Thursday, September19, 2019 L-36.com


Marine Weather and Tides
Isabela, PR

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:15AMSunset 6:28PM Thursday September 19, 2019 3:39 PM AST (19:39 UTC) Moonrise 10:15PMMoonset 10:37AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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AMZ742 Coastal Waters Of Northwestern Puerto Rico Out 10 Nm- 141 Pm Ast Thu Sep 19 2019
.small craft advisory in effect through Saturday evening...
Rest of today..East winds 5 to 10 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 13 seconds. North swell 4 to 8 feet. Numerous showers and isolated Thunderstorms.
Tonight..East winds 5 to 10 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 13 seconds. North swell 4 to 7 feet. Scattered showers and isolated Thunderstorms.
Friday..East winds 5 to 10 knots. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 13 seconds. North swell 4 to 7 feet. Isolated Thunderstorms in the afternoon.
Friday night..Northeast winds 5 to 10 knots veering east after midnight. Seas 8 to 10 feet with occasional seas up to 11 feet. Dominant period 13 seconds. North swell 4 to 7 feet. Scattered showers.
Saturday..East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 13 seconds. North swell 4 to 7 feet. Isolated showers.
Sunday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. North swell 4 to 5 feet. Isolated Thunderstorms, then isolated showers.
Monday..East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 11 seconds. Isolated Thunderstorms. Scattered showers.
AMZ700 141 Pm Ast Thu Sep 19 2019
Synopsis for puerto rico and the uS. Virgin islands waters... Moderate showers are continuing across the Mona passage and the caribbean waters and will persist for the next several hours. Isolated showers are possible elsewhere. A series of swells will affect the region through the upcoming weekend, maintaining hazardous marine conditions. The first swell from the north-northwest, associated with hurricane humberto, will impact the region through Friday and possibly into the weekend. The second swell will result from tropical storm jerry, which is forecast to pass north of the region as a hurricane on Saturday.


7 Day Forecast for Marine Location Near Isabela zona urbana, PR
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location: 18.5, -67.01     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 191910 cca
afdsju
area forecast discussion
national weather service san juan pr
216 pm ast Thu sep 19 2019

Synopsis
Showers are continuing across the region this afternoon, as a slow
yet vigorous tropical wave exits the region. A brief calmer period
will occur late tonight into tomorrow morning before the outer bands
of hurricane jerry move in later in the day. This storm is still
expected to move to our north, yet dangerous seas, rain squalls, and
brief gusty winds are possible across the region through the
weekend. More wet weather is possible for next week.

Short term
After a brief lull in the morning hours, showers have developed over
west and central puerto rico this afternoon. A fairly vigorous
tropical wave that currently is south of the dominican republic is
moving west, yet moisture associated with it is still impacting
the region. Cloudcover produced by the showers has suppressed
heading somewhat across land areas, but there has been sufficient
heating over land, which, coupled with the lingering moisture and
diurnal effects, will likely lead to more shower activity in the
aforementioned locations for the rest of the day. Isolated showers
are also possible for eastern puerto rico and the uvsi.

Tomorrow, our focus turns to hurricane jerry, which is currently
about 435 miles east of the leeward islands and moving to the wnw at
16 mph. Sustained winds are 85 mph. It is projected to pass to our
north late Friday and into Saturday, and there is excellent
agreement and consistency in the forecast models. However, despite
it passing to our north, some impacts are still expected. The outer
bands of the storm are expected to impact the region, so there is
the potential for 1 to 2, with isolated locations receiving 3,
inches of rain in puerto rico and the usvi. Dangerous marine
conditions are also likely to occur and are outlined below. Tropical
storm force winds are not expected to impact the region, though
brief gusty winds are possible with the outer band squalls. Even as
the storm passes through Saturday morning, the tail may bring
rainfall to the region through the weekend.

Long term Sunday through Thursday...

it is still possible that we feel the impacts of hurricane jerry
through Sunday. The tail of the storm is expected to draw up plenty
of moisture from the south, though models disagree on the timing of
the impacts for Sunday. Also during the day on Sunday, a moderate
plume of saharan dust is expected to filter in and last into
Tuesday. This will result in hazy conditions.

Tuesday looks to be a transition day, as we move from the drier
saharan influenced air to a potent tropical wave moving up from the
southeast. This wave is currently about 1000 miles west of the cabo
verde islands, and the national hurricane center gives this system a
30% chance of developing into a tropical depression in the next 5
days. Regardless of its development, we can at least expect a wetter
pattern to ensue for the middle of the next workweek.

Aviation
PrevailingVFR... Sct-bkn lyrs nr fl025... Fl050..Fl120
ovr flying area. Shra isold tsra expected across nw-pr may cause
brief MVFR conds at tjmz tjbq 19 18z-19 22z. Winds from the e-se
10- 15kts with sea breeze variations and ocnl hir gusts bcmg
lgt vrb aft 19 23z.

