Wednesday, November22, 2017 L-36.com


Marine Weather and Tides
Rio Hondo, 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 6:54AMSunset 5:40PM Wednesday November 22, 2017 4:56 AM CST (10:56 UTC) Moonrise 10:13AMMoonset 9:12PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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- 412 Am Cst Wed Nov 22 2017
.small craft advisory for winds in effect through this afternoon...
Today..North winds 20 to 25 knots. Rough on the bay. Slight chance of showers and Thunderstorms in the morning.
Tonight..North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Thursday..North winds 10 to 15 knots. A moderate chop on the bay.
Thursday night..North winds 5 to 10 knots becoming northwest after midnight. A light chop on the bay subsiding to smooth after midnight.
Friday..Northwest winds around 5 knots shifting east in the afternoon. Smooth on the bay.
Friday night..South winds 5 to 10 knots. A light chop on the bay.
Saturday..South winds 5 to 10 knots. A light chop on the bay.
Saturday night..Southeast winds 5 to 10 knots becoming east after midnight. A light chop on the bay subsiding to smooth after midnight.
Sunday..Northeast winds 5 to 10 knots. A light chop on the bay.
Sunday night..East winds 5 to 10 knots. A light chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 412 Am Cst Wed Nov 22 2017
Synopsis..Cold front moving through the coastal waters this morning will kick up the winds and seas. Gale warning have been issued with gusts expected to reach gale force this morning and possibly linger into the early afternoon hours. Winds and seas lower this evening but seas may take much of the night to subside. Surface high pressure builds over the coastal waters Thursday with much improved conditions. Very favorable weather is expected Friday and over the weekend as weak surface ridge prevails. A few Thunderstorms, some strong, to remain mainly over the outer waters this morning.

7 Day Forecast for Marine Location Near Rio Hondo, TX
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location: 26.26, -97.53     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 221016
afdbro
area forecast discussion
national weather service brownsville tx
416 am cst Wed nov 22 2017

Cold front currently pushing through south texas...

.Short term (today through Thursday): sharp shortwave trough
axis along the texas coast is beginning to make its right turn
into the gulf waters. As this wave tracks east the cold front,
currently extending from south of zapata to aransas pass to near
galveston, should rapidly surge south through the rgv by or
shortly after sunrise. Isolated to scattered showers and
thunderstorms are noted ahead of the front over the gulf coastal
waters but nothing is noted over land. Main large scale lifting
and main divergence region is over the NW gulf with large scale
subsidence noted just behind the mid level trough. Not expecting
much in the way of rain or convection impacting inland areas but
did leave in slight chances across the the lower valley and
coastal region this morning along the sharp demarcation line
between the subsidence and frontal forcing.

Some patchy low clouds are forming along the front and model
soundings suggest low clouds to increase in wake of the front
as the cold advection increases. Models indicate clouds to stick
around through mid afternoon but believe sufficient mixing of very
dry air should allow for the lower clouds to break sooner.

Temperatures to fall through the morning before recovering this
afternoon with the Sun breaking through. Winds increase
significantly through the morning as the pressure gradient
strengthens between surface high over the southern plains and a
develop low over the central gulf. Gusts 25 to 35 mph are possible
from the mid valley to the coast.

Winds quickly decouple this evening and with clear skies
temperatures plummet into the 40s for all areas except the
immediate coast where 50s should prevail.

Surface high pressure becomes centered over the CWA thanksgiving
day making for a perfect day to gives thanks for. Clear and
chilly in the morning gives way to a sunny bright and cool to mild
day as highs range from the upper 60s to lower 70s. Can not ask
for anything better. Enjoy.

.Long term (Thursday night through Tuesday):
long term begins with a very tranquil northwesterly flow across
the region. Surface high pressure will be in control for the most
part through the thanksgiving black Friday weekend. At the
surface, as high pressure begins to settle east of our region,
surface winds will begin to transition to a southerly and
southeasterly direction, which will allow for an increase in low
level moisture. This should keep overnight lows slightly warmer
each night and daytimes highs will also inch slightly higher,
especially early next week as an upper level ridge pushes
eastward. Another frontal boundary will begin to enter the picture
toward midweek next week. In summary, mild average temperatures
expected in the long term with a slightly above average expected
early next week.

