Monday, May21, 2018 L-36.com


Marine Weather and Tides
South Padre Island, TX

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:39AMSunset 8:13PM Monday May 21, 2018 9:07 PM CDT (02:07 UTC) Moonrise 11:55AMMoonset 12:30AM Illumination 47% Phase: First Quarter Moon; Moon at 7 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 Mon May 21 2018
Tonight..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Tuesday..Southeast winds 5 to 10 knots becoming east 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 isolated Thunderstorms in the morning.
Tuesday night..Southeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Wednesday..Southeast winds 5 to 10 knots becoming east 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.
Wednesday night..Southeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Thursday..East winds 5 to 10 knots. A light chop on the bay.
Thursday night..East winds 5 to 10 knots becoming southeast after midnight. A light chop on the bay subsiding to smooth after midnight.
Friday..Southeast winds 5 to 10 knots shifting east in the afternoon. A light chop on the bay.
Friday night..Southeast winds 5 to 10 knots becoming south after midnight. A light chop on the bay subsiding to smooth after midnight.
Saturday..South winds around 5 knots becoming east in the afternoon. Smooth on the bay building to a light chop in the afternoon.
Saturday night..Southeast winds 5 to 10 knots shifting south after midnight. A light chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 351 Pm Cdt Mon May 21 2018
Synopsis..Weak high pressure becomes reestablished over the gulf the through the work week with light to moderate southeast winds and a slight sea. There are some indications that a possible tropical low pressure area may form and move over the northcentral gulf next weekend interrupting the southeast winds and potentially producing an increasing swell.

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 212340 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
640 pm cdt Mon may 21 2018

Discussion Updated for latest aviation discussion below.

Aviation Drier air has worked into the region in wake of the
thunderstorm complex this morning.VFR conditions to prevail the
next 24 hours with low probability of a short duration of MVFR
visibility if ground fog develops around sunrise Tuesday. Wet
ground, clear skies and light winds could allow for patches of
light fog to form over the air fields. Light southeast winds
expected Tuesday with weak high pressure over the gulf of mexico.

Prev discussion issued 357 pm cdt Mon may 21 2018
short term (tonight through Tuesday night): after some much
needed rainfall, skies have cleared across much of the region
this afternoon. Along with sky conditions, temperatures and winds
have been tricky behind a wake low and MCV that pushed through the
region this morning. In fact, some winds with the wake low gusted
into the 35-40mph range for a very brief time. Winds continue to
be out of the northwest allowing for surface moisture return to be
slow. Additionally, satellite analysis shows a few low level cu
developing across the northern ranchlands.

All signs point to lower rain chances, so brought down pops this
afternoon evening just a bit. Overnight clouds will increase just a
bit, however, the best rain chances will reside right along the
coastline through early Tuesday. Overall, temperatures will remain
mild through the short term and and gradually drier conditions will
work back into the forecast by late Tuesday shutting off the rain
chances.

Long term (Wednesday through Monday): a steady progression of 500
mb closed lows moving over the west coast and the rocky mountain
states will combine to induce a persistent ridge axis over the rgv
and northern mexico throughout the long term period. This will
maintain a generally hot and stable atms in place over the region
through day 7 resulting in near to above average temps for the
region. The GFS and ECMWF guidance are in generally good agreement
in the handling of these features over the lower 48 states.

However the ECMWF is coming in a little warmer versus the GFS max
and min temps. Will lean closer to the ECMWF numbers for the
moment for MAX temps. Will opt for a model blend for min temps.

Nhc continues to monitor a weak surface trough in the NW carib
sea for some possible slow development over the next 5 days. Both
the GFS and ECMWF maintain a general northward movement of this
feature throughout the current work week potentially affecting the
eastern half of the gulf of mexico. This will limit any potential
marine tropical affects to the lower tx coastline over the next
several days. Stay tuned to the latest statements and outlooks
from NHC concerning the progress of this system.

Marine (tonight through Tuesday night): rather benign marine
conditions expected through the short term. Winds may approach the
15kt or so with wave heights around 4 to 5 feet generally,
especially for the nearshore waters. Can't rule out a shower or
storm especially this evening through early Thursday.

Wednesday through Saturday night: broad surface ridging over the
gulf of mex will likely maintain pretty low winds and seas along
the lower tx coastline. The lower tx coastline then may see the
surface wind flow shift around to a more e-ne direction later this
week. This will be highly dependent on the overall track and level
of development that may occur with the broad surface trough that
nhc continues monitoring in the NW carib. At this time no sca
conditions are expected along the lower tx coastline through sat.

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
59... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZST2 3 mi56 min ESE 11 G 13 78°F 86°F1011.4 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi50 min ESE 9.9 G 12 78°F 1012.9 hPa
PTIT2 - 8779770 - Port Isabel, TX 4 mi50 min ESE 5.1 G 11 79°F 81°F1012.5 hPa
RLIT2 12 mi56 min ESE 14 G 17 82°F 79°F1012.1 hPa
PMNT2 34 mi50 min 82°F 83°F1012.1 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 mi75 minESE 1210.00 miFair82°F69°F65%1011.9 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi75 minESE 810.00 miFair83°F70°F65%1012.1 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
Mon -- 01:30 AM CDT     Moonset
Mon -- 02:10 AM CDT     -0.27 feet Low Tide
Mon -- 06:39 AM CDT     Sunrise
Mon -- 11:35 AM CDT     1.37 feet High Tide
Mon -- 12:55 PM CDT     Moonrise
Mon -- 08:11 PM CDT     Sunset
Mon -- 10:50 PM CDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.2-0.3-0.2-0.10.10.40.60.91.11.31.41.41.31.21.11.110.90.90.80.70.60.5

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Mon -- 01:31 AM CDT     Moonset
Mon -- 02:20 AM CDT     -0.36 feet Low Tide
Mon -- 06:41 AM CDT     Sunrise
Mon -- 11:46 AM CDT     1.27 feet High Tide
Mon -- 12:56 PM CDT     Moonrise
Mon -- 08:12 PM CDT     Sunset
Mon -- 10:50 PM CDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.3-0.3-0.3-0.2-00.20.50.811.21.21.31.21.1110.90.80.80.80.70.60.4

Weather Map and Satellite Images
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wmap_A
GOES 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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Brownsville, TX (22,6,7,8)
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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.