Monday, November12, 2018 L-36.com


Marine Weather and Tides
Laguna Vista, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:46AMSunset 5:43PM Monday November 12, 2018 7:30 PM CST (01:30 UTC) Moonrise 11:07AMMoonset 10:00PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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- 343 Pm Cst Mon Nov 12 2018
.gale warning in effect through Tuesday afternoon...
Tonight..North winds 20 to 30 knots becoming 25 to 30 knots after midnight. Gusts up to 40 knots. Rough bay waters building to very rough bay waters after midnight. Scattered rain showers.
Tuesday..Northwest winds 25 to 30 knots becoming 20 to 30 knots in the afternoon. Gusts up to 40 knots until late afternoon. Very rough bay waters subsiding to rough bay waters in the afternoon. Isolated rain showers through the day.
Tuesday night..Northwest winds 15 to 25 knots becoming 15 to 20 knots after midnight. Rough bay waters subsiding to choppy bay waters after midnight.
Wednesday..Northwest winds 15 to 20 knots. Choppy bay waters.
Wednesday night..North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop on the bay after midnight.
Thursday..Northwest winds 5 to 10 knots shifting north in the afternoon. A light chop on the bay.
Thursday night..Southeast winds around 5 knots shifting south after midnight. A light chop on the bay.
Friday..South winds around 5 knots shifting southeast in the afternoon. A light chop on the bay.
Friday night..Southeast winds 5 to 10 knots. A light chop on the bay.
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 on the bay in the afternoon.
Saturday night..Southeast winds 10 to 15 knots becoming east 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop on the bay after midnight. Slight chance of showers.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 343 Pm Cst Mon Nov 12 2018
Synopsis..Hazardous marine conditions are expected to prevail along the lower texas coast tonight and through the middle of the week due to the passage of a strong cold front. Strong winds and rough to dangerous seas are likely during this time period. All mariners are strongly advised to consider the forecast conditions while planning any excursions along the lower texas coast. Much improved winds and seas are anticipated for the second half of this week as surface high pressure becomes more dominant.


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 122336 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
536 pm cst Mon nov 12 2018

Discussion Updated for latest aviation discussion below.

Aviation Increasing winds and lowering cloud decks are expected
through much of the next 24 hours due to the passage of a cold
front. Kbro doppler radar shows light precipitation beginning to
stream northeast out of neighboring mexico, and the hrrr model
suggests this will continue through late Tuesday afternoon. Pure
vfr will be difficult to find through the next 24 hours.

Prev discussion issued 246 pm cst Mon nov 12 2018
short term (tonight through Tuesday night): the highly advertised
strong cold front is currently making it's way through the northern
ranchlands of deep south texas, at least at the time of this
discussion. The front will continue to slide southward through the
afternoon and evening. You will likely know when the front moves
through as winds increase dramatically. Ahead of the front, some
light and scattered drizzle shower activity has developed. We had a
few thundershowers earlier across hidalgo and kenedy counties,
however, much of the convection resides offshore this afternoon.

Overall, models showed some qpf, but nothing to write home about.

For sure the biggest story will be the winds and cool down behind
the frontal boundary. Winds will be the strongest along the coast,
however, as high pressure moves southward even inland locations will
experience gusty conditions. Decided to extend the advisory west for
all of coastal counties and issued sps this am to cover the i69c
corridor. The highest wind gusts without a doubt will be right along
the coast. In fact, padre island may experience some gusts close to
50 mph at times.

With the increase in winds and dramatic drop in temps there comes
some problems with wind chill values. Tuesday am expect most areas
to experience wind chills in the lower 30s, perhaps briefly lower.

This of course brings higher concern for exposure. Temperatures on
Tuesday do not get out of the 40s across the eastern cwfa. That
said, if we are able to clear out the ranchlands may break 50
degrees. Regardless temperatures will remain well below average.

In fact, overnight lows Tuesday night and into Wednesday will be
near freezing for much of the interior.

