Monday, January22, 2018

Marine Weather and Tides
Guadalupe-Guerra, 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 7:43AMSunset 6:43PM Monday January 22, 2018 10:06 AM CST (16:06 UTC) Moonrise 10:24AMMoonset 10:45PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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 Guadalupe-Guerra, TX
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location: 20.87, -105.44     debug

Area Discussion for - Brownsville, TX
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Fxus64 kbro 221150 aaa
area forecast discussion... Updated
national weather service brownsville tx
550 am cst Mon jan 22 2018

Discussion Updated for latest aviation discussion below.

Aviation A weak cold front will move through the area later
this morning, but light winds and a shallow layer of moisture are
allowing areas of fog to develop early this morning. Visibilities
may drop to below 1 mile at times, especially from hrl to mfe. Ifr
to lifr conditions will continue through around 15z before the
cold front moves through and the fog lifts. This afternoon, north
winds will increase with a few strong wind gusts possible. Skies
will clear, however, withVFR conditions expected this afternoon
through the overnight.

Prev discussion issued 441 am cst Mon jan 22 2018
short term (now through Tuesday): a weak cold front is slowly
moving southward into south texas this morning and will move through
deep south texas by mid-morning. A line of convection is firing
along the boundary across southeast texas and the mississippi
valley, but not much luck for precipitation this far south. Much
drier air in the mid-levels and well-displaced upper level support
will limit any shower or thunderstorm activity to 10 to 20% today.

Ahead of it, however, shallow moisture and calming winds prior to
the passage is allowing for areas of fog to develop across the lower
rio grande valley and coastal areas. Dense fog will be possible with
visibilities dropping to below 1 mile at times. Behind the front,
drier northwest flow will dissipate fog fairly quickly with clearing
by this afternoon from northwest to southeast. Not much cold air
will filter in behind the front this afternoon and temperatures are
actually expected to be above normal again today in the mid 70s.

However, much drier air and breezy conditions may lead to an
elevated threat of erratic fire behavior as rh values drop to below
20% in the afternoon for a few hours.

Tonight, drier air will allow temperatures to cool into the mid 40s
across much of the area. No rain is expected and winds will shift to
the northeast as surface high pressure moves into central texas.

Near normal temperatures are expected on Tuesday.

Long term (Tuesday night through Sunday): isolated to scattered
showers continue to be expected through a majority of the period
due to persistent troughiness over the western united states and
the passage of a cold front on Sunday. Significant cloud cover
over the region coupled with the rain chances will maintain near
normal temperatures throughout the period.

Marine (now through Tuesday): ahead of a weak cold front late
tonight, areas of dense fog will be possible over the laguna madre
and along the coastal gulf waters as warm, moist air moves over
relatively cooler water. The front will allow fog to dissipate with
stronger north winds by mid morning. A small craft advisory may be
needed for the offshore waters with winds nearing 20 knots and seas
rising to 5 to 7 feet this afternoon and evening. Conditions will
improve as winds shift to the northeast on Tuesday.

Tuesday night through Sunday: slightly adverse marine conditions
are expected Tuesday night through Saturday night as an enhanced
pressure gradient produces small craft exercise caution seas for a
portion of the gulf of mexico waters. Small craft advisory is more
likely on Sunday due to the passage of a cold front.

Bro watches warnings advisories
Tx... None.

Gm... Dense fog advisory until 9 am cst this morning for gmz150-155.

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

Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of SouthCentralPlains    EDIT

Wind Forecast for Brownsville, TX (11,2,3,4)
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Ground Weather Radar Station Brownsville, TX
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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 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 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.