Monday, September25, 2017 L-36.com


Marine Weather and Tides
Cataño, 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 6:12AMSunset 6:18PM Monday September 25, 2017 12:16 AM AST (04:16 UTC) Moonrise 10:46AMMoonset 10:21PM Illumination 21% Phase: Waxing Crescent; Moon at 4 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- 958 Pm Ast Sun Sep 24 2017
Rest of tonight..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northwest swell around 4 feet.
Monday..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Northwest swell around 4 feet. Numerous Thunderstorms through the day.
Monday night..Southeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northwest swell 4 to 5 feet. Numerous Thunderstorms through the night.
Tuesday..East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northwest swell 4 to 5 feet. Numerous Thunderstorms through the day.
Tuesday night..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northwest swell 4 to 5 feet. Isolated Thunderstorms through the night.
Wednesday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northwest swell around 4 feet. Isolated Thunderstorms.
Thursday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. North swell 4 to 5 feet. Scattered Thunderstorms.
Friday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. North swell 4 to 5 feet. Widespread Thunderstorms.
AMZ700 958 Pm Ast Sun Sep 24 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Southeast winds will remain under 15 knots through Monday with slightly stronger winds Monday night behind a tropical wave. The tropical wave is expected to move through on Monday, bringing an enhancement of showers and Thunderstorms to the region. By late Tuesday, more seasonable easterly winds will push into the coastal waters.

7 Day Forecast for Marine Location Near Cataño, PR
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location: 18.46, -66.12     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 241850
afdsju
area forecast discussion
national weather service san juan pr
issued by national weather service miami fl
250 pm ast Sun sep 24 2017

Corrected for issuing office...

Short term
Deep tropical moisture remains in place with a persistent
southeast flow which allows for precipitable water values to be in
excess of 2 inches across the islands. All of this coupled with an
incoming easterly wave will bring a chance for rain by later
tonight for the usvi and by tomorrow for puerto rico.

Heat index values will be near 100 for the next few days, bringing
hot and sticky weather to the area. This will make recovery
efforts difficult and overall living unpleasant as electricity
remains out across the island.

Long term
Relatively drier conditions are expected by late Tuesday as
precipitable water values drop below 2 inches when the upper level flow
becomes more easterly. This will bring a more seasonable airmass to
the islands.

Aviation
Sufficiently moist air mass remains in place over the region to
allow for isoalted showers and thunderstorms, particularly over the
western third of puerto rico.VFR conditions prevailing but brief
restrictions possible in the vicinity of convection. Coverage of
showers and thunderstorms may increase a bit Monday as a weak
tropical wave moves east to west over the region.

Marine
Southeast winds will continue through Monday night. Shower
activity will be isolated to scattered today, but increasing
showers and thunderstorms will move in from the east Sunday night
into Monday. More seasonable easterly winds will return Tuesday.

Preliminary point temps pops
Sju 80 86 80 86 0 0 70 40
stt 82 83 82 83 30 60 90 80

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Md
marine... ... .Md
aviation... ..Ks


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SJNP4 - 9755371 - San Juan, PR 0 mi65 min 82°F 82°F1015.1 hPa
41053 - San Juan, PR 1 mi77 min SSE 5.8 G 7.8 83°F 81°F4 ft1014.3 hPa (+0.0)
YABP4 - 9754228 - Yabucoa Harbor, PR 32 mi59 min 84°F
41056 38 mi77 min ESE 9.7 G 12 83°F 2 ft1014.8 hPa (+0.0)
CLBP4 - 9752235 - Culebra, PR 45 mi59 min 81°F 84°F1015.2 hPa
42085 - Southeast of Ponce, PR 47 mi77 min ENE 12 G 14 84°F 84°F1014 hPa (+0.3)

Wind History for San Juan, PR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR7 mi81 minN 010.00 miFair82°F75°F79%1014.2 hPa

Wind History from JSJ (wind in knots)
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Last 24hrE4E4E6SE3E5SE3CalmNE33E7SE9SE10
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S11SE8S8S7S5--SE5CalmSE3
1 day agoSE6SE5SE4SE6SE7SE4S65--------------------SE65SE6SE4E6E4
2 days ago----------------------SE11
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Tide / Current Tables for San Juan, La Puntilla, San Juan Bay, Puerto Rico
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San Juan
Click for Map
Mon -- 05:54 AM AST     0.32 feet Low Tide
Mon -- 06:13 AM AST     Sunrise
Mon -- 10:46 AM AST     Moonrise
Mon -- 12:53 PM AST     1.70 feet High Tide
Mon -- 06:17 PM AST     Sunset
Mon -- 07:25 PM AST     0.67 feet Low Tide
Mon -- 10:21 PM AST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.110.80.50.40.30.40.60.91.21.51.61.71.61.41.210.80.70.70.80.91

Tide / Current Tables for Boca De Cangrejos, Isla Verde, San Juan, Puerto Rico
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Boca De Cangrejos
Click for Map
Mon -- 12:08 AM AST     0.95 feet High Tide
Mon -- 06:13 AM AST     Sunrise
Mon -- 06:18 AM AST     0.09 feet Low Tide
Mon -- 10:45 AM AST     Moonrise
Mon -- 01:14 PM AST     1.29 feet High Tide
Mon -- 06:17 PM AST     Sunset
Mon -- 07:36 PM AST     0.43 feet Low Tide
Mon -- 10:20 PM AST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.80.60.40.20.10.10.30.50.811.21.31.31.10.90.70.50.40.40.50.60.8

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 (0,6,7,8)
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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.