Tuesday, August11, 2020
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Marine Weather and Tides
Laguna Heights, 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 7:00AMSunset 8:09PM Tuesday August 11, 2020 7:04 PM CDT (00:04 UTC) Moonrise 12:00AMMoonset 12:51PM Illumination 44% Phase: Third Quarter Moon; Moon at 23 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- 351 Pm Cdt Tue Aug 11 2020
Tonight..South 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 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon.
Thursday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Friday..South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon.
Friday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Saturday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Sunday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon. Slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 351 Pm Cdt Tue Aug 11 2020
Synopsis..Surface high pressure in the northern gulf of mexico and low pressure across west texas will maintain light to moderate southeast winds offshore of the lower texas coast. Isolated showers or Thunderstorms are possible each day, mainly overnight into the early morning hours.


7 Day Forecast for Marine Location Near Laguna Heights, TX
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location: 26.1, -97.23     debug


Area Discussion for - Brownsville, TX
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FXUS64 KBRO 112346 AAA AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 646 PM CDT Tue Aug 11 2020

DISCUSSION. Updated for latest aviation discussion below.

AVIATION. Satellite images and surface observations indicate a few mid level clouds across the CWA early this evening. Expect VFR conditions across the Rio Grande Valley tonight into early Wednesday morning as the 500mb subtropical ridge across west Texas continues to provide subsidence across south Texas.

PREV DISCUSSION. /issued 226 PM CDT Tue Aug 11 2020/ SHORT TERM (Tonight through Wednesday Night): Mid-level high pressure continues to build across West Texas, with little change expected to the forecast. Models continue to trend towards drier conditions into midweek decreasing chances for any shower or thunderstorm activity. With higher PWATS on todays 12z sounding, a slight increase in mid-level moisture compared to previous model runs and light to moderate southeasterly flow we will keep a small chance of sea breeze showers and thunderstorms in the forecast through sunset. Tonight into Wednesday night slight drying of the mid and low levels should help to suppress any shower of thunderstorm activity across the CWA. Temperatures will remain seasonal with heat indices of 100 to 105 degrees.

LONG TERM (Thursday through Tuesday): With the 500 mb ridge in control across the Desert Southwest and into Texas, expect for continued hot conditions with near average temperatures for the middle of August and mainly rain free conditions through the remainder of the workweek. Moisture and rain chances climb this upcoming weekend as a mid-level inverted trough approaches the Mexico coast. Rain chances then linger for the beginning of next week, which could be further aided by a disturbance and frontal system rotating around the ridge across portions of Texas to our north. Temperatures will continue to run near or slightly below average this weekend and into next week.

MARINE (Now through Wednesday night): A surface high in the northern Gulf along with low pressure over west Texas will continue to bring in light to moderate southeasterly winds and low to moderate seas through the time frame. During the overnight and early morning hours we could continue to see a slight chance of showers and a thunderstorms develop which may briefly lead to locally higher seas and gusty winds.

Thursday through Sunday night: Continued surface high pressure over the Gulf of MExico will result in fair to favorable marine conditions through Sunday night with light to moderate onshore winds and generally low seas. Isolated to scattered showers and thunderstorms may be possible this weekend and could briefly result in locally higher seas and/or gusty winds.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 79 93 80 92 / 10 10 0 10 BROWNSVILLE 78 95 79 95 / 10 10 0 10 HARLINGEN 77 96 78 97 / 10 10 0 10 MCALLEN 78 97 79 99 / 10 10 0 0 RIO GRANDE CITY 77 101 78 101 / 10 10 0 0 SOUTH PADRE ISLAND 81 88 82 88 / 10 10 0 10

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

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

61-Castillo/67-Mejia


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTIT2 - 8779770 - Port Isabel, TX 3 mi65 min SE 13 G 19 87°F 87°F1015.1 hPa (-1.0)
PCGT2 - 8779748 - South Padre Island CGS, TX 4 mi65 min SSE 16 G 19 86°F 1012.8 hPa (-1.0)
BZST2 5 mi65 min SSE 12 G 15 85°F 87°F1012.1 hPa (-1.0)
RLIT2 12 mi65 min SE 18 G 20 88°F 92°F1011.9 hPa (-0.9)
PMNT2 33 mi65 min 89°F 91°F1013.1 hPa (-1.0)
42045 - PI-745 TABS K 40 mi125 min SSE 14 G 16 84°F 87°F1014 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, TX17 mi72 minSSE 15 G 2010.00 miFair91°F75°F59%1012.6 hPa

Link to 5 minute data for KSPL

Wind History from SPL (wind in knots)
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Last 24hrSE7S7S10S8S8S9S8W5SW11S14SW13SW8SW6N4E3NE7NE6E4E5E6E4E3E4Calm
1 day agoS8S7S4SW5NW3N3N3N6E4NE4E5E13SE16NW8S4S7S5CalmCalmSE6SE6SE5SE6SE5
2 days agoSE7SE7SE8SE3S5S6S6SW5NW3NW4SW8SW11S20SW16
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Tide / Current Tables for Port Isabel, Texas
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Port Isabel
Click for Map
Tue -- 12:19 AM CDT     0.91 feet High Tide
Tue -- 12:33 AM CDT     Moonrise
Tue -- 03:28 AM CDT     0.89 feet Low Tide
Tue -- 06:59 AM CDT     Sunrise
Tue -- 07:33 AM CDT     0.94 feet High Tide
Tue -- 11:47 AM CDT     Last Quarter
Tue -- 01:51 PM CDT     Moonset
Tue -- 03:59 PM CDT     0.23 feet Low Tide
Tue -- 08:07 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.90.90.90.90.90.90.90.90.80.70.60.50.30.30.20.30.30.40.60.70.80.9

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Tue -- 12:07 AM CDT     1.33 feet High Tide
Tue -- 12:35 AM CDT     Moonrise
Tue -- 01:56 AM CDT     1.33 feet Low Tide
Tue -- 07:01 AM CDT     Sunrise
Tue -- 07:04 AM CDT     1.41 feet High Tide
Tue -- 11:47 AM CDT     Last Quarter
Tue -- 01:52 PM CDT     Moonset
Tue -- 03:51 PM CDT     0.62 feet Low Tide
Tue -- 08:08 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.31.31.31.31.41.41.41.41.31.31.110.80.70.60.60.70.70.911.11.31.4

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 (20,4,5,8)
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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.