Monday, June26, 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 6:39AMSunset 8:26PM Monday June 26, 2017 10:48 PM CDT (03:48 UTC) Moonrise 8:24AMMoonset 9:57PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 910 Pm Cdt Mon Jun 26 2017
Rest of tonight..Southeast winds around 10 knots becoming east early in the morning. A light chop on the bay subsiding to smooth early in the morning. Scattered showers.
Tuesday..East winds up to 5 knots increasing to around 15 knots. Smooth on the bay increasing to a moderate chop. Numerous showers in the morning. Scattered Thunderstorms through the day. Scattered showers in the afternoon.
Tuesday night..East winds around 15 knots becoming southeast 5 to 10 knots in the late evening and overnight. A moderate chop on the bay subsiding to a light chop in the late evening and overnight. Slight chance of showers and Thunderstorms in the evening, then chance of showers and Thunderstorms after midnight.
Wednesday..Southeast winds 5 to 10 knots increasing to around 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon. Chance of showers and Thunderstorms.
Wednesday night..South winds around 15 knots. A moderate chop on the bay. Chance of showers and Thunderstorms.
Thursday..South winds 10 to 15 knots becoming southeast around 20 knots in the afternoon. A moderate chop on the bay increasing to choppy in the afternoon. Chance of showers and Thunderstorms.
Thursday night..Southeast winds around 20 knots shifting south after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Friday..South winds around 20 knots shifting southeast in the afternoon. A moderate chop on the bay increasing to choppy in the afternoon.
Friday night..Southeast winds around 20 knots. Choppy on the bay.
Saturday..Southeast winds around 20 knots. Choppy on the bay.
Saturday night..Southeast winds around 20 knots becoming 10 to 15 knots after midnight. A moderate chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 910 Pm Cdt Mon Jun 26 2017
Synopsis..Light to moderate southeast winds and a slight sea will continue to be supported by broad high pressure extending into the western gulf of mexico. Winds and seas to gradually increase mid to the latter portions of the week as low pressure strengthens over the south plains tightening the pressure gradient. There remains a good chance of showers and Thunderstorms through Wednesday with lessor coverage by the end of the work week and next weekend.

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 270156 aab
afdbro
area forecast discussion... Updated
national weather service brownsville tx
856 pm cdt Mon jun 26 2017

Discussion As the daytime convection dissipates with the
waning daytime heating will go ahead and make a few updates to
the pop and sky grids. Slight chances will be maintain inland much
of the evening and overnight period but will keep chance pops
right along the immediate coastal areas and offshore with a low
pressure surface trough present. Abundant tropical moisture to
converge along this boundary allowing for additional shower
development overnight. Latest NAM and hi-res models suggest the
gulf convection to move towards the coast by sunrise and inland
after sunrise.

Prev discussion issued 636 pm cdt Mon jun 26 2017
discussion... Updated for latest aviation discussion below.

Aviation... Convection is not currently impacting the air
terminals with isolated to scattered convection continuing to
slowly dissipate as daytime heating wanes. Sufficient moisture and
weak low pressure in the mid and upper level of the atmosphere
will maintain at least some chance of showers developing through
the night with mainlyVFR conditions. Showers are expected to
increase over the coastal waters overnight and move inland around
sunrise with additional showers and thunderstorms developing
Tuesday morning and afternoon. MainlyVFR conditions with brief
short-lived MVFR in and around the showers and thunderstorms.

Light winds overnight become light easterly 10 knots or less
Tuesday.

Prev discussion... Issued 251 pm cdt Mon jun 26 2017
short term (tonight through Tuesday night): a weakness aloft
persists over the west gulf, with an inverted trough analyzed at
the surface. Disorganized shower activity will continue across the
cwa through this evening in a deep east flow with rich
subtropical tropical moisture measuring over two inches on the pw
scale.

