Friday, February22, 2019 L-36.com


Marine Weather and Tides
Vieques, PR

Version 3.4
What's New / NOTES
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 6:44AMSunset 6:27PM Friday February 22, 2019 8:04 AM AST (12:04 UTC) Moonrise 9:44PMMoonset 9:11AM Illumination 90% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 359 Am Ast Fri Feb 22 2019
.small craft should exercise caution...
.small craft advisory in effect from 8 am ast this morning through Sunday morning...
Today..East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Scattered showers.
Tonight..East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 10 seconds. East swell 4 to 5 feet after midnight. Isolated showers.
Saturday..East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Isolated showers.
Saturday night..Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 10 seconds. Northeast swell 4 to 5 feet. Isolated showers.
Sunday..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Monday..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. East swell around 4 feet. Scattered 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.
AMZ700 359 Am Ast Fri Feb 22 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure will remain north of the region until it weakens on Saturday. In addition, another strong surface high pressure will move over the western atlantic and north of the area late this weekend into early next week. These features will promote a fresh to strong easterly wind flow across the regional waters, Thus generating hazardous marine conditions over the next several days.


7 Day Forecast for Marine Location Near Vieques, PR
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location: 18.15, -65.43     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 220823
afdsju
area forecast discussion
national weather service san juan pr
423 am ast Fri feb 22 2019

Synopsis Mid to upper-level ridge is expected to hold across
the area through at least Monday. This will continue to result in
a mostly stable weather pattern, however, small patches of low-
level moisture may result in some trade wind showers affecting the
area from time to time. Surface high pressure north of the area
will continue to produce breezy conditions through the upcoming
weekend. The ridge aloft is expected to weaken somewhat by the
middle of next week and may allow for better moisture to move
across the area and result in better shower activity.

Short term Today through Sunday...

a surface high pressure north of the region will prevail through
at least Monday. This will continue to generate windy conditions
with winds expected to range between 15 and 25 mph with higher
gusts. Highest winds expected from the mid morning through the
evening hours.

Pulses of low level moisture will continue to move across the local
area from time to time. This will generate passing showers, mostly
affecting the local waters and the eastern areas of puerto rico.

These showers will be wind driven and therefore, be of short
duration with minor accumulations expected.

Long term Monday through Saturday...

the ridge aloft will continue to maintain fair weather conditions
on Monday. By Tuesday and Wednesday, model guidance continues to
indicate that the ridge aloft will begin to weaken somewhat as a
deep polar trough moves across the western atlantic. This would
cause a weakening of the trade wind cap and allow for better
moisture pooling across the region through the end of the work
week. If current model guidance continues to hold on its current
solution, the potential exists for better shower activity to
affect the local area starting on Tuesday and continuing through
the end of the work week.

Aviation MainlyVFR conditions are expected across the terminals
throughout the period. Vcsh -shra are possible across tist tisx tjsj
terminals through 22 09z-14z, which may result in brief MVFR
conditions. A few -shra are also possible across tjmz between 22 16z-
22z. Winds will continue from the e-ene around 10 kts through
22 12z, increasing to 15-20 kts with higher gusts afterwards
through 22 22z.

Marine Choppy and hazardous wind driven seas between 5 and 8
feet are expected across the regional waters through the upcoming
weekend. As a result, small craft advisories are in effect for
the majority of the regional waters. A high risk of rip currents
is in effect for the northern beaches of pr, culebra, and cramer
park beach in saint croix for today. The rest of the local beaches
have a moderate risk of rip currents. A high risk of rip currents
is expected for the northern beaches of saint thomas starting
this evening.

Fire weather Recent surface observations indicate that the
vegetation across the southern coastal plains of puerto rico
continue to remain very dry with kdbi values near 600 in cabo
rojo and over 700 in camp santiago. Winds today will continue to
be moderate to strong with speeds ranging between 15 and 25 mph
with higher gusts. A band of low-level moisture, associated with
the remnants of a frontal boundary, will move across the area
during the day and will provide more cloudiness. Therefore,
relative humidity values are expected to be higher than they were
on Thursday but could still drop into the mid to upper 40s for a
few hours later this morning into this afternoon, maintaining the
fire weather risk elevated. Given this scenario, a fire danger
statement (rfdsju) has been issued.

Preliminary point temps pops
Sju 85 74 84 73 40 40 30 20
stt 85 73 84 72 40 20 20 20

Sju watches warnings advisories
Pr... High rip current risk through late Saturday night for culebra-
north central-northeast-san juan and vicinity-
high rip current risk through late Saturday night for northwest.

High rip current risk from Saturday morning through late
Saturday night for mayaguez and vicinity.

