Friday, August7, 2020
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Marine Weather and Tides
Guadalupe-Guerra, TX

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 7:33AMSunset 8:40PM Friday August 7, 2020 6:53 PM CDT (23:53 UTC) Moonrise 9:33PMMoonset 9:02AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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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7 Day Forecast for Marine Location Near Guadalupe-Guerra, TX
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location: 20.87, -105.44     debug


Area Discussion for - Brownsville, TX
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FXUS64 KBRO 072334 AAA AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 634 PM CDT Fri Aug 7 2020

. 00z Aviation Update .

DISCUSSION. Updated for latest aviation discussion below.

AVIATION. VFR conditions expected to prevail through the remainder of the evening and through the night. There could be some brief, intermittent MVFR ceilings overnight tonight or early Saturday morning. Shower and isolated thunderstorm chances will increase (30% chance) east-to-west by mid-morning Saturday and continue through the afternoon as a weak upper-level disturbance moves over the area. Any shower or storm will be capable of briefly producing heavy rainfall, reduce visibilities, and lower ceilings, with occasional to frequent cloud-to-ground lightning possible. Otherwise, generally VFR conditions should prevail, with light to moderate southeast winds at the surface.

PREV DISCUSSION. /issued 246 PM CDT Fri Aug 7 2020/

SHORT TERM (Tonight through Saturday Night):Ridging at all levels will remain in control of the CWA through the short-term forecast period. A weak mid/upper trough axis currently situated in a northeast to southwest orientation across the central Gulf will slowly translate westward. The main trough axis is still expected to remain south of the area. The northwest flank of this trough axis does have PWATs around 2 inches. Some of this moisture is expected to advect into the CWA on Saturday. This has been well advertised by the models all week and will maintain this forecast reasoning. As a result, the highest PoPs are expected on Saturday with low-end chance PoPs for the eastern two-thirds of the CWA. A slightly weaker cap and slightly deeper moisture will allow the potential for a few thunderstorms on Saturday. Otherwise, most of the pcpn is expected to be shallower in nature. This small nose of higher moisture is expected to dissipate somewhat on Saturday night and so rain chances will drop to isolated again but mainly for the waters.

See no reason to deviate from the persistence temperature forecast that has been place for much of the week. The overall pressure and thermal gradient will remain on the weak to occasionally moderate side.

LONG TERM (Sunday through Friday):The long-term forecast remains virtually the same with little to no changes from the previous forecast package. 12Z model suite continues to show persistent Summer mid-level ridging remaining over Texas with the center of the 595mb ridge retrograding over the NM/AZ border. Weak impulses track westward along the southern periphery of the ridge, well south of Deep south Texas/RGV. No distinct tropical waves are being analyzed by either the GFS/ECMWf or the NHC to pass over the Gulf of Mexico next week or not until next weekend. Typical August moisture resides across the region which may result in daily sea breeze showers remaining in the forecast for the time being. Model pop guidance remains consistent with best probabilities residing east of I 69C for next several days. No change in the temperatures forecast with previous forecast numbers indicated to be a few degrees above model consensus due to drying soil conditions and more sunshine then clouds and rain.

MARINE:(Tonight through Saturday Night) . Per the above reasoning, chances for convection will peak on Saturday with waning chances thereafter. Generally weak to occasionally moderate onshore flow will prevail through Saturday night. Seas will generally average 2 to 3 feet.

(Sunday through Wednesday) . Light to occasional moderate onshore flow and a slight sea regime to persist through middle of next week. No change in the position of the surface ridge anchored over the Eastern Gulf and with weak low pressure pressure residing over West Texas the pressure gradient remains slack. Occasional overnight streamer showers can be expected possible move over the Laguna Madre with some brief showers or even a thunderstorm developing during the daytime hours mainly over the Gulf waters.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 91 80 92 79 / 20 20 30 10 BROWNSVILLE 94 80 94 80 / 20 20 30 10 HARLINGEN 95 78 95 78 / 20 20 30 10 MCALLEN 95 78 96 78 / 20 10 30 0 RIO GRANDE CITY 98 77 98 77 / 20 10 20 0 SOUTH PADRE ISLAND 88 82 87 82 / 20 20 30 10

BRO WATCHES/WARNINGS/ADVISORIES. TX . None. GM . None.

This product is also available on the web at: HTTP://WEATHER.GOV/RGV

Aviation . 67-Mejia


Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for Puerto Vallarta, Jalisco, Mexico
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Puerto Vallarta
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Fri -- 06:06 AM CDT     0.28 meters Low Tide
Fri -- 07:37 AM CDT     Sunrise
Fri -- 11:01 AM CDT     Moonset
Fri -- 12:30 PM CDT     1.05 meters High Tide
Fri -- 06:02 PM CDT     0.58 meters Low Tide
Fri -- 08:35 PM CDT     Sunset
Fri -- 11:31 PM CDT     Moonrise
Fri -- 11:53 PM CDT     1.10 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.10.90.70.50.30.30.30.40.60.811110.80.70.60.60.60.70.811.1

Tide / Current Tables for
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Weather Map
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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 Brownsville, TX (19,4,5,8)
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Ground Weather Radar Station Brownsville, TX
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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.