Thursday, July18, 2019 L-36.com


Marine Weather and Tides
South Point, TX

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:24AMSunset 6:08PM Thursday July 18, 2019 12:36 AM CST (06:36 UTC) Moonrise 8:35PMMoonset 7:37AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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 180541 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
1241 am cdt Thu jul 18 2019

Discussion Updated for latest aviation discussion below.

Aviation Vfr will prevail through the next 24 hours. Light
winds through the remainder of the overnight hours will become
breezy during the daylight hours of Thursday before diminishing
to moderate Thursday evening.

Prev discussion issued 628 pm cdt Wed jul 17 2019
discussion... Updated for latest aviation discussion below.

Aviation... A thunderstorm outflow boundary that was generated
125-150 miles south of bro continues to dissipate as it moves
north, per goes-16 visible satellite imagery, so should not be a
factor at the terminals. Otherwise, high pressure at the surface
and aloft should yield predominantlyVFR conditions, with just a
few low clouds overnight and daytime cumulus streets developing
again on Thursday. Current gusty SE winds drop to 10-12 knots
overnight, then pick back up around 14z and continue through
tomorrow afternoon.

Prev discussion... Issued 227 pm cdt Wed jul 17 2019
short term (tonight through Thursday night): aloft, a broad mid
level ridge lies laterally over the region, with stolid surface
high pressure ridging from the atlantic into and across the
northern gulf to the northwest gulf. There's plenty of sun, broken
up only by the low cumulus streets moving over the southeast
corner of the cwa. Central high plains lower pressure this
afternoon and Thursday afternoon will help maintain a moderate
gradient and breezy southeast winds, though with winds decreasing
at night. Hence, although temperatures will continue slightly
above normal, fairly typical summertime weather will be the rule.

That said, heat index values on Thursday will run 105 to 110
degrees, even though a few spots could briefly move a skosh above
that in mid afternoon. Overnight low temperatures will range in
the 75 to 80 degree range under mostly clear skies and light to
moderate southeast winds.

Long term (Friday through Wednesday): the long term begins with
high pressure still in control for much of the region. Southerly
or southeasterly winds will be somewhat elevated with breezy
conditions expected between high pressure across the northern
gulf and low pressure upstream in N mexico.

The strong high aloft will build across much of the southern tier
us bringing continued hot conditions through early this weekend.

In time, a weakness begins to develop this weekend and early next
week with a trough eventually digging southward across the midwest.

A cold front will begin to slide southward across the southeast
us early next week. Most models show this boundary moving
southward across central texas and even into the central gomex by
the end of the period. With the weakness in the mid
levels and low thicknesses as well as a slight uptick in
pops clouds with the front expect temperatures to be held down to
at least average if not slightly below in some areas.

Marine (tonight through Thursday night): recent obs show small
craft should exercise caution conditions on the laguna madre and
offshore, with fresh southeast winds and some gustiness above 20
kts. The nearshore condition is a bit more uncertain with the lack
of obs, but cool upwelling could be shaving the close to shore
winds down a bit. Wave heights are moderate. Winds should lower
this evening and tonight, with repeat daytime weather developing
on Thursday.

(Friday through Wednesday): the long term will begin with 2 to 4
feet wave heights and cautionary wording winds gusts along the
laguna and 0-20nm near shore waters. Toward the end of the period,
there may be an increase in showers and storms as a cold front
moves into the northern gulf. Confidence is fairly low in the rain
chances later in the period, however, any convection will likely
cause some localized higher winds and seas. As a frontal boundary
drops into the texas later on in the period, winds will subside
leading to mostly favorable marine conditions next week.

Fire weather: through Thursday. Obs around the area show relative
humidity values verifying the ongoing forecast, with no drastically
low values. Conditions will improve tonight with lighter winds and
higher relative humidity values, but the current pattern will
continue on Thursday. Thursday afternoon conditions will therefore
again include 20 ft winds around or a skosh above 15 mph, with
relative humidity values dipping into the 20s for mainly zapata
county, and ongoing dry to critically dry fuels in portions of the
ranchlands and brush country.

Bro watches warnings advisories None.

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


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Weather Map and Satellite Images
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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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Wind Forecast for Brownsville, TX (2,6,7,8)
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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.