Vi... High rip current risk through late Saturday night for st croix.

High rip current risk from this evening through late Saturday
night for st.Thomas... St. John... And adjacent islands.

Am... Small craft advisory until 8 pm ast Sunday for anegada passage
southward to 17n-atlantic waters of puerto rico and usvi
from 10 nm to 19.5n-caribbean waters of puerto rico from 10
nm to 17n-coastal waters of northern puerto rico out 10 nm-
mona passage southward to 17n.

Small craft advisory from 8 am this morning to 8 am ast Sunday
for coastal waters of northern usvi and culebra out 10 nm-
coastal waters of southern usvi vieques and eastern puerto
rico out 10 nm.

Small craft advisory from 2 pm this afternoon to 8 am ast Sunday
for coastal waters of northwestern puerto rico out 10 nm.

Short term... Em
long term... .Gl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ESPP4 - 9752695 - Esperanza, PR 4 mi52 min ENE 6 G 11 74°F 78°F1019.4 hPa
41056 8 mi64 min E 14 G 18 78°F 79°F1018.6 hPa (+1.3)
CLBP4 - 9752235 - Culebra, PR 12 mi52 min 77°F 80°F1019.8 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 22 mi46 min 76°F 71°F
CHAV3 - 9751639 - Charlotte Amalie, VI 30 mi52 min 77°F 1019.8 hPa
41052 - South of St. John, Virgin Islands 36 mi64 min ENE 18 G 21 79°F 79°F5 ft1018.1 hPa (+1.3)
LAMV3 39 mi46 min 78°F 78°F
41053 - San Juan, PR 42 mi64 min E 18 G 23 78°F 79°F7 ft1018.6 hPa (+1.3)
SJNP4 - 9755371 - San Juan, PR 42 mi52 min E 16 G 22 78°F 78°F1019.7 hPa
JOXP4 - Jobos Bay Reserve, Puerto Rico 44 mi79 min NE 4.1 73°F 1020 hPa70°F
CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands 48 mi52 min ENE 6 G 13 78°F 78°F
LTBV3 - 9751401 - Lime Tree Bay, VI 48 mi46 min E 5.1 G 9.9 78°F 79°F1020.3 hPa

Wind History for Isabel Segunda, Vieques Island, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR36 mi68 minE 1410.00 miPartly Cloudy77°F69°F79%1019.6 hPa

Wind History from JSJ (wind in knots)
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Last 24hrSE54E10E16E13E15E16
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E11E7E6E6E6E6E6SE4E6E12E14E13E12E14
1 day agoE13E12E13E15NE16E10E12
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E5E14E9E11E12E13E10E7E11E9E8S3SE4SE4
2 days agoCalmE9E14E12NE15E12NE15E12E18
G22
E13E13E12E12E8E7E7SE4E12E10E9E10E11E5SE4

Tide / Current Tables for Punta Mulas, Isla de Vieques, Puerto Rico
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Punta Mulas
Click for Map
Fri -- 04:45 AM AST     -0.11 feet Low Tide
Fri -- 06:45 AM AST     Sunrise
Fri -- 09:10 AM AST     Moonset
Fri -- 11:12 AM AST     1.05 feet High Tide
Fri -- 05:22 PM AST     -0.01 feet Low Tide
Fri -- 06:25 PM AST     Sunset
Fri -- 09:44 PM AST     Moonrise
Fri -- 11:36 PM AST     1.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.60.30.1-0.1-0.1-00.20.50.811.110.80.60.30.1-000.10.40.60.81

Tide / Current Tables for Vieques Passage, Puerto Rico Current (2)
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Vieques Passage
Click for Map
Fri -- 01:07 AM AST     0.86 knots Max Flood
Fri -- 04:16 AM AST     -0.00 knots Slack
Fri -- 06:45 AM AST     Sunrise
Fri -- 07:21 AM AST     -0.83 knots Max Ebb
Fri -- 09:11 AM AST     Moonset
Fri -- 10:31 AM AST     0.00 knots Slack
Fri -- 01:26 PM AST     0.73 knots Max Flood
Fri -- 04:20 PM AST     -0.00 knots Slack
Fri -- 06:26 PM AST     Sunset
Fri -- 07:35 PM AST     -0.88 knots Max Ebb
Fri -- 09:44 PM AST     Moonrise
Fri -- 10:45 PM AST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.90.80.50.1-0.3-0.6-0.8-0.8-0.6-0.20.20.50.70.70.50.1-0.3-0.6-0.8-0.9-0.7-0.30.1

Weather Map and Satellite Images
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wmap_A
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.
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Wind Forecast for (7,2,3,4)
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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.