Tuesday, August11, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
El Combate, 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 6:13AMSunset 7:04PM Tuesday August 11, 2020 2:24 PM AST (18:24 UTC) Moonrise 12:00AMMoonset 12:40PM Illumination 47% 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
    EDIT      (on/off)   Help
AMZ741 Mona Passage Southward To 17n- 1025 Am Ast Tue Aug 11 2020
Rest of today..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Tonight..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers through the night.
Wednesday..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Wednesday night..East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Numerous showers and isolated Thunderstorms.
Thursday..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Friday..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Saturday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
AMZ700 1025 Am Ast Tue Aug 11 2020
Synopsis for puerto rico and the uS. Virgin islands waters... Light to moderate trade winds will prevail across most of the regional waters today, increasing to be moderate to fresh tonight. Additionally, locally higher winds may result in choppy conditions across portions of the local waters. A tropical wave is forecast to move across the area, leading to gradually deteriorating marine conditions during rest of the work-week. Shower and Thunderstorm activity is also expected to increase with the passage of this wave.


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


Area Discussion for - San Juan, PR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXCA62 TJSJ 111516 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 1116 AM AST Tue Aug 11 2020

UPDATE. No change to previous short term forecast package and reasoning at this time. Lingering moisture combined with local and diurnal effects will give way to afternoon showers and possibly isolated thunderstorms mainly over parts of the interior and west sections of Puerto Rico this afternoon. Mostly isolated showers are expected elsewhere as the upper level ridge will maintain its hold and limit deep convection. Otherwise, still expect tropical wave to move across the region Wednesday through Thursday with increasing chance for showers and thunderstorms across parts of the islands and coastal waters. Recent TJSJ 11/12Z upper air sounding was relatively dry compared to previous days sounding, with precipitable water down to 1.39 inches. However, pockets of moisture will give way to brief afternoon convection and some may be locally heavy especially over western PR.

AVIATION UPDATE. VFR conds to prevail. Wdly SCT lyrs nr FL030 . FL060. No sig operational AVN wx impacts attm.

MARINE UPDATE. No change to previous marine discussion at this time.

PREV DISCUSSION. /issued 400 AM AST Tue Aug 11 2020/

SYNOPSIS .

Generally fair weather with a typical pattern of afternoon showers in western Puerto Rico is anticipated to continue today. Tomorrow, a tropical wave will bring increasing moisture to the area. Shower activity will be more widespread and vigorous, though showers are likely to be relatively quick-moving. This weekend, another tropical wave is forecast to push across the region, and a significant increase in shower activity seems likely by Sunday.

SHORT TERM . Today through Thursday .

Short term forecast is still on track. A mid to upper level ridge will continue to prevail across the local islands through the forecast cycle, although weakening late Wednesday into early Thursday. The next tropical wave passage, and best moisture advection across Puerto Rico and the US Virgin Islands, is still expected late Wednesday into Thursday, with precipitable water reaching about 2.0 inches. Nevertheless, given the presence of vertical shear and brisk easterly winds, rainfall totals are expected to be light to moderate. Under this evolving pattern, continue to expect mainly fair weather conditions, with locally- induced afternoon showers and isolated thunderstorms across western Puerto Rico today. The intensity and areal coverage of afternoon showers and thunderstorms are expected to increase on Wednesday, as the tropical wave approaches the forecast area. Frequent passing showers with isolated thunderstorms are expected to prevail across the eastern third of Puerto Rico, as well as the US Virgin Islands Wednesday evening into Thursday. Urban and small stream flooding cannot be ruled out with the heaviest showers. As the wave moves away early Thursday morning, a much drier air mass is expected to encompass the forecast area once again. Maximum temperatures will continue to range from the low 90s in the lower elevations to the upper 70s in the highest mountains today.

LONG TERM . Friday through Wednesday .

A region of dry air is expected to persist on Friday and into the day on Saturday, with patches of near-normal levels of moisture streaming across the area, embedded in the trade winds. Aloft, conditions do not look to be very favorable for convective activity, with a mid- to upper-level ridge stretching across the region. This ridge will be relatively weak in the mid-levels, and so there is the potential for some plumes of moisture into the lower mid-levels during this time frame. On the whole, however, a typical pattern of afternoon showers due to local effects and diurnal heating and passing showers during the overnight and morning hours is expected, though activity will be somewhat inhibited.

