Saturday, February24, 2018 L-36.com


Marine Weather and Tides
El Combate, 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 6:54AMSunset 6:39PM Saturday February 24, 2018 11:53 AM AST (15:53 UTC) Moonrise 1:24PMMoonset 1:47AM Illumination 69% Phase: Waxing Gibbous; Moon at 9 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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AMZ741 Mona Passage Southward To 17n- 1003 Am Ast Sat Feb 24 2018
.small craft advisory in effect through Sunday morning...
Rest of today..East winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 10 seconds. Northeast swell 4 to 8 feet. Isolated showers.
Tonight..Northeast winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 8 seconds. Northeast swell 4 to 6 feet. Isolated showers through the night.
Sunday..Northeast winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Isolated showers in the morning.
Sunday night..Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Monday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Tuesday..Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Isolated showers.
Wednesday..Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northeast swell 4 to 6 feet. Scattered showers.
AMZ700 1003 Am Ast Sat Feb 24 2018
Synopsis for puerto rico and the uS. Virgin islands waters... Moderate to fresh east northeast winds generated by a surface high pressure over the western atlantic, will maintain hazardous seas across the regional waters and local passages through the weekend. A long dominant period northerly swell is forecast to arrive across the local atlantic waters and also increase hazardous sea conditions by the middle of next week.

7 Day Forecast for Marine Location Near El Combate, PR
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location: 18.09, -67.94     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 241514
afdsju
area forecast discussion
national weather service san juan pr
1114 am ast Sat feb 24 2018

Update Mostly cloud skies across much of the region became
variably cloudy to partly cloudy by late morning, as shower activity
and cloud cover moved off and gradually diminished across the islands
and coastal waters. Periods of locally heavy rainfall was however
experienced across parts of the northern half of pr and adjacent
islands as well as over the northern usvi. This activity lead to ponding
of water on roadways and periods of brief gusty winds to near 30 mph
in some areas. Expect the cloudiness and shower activity to again develop
and spread west and southwest across parts of central and western puerto
rico during the afternoon as previously mentioned. A retrogressing tutt
axis lifting west northwest across the region is still in a position
to provide sufficient ventilation to support a slight chance for an
isolated thunderstorm over the interior and southwest pr, but do not
expect widespread tstorm activity today due to strong shear aloft.

Rainfall however may be locally heavy in isolated areas with brief
gusty winds.

Aviation update Sct-bkn cld lyrs nr fl025..Fl050... Fl090 durg
prd with passing shra at tjsj tist tisx tjbq and en route btw pr
and NRN leeward islands til 24 16... W slight chance of isld tsra
btwn 24 18z-22z at tjmz and the vcty of tjps. Ene sfc winds 15-20
knots, with higher gusts accompanying shra isold tsra til 24 22z.

L lvl winds ene btw 20-30 kts blo fl200... Bcmg fm SW in incr W ht
abv with MAX wnd btw 80-100 kts NE of islands btw fl300-fl350.

Marine update Hazardous conditions will continue across the regional
waters and passages although seas will slowly subside today through
Sunday. Moderate to fresh east northeast winds will maintain choppy
wind driven seas. In addition, a northerly swell is still forecast
to arrive across the local atlantic by early next week.

Prev discussion issued 509 am ast Sat feb 24 2018
synopsis... At the surface, high pressure system will continue to
dominates the local region through early next week. At upper
level, a deep upper level trough (tutt) will linger west of the
area through Tuesday. This will result in favorable conditions
for the development of showers and even thunderstorms throughout
the weekend.

Short term... Today through Monday... Numerous showers moved from
the atlantic waters across st thomas st john, as well as across
the northern and eastern portions of puerto rico overnight. Shower
activity is expected to continue across these areas through the
morning hours. Brief periods of heavy showers are possible with
this activity. As a result some areas may observe ponding of water
along roads and poorly drained.

A mid to upper level trough with a subtropical jet over near the
islands will support afternoon convection mainly across the interior
and southwest sections of puerto rico. The GFS gdi is showing the
potential for thunderstorm formation Saturday and Sunday. For that
reason, thunderstorms were added to the forecast package for
Saturday and Sunday afternoon. The islands will remain in the
divergent area of this upper level feature through at least early
next week. Therefore, expect a gradual increase in shower activity
with the possibility of isolated thunderstorms across the forecast
area.

