Monday, June26, 2017 L-36.com


Marine Weather and Tides
Emajagua, PR

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:48AMSunset 7:03PM Monday June 26, 2017 11:42 PM AST (03:42 UTC) Moonrise 8:25AMMoonset 9:37PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 905 Pm Ast Mon Jun 26 2017
.small craft should exercise caution...
Rest of tonight..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers through the night.
Tuesday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Tuesday 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 through the night.
Wednesday..East winds 15 to 20 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Wednesday night..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Thursday..East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Saturday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated showers.
AMZ700 905 Pm Ast Mon Jun 26 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Surface high pressure spread across the central atlantic will maintain a moderate to locally fresh easterly winds across the regional waters through the end of the week. The next tropical wave is forecast to enter and move across the eastern caribbean waters Thursday through Friday.

7 Day Forecast for Marine Location Near Emajagua, PR
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location: 18, -65.88     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 270041
afdsju
area forecast discussion
national weather service san juan pr
841 pm ast Mon jun 26 2017

Update The lingering moisture left behind the tropical wave,
now south of hispaniola in combination with diurnal heating and
local effects produced scattered showers during the afternoon
hours across northwestern sections of puerto rico. However, this
activity dissipates rapidly after sunset. Not significant
precipitation was observed elsewhere over land areas.

The tropical wave across the caribbean waters, south of
hispaniola will continue to move westward well away of the region
tonight and Tuesday. For the overnight hours and Tuesday morning,
an overall dry and stable airmass with saharan dust will prevail
across the region. As a result, mostly fair weather and hazy skies
will continue across the region with limited shower activity
expected. However, isolated to scattered showers should be focused
mainly over the west interior sections of puerto rico tomorrow
afternoon. Similar conditions are expected for Wednesday. A tropical
wave is expected to reach the eastern caribbean on Wednesday
passing mostly south of the local islands Thursday and Friday. An
increase in cloudiness, showers and possible thunderstorms are
expected in association with this wave.

Aviation MostlyVFR conditions will prevail across the local
flying area overnight. Brief MVFR conditions are possible over w
pr and vcty tjmz and tjbq til from 27 22z in shra and possible
isolated tsra. Haze alqds across local flying area due to
suspended saharan dust spread across the region thru at least
Wednesday. Low level e-se winds up to 10 knots expected tonight,
increasing to 15-20 knots after 27 14z.

Marine Mariners can expect seas of 3-5 ft and winds up to 20
kts across the coastal waters.

Prev discussion issued 451 pm ast Mon jun 26 2017
synopsis... Overall dry and stable air mass prevailed across the
region today, as the tropical wave that affected the forecast area
overnight and early this morning, quickly exited the region and
entered the central caribbean during the afternoon. A saharan air
layer with extensive area of suspended saharan dust particulates
quickly followed and will linger across the region through at least
Tuesday creating somewhat hazy conditions over the land areas.

Short term... Rest of today through Wednesday...

diurnally induced shower activity will diminish by sunset leaving
partly cloudy to mostly clear skies. For the overnight hours and
on Tuesday, a overall dry and stable airmass with saharan dust
will linger across the region. As a result, mostly fair weather
skies but somewhat hazy conditions, can be expected with limited
shower activity. Isolated to scattered showers should be focused
mainly over the west interior sections of puerto rico. Similar
conditions expected for Wednesday, however a quick surge of
moisture in the easterly trade winds will bring early morning
showers mainly to the windward side of the islands. This will be
followed by locally induced afternoon showers mainly over the west
and southwest sections of pr as winds are to become more east
northeast.

Long term... Thursday through Tuesday...

next tropical wave easterly disturbance is still forecast to enter
and move across the eastern caribbean Thursday through Friday where
it is then expected to merge with a broad surface trough forecast to
develop and spread across the central and eastern caribbean. This overall
pattern should increase low level moisture and layered
precipitable water content across the region during the latter
part of the work week and into the upcoming weekend. Recent model
guidance continued to suggest increasing pwat values to near two
inches as moisture is expected to converge and pool across the
east and northeast caribbean. In addition the proximity of the
upper level tutt should also bring favorable conditions aloft to
allow for more frequent early morning showers and afternoon
convection across the islands and coastal waters through at least
Saturday. A gradual decrease in moisture and improving conditions
aloft is so far forecast for Sunday and into the early part of the
following week.