There remains some uncertainty with respect to what the weekend will bring. It is likely that the affects of a tropical wave will be felt across the area during the weekend, though. It is also likely that this feature will be an open wave during its passage as well. As for the timing, the arrival of the wave and its moisture is likely to be during the latter part of the day on Saturday, but could be as late as Sunday morning. Moisture will persist across the area into Monday, but the duration remains a bit uncertain as well. Regardless, wet conditions are quite possible for Saturday, and likely for Sunday, with fairly good potential that they will last into Monday. With significant questions remaining with respect to the development of this feature, though, the true extent and nature of the impacts to the region remains uncertain at this time. Conditions aloft are forecast to be marginally favorable for convection during this time frame, mostly on Sunday, with the ridge aloft weakening, and its influence over the area waning. As such, widespread showers are expected, with isolated to occasionally scattered thunderstorms.

The wave is forecast to exit the region by Tuesday morning. A drying trend is anticipated for Tuesday into Wednesday. A decrease in shower activity is likely. Aloft, conditions will become increasingly unfavorable for convective activity. Thunderstorms will be less likely, and afternoon showers will be less widespread and vigorous. The typical pattern of afternoon showers in western and interior Puerto Rico, and passing showers in the east during the night and morning is still anticipated, as there will remain sufficient moisture, especially in patches of moisture carried in on the trade winds.

AVIATION .

VFR conds are expected to prevail at all TAF sites through the forecast period. Winds will continue from the east at 10 knots, increasing at around 15 knots with higher gusts and sea breeze variations aft 11/13z. VCTS are possible at JBQ aft 11/16z.

MARINE .

Relatively tranquil conditions persist across the local waters today, with seas generally less than 4 feet. Increasing winds are expected, however, later today into tonight, up to around 20 knots across much of the local waters. Building seas are also anticipated tonight into tomorrow, up to around 5 feet tonight and 6 feet by tomorrow night. Conditions - both winds and seas - are forecast to remain below Small Craft Advisory criteria. There is a low risk of rip currents for the majority of beaches across the area, but that risk is forecast to increase by tonight. Isolated thunderstorms are possible over the local waters this afternoon, mostly near the western coast of Puerto Rico. Tomorrow will see an increasing potential for thunderstorms, with the arrival of a tropical wave.

PRELIMINARY POINT TEMPS/POPS. SJU 88 79 89 79 / 20 20 60 60 STT 90 79 90 80 / 20 30 60 60

SJU WATCHES/WARNINGS/ADVISORIES. PR . None. VI . None. AM . None.

SHORT TERM . RAM LONG TERM . TW PUBLIC DESK . ERG


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MISP4 - 9759938 - Mona Island, PR 0 mi54 min 85°F 86°F1015.4 hPa
41115 - Rincon, Puerto Rico (181) 40 mi58 min 86°F2 ft
PTRP4 41 mi29 min NNE 9.9 G 16 88°F
MGZP4 - 9759394 - Mayaguez, PR 42 mi54 min 88°F 87°F1014.5 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 48 mi54 min SSE 8.9 G 14 87°F 86°F1014.1 hPa

Wind History for Mayaguez, PR
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for TJMZ

Wind History from JMZ (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hr----------------------------------------E6E5E8E9
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Puerto Real, Puerto Rico
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Puerto Real
Click for Map
Tue -- 12:56 AM AST     0.81 feet High Tide
Tue -- 06:10 AM AST     Sunrise
Tue -- 07:33 AM AST     0.17 feet Low Tide
Tue -- 12:36 PM AST     Moonset
Tue -- 12:47 PM AST     Last Quarter
Tue -- 02:34 PM AST     1.04 feet High Tide
Tue -- 06:57 PM AST     Sunset
Tue -- 08:54 PM AST     0.52 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.80.80.80.70.50.40.30.20.20.30.40.60.80.91110.90.70.60.50.50.50.6

Tide / Current Tables for Mayaguez, Puerto Rico
   EDIT      (on/off)   Help   One Week of Data
Mayaguez
Click for Map
Tue -- 12:59 AM AST     1.12 feet High Tide
Tue -- 06:09 AM AST     Sunrise
Tue -- 07:38 AM AST     0.24 feet Low Tide
Tue -- 12:36 PM AST     Moonset
Tue -- 12:47 PM AST     Last Quarter
Tue -- 02:37 PM AST     1.43 feet High Tide
Tue -- 06:57 PM AST     Sunset
Tue -- 08:59 PM AST     0.71 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.11.11.10.90.80.60.40.30.20.30.50.81.11.31.41.41.31.210.90.70.70.80.8

Weather Map
       (on/off)   Help Weather Map
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 (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Puerto Rico,Virgin Islands
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.