Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Matagorda, 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 6:56AMSunset 6:18PM Wednesday February 20, 2019 9:48 AM CST (15:48 UTC) Moonrise 7:44PMMoonset 7:53AM 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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GMZ350 Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm- 315 Am Cst Wed Feb 20 2019
.small craft should exercise caution...
Today..North winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet. A slight chance of showers in the morning.
Tonight..Northeast winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Seas 2 to 4 feet. A chance of showers.
Thursday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and isolated Thunderstorms.
Thursday night..Northeast winds 10 to 15 knots becoming east 5 to 10 knots after midnight. Seas 2 to 4 feet. A chance of showers and isolated Thunderstorms.
Friday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and isolated Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Patchy fog. A slight chance of showers.
Saturday..Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots in the afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet. Patchy fog in the morning. A chance of showers and isolated Thunderstorms.
Saturday night..Northwest winds 5 to 10 knots becoming north 10 to 15 knots after midnight. Seas 3 to 4 feet.
Sunday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Sunday night..East winds 10 to 15 knots. Seas 3 to 5 feet. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 315 Am Cst Wed Feb 20 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Northwest to north winds will prevail today in the wake of a cold front. Winds will veer to the northeast on Thursday as another coastal low develops off the south texas coast. Chances of fog return as early as Thursday night and will linger on through Saturday afternoon.


7 Day Forecast for Marine Location Near Matagorda, TX
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location: 28.69, -95.88     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 201248
afdhgx
area forecast discussion
national weather service houston galveston tx
648 am cst Wed feb 20 2019

Update
Increased pops QPF for the next two hours to represent lingering
showers south of i-10. Near term temperature forecast was
adjusted slightly to best represent current observed temperatures.

The rest of the forecast remains unchanged. 24

Prev discussion issued 554 am cst Wed feb 20 2019
aviation...

ifr conditions will persist early this morning but clouds will
begin to break up by mid morning as high pressure settles over
central texas and drier air works into the region.VFR conditions
are expected this afternoon into tonight. Another area of low
pressure and an associated warm front will approach the area on
Thursday. Ceilings will begin to lower near the coast after 06z
with a mix of MVFR ifr ceilings after 09z possible at coastal taf
sites. Have also introduced some showers near the coast between
09-12z Thursday. 43
prev discussion... Issued 502 am cst Wed feb 20 2019
discussion...

overcast skies and lingering light showers prevailed particularly
across the central and southern portions of the forecast area as
a cold front moved across the region overnight and early this
morning.

Area of high pressure and drier air will move into the the area
during the morning and afternoon hours, limiting shower activity.

However, model guidance shows low level moisture returning to the
region this evening as the high pressure quickly moves
northeastward and another surface low pressure develops over the
western gulf of mexico. Expect shower activity to return across
the gulf waters and coastal regions tonight expanding further
inland overnight.

The surface low is expected to move towards the lower tx coast
overnight. Ahead of the low, associated warm front will gradually
move northward and into the local waters Thursday afternoon and
then inland Thursday night through Friday morning, increasing low
level moisture and instability. This will ramp up shower and
thunderstorm development across SE tx. Moreover, another upper
level trough will build across the rockies Thursday night though
Friday. As the surface low moves further northward, southerly flow
will continue to transport warm moist air across the region
Friday afternoon through early Saturday morning, maintaining the
wet and unstable weather pattern. The cold front associated to the
upper level trough will then move across SE tx Saturday
morning afternoon with drier air trailing behind it and
encompassing the local area Saturday evening night. By Monday and
Tuesday, low level moisture will once again increase, as another
surface low pressure moves across the lower tx coast and into the
local coastal waters. Expect another round of showers Monday and
Tuesday.

High temperatures will be mainly between the low to upper 60s
except Friday and Saturday were highs will range between the upper
60s to the mid 70s due to the warm moist air mass in place. Low
temperatures should range between the low 40s to upper 50s
everyday expect Friday night were lows will be up in the low to
upper 60s. Also, due to surface lows and upper level troughs
moving in and out of the region, wind direction and speed will
continue to fluctuate throughout the forecast period. 24
marine...

northwest to north winds will increase early this morning as low
pressure over arkansas moves NE and weak high pressure builds into
central texas. A scec has been issued for the gulf waters this
morning but winds are expected to decrease quickly this afternoon as
this area of high pressure moves toward the western gulf. Winds will
veer to the NE tonight as the high drifts further east and another
area of low pressure develops off the south texas coast. This area
of low pressure will move north and bring a warm front toward the
coast on Thursday.

