Friday, August18, 2017 L-36.com


Marine Weather and Tides
South Padre Island, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:03AMSunset 8:03PM Friday August 18, 2017 11:16 AM CDT (16:16 UTC) Moonrise 2:44AMMoonset 4:35PM Illumination 14% Phase: Waning Crescent; Moon at 26 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- 1013 Am Cdt Fri Aug 18 2017
Rest of today..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon.
Tonight..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..South winds 5 to 10 knots becoming east 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon.
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 becoming east 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon.
Sunday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Monday..Southeast winds 5 to 10 knots becoming east 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon. Slight chance of showers and Thunderstorms.
Monday night..East winds 10 to 15 knots becoming southeast 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Tuesday..East winds 5 to 10 knots. A light chop on the bay. Slight chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots. A light chop on the bay. Slight chance of showers and Thunderstorms.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 1013 Am Cdt Fri Aug 18 2017
Synopsis...light to moderate southeast winds and low to moderate seas expected to prevail across the lower texas coastal waters as surface high pressure remains across the gulf of mexico. Small craft exercise caution and small craft advisory conditions are not anticipated. Shower and Thunderstorm chances increase Saturday night and continue through the forecast period.

7 Day Forecast for Marine Location Near South Padre Island, TX
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location: 26.11, -97.16     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 181121 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
621 am cdt Fri aug 18 2017

Discussion Updated for latest aviation discussion below.

Aviation Satellite images and surface observations indicate a
few patches of low clouds across portions of the CWA this morning.

Ceilings were near 500ft at khbv. Visibilities were near 5sm with
fog at kbks and kebg to near 6sm with fog at khrl and kpil. Expect
vfr conditions to prevail today as 500mb subtropical ridge across
the northwest gulf of mexico provides subsidence across the area
this afternoon.

Prev discussion issued 355 am cdt Fri aug 18 2017
short term (today through Saturday): 500mb subtropical ridge
across the northwest gulf of mexico today will move westward
across the texas coast Saturday. Moisture will be limited below
850mb through the short term so not much in the way in rain
chances are expected today through Saturday. Will continue with
persistence for temperatures this afternoon and Sat afternoon.

Long term (Saturday night through Thursday): the long term
forecast reasoning remains stable. 500 mb high pressure initially
dominant over deep south texas and the rio grande valley will
retreat north and be pinched in half by a closed 500 mb low that
will approach from the southeast and move just south of the texas
big bend. Isolated showers over a majority of the lower texas
coastal waters early in the forecast period will spread west and
become isolated to scattered showers and thunderstorms within the
bro cwfa due to the influence of the closed mid-level low.

Inherited precipitation chances were increased to reflect this,
while inherited daytime high temperatures were trimmed back
slightly to account for the greater rain chances and cloud cover.

Marine (today through Saturday): seas were near 4 feet with
south to southeast winds near 14 knots at buoy020 early this
morning. Light to moderate southeast winds will prevail across
the coastal waters today with surface high pressure across the
gulf of mexico. The pressure gradient will remain weak across
the lower texas coast tonight into Saturday. Light east to
southeast winds will prevail across the western gulf of mexico
Saturday.

Saturday night through Thursday: surface high pressure will
dominate over the western gulf of mexico, ensuring light to
moderate winds and low to moderate seas. Small craft exercise
caution and small craft advisory are not anticipated to be
needed.

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
61 66 56


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZST2 3 mi47 min SE 7 G 8 82°F 78°F1015.6 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi47 min SE 8 G 9.9 84°F 1016.8 hPa
PTIT2 - 8779770 - Port Isabel, TX 4 mi47 min 86°F 82°F1016.3 hPa
42044 - PS-1126 TABS J 8 mi137 min SSE 1.9 G 1.9 82°F 80°F1015.9 hPa (+1.0)79°F
RLIT2 12 mi47 min ESE 8 G 11 86°F 85°F1016.3 hPa
PMNT2 34 mi47 min 85°F 87°F1016.5 hPa

Wind History for South Padre Island C.G Station, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Isabel, Port Isabel-Cameron County Airport, TX10 mi24 minS 10 G 1710.00 miA Few Clouds91°F75°F59%1015.9 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi24 minSE 910.00 miA Few Clouds87°F77°F72%1016.2 hPa

Wind History from SPL (wind in knots)
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Last 24hrSE7S7S10S8S8S9S8W5SW11S14SW13SW8SW6N4E3NE7NE6E4E5E6E4E3E4Calm
1 day agoS8S7S4SW5NW3N3N3N6E4NE4E5E13SE16NW8S4S7S5CalmCalmSE6SE6SE5SE6SE5
2 days agoSE7SE7SE8SE3S5S6S6SW5NW3NW4SW8SW11S20SW16
G21
SW14
G18
S15S18S15S14S10SW9SW8S9S7

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Queen Isabella Causeway (east end)
Click for Map
Fri -- 03:44 AM CDT     Moonrise
Fri -- 04:09 AM CDT     1.42 feet High Tide
Fri -- 07:02 AM CDT     Sunrise
Fri -- 05:34 PM CDT     Moonset
Fri -- 07:23 PM CDT     -0.40 feet Low Tide
Fri -- 08:01 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.11.31.41.41.41.41.31.31.21.21.110.90.70.40.2-0.1-0.3-0.4-0.4-0.3-00.3

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Fri -- 03:46 AM CDT     Moonrise
Fri -- 04:13 AM CDT     1.97 feet High Tide
Fri -- 07:04 AM CDT     Sunrise
Fri -- 05:35 PM CDT     Moonset
Fri -- 07:35 PM CDT     0.06 feet Low Tide
Fri -- 08:02 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.61.81.9221.91.81.81.71.71.71.61.51.310.70.50.20.10.10.20.40.7

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Brownsville, TX (12,3,4,5)
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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 numerious 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.