saturday. A high risk of rip currents is in effect for the beaches located across north-central puerto rico and san juan and vicinity through 6 am ast Friday. Preliminary point temps pops Sju 83 71 82 73 30 20 20 40 stt 83 72 83 72 40 40 30 40 Sju watches warnings advisories Pr... High rip current risk from 6 am ast this morning through late tonight for north central-san juan and vicinity. Vi... None. Am... None. Short term... Ram 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 | 43 min | ESE 6 G 9.9 | 78°F | 79°F | 1016.6 hPa | ||
| 41056 | 10 mi | 49 min | ESE 12 G 14 | 78°F | 1016 hPa | |||
| CLBP4 - 9752235 - Culebra, PR | 15 mi | 37 min | 76°F | 81°F | 1017 hPa | |||
| YABP4 - 9754228 - Yabucoa Harbor, PR | 20 mi | 37 min | 71°F | 68°F | ||||
| CHAV3 - 9751639 - Charlotte Amalie, VI | 32 mi | 37 min | 75°F | 1017.2 hPa | ||||
| 41052 - South of St. John, Virgin Islands | 38 mi | 49 min | E 12 G 14 | 78°F | 1015.8 hPa | |||
| LAMV3 | 41 mi | 37 min | 77°F | 79°F | ||||
| 41053 - San Juan, PR | 42 mi | 49 min | ESE 3.9 G 5.8 | 73°F | 1016.7 hPa | |||
| JOXP4 - Jobos Bay Reserve, Puerto Rico | 42 mi | 94 min | Calm | 74°F | 1018 hPa | 65°F | ||
| SJNP4 - 9755371 - San Juan, PR | 42 mi | 43 min | ENE 4.1 G 6 | 73°F | 80°F | 1017.6 hPa | ||
| CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands | 48 mi | 43 min | ESE 2.9 G 6 | 76°F | 80°F | |||
| LTBV3 - 9751401 - Lime Tree Bay, VI | 48 mi | 31 min | SSE 11 G 14 | 78°F | 80°F | 1017.8 hPa |
Wind History for Isabel Segunda, Vieques Island, 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 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 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
Thu -- 12:45 AM AST -0.44 knots Max Ebb
Thu -- 03:07 AM AST Moonset
Thu -- 03:26 AM AST 0.00 knots Slack
Thu -- 06:57 AM AST Sunrise
Thu -- 07:13 AM AST 0.83 knots Max Flood
Thu -- 10:40 AM AST -0.00 knots Slack
Thu -- 02:10 PM AST -0.84 knots Max Ebb
Thu -- 02:47 PM AST Moonrise
Thu -- 06:07 PM AST Sunset
Thu -- 06:09 PM AST 0.00 knots Slack
Thu -- 08:22 PM AST 0.31 knots Max Flood
Thu -- 10:46 PM AST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:45 AM AST -0.44 knots Max Ebb
Thu -- 03:07 AM AST Moonset
Thu -- 03:26 AM AST 0.00 knots Slack
Thu -- 06:57 AM AST Sunrise
Thu -- 07:13 AM AST 0.83 knots Max Flood
Thu -- 10:40 AM AST -0.00 knots Slack
Thu -- 02:10 PM AST -0.84 knots Max Ebb
Thu -- 02:47 PM AST Moonrise
Thu -- 06:07 PM AST Sunset
Thu -- 06:09 PM AST 0.00 knots Slack
Thu -- 08:22 PM AST 0.31 knots Max Flood
Thu -- 10:46 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 |
| -0.4 | -0.4 | -0.3 | -0.1 | 0.2 | 0.5 | 0.7 | 0.8 | 0.8 | 0.6 | 0.3 | -0.1 | -0.5 | -0.7 | -0.8 | -0.8 | -0.6 | -0.3 | -0 | 0.2 | 0.3 | 0.3 | 0.2 | -0 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for (4,6,7,8)
(on/off) Help
Ground Weather Radar Station Puerto Rico,Virgin Islands
(on/off) Help
Ad by Google
|
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. |