Winds will continue to veer to the SE late Thursday and Friday as
the low tracks inland across texas. Warm and moist air flowing over
the cooler shelf waters will likely yield areas of sea fog possibly
as early as Thursday night but more likely Fri sat. The next cold
front is expected to cross the coastal waters late Saturday. This
should end the fog threat as a weak offshore flow develops. Winds
will veer to the e-ne next Sun Mon and a fairly stout and persistent
east wind will prevail for about 24-36 hours. Tide levels could
again exceed 3.0 feet along the bolivar peninsula. 43

Preliminary point temps pops
College station (cll) 62 43 57 52 70 0 20 40 50 70
houston (iah) 65 49 58 55 75 20 40 70 60 70
galveston (gls) 63 56 64 61 71 40 60 70 50 40

Hgx watches warnings advisories
Tx... None.

Gm... Small craft should exercise caution until 11 am cst this morning
for the following zones: coastal waters from freeport to
matagorda ship channel tx out 20 nm... Coastal waters from
high island to freeport tx out 20 nm... Waters from freeport
to matagorda ship channel tx from 20 to 60 nm... Waters from
high island to freeport tx from 20 to 60 nm.

Discussion... 24


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EMAT2 2 mi30 min NNW 13 G 21 46°F 53°F1015.9 hPa
SGNT2 15 mi30 min NNW 8.9 G 15 48°F 56°F1015.6 hPa
KBQX 29 mi13 min N 17 G 22 50°F 46°F
MBET2 30 mi36 min N 18 G 21 48°F 64°F1015.2 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 32 mi36 min NNW 16 G 19 47°F 53°F1016.6 hPa
FCGT2 - 8772447 - USCG Freeport, TX 35 mi30 min N 9.9 G 13 48°F 56°F1016.3 hPa
FPST2 35 mi30 min NNW 13 G 17 48°F 56°F1015.5 hPa
VCAT2 39 mi30 min N 12 G 15 46°F 54°F1017 hPa
LUIT2 48 mi30 min N 14 G 18 49°F 1015.7 hPa
SDRT2 - 8773037 - Seadrift, TX 48 mi36 min NNW 11 G 15 47°F 56°F1017.2 hPa

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX20 mi55 minN 1410.00 miOvercast48°F46°F93%1016.4 hPa
Bay City, Bay City Municipal Airport, TX20 mi53 minN 910.00 miOvercast47°F44°F92%1016.3 hPa

Wind History from BYY (wind in knots)
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Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Wed -- 02:44 AM CST     0.53 feet High Tide
Wed -- 06:59 AM CST     Sunrise
Wed -- 07:54 AM CST     Moonset
Wed -- 12:35 PM CST     -0.44 feet Low Tide
Wed -- 06:19 PM CST     Sunset
Wed -- 07:46 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.50.50.50.50.50.40.20.1-0.1-0.3-0.4-0.4-0.4-0.4-0.3-0.2-00.10.20.20.30.30.3

Tide / Current Tables for Pass Cavallo, Texas
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Pass Cavallo
Click for Map
Wed -- 03:20 AM CST     1.09 feet High Tide
Wed -- 06:59 AM CST     Sunrise
Wed -- 07:54 AM CST     Moonset
Wed -- 09:17 AM CST     -0.64 feet Low Tide
Wed -- 05:52 PM CST     1.00 feet High Tide
Wed -- 06:19 PM CST     Sunset
Wed -- 07:46 PM CST     Moonrise
Wed -- 09:36 PM CST     0.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.911.11.10.80.4-0.1-0.4-0.6-0.6-0.5-0.300.30.60.8110.90.60.50.40.5

Weather Map and Satellite Images
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GOES Local Image of    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 Houston/Galveston, TX (10,2,3,4)
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Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current


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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 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.