Monday, March18, 2019 L-36.com


Marine Weather and Tides
South Point, 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 5:44AMSunset 5:52PM Monday March 18, 2019 7:27 PM CST (01:27 UTC) Moonrise 4:37PMMoonset 4:36AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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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7 Day Forecast for Marine Location Near South Point , TX
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location: 12.21, -97.29     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 182347 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
647 pm cdt Mon mar 18 2019

Discussion Will let coastal flood statement expire as scheduled
at 7 pm. Webcams at south padre island indicated that water was
not washing up to the dunes, even at normally narrower spots on
the beach, around high tide at 4:03 pm. Tidal gauges also show
slightly lower readings vs. 24 hours ago. While these readings
are still running nearly 1 foot above predicted levels, tomorrow
afternoon's high tide is predicted to be lower than those of the
past several days. Another complicating factor is the easterly
swell that is expected to reach the coast late tonight or early
tomorrow morning. So, while tidal overwash to near the dune line
may return tomorrow afternoon, the current episode appears to be
winding down.

Discussion Updated for latest aviation discussion below.

Aviation Area of light rain apparent on kbro radar should move
east of all the aerodromes by 01-02z. Thereafter, stubborn coastal
trough will continue to dominate the weather over the next 24
hours. Light northerly winds andVFR ceilings should continue
overnight. By mid-day Tuesday, the trough axis is progged to move
inland, shifting winds to NE and lowering cig's to MVFR, as well
as increasing precip coverage due to convergence associated with
the trough.

Prev discussion issued 242 pm cdt Mon mar 18 2019
short term (tonight through Tuesday night): skies are overcast
with light, low level north winds under more southwesterly flow
aloft. There was an elevated inversion base at bro this morning
around 4 kft, and a few light showers continue to drift across the
cwa from west to east this afternoon, mainly in the saturated
lower portion of the inversion. A trough of low pressure lies
offshore, and moisture continues to funnel north along the trough
axis.

Light rain chances will continue through the short term as the
coastal trough remains largely in place and the upper pattern
remains rather zonal. Subtle dips in the 500 mb pattern may provide
weak enhancement of rain chances, though timing remains tricky.

Showers may increase a little in coverage for the lower valley
tonight as one of these weak pulses moves overhead. Temperatures
will be below normal for this time of year. Look for 50s and some
60s overnight, and mid to upper 60s Tuesday during the day.

Otherwise, the cloud, cool weather with spotty light showers will
continue through the next 36 hours.

Long term (Wednesday through Monday): highly amplified pattern
sets up for the latter half of the week, with large trough diving
along the east coast, and another trough ejecting into the four
corners region. This leaves texas in ridging between, so active
weather will be minimized. There is a little isentropic lift
trying to set up Wednesday and Thursday, so the latter half of the
week will still see cloudy skies and light precipitation.

Friday and Saturday the western trough moves eastward into the
central plains. This will bring better diffluence aloft, along
with more scattered vorts embedded in the southern edge of the
trough. This will lead to a better chance for showers and
thunderstorms, vs. The gray and drizzly pattern before it. While
the midlevel energy will be present, the lack of a surface forcing
mechanism will limit the chances for organized convection, so
shower activity Friday and Saturday will be scattered, with better
chances to the north closer to the main part of the trough.

Sunday the leading edge of the trough will be moving north, lack
of midlevel support will lower rain chances. Models have continued
to back away from the next frontal passage, and are now waiting
for the trailing lobe of the larger-scale trough to swing around
into texas Sunday night, driving the dryline southeastward on
Monday. Still low confidence on it getting to south texas, but if
this pattern holds out, it would bring light south to southwest
flow to the valley, which would push temperatures well into the
90s a week from now.

Marine:
now through Tuesday night: coastal troughing will remain in place
through Tuesday night, supporting moderate northeast to east
winds. A long gulf fetch will provide a swell contribution,
resulting in elevated gulf wave heights. Small craft should
exercise caution to low end small craft advisory conditions will
be possible on the gulf tonight through Tuesday night.

Wednesday through Saturday: for the remainder of the week, winds
will remain nearly easterly with high pressure across the lower
mississippi valley. Winds would remain around 10 knots, but the
long fetch would continue to press long period swells up against
the coast. Southeast flow would finally reestablish Friday night
into Saturday as the high moves east and low pressure tries to
form in the panhandle. Winds would likely remain at or below 15
knots, as the panhandle low has trouble organizing to start.

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
53-schroeder 52


Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Brownsville, TX (21,6,7,8)
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Ground Weather Radar Station Brownsville, TX
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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.