Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Port Mansfield, 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 7:17AMSunset 6:08PM Wednesday January 23, 2019 5:04 AM CST (11:04 UTC) Moonrise 9:08PMMoonset 9:25AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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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GMZ132 Expires:201901231530;;793075 Fzus54 Kbro 230940 Cwfbro Coastal Waters Forecast National Weather Service Brownsville Tx 340 Am Cst Wed Jan 23 2019 Lower Texas Coastal Waters From Baffin Bay To The Mouth Of The Rio Grande Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz130-132-135-231530- 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- 340 Am Cst Wed Jan 23 2019
.gale warning in effect until noon cst today...
.small craft advisory for winds in effect from noon cst today through this afternoon...
Today..North winds 25 to 35 knots becoming northwest 20 to 25 knots in the afternoon. Very rough on the bay subsiding to rough in the afternoon. Chance of rain showers in the morning.
Tonight..North winds 15 to 20 knots diminishing to 5 to 10 knots after midnight. Choppy on the bay subsiding to a light chop after midnight.
Thursday..South winds around 5 knots becoming southeast in the afternoon. Smooth on the bay building to a light chop in the afternoon.
Thursday night..East winds 5 to 10 knots. A light chop on the bay.
Friday..East winds 5 to 10 knots. A light chop on the bay.
Friday night..Southeast winds 5 to 10 knots. A light chop on the bay.
Saturday..Southeast winds 10 to 15 knots. A moderate chop on the bay. Chance of showers.
Saturday night..East winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. A light chop on the bay building to a moderate chop after midnight. Showers likely and isolated Thunderstorms.
Sunday..North winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon. Choppy on the bay subsiding to a moderate chop in the afternoon. Slight chance of showers and isolated Thunderstorms.
Sunday night..East winds 5 to 10 knots becoming southeast after midnight. A light chop on the bay subsiding to smooth after midnight.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 340 Am Cst Wed Jan 23 2019
Synopsis..Dangerous marine conditions are expected along the lower texas coast through this afternoon due to the approach and passage of a strong cold front early this morning. Mariners are urged to take the forecast conditions into account while planning excursions along the lower texas coast through the next 24 to 36 hours and should consider remaining in port during that time. The winds and seas will improve from Wednesday night throughout the end of the work week and into the first half of the weekend, as high pressure prevails. The approach and passage of another front will create additional adverse marine conditions for the second half of the weekend.


7 Day Forecast for Marine Location Near Port Mansfield, TX
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location: 26.54, -97.4     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 231041
afdbro
area forecast discussion
national weather service brownsville tx
441 am cst Wed jan 23 2019
.Short term (today through Thursday): a cold front advances through
deep south texas this morning as a mid-level trough settles eastward
across the conus. A pre-frontal trough of low pressure out ahead of
the cold front has allowed widely scattered light rain to work into
a few western and northwestern zones overnight. Expect rain chances
to pick up slightly across the northern ranchlands and coastal
counties as the front pushes through, likely drying out from west to
east with the frontal passage. Any rainfall looks to remain light.

The flip side of strong southerly winds yesterday turns northerly
behind the front into the early afternoon hours, with a short fused
wind advisory now in effect across coastal counties. Advisory will
likely need to be trimmed to immediate coast near mid morning, with
strongest winds remaining along the shoreline and offshore.

Dewpoints behind the front drop into the 20s and 30s, creating an
elevated concern for erratic fire behavior or wildfire growth until
winds begin to decrease later this afternoon into this evening. A
rangeland fire discussion has been issued for all of inland deep
south texas into this afternoon. Burning of any kind should be
avoided.

Temperatures prior to the front in the low 70s will fall into the
low and mid 50s by mid to late morning. Afternoon high temperatures
rebound into the upper 50s in the ranchlands and possibly low 60s in
the rgv. With clearing skies and calming winds, evening and
overnight temperatures will drop steadily into the 30s across the
board. Traditionally cooler spots, like zapata and armstrong, could
even dip toward freezing overnight for a short period. Abundant
sunshine with more zonal flow aloft and southeasterly surface winds
will allow Thursday highs to approach the upper 60s and low 70s.

.Long term (Thursday night through Tuesday): a very large and deep
500 mb trough axis will remain carved out over most of the lower
48 states from late thurs into the upcoming weekend. Several weak
vortices will rotate around the base of this trough axis
throughout late Fri early sat. This will maintain overall temps
close to late january climo for the rgv with pretty limited
moisture levels persisting through Fri night. An onshore low level
flow will then push the atms moisture levels back up throughout
the day Sat as a stronger 500 mb trough axis digs across the
desert SW tx and northern mexico Sat and sun. The appoach and
passage of the short wave will increase the PVA over the region.

