Sunday, December10, 2017 L-36.com


Marine Weather and Tides
Tallaboa, 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 6:47AMSunset 5:53PM Sunday December 10, 2017 8:19 PM AST (00:19 UTC) Moonrise 12:15AMMoonset 12:56PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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- 801 Pm Ast Sun Dec 10 2017
Rest of tonight..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers through the night.
Monday..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds.
Monday night..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Tuesday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated showers.
Tuesday night..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated showers.
Wednesday..Northeast winds 5 to 10 knots. Seas 2 feet or less. Dominant period 10 seconds. Isolated showers.
Thursday..East winds 5 to 10 knots. Seas 2 feet or less. Dominant period 10 seconds. Isolated showers.
Friday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
AMZ700 801 Pm Ast Sun Dec 10 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Seas will gradually subside tonight. A surface high pressure across the north central atlantic will maintain moderate easterly trade wind flow across the local waters today. A surface trough will move into the local area, diminishing the local winds.

7 Day Forecast for Marine Location Near Tallaboa, PR
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location: 17.98, -66.76     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 110002
afdsju
area forecast discussion
national weather service san juan pr
802 pm ast Sun dec 10 2017

Update Partly cloudy skies across the forecast area with
isolated showers across portions of southwest puerto rico. Gfs
model brings patches of moisture over the area tomorrow and
Tuesday. This moisture along with easterly trade winds could
cause brief showers across puerto rico and the u.S. Virgin islands
tomorrow and Tuesday. The high rip current risk was allowed to
expire at 6 pm due to improving marine conditions.

Aviation Vfr conditions will prevail for the reminder of the
taf period. Shra and vcts are possible across tjsj, tisx and tist
by 11 12z. Sfc winds will prevail out of the east at 10 - 15 kts
with an occasional gust possible around 11 16z.

Marine Seas will start to subside today, but there is still a
small craft advisory for many of the local waters.

Prev discussion issued 313 pm ast Sun dec 10 2017
short term...

a cold front will be pushing into the windward passage tonight and
Monday and into hispaniola by Wednesday. Wednesday night will
represent the farthest progress that the front will make this week.

An approaching long wave trough leaving florida will push a
weakening ridge over the local area Monday night. The ridge will
stall just east of the area however holding the activity from the
jet and the associated frontal zone well northwest. Moisture will
increase from around 1.1 inch to around 1.4 inches on Wednesday--but
this is still fairly limited.

Long term...

strong surface high pressure across the northeastern atlantic will
promote easterly winds to the local islands, although somewhat
light winds on Wednesday and Thursday with patches of moisture
over the area. Then later in the week, another surface high
pressure moves north of the local area, tightening the pressure
gradient and causing breezy conditions for the upcoming weekend.

Given the patches of moisture expected, there many be some brief
showers in the windward side of the islands. The upper levels do
not appear to cause any instability for thunderstorm development.

Aviation...VFR conditions to continue til 10 22z except for brief
cigs vcnty tkpk and tjmz near -shra and ovr SE pr. Shra ending ovr
pr by 11 00z but chc of shra along NE coast of pr and NRN usvi aft
11 06z. Maximum winds 30-40kt btwn fl400-510 til byd 11 18z.

Marine... Winds are diminishing and seas are expected to also
continue falling. Rip current risk should be below high everywhere
by Monday and small craft advisories come down at 2 pm ast today.

Preliminary point temps pops
Sju 77 85 74 85 30 30 30 30
stt 78 85 78 84 30 30 20 20

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... 99
long term... .99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
42085 - Southeast of Ponce, PR 15 mi79 min E 12 G 14 83°F 82°F1013.2 hPa (+1.1)
AROP4 - 9757809 - Arecibo, PR 35 mi49 min E 4.1 G 6
SJNP4 - 9755371 - San Juan, PR 48 mi49 min 82°F1015.5 hPa
YABP4 - 9754228 - Yabucoa Harbor, PR 49 mi49 min 80°F
41053 - San Juan, PR 49 mi49 min E 12 G 16 80°F 1014.6 hPa

Wind History for Penuelas (Punta Guayanilla), PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from JPS (wind in knots)
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Last 24hr------------------------------CalmCalmCalm--Calm--Calm--NE5
1 day ago------------------------------NE5NE5NE5--NE5----NE5--
2 days ago------------------------------CalmCalmCalm--Calm--Calm----

Tide / Current Tables for Punta Guayanilla, Puerto Rico
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Punta Guayanilla
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Sun -- 12:15 AM AST     Moonrise
Sun -- 02:21 AM AST     0.13 feet Low Tide
Sun -- 03:53 AM AST     Last Quarter
Sun -- 06:47 AM AST     Sunrise
Sun -- 12:55 PM AST     Moonset
Sun -- 01:17 PM AST     0.60 feet High Tide
Sun -- 05:52 PM AST     Sunset
Sun -- 11:50 PM AST     0.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.10.10.20.20.30.40.40.40.50.50.60.60.60.60.60.60.50.50.40.30.20.2

Tide / Current Tables for Guanica, Puerto Rico
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Guanica
Click for Map
Sun -- 12:15 AM AST     Moonrise
Sun -- 02:36 AM AST     0.17 feet Low Tide
Sun -- 03:53 AM AST     Last Quarter
Sun -- 06:48 AM AST     Sunrise
Sun -- 12:54 PM AST     0.56 feet High Tide
Sun -- 12:56 PM AST     Moonset
Sun -- 05:52 PM AST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.20.20.20.20.30.30.40.50.50.50.60.60.60.50.50.50.50.40.40.30.30.3

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 (19,4,5,8)
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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.