Long term... Tuesday through Sunday... Mid to upper level ridge is
forecast to build across the western atlantic by mid next week.

Therefore, very stable atmospheric conditions are forecast to
prevail across the region during the long term period. Very dry
weather conditions with limited shower activity is anticipated.

Aviation... Shra with isolated +shra are expected to affect
tjsj tist tjbq through the morning hours. Vcsh are expected at the
leeward terminals too. Shra with possible isolated tsra are expected
btwn 24 16z-22z at tjmz and the vcty of tjps. Ene winds at 10 kt
increasing at 15-20 knots with higher gusts aft 24 13z.

Marine... Local buoys were indicating seas between 6-8 feet around
10 seconds period overnight and early this morning. Seas will
continue to slowly decrease through the weekend. However, rough
breaking wave action will continue to result in life threatening
rip currents along the northern exposed beaches of pr and portions
of the smaller islands through the weekend. Due to breaking aves
up to 10 feet, decided to extend the high surf advisory until 6 pm
ast tonight.

Preliminary point temps pops
Sju 81 72 81 72 60 60 60 70
stt 82 71 82 72 60 60 60 70

Sju watches warnings advisories
Pr... High rip current risk through late tonight for culebra-mayaguez
and vicinity-north central-northeast-northwest-san juan and
vicinity-vieques-western interior.

High surf advisory until 6 pm ast this evening for culebra-
mayaguez and vicinity-north central-northeast-northwest-san
juan and vicinity-western interior.

Vi... High rip current risk through late tonight for st croix.

High surf advisory until 6 pm ast this evening for st croix-
st.Thomas... St. John... And adjacent islands.

High rip current risk until 6 pm ast this evening for
st.Thomas... St. John... And adjacent islands.

Small craft advisory from 6 pm this evening to 8 am ast Sunday
for st.Thomas... St. John... And adjacent islands.

Am... High surf advisory until 6 pm ast this evening 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 until 8 am ast Sunday for caribbean waters
of puerto rico from 10 nm to 17n-coastal waters of northern
puerto rico out 10 nm-coastal waters of northern usvi and
culebra out 10 nm-coastal waters of southern usvi vieques
and eastern puerto rico out 10 nm-mona passage southward to
17n.

High rip current risk until 6 pm ast this evening 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 until 2 pm ast Sunday for anegada passage
southward to 17n-atlantic waters of puerto rico and usvi
from 10 nm to 19.5n.

Small craft advisory until 2 am ast Sunday for coastal waters of
northwestern puerto rico out 10 nm.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MISP4 - 9759938 - Mona Island, PR 0 mi54 min 78°F 78°F1019.5 hPa (+0.9)
41115 - Rincon, Puerto Rico (181) 40 mi84 min 79°F5 ft

Wind History for Mayaguez, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

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Tide / Current Tables for Mona Island, Puerto Rico
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Mona Island
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Sat -- 01:46 AM AST     Moonset
Sat -- 06:53 AM AST     Sunrise
Sat -- 08:35 AM AST     0.89 feet High Tide
Sat -- 01:23 PM AST     Moonrise
Sat -- 06:36 PM AST     Sunset
Sat -- 07:06 PM AST     -0.06 feet Low Tide
Sat -- 09:51 PM AST     0.06 feet High Tide
Sat -- 11:14 PM AST     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.30.50.70.70.80.80.80.90.90.80.60.50.40.40.30.20.1-0-0.1-000.10

Tide / Current Tables for Puerto Real, Puerto Rico
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Puerto Real
Click for Map
Sat -- 01:43 AM AST     Moonset
Sat -- 03:27 AM AST     1.06 feet High Tide
Sat -- 06:50 AM AST     Sunrise
Sat -- 09:59 AM AST     0.29 feet Low Tide
Sat -- 01:20 PM AST     Moonrise
Sat -- 02:39 PM AST     0.62 feet High Tide
Sat -- 06:33 PM AST     Sunset
Sat -- 09:18 PM AST     -0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.70.9110.90.80.60.40.30.30.30.40.50.60.60.60.40.20-0.1-0.2-0.2-0

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 (10,2,3,4)
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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.