.Marine:
(now through Thursday): pressure gradient to strengthen this
morning in wake of a cold front. 1030mb high over the southern
plains to combine with 1012mb low east of the coastal waters
producing strong surface winds today. Winds to increase quickly
behind the front that should be moving through the coastal waters
between 6-9am. Conditions appear favorable for frequent gale force
gusts as 35-40 knots winds at around 3000-4000 feet mix to the
surface. Gale warnings have been posted for the gulf waters through
3 pm but could be trimmed back in areal coverage and time as the
main upper support quickly moves east. Seas should quickly respond
and should approach 10 feet in the outer waters. As winds begin to
diminish seas to lower but might take through the evening to drop
below 7 feet so small craft advisories continue once the threat of
gales end. High pressure settles over the rgv thanksgiving day with
marine conditoins becoming very favorable by the afternoon.

(Thursday night through Tuesday): high pressure will be in control
for much of the period. With weak pressure gradient and lack of
swells, weather related marine hazards are not expected from late
thanksgiving day through Sunday. Early next week the pressure
gradient will begin to tighten again between a strong low pressure
system develops over the central plains. This will likely cause at
least an uptick in winds and seas to round out this cycle.

Preliminary point temps pops
Bayview port isabel 69 50 68 47 20 0 0 0
brownsville 69 49 72 50 20 0 0 0
harlingen 69 46 71 46 10 0 0 0
mcallen 71 47 73 48 10 0 0 0
rio grande city 70 43 74 45 0 0 0 0
south padre island 69 57 67 57 20 0 0 0

Bro watches warnings advisories
Tx... None.

Gm... Small craft advisory for winds until 6 pm cst this evening for
gmz130-132-135.

Small craft advisory from 3 pm this afternoon to midnight cst
tonight for gmz150-155-170-175.

Gale warning until 3 pm cst this afternoon for gmz150-155-170-
175.

This product is also available on the web at:
http: weather.Gov rgv
59 55 62


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RLIT2 13 mi38 min NNW 20 G 26 67°F 73°F1016.7 hPa
PMNT2 21 mi38 min 64°F 71°F1017.3 hPa
PTIT2 - 8779770 - Port Isabel, TX 22 mi38 min NNW 21 G 29 68°F 75°F1015.7 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 23 mi38 min NNW 24 G 30 69°F 1016.3 hPa
BZST2 24 mi44 min NNW 22 G 28 68°F 1015.1 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 38 mi38 min N 20 G 25 66°F 66°F1017 hPa

Wind History for Port Isabel, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX8 mi64 minNNW 1710.00 miMostly Cloudy65°F63°F93%1016.7 hPa
Port Isabel, Port Isabel-Cameron County Airport, TX12 mi63 minNNW 159.00 miOvercast67°F66°F97%1016.1 hPa
Weslaco, Mid Valley Airport, TX24 mi61 minN 11 G 1610.00 miFair63°F56°F80%1017.6 hPa

Wind History from HRL (wind in knots)
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Last 24hrCalmN3CalmCalmCalmS4S11S12SW14SW14SW10W7W4NW6NW5SE4CalmN4N6NW7NW7NW7N13N17
1 day agoN4N6N6N7NW3NW5N7N5N9N9N7N7N6N6NE3NE3CalmNW3CalmNW3W4CalmW3W3
2 days agoN15N14N14N14N17N18
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N14N12N9N6N6NW5NW5N5N3N5NW5N5N5

Tide / Current Tables for Port Isabel, Texas
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Port Isabel
Click for Map
Wed -- 06:52 AM CST     Sunrise
Wed -- 10:11 AM CST     Moonrise
Wed -- 11:10 AM CST     0.13 feet Low Tide
Wed -- 05:37 PM CST     Sunset
Wed -- 09:03 PM CST     1.61 feet High Tide
Wed -- 09:11 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.51.41.31.21.10.90.70.50.30.20.10.20.30.50.711.21.41.51.61.61.61.6

Tide / Current Tables for Queen Isabella Causeway (west end), Texas
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Queen Isabella Causeway (west end)
Click for Map
Wed -- 06:52 AM CST     Sunrise
Wed -- 10:11 AM CST     Moonrise
Wed -- 10:54 AM CST     0.15 feet Low Tide
Wed -- 05:37 PM CST     Sunset
Wed -- 09:11 PM CST     Moonset
Wed -- 09:14 PM CST     1.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.41.31.21.110.80.60.40.30.20.20.20.30.50.70.91.11.31.51.51.61.51.5

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 (5,6,7,8)
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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.