Aviation...VFR conditions will prevail across all TAF sites durg
prd. Brief MVFR conds psbl ovr W pr and vcty tjmz and tjbq til from
26 22z in shra isold tsra. Haze alqds across local flying area due
to suspended saharan dust spread across the region thru Tuesday.

However vsby p6sm expected durg prd at all terminals. Low level winds
fm e-se 15-20 kts blo fl200. Except for local sea breeze variations... Sfc
wnd e-se around 15 kts with ocnl higher gusts. No sig operational
wx impacts attm.

Marine... Mariners can expect seas of 3-5 ft and winds of 10-20 kts
across most waters. Locally fresh winds may create choppy seas along
the coastal waters north and south puerto rico between 15z- 21z
each day.

Preliminary point temps pops
Sju 79 90 78 89 10 20 30 30
stt 79 90 78 90 20 20 30 30

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Jf
long term... .Ram


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YABP4 - 9754228 - Yabucoa Harbor, PR 5 mi43 min ENE 6 G 9.9 83°F
JOXP4 - Jobos Bay Reserve, Puerto Rico 18 mi58 min NE 1 80°F 1018 hPa73°F
ESPP4 - 9752695 - Esperanza, PR 23 mi43 min ENE 1 G 2.9 79°F 84°F1017.3 hPa (+1.1)
VQSP4 - 9752619 - Isabel Segunda, Vieques, PR 25 mi43 min E 4.1 G 6 82°F
FRDP4 - 9753216 - Fajardo, PR 27 mi43 min ENE 8.9 G 11 82°F 76°F
41056 29 mi43 min ENE 9.7 G 12 82°F 83°F3 ft1017.3 hPa (+1.1)
SJNP4 - 9755371 - San Juan, PR 34 mi43 min E 7 G 9.9 82°F 84°F1017.9 hPa (+1.3)
42085 - Southeast of Ponce, PR 35 mi43 min ENE 14 G 18 85°F 84°F4 ft1016.2 hPa (+1.5)
41053 - San Juan, PR 35 mi43 min E 12 G 14 83°F 82°F3 ft1017 hPa (+1.1)
CLBP4 - 9752235 - Culebra, PR 37 mi43 min 81°F 83°F1017.5 hPa (+1.3)

Wind History for Yabucoa Harbor, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR30 mi1.8 hrsE 510.00 miA Few Clouds82°F75°F79%1017.6 hPa

Wind History from JSJ (wind in knots)
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Last 24hrCalmSW3CalmCalmS3SE5E7E8E11E14E16E16
G21
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E17NE18E16NE17E16E13E12E11E8E5E7
1 day agoE4E5CalmCalmCalmE8E6E5E9E11E14E16
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2 days agoE5SE4SE4E4SE4CalmE5E5E12E8E14
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Tide / Current Tables for Puerto Maunabo, Puerto Rico
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Puerto Maunabo
Click for Map
Mon -- 05:50 AM AST     Sunrise
Mon -- 08:25 AM AST     Moonrise
Mon -- 02:46 PM AST     -0.19 feet Low Tide
Mon -- 07:02 PM AST     Sunset
Mon -- 09:36 PM AST     Moonset
Mon -- 11:31 PM AST     0.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.70.70.60.50.50.40.30.20.10-0-0.1-0.1-0.2-0.2-0.1-0.10.10.30.40.60.70.7

Tide / Current Tables for Vieques Passage, Puerto Rico Current
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Vieques Passage
Click for Map
Mon -- 12:09 AM AST     0.91 knots Max Flood
Mon -- 03:18 AM AST     -0.00 knots Slack
Mon -- 05:48 AM AST     Sunrise
Mon -- 06:49 AM AST     -1.10 knots Max Ebb
Mon -- 08:24 AM AST     Moonrise
Mon -- 10:29 AM AST     0.00 knots Slack
Mon -- 01:16 PM AST     0.69 knots Max Flood
Mon -- 04:18 PM AST     -0.00 knots Slack
Mon -- 07:02 PM AST     Sunset
Mon -- 07:02 PM AST     -0.57 knots Max Ebb
Mon -- 09:35 PM AST     Moonset
Mon -- 09:43 PM AST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.80.60.1-0.3-0.7-1-1.1-1-0.6-0.20.20.50.70.60.40.1-0.2-0.5-0.6-0.5-0.20.10.5

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
carb_satellite

GOES Local Image of Puerto Rico    EDIT
Geos

Wind Forecast for (23,6,7,8)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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weather_mapweather_map weather_map

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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.