Wednesday, April1, 2020
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Marine Weather and Tides
South Point, 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 5:35AMSunset 5:52PM Wednesday April 1, 2020 3:45 PM CST (21:45 UTC) Moonrise 12:38PMMoonset 12:55AM Illumination 64% 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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7 Day Forecast for Marine Location Near South Point , TX
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location: 12.21, -97.29     debug


Area Discussion for - Brownsville, TX
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FXUS64 KBRO 012002 AFDBRO

Area Forecast Discussion National Weather Service Brownsville TX 302 PM CDT Wed Apr 1 2020

.SHORT TERM (Now through Thursday Night): Shallow 500 mb ridging will build over Mexico and southern TX throughout tonight. A series of 500 mb vort maxes will then move over the top of the ridge axis on Thur/Thur Night. This will tend to shift the ridge axis farther eastwards shift the 500 mb pattern to a more zonal configuration. A surface low pressure system in the central Plains States will start increasing the overall moisture levels across the RGV through Thurs Night. This will likely increase the overall cld cover throughout the short term. But with most of the 500 mb PVA remaining confined to the north of the region, will not go with any significant pops.

As the WAA increases across the region, all of the short term temp guidance increases throughout the period with the ECMWF guidance being the most aggressive with the warmup. Will go close to a model blend with a lean towards the warming side of guidance.

.LONG TERM (Friday through Wednesday): With a surface low moving over North Texas and surface ridging over the eastern CONUS, low to mid-level moisture will continue to stream into the region heading into the weekend with a southeasterly flow. As the wide trough over the western CONUS moves eastward into the central portions of the country, the surface low over North Texas will also move eastward and drag a cold front across the state on Friday. The front is still expected to stall just north of our area on Saturday. The main concerns continue to be the potential for severe weather for Deep South Texas and heavy rainfall, especially for the northern ranchlands Friday night into Saturday. As mentioned in this morning's discussion, SPC has a marginal threat of strong to severe thunderstorms on Friday for all of Deep South Texas and the Rio Grande Valley. Forecast soundings show notable instability Friday and Saturday, especially for the northern ranchlands. Even though heavy rainfall is possible with this activity, flash flooding is not a primary concern, considering the current severity of drought and the ground's capacity to absorb much of the rainfall before runoff becomes an issue. Rain chances continue into Sunday, but will likely be more elevated in nature as high pressure builds into the region.

Heading into next week, the-mid level ridge parks over the Gulf, leaving us under a southwesterly flow aloft. Slight rain chances linger each day, primarily out west, with ample surface moisture due to the southeasterly surface winds and weaker subsidence over those areas. As for temperatures, warm to very warm conditions will continue through the long term, with a slight decrease this weekend with the expected rain and cloud cover, and then very warm temperatures continue into next week.

MARINE: Now through Thursday. With the PGF increasing gradually especially along the lower TX coastline, there will be the potential for SCEC conditions mainly along the Bay waters for tomorrow afternoon. Gulf swells may build up offshore close to SCEC criteria also mainly for Thurs Night.

Friday through Wednesday . Besides the potential for strong to severe thunderstorms this weekend as a front stalls just north of the area, generally favorable marine conditions are expected in the long term with low to moderate wave heights and light to moderate east-southeasterly winds.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 70 85 74 84 / 10 10 0 20 BROWNSVILLE 71 86 73 85 / 10 10 0 20 HARLINGEN 69 89 73 87 / 10 10 0 30 MCALLEN 71 89 73 87 / 10 10 0 20 RIO GRANDE CITY 69 94 73 90 / 0 0 0 20 SOUTH PADRE ISLAND 72 77 74 77 / 0 10 0 20

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

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

Short Term . 60 Long Term . 69


Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS Local Image of SouthCentralPlains    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 Brownsville, TX (17,4,5,8)
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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.