Marine
We continue to see swells from hurricane humberto, where
the buoy just offshore of san juan is recording 5-6 feet with
occasional higher seas. This swell will last into tomorrow, after
which we'll see rough seas from hurricane jerry as it passes to
our north. Thus, the current forecast for the atlantic waters
north of puerto rico and the usvi for the next 24 hours is seas of
8-10 feet with occasional seas to 13 feet. Even higher seas are
expected for late Friday and Saturday as jerry passes by. Finally,
scattered showers will continue across the local waters west and
south of puerto rico for the remainder of the day, with isolated
showers elsewhere. Please refer to the latest coastal hazard
message (cfwsju) and marine weather message (mwwsju) for the
latest information, as well as important marine information below.

Preliminary point temps pops
Sju 80 92 80 91 30 50 50 40
stt 80 90 79 89 40 50 50 50

Sju watches warnings advisories
Pr... High rip current risk through Sunday afternoon for culebra-
mayaguez and vicinity-north central-northeast-northwest-san
juan and vicinity-southeast.

High surf advisory until 6 pm ast Friday for culebra-mayaguez
and vicinity-north central-northeast-northwest-san juan and
vicinity-southeast-southwest.

Coastal flood advisory until 6 am ast Friday for north central-
northeast-northwest-san juan and vicinity-southeast.

High rip current risk through Saturday afternoon for southwest-
vieques.

Vi... High rip current risk through Sunday afternoon for
st.Thomas... St. John... And adjacent islands.

High surf advisory until 6 pm ast Friday for st.Thomas... St.

John... And adjacent islands.

High rip current risk through Saturday afternoon for st croix.

Am... Small craft advisory until 8 am ast Friday for caribbean waters
of puerto rico from 10 nm to 17n.

Small craft advisory until 8 pm ast Sunday for atlantic waters
of puerto rico and usvi from 10 nm to 19.5n-coastal waters
of northern puerto rico out 10 nm-coastal waters of
northern usvi and culebra out 10 nm-mona passage southward
to 17n.

Small craft advisory until 8 am ast Saturday for coastal waters
of southern usvi vieques and eastern puerto rico out 10 nm.

Small craft advisory from 8 pm this evening to 8 pm ast Saturday
for anegada passage southward to 17n.

Small craft advisory until 8 pm ast Saturday for coastal waters
of northwestern puerto rico out 10 nm-coastal waters of
southwestern puerto rico out 10 nm.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AROP4 - 9757809 - Arecibo, PR 16 mi70 min Calm G 0
PTRP4 16 mi35 min WNW 1.9 G 4.1 85°F
41115 - Rincon, Puerto Rico (181) 17 mi40 min 86°F7 ft
MGZP4 - 9759394 - Mayaguez, PR 21 mi76 min 87°F1009.7 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 37 mi70 min SSE 6 G 12 85°F 84°F1010 hPa
SJNP4 - 9755371 - San Juan, PR 47 mi70 min ENE 13 G 18 86°F 86°F1009 hPa
41053 - San Juan, PR 48 mi160 min E 14 G 18 85°F 86°F5 ft1009.3 hPa (-0.9)

Wind History for Arecibo, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Aquadilla, Rafael Hernandez Airport, PR6 mi50 minESE 15 G 232.00 miThunderstorm Heavy Rain77°F73°F89%1010.2 hPa

Link to 5 minute data for TJBQ

Wind History from JBQ (wind in knots)
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Last 24hrE7CalmS4S7SE4----CalmCalmE3SE3Calm----SE4E3E7E12E8E8--E9E15
G23
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1 day agoCalmCalmW3E6SE3------------------CalmSE3SE3E5NE8E9E6E7E6E10
2 days ago--CalmCalmSE4--------------------E5E4--SE6SE5SE3W7W3W5W4

Tide / Current Tables for Aguadilla, Crashboat Beach, Puerto Rico
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
Click for Map
Thu -- 05:17 AM AST     0.35 feet Low Tide
Thu -- 06:16 AM AST     Sunrise
Thu -- 10:37 AM AST     Moonset
Thu -- 12:09 PM AST     1.68 feet High Tide
Thu -- 06:27 PM AST     Sunset
Thu -- 06:43 PM AST     0.75 feet Low Tide
Thu -- 10:16 PM AST     Moonrise
Thu -- 11:28 PM AST     1.17 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.210.80.60.40.40.40.50.81.11.41.61.71.61.51.31.10.90.80.80.80.91.11.2

Weather Map
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wmap_A
GEOS Local Image of Puerto Rico    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (15,3,4,5)
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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.