Monday, July24, 2017 L-36.com


Marine Weather and Tides
Dorado, 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 5:59AMSunset 7:04PM Monday July 24, 2017 4:52 PM AST (20:52 UTC) Moonrise 7:09AMMoonset 8:16PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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AMZ712 Coastal Waters Of Northern Puerto Rico Out 10 Nm- 329 Pm Ast Mon Jul 24 2017
.small craft should exercise caution...
Tonight..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers.
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.
Wednesday..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 day. Isolated Thunderstorms in the afternoon.
Wednesday night..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Thursday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated showers.
Friday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated Thunderstorms. Scattered showers.
Saturday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers.
AMZ700 329 Pm Ast Mon Jul 24 2017
Synopsis for puerto rico and the uS. Virgin islands waters... A broad surface high pressure across the central atlantic will continue to promote moderate to fresh easterly winds through midweek. A tropical wave will pass through on Wednesday. Winds are expected to become more east southeasterly by the end of the workweek.

7 Day Forecast for Marine Location Near Dorado, PR
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location: 18.47, -66.29     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 242035
afdsju
area forecast discussion
national weather service san juan pr
435 pm ast Mon jul 24 2017

Synopsis Afternoon heating produced a few thunderstorms with
heavy rain in western puerto rico. Moisture will increase later
tonight to spread showers across the area from the east northeast
early Tuesday morning and during the day. On Wednesday a tropical
wave will cross through to increase the coverage and amount of
rain. Scattered showers typical for the time of year will continue
through early next week as areas of moisture move through, from
the east southeast.

Short term Tonight through Thursday
high pressure at the surface just southeast of the azores will
shift to within 1500 miles northeast of the area to continue the
easterly trade winds across the area. A tropical wave will move
through the area Wednesday morning to exit to the west on
Wednesday night. Local flow will then become east southeast.

Tonight, moisture increases from the east northeast having
wrapped around high pressure north northeast of the area at 700 mb
and from the east at lower levels. The tropical wave on Wednesday will
enhance this interaction with better showers and thunderstorms in
the area. Increase shower activity will begin later tonight and
then continue in the southeast flow through Thursday. A weak
trough will extend eastward across the area from a tutt to our
northeast, but divergence aloft is limited to Tuesday evening and
Wednesday afternoon and will have a limited effect. Thunderstorms
that do develop Tuesday and Wednesday afternoons will likely
produce areas urban and small stream flooding in portions of
western and northwestern puerto rico from heavy rain. Thursday
will have showers and thunderstorms also in the same areas but
flooding will be more localized.

Long term Friday through Monday
after a dry slot on Thursday night another tropical wave moves
across the area on Friday, then alternating bands of moist and
drier air move through as disturbances from the east travel
through. The tutt low will be northeast of the area on Friday with
an upper level trough hanging over or just east of the lesser
antilles off of the tutt. That trough will break off and travel
through the caribbean south of the area Sunday and Sunday night,
but will have little effect until Monday when a weak southerly jet
crosses through and winds at 700 mb increase to 30 knots
according to the GFS solution. No significant features are
expected tonight through early next week in the local area.

Aviation Vfr conds expected through 25 16z. Saharan dust is
present so there is haze but visibilities will be p6sm. Winds
will continue to be from the east to ese for the rest of today
with sea breeze variations at about 15kt with occasional gusts.

Vcsh possible at tjmz between 24 18z and 24 22z. Winds will
lighten up after 24 23z to about 10kt with mostly dry conditions.

Some shra tsra possible around tjmz tomorrow after 25 16z.

Marine Winds are keeping precautionary statements in the the
local waters as seas remain 5 feet or less. At this time small
craft advisories are not expected through the first of august.

Rip currents will remain at low to moderate risk. Thunderstorms
may become strong over the local waters during the wave passages
Wednesday and Friday to generate locally higher seas and gusty
winds.

Preliminary point temps pops
Sju 80 89 79 88 60 30 30 30
stt 80 90 79 88 60 50 40 30

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Ds
long term... .Ws


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SJNP4 - 9755371 - San Juan, PR 9 mi52 min E 15 G 22 85°F 86°F1017.1 hPa (-1.2)
41053 - San Juan, PR 10 mi52 min ENE 16 G 19 84°F 84°F3 ft1016.4 hPa (-1.2)
AROP4 - 9757809 - Arecibo, PR 22 mi52 min ENE 14 G 21
JOXP4 - Jobos Bay Reserve, Puerto Rico 36 mi67 min E 7 90°F 1017 hPa74°F
FRDP4 - 9753216 - Fajardo, PR 36 mi52 min ENE 12 G 14 85°F 78°F
YABP4 - 9754228 - Yabucoa Harbor, PR 38 mi52 min ENE 7 G 12 89°F
42085 - Southeast of Ponce, PR 44 mi52 min E 18 G 21 86°F 85°F1015.2 hPa (-1.7)
41056 46 mi52 min E 12 G 14 85°F 3 ft1017 hPa (-1.5)
MGZP4 - 9759394 - Mayaguez, PR 49 mi52 min SE 5.1 G 7 80°F 1017.1 hPa (-0.0)

Wind History for San Juan, PR
(wind in knots)    EDIT      (on/off)   Help
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NE4
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR16 mi56 minENE 179.00 miPartly Cloudy88°F77°F70%1017.1 hPa

Wind History from JSJ (wind in knots)
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Last 24hrNE16E13
G22
E9E7E8E8E6E8E6E8E9SE5SE4E6E6E9E14E10NE17NE16
G23
E18E17
G22
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G24
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1 day agoE10E10E9E8E8SE4CalmSE3Calm5SE5SE3CalmSE3SE3E4E10E12E14
G19
E13NE14NE16NE15E15
2 days agoE15
G21
E15E10E11E9E10E10E7E5CalmE4E4CalmCalmE6E11NE8NE12NE12E11NE12NE13E16E11

Tide / Current Tables for San Juan, Puerto Rico
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San Juan
Click for Map
Mon -- 04:05 AM AST     0.34 feet Low Tide
Mon -- 05:59 AM AST     Sunrise
Mon -- 07:08 AM AST     Moonrise
Mon -- 09:12 AM AST     1.14 feet High Tide
Mon -- 03:22 PM AST     -0.23 feet Low Tide
Mon -- 07:01 PM AST     Sunset
Mon -- 08:15 PM AST     Moonset
Mon -- 10:24 PM AST     1.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.410.70.40.30.40.60.811.11.10.90.60.2-0.1-0.2-0.200.40.91.31.71.91.9

Tide / Current Tables for San Juan, La Puntilla, San Juan Bay, Puerto Rico
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San Juan
Click for Map
Mon -- 04:05 AM AST     0.33 feet Low Tide
Mon -- 05:59 AM AST     Sunrise
Mon -- 07:08 AM AST     Moonrise
Mon -- 09:12 AM AST     1.12 feet High Tide
Mon -- 03:22 PM AST     -0.24 feet Low Tide
Mon -- 07:01 PM AST     Sunset
Mon -- 08:15 PM AST     Moonset
Mon -- 10:24 PM AST     1.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.410.70.40.30.40.60.811.11.10.90.60.2-0.1-0.2-0.200.40.91.31.71.91.8

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 (16,3,4,5)
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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.