Long term (Wednesday through Monday): freezing to near freezing
temperatures Wednesday morning will quickly warm into the 40s by mid
morning. Mostly sunny to partly cloudy skies will prevail Wednesday
as surface high pressure settles across deep south texas. High
temperatures Wednesday will be in the 50s with light to moderate
northwest to north winds. The combination of light winds and clear
skies should provide good radiational cooling conditions Wednesday
night. Low temperatures Wednesday night are expected to be about the
same as Tuesday night, with lows in the 30s. Another freeze watch
may be needed for Wednesday night as some locations may drop to
around freezing Thursday morning. Record low temperatures for
Thursday morning at brownsville is 28 degrees and 38 degrees at
mcallen. Also, wind chill values may still reach advisory criteria
for a few hours Thursday morning as winds may remain around 5 mph or
so.

Surface high pressure across the area on Thursday will gradually
move east Friday into Saturday. Temperatures will slowly modify over
time, allowing for a modest warming trend. High temperatures will
generally warm into the 60s on Thursday and the 70s Friday and
Saturday. Moisture will begin to increase and pool across the region
Saturday night as another front pushes south. Reinforcing high
pressure may arrive for next Sunday or Monday.

Marine: (tonight through Tuesday night): conditions are already on
the decline across the marine zones. Buoy 42020 is already hitting
small craft advisory criteria. Given this, decided to go ahead and
start the gale warning now as just up stream gale conditions are
being realized. Gale force winds and very hazardous seas are
expected through Tuesday evening. Can't rule out SCA conditions
continuing through the overnight Tuesday through the end of the
period. Simply put, extremely hazardous boating conditions through
the short term can be expected for both the laguna madre and
adjacent gulf waters of deep south texas.

Wednesday through Saturday: strong north winds and elevated seas
will support small craft advisory conditions on Wednesday. Marine
conditions quickly improve Wednesday night into Thursday as winds
and seas steadily decrease as high pressure spreads over the area.

Bro watches warnings advisories
Tx... Wind advisory until 6 pm cst Tuesday for txz251-254>257-351.

Freeze watch from late Tuesday night through Wednesday morning
for txz248>254-353.

Gm... Gale warning until 6 pm cst Tuesday for gmz130-132-135-150-155-
170-175.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTIT2 - 8779770 - Port Isabel, TX 6 mi36 min NNW 25 G 34 57°F 69°F1019.5 hPa
BZST2 8 mi36 min N 29 G 37 57°F 67°F1019.1 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 8 mi36 min NNW 32 G 39 58°F 1020 hPa
RLIT2 8 mi36 min NNW 27 G 35 57°F 62°F1021.1 hPa
PMNT2 30 mi36 min 55°F 68°F1021.7 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 47 mi36 min 55°F 60°F1021.6 hPa

Wind History for Port Isabel, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Isabel, Port Isabel-Cameron County Airport, TX3 mi37 minNNW 21 G 3010.00 miOvercast and Breezy57°F48°F74%1020.6 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX18 mi37 minNNW 19 G 2710.00 miOvercast and Breezy58°F52°F81%1020.9 hPa
Harlingen, Rio Grande Valley International Airport, TX22 mi38 minN 22 G 2910.00 miOvercast and Breezy56°F48°F75%1021.5 hPa

Wind History from PIL (wind in knots)
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1 day agoNW9NW11NW10NW10NW9NW8NW9NW9NW12NW13NW11NW10NW11NW13NW13NW12NW13NW11NW13NW13W10W8W6SW6
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Tide / Current Tables for Port Isabel, Texas (2)
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Port Isabel
Click for Map
Mon -- 06:45 AM CST     Sunrise
Mon -- 11:06 AM CST     Moonrise
Mon -- 12:09 PM CST     0.15 feet Low Tide
Mon -- 05:40 PM CST     Sunset
Mon -- 10:00 PM CST     Moonset
Mon -- 11:05 PM CST     1.48 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.41.41.41.31.31.21.10.90.60.40.20.20.20.20.40.50.70.91.11.31.41.51.5

Tide / Current Tables for Port Isabel, Texas
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Port Isabel
Click for Map
Mon -- 06:45 AM CST     Sunrise
Mon -- 11:06 AM CST     Moonrise
Mon -- 11:55 AM CST     0.21 feet Low Tide
Mon -- 05:40 PM CST     Sunset
Mon -- 10:00 PM CST     Moonset
Mon -- 10:16 PM CST     1.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.61.51.51.41.31.10.90.70.50.40.30.20.30.40.60.91.11.31.51.61.71.71.7

Weather Map and Satellite Images
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GOES 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.
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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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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.