Sunday, July12, 2020
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Marine Weather and Tides
Utuado, PR

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
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.

Sunrise 5:58AMSunset 7:08PM Sunday July 12, 2020 6:07 PM AST (22:07 UTC) Moonrise 12:00AMMoonset 12:17PM 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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AMZ712 Coastal Waters Of Northern Puerto Rico Out 10 Nm- 358 Pm Ast Sun Jul 12 2020
.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 8 seconds. Isolated showers.
Monday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Isolated showers.
Monday night..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Scattered showers through the night.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 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 8 seconds. Scattered showers.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Scattered showers.
AMZ700 358 Pm Ast Sun Jul 12 2020
Synopsis for puerto rico and the uS. Virgin islands waters... A tropical wave moving out of the region will continue to result in heavy showers and Thunderstorms across the regional waters tonight. Weather conditions will begin to improve tonight into Monday. A surface high pressure north of the region will maintain moderate to locally fresh easterly winds through at least midweek. Therefore, choppy marine conditions are expected to continue tonight over the offshore atlantic waters.


7 Day Forecast for Marine Location Near Utuado, PR
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location: 18.24, -66.75     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 122032 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 432 PM AST Sun Jul 12 2020

SYNOPSIS.

Lingering moisture associated with the previous tropical wave will continue to result in passing showers over the local waters in the night hours. On Monday, a drier mass is expected to filter into the region. Therefore, mostly fair weather conditions are expected to prevail for most of the forecast area. A surface high pressure will continue to generate moderate to fresh wind flow creating choppy marine conditions for at least Monday over the Atlantic offshore waters.

SHORT TERM. Tonight through Tuesday As the tropical wave departs the area, conditions are expected to improve over the islands. Tonight, however, isolated groups of clouds could drag a few showers over eastern portions of Puerto Rico, as well as over the U.S. Virgin Islands.

The latest satellite-derived precipitable water imagery shows a drier air mass advancing toward the forecast area, with values around 1.4 to 1.5 inches. Additionally, visible imagery from GOES- EAST as well as model data are showing that Saharan dust will be embedded within this air mass. At the low and mid-level, high pressure will promote a stable weather pattern through Tuesday. However, as is usual, patches of moisture may move from time to time, resulting in passing showers over the eastern half of the region. Then, in the afternoon, due to local effects, additional activity might develop over the interior and western half of Puerto Rico. Due to the lack of upper level support, widespread significant activity is not anticipated, although locally heavy showers cannot be ruled out over western Puerto Rico each afternoon.

LONG TERM. Wednesday through Sunday . From previous dis. 432 AM Sunday 12 2020

Drier air with suspended Saharan dust will continue on Wednesday across the region, but moisture will continue at lower levels. A surface high pressure north of the region will cause northeast winds and this will favor showers over west/southwest Puerto Rico on Wednesday afternoon. Moisture increases during the second half of the workweek as a retrogressing TUTT and an induced low- level perturbation enters the eastern Caribbean and moves across the region. This will also cause winds to turn more from the east to southeast, to favor afternoon convection on Thursday and Friday over northwestern PR and from streamers developing off the USVI and over eastern PR. Another weak easterly perturbation is expected to move during the weekend.

AVIATION. VFR conds expected across the local terminals for the rest of today. However, VCSH is expected through 12/22Z at TJSJ, TIST, and TISX. VCTS is expected at TJBQ after 12/18Z, and a TEMPO TSRA has been added to the TAF until 12/21Z, as TSRA may cause MVFR conds. Winds will be from the east at around 10 to 15kt with gusts and sea breeze variations through 12/22Z. Weather improving thereafter, with VFR conds prevailing. Winds will decrease overnight to around 10KT or less.

MARINE.

A surface high pressure located at the north central Atlantic will continue to generate a moderate to fresh easterly wind flow. Therefore, choppy marine conditions are expected over the Atlantic offshore waters of the region tonight. On Monday, a gradually improve is expected in the marine conditions with seas up to 6 feet and winds up to 15 knots. Tranquil marine conditions are expected for the rest of the week.

PRELIMINARY POINT TEMPS/POPS. SJU 90 79 91 80 / 50 30 20 30 STT 89 82 90 80 / 40 20 30 20

SJU WATCHES/WARNINGS/ADVISORIES. PR . None. VI . High Rip Current Risk until 6 PM AST this evening for St Croix.

AM . None.

SHORT TERM . ERG LONG TERM . 99 PUBLIC DESK . LIS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGZP4 - 9759394 - Mayaguez, PR 22 mi55 min 87°F 87°F1015.3 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 24 mi49 min SSE 2.9 G 7 87°F 86°F1014.7 hPa
42085 - Southeast of Ponce, PR 28 mi127 min E 16 G 18 85°F 85°F3 ft1014 hPa (-1.5)
PTRP4 28 mi32 min NNE 4.1 G 7 86°F
41115 - Rincon, Puerto Rico (181) 30 mi41 min 85°F2 ft
JOXP4 - Jobos Bay Reserve, Puerto Rico 34 mi82 min E 8.9 86°F 1016 hPa77°F
SJNP4 - 9755371 - San Juan, PR 37 mi49 min E 16 G 19 85°F 86°F1015 hPa
41053 - San Juan, PR 38 mi127 min E 12 G 16 84°F 84°F1014.3 hPa (-1.4)

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

Link to 5 minute data for TJPS

Wind History from JPS (wind in knots)
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Last 24hr--------------------------------------E5NE5NE5--Calm
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Tide / Current Tables for Playa de Ponce, Puerto Rico
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Playa de Ponce
Click for Map
Sun -- 02:25 AM AST     0.62 feet High Tide
Sun -- 05:58 AM AST     Sunrise
Sun -- 06:07 AM AST     0.27 feet Low Tide
Sun -- 12:17 PM AST     Moonset
Sun -- 03:59 PM AST     0.50 feet High Tide
Sun -- 04:12 PM AST     0.44 feet Low Tide
Sun -- 07:05 PM AST     Sunset
Sun -- 07:31 PM AST     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Mayaguez, Puerto Rico
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Mayaguez
Click for Map
Sun -- 01:22 AM AST     1.25 feet High Tide
Sun -- 06:00 AM AST     Sunrise
Sun -- 08:05 AM AST     0.25 feet Low Tide
Sun -- 12:19 PM AST     Moonset
Sun -- 02:25 PM AST     1.16 feet High Tide
Sun -- 07:08 PM AST     Sunset
Sun -- 07:31 PM AST     Last Quarter
Sun -- 08:22 PM AST     0.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.21.21.10.90.70.50.30.30.30.40.70.91.11.21.11.10.90.70.60.50.60.70.8

Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (18,4,5,8)
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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 numerous 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.