As diurnal heating wanes tonight, cloudiness over land should
diminish, with ongoing convection over the gulf waters. Overnight
low temperatures will be in the mid 70s.

A few showers will drift onshore overnight, but mostly sunny skies
will otherwise start out the day Tuesday. Isolated shower coverage
will increase to scattered or even numerous during the day, but once
again little organization is expected. Garden variety tropical
showers and thunderstorms will be the norm, with partly to mostly
cloudy skies and high temperatures ranging from the mid to upper 80s
to the lower to mid 90s. A quarter to a half inch of rain might be
the average rainfall total for most areas through Tuesday night,
with lower certainty amounts of two to three inches in deeper storms
moving slowly over an area.

Conditions should settle down again Tuesday night with overnight low
temperatures again in the mid 70s under partly cloudy to mostly
clear skies and light east winds. Moisture to the south will again
move up along the coast in the form of coastal streamer showers.

Long term (Wednesday through Monday): weak h5 trough remains
trapped between two main ridges into the upcoming weekend,
keeping some instability in the region. At the surface, southeast
flow begins to increase later in the week as a series of storm
system sweeps across the central plains. The higher wind speeds
will increase the shearing of daytime CU development, which will
have a harder time developing vertically before being sheared
apart. Thus showers will be more isolated in nature, and any that
do form will not remain in one location very long. Forecast
vertical profile shows that moisture becomes more limited to the
lowest atmosphere, with drier capping aloft holding convection
down further. This will start late Thursday and continue through
the weekend. Lesser cloud cover will also allow temperatures to
begin to return to sweltering, reaching the mid to upper 90s over
the weekend.

Marine:
now through Tuesday night: broad high pressure over the north
gulf of mexico will support light to moderate east winds and low
to moderate seas through Tuesday. Slightly higher winds and seas
will develop Tuesday night before southeast winds return on
Wednesday. A weakness in the upper pattern above the west gulf
will support scattered to numerous showers and thunderstorms
through Tuesday night.

Wednesday through Friday: increasing southeast flow between
dominant summertime gulf ridge and storm systems sweeping across
the plains will begin to cause more treacherous waters late in the
week. Southeast winds will increase to near 20 knots by Friday,
causing wave heights to increase from around 3 feet Wednesday to
near 6 feet on Friday.

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
59... Short term
58... Long term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZST2 3 mi49 min ESE 12 G 15 82°F 86°F1012.7 hPa (+0.0)
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi49 min ESE 8.9 G 13 82°F 1014.1 hPa (+0.0)
PTIT2 - 8779770 - Port Isabel, TX 4 mi49 min 82°F 88°F1013.8 hPa (+0.0)
RLIT2 12 mi49 min E 11 G 13 84°F 87°F1013.6 hPa
PMNT2 34 mi49 min 82°F 88°F1014 hPa (+0.4)

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 mi56 minESE 1010.00 miA Few Clouds82°F75°F82%1013.4 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi56 minE 310.00 miFair80°F73°F82%1013.8 hPa

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

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Queen Isabella Causeway (east end)
Click for Map
Mon -- 06:38 AM CDT     Sunrise
Mon -- 08:26 AM CDT     1.25 feet High Tide
Mon -- 09:24 AM CDT     Moonrise
Mon -- 08:24 PM CDT     Sunset
Mon -- 10:56 PM CDT     Moonset
Mon -- 11:55 PM CDT     -0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.5-0.30.10.40.811.21.21.21.21.11.11110.90.80.60.40.1-0.2-0.4-0.6

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Mon -- 06:40 AM CDT     Sunrise
Mon -- 08:22 AM CDT     1.45 feet High Tide
Mon -- 09:26 AM CDT     Moonrise
Mon -- 08:25 PM CDT     Sunset
Mon -- 10:57 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.6-0.4-0.20.20.60.91.21.41.41.41.41.31.21.21.21.21.110.90.60.30-0.2-0.4

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 (23,6,7,8)
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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 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.