Sunday, August9, 2020
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Marine Weather and Tides
Laguna Vista, 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 6:59AMSunset 8:12PM Sunday August 9, 2020 2:38 PM CDT (19:38 UTC) Moonrise 11:02PMMoonset 11:08AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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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GMZ130 Laguna Madre From The Port Of Brownsville To The Arroyo Colorado- Laguna Madre From The Arroyo Colorado To 5 Nm North Of Port Mansfield Tx- Laguna Madre From 5 Nm North Of Port Mansfield To Baffin Bay Tx- 1010 Am Cdt Sun Aug 9 2020
Today..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Tonight..Southeast winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers.
Monday..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Monday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Tuesday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay building to choppy in the afternoon.
Tuesday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Wednesday..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Wednesday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Thursday..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Thursday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 1010 Am Cdt Sun Aug 9 2020
Synopsis..Broad surface high pressure extending across the gulf of mexico will continue to result in light to moderate onshore winds and low to moderate seas. Small craft exercise eaution and small craft advisory conditions are not expected.


7 Day Forecast for Marine Location Near Laguna Vista, TX
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location: 26.14, -97.28     debug


Area Discussion for - Brownsville, TX
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FXUS64 KBRO 091937 AFDBRO

Area Forecast Discussion National Weather Service Brownsville TX 237 PM CDT Sun Aug 9 2020

.SHORT TERM (Now through Monday Night): 500 mb ridging will continue to dominate across the state through the short term period while an inverted trough/tropical wave to the south across the western Bay of Campeche advances westward into inland Mexico. A stray shower could be possible through the rest of this afternoon, otherwise anticipate mostly clear to partly cloudy skies with a mix of some low to mid- level cumulus and occasional passing high level clouds arching north from the tropical wave to the south. Expect a warm and muggy night with overnight lows generally in the mid to upper 70s. A few showers will be possible overnight offshore.

Monday compared to today looks to host a slightly better opportunity for a couple of sea breeze showers, perhaps a thunderstorm, as a result of a very subtle uptick in the moisture. Additionally, some isolated activity will exist offshore as well. Temperatures will run around climatological average on Monday with areas climbing above 100 degrees out west. The afternoon heat indices across the region are expected to peak slightly higher with values between 103 and 108 degrees Fahrenheit. Any sea breeze activity will come to an end by Monday evening and will lead to fair night featuring warm and muggy conditions under mostly clear to partly cloudy skies.

.LONG TERM (Tuesday through Sunday): A midlevel broad ridge will continue to be the dominating synoptic feature for the forecast period. As this ridge expands through midweek subsidence should suppress moisture in the area, though a stray sea breeze shower or thunderstorms can not be completely ruled out. Moisture charts show mean RH at the 850-300mb layer ranging from 30-45 percent Wed-Friday which is not conducive for deep convection or even sustained sea breeze activity. The aforementioned high pressure is still indicated to retrograde westward introducing a marginal surface weakness moving into the Western Gulf next weekend. This may lead to deeper moisture and a slight increase PoPs, especially along coastal counties, but current models are trending downward for this activity. Temperatures will continue to be near or just above normal for this time of year with highs in the upper 90s in the RGV to the low 100s west and heat indices of 105 to 110 across the CWA. Temperatures may even increase a few more degrees midweek as the ridge continues to expand and strengthen.

.MARINE: (Now Through Monday night): Marine conditions will remain fair through Monday night as a broad area of surface high pressure continues to stretch across the Gulf of Mexico. Light to moderate onshore winds and low to moderate seas will continue to trend. The opportunity for isolated showers and/or thunderstorms will exist offshore, especially from Monday into Monday night.

(Tuesday through Sunday) . High pressure in the northern Gulf will continue to produce southeasterly light to moderate southeasterly winds to Deep South Texas through the forecast period. An isolated shower or thunderstorm can not be ruled out each day possibly building seas and briefly increasing winds. Otherwise, favorable marine conditions will prevail.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 80 93 80 93 / 10 10 10 20 BROWNSVILLE 79 95 79 94 / 10 10 10 20 HARLINGEN 78 97 78 96 / 0 10 10 20 MCALLEN 79 99 79 97 / 0 10 0 20 RIO GRANDE CITY 77 101 78 101 / 0 0 0 10 SOUTH PADRE ISLAND 82 87 82 88 / 10 10 10 10

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

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

62-Brady . Short Term 59-GB/68-McGinnis . Long Term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTIT2 - 8779770 - Port Isabel, TX 6 mi51 min SSE 11 G 19 89°F 87°F1020.1 hPa
BZST2 8 mi57 min SE 13 G 15 85°F 86°F1017.2 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 8 mi51 min SE 13 G 16 86°F 1017.9 hPa
RLIT2 8 mi51 min SE 13 G 16 88°F 90°F1017.2 hPa
PMNT2 30 mi51 min 89°F 87°F1018.5 hPa
42045 - PI-745 TABS K 42 mi99 min SE 9.7 G 12 84°F 85°F1019.1 hPa (+0.0)
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 47 mi51 min SSE 14 G 20 87°F 89°F1018.2 hPa

Wind History for South Padre Island C.G Station, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brownsville, Brownsville / South Padre Island International Airport, TX18 mi46 minSE 17 G 2010.00 miPartly Cloudy94°F73°F52%1017.8 hPa
Harlingen, Rio Grande Valley International Airport, TX22 mi47 minSE 15 G 2110.00 miA Few Clouds93°F72°F50%1017.4 hPa

Link to 5 minute data for KPIL

Wind History from PIL (wind in knots)
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Last 24hr----E14E15E14E11E12
G20
SE11SE9SE11SE10SE9SE9SE9SE7SE6SE6SE4SE5SE5SE8SE12E13--
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Port Isabel, Texas
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Port Isabel
Click for Map
Sun -- 01:45 AM CDT     0.47 feet Low Tide
Sun -- 06:58 AM CDT     Sunrise
Sun -- 08:09 AM CDT     0.91 feet High Tide
Sun -- 12:07 PM CDT     Moonset
Sun -- 02:20 PM CDT     0.52 feet Low Tide
Sun -- 08:09 PM CDT     Sunset
Sun -- 09:02 PM CDT     0.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.50.50.50.60.70.80.90.90.90.80.70.60.60.50.50.60.60.70.80.80.80.80.8

Tide / Current Tables for Port Isabel, Texas (2)
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Port Isabel
Click for Map
Sun -- 01:11 AM CDT     0.59 feet Low Tide
Sun -- 06:58 AM CDT     Sunrise
Sun -- 09:52 AM CDT     1.07 feet High Tide
Sun -- 12:07 PM CDT     Moonset
Sun -- 02:35 PM CDT     0.52 feet Low Tide
Sun -- 08:09 PM CDT     Sunset
Sun -- 11:13 PM CDT     0.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.60.60.70.80.90.911.11.110.80.60.50.50.50.60.60.70.80.90.90.9

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 Brownsville, TX (15,3,4,5)
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Ground Weather Radar Station Brownsville, TX
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weather_mapweather_map weather_map

Gulf Stream Current


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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.