In addition, the passage of this trough will enhance some coastal
surface troffing along the lower tx coastline late Sat Sun which
will boost up the conv chcs during the weekend. This 500 mb
troough axis will push offshore of the deep south tx coastline
late Sun which will shut down the coastal surface troffing and
will shift the better moisture values offshore. A series of 500 mb
short waves will then dig into the central plains states late
mon early tues of next week. This will push a pretty strong but
dry cold front through the region Mon night resulting in
increasing CAA tues wed.

Both the ECMWF and GFS 500 mb fields are in pretty good agreement
through day 7 8 so overall confidence in the longer range forecast
wording is above average. The gfs ECMWF forecast temps are in
good agreement through day 7. The longer range forecast pops
differ a bit in overall timing for Sat Sun with the ECMWF holding
onto the pops into Sun a bit longer than the gfs.

.Marine (now through Thursday): cold front sweeps through the
coastal waters by mid morning with strong northerly winds in tow.

Gale force winds and gusts are expected into this afternoon, with
gale warnings in effect until noon for the laguna madre and 6 pm for
all gulf of mexico waters. A small craft advisory for winds is in
effect for the laguna madre this afternoon. Winds and seas begin to
improve this evening and tonight, with small craft hazards likely
continuing for gulf of mexico waters. Thursday will see continued
improvement as much lighter winds begin to shift southerly once
again.

Thursday night through Sunday night: surface ridging over the gulf
coast region will maintain a light to moderate onshore flow
pattern through sat. The strengthening surface coastal troffing
expected this weekend may push the winds and seas up close to sca
levels from late Sat into sun.

Fire weather Have issued a rangeland fire discussion concerning
potential erratic fire behavior and wildfire growth late this
morning into this afternoon. Winds at 20 feet behind the front
increase and persist at 15 to 20 mph into this afternoon while
relative humidity values drop into the 20s across much of deep south
texas. Any rainfall overnight or with the front have been very light
and would have little effect on cured fuels. Winds continue to
diminish into this afternoon, effectively ending any fire weather
headlines, while more dry air filters into the region. Light winds
are expected on Thursday as well, with continued dry air. Red flag
warning criteria will likely not be met today and unlikely for
Thursday. Burning of any kind is strongly discouraged.

Preliminary point temps pops
Bayview port isabel 61 41 67 51 40 10 0 0
brownsville 62 39 69 50 40 0 0 0
harlingen 62 37 70 48 30 0 0 0
mcallen 66 41 71 47 20 0 0 0
rio grande city 64 38 71 44 10 0 0 0
south padre island 61 45 65 56 40 10 0 0

Bro watches warnings advisories
Tx... Wind advisory until noon cst today for txz251-254>257-351.

Gm... Small craft advisory for winds from noon today to 6 pm cst this
evening for gmz130-132-135.

Gale warning until noon cst today for gmz130-132-135.

Small craft advisory until 4 am cst early this morning for
gmz150-155-170-175.

Gale warning until 6 pm cst this evening for gmz150-155-170-175.

This product is also available on the web at:
http: weather.Gov rgv
short term aviation... 56
long term... 60
graphicast upper air... 69


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMNT2 2 mi47 min 54°F 66°F1014.4 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 18 mi53 min 52°F 65°F1014.4 hPa
RLIT2 20 mi53 min NW 2.9 G 2.9 67°F 67°F1011.7 hPa
BZST2 35 mi53 min S 2.9 G 5.1 65°F 64°F1010.7 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 35 mi53 min E 2.9 G 4.1 65°F 1011.8 hPa
PTIT2 - 8779770 - Port Isabel, TX 35 mi53 min SW 2.9 G 5.1 66°F 63°F1011.5 hPa
42020 - Corpus Christi, TX 50NM Southeast of Corpus Christi, TX 48 mi35 min N 31 G 39 59°F 69°F1013.4 hPa59°F

Wind History for Rincon Del San Jose, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX26 mi73 minNW 30 G 3910.00 miOvercast and Windy66°F62°F87%1012.5 hPa

Wind History from HRL (wind in knots)
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Last 24hrS25
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1 day agoE6E6E5SE6SE15
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2 days agoN13N10NW8N7NW7N743N7NW3--E9E8E9E5E6E7SE7SE5SE3E6SE8SE5SE4

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Queen Isabella Causeway (west end), Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
Link to Loop

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