Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Palacios, TX

Version 3.4
What's New / NOTES
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 6:25AMSunset 8:16PM Thursday May 25, 2017 1:14 PM CDT (18:14 UTC) Moonrise 5:33AMMoonset 7:17PM Illumination 0% Phase: New Moon; Moon at 0 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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GMZ330 Matagorda Bay-galveston Bay- 1018 Am Cdt Thu May 25 2017
.small craft should exercise caution...
Rest of today..South winds 15 to 20 knots. Bay waters choppy.
Tonight..South winds 15 to 20 knots. Bay waters choppy.
Friday..South winds 15 to 20 knots. Bay waters choppy.
Friday night..South winds around 15 knots. Bay waters slightly choppy to choppy.
Saturday..South winds around 15 knots. Bay waters slightly choppy to choppy.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A chance of showers and Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..East winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1018 Am Cdt Thu May 25 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore winds will quickly strengthen during the day today. Moderate onshore winds and slightly elevated seas can be expected through the upcoming memorial day weekend.

7 Day Forecast for Marine Location Near Palacios, TX
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location: 28.69, -96.39     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 251714
afdhgx
area forecast discussion
national weather service houston galveston tx
1214 pm cdt Thu may 25 2017

Aviation
Vfr conds expected through 06z. MVFR CIGS expected to develop as
low level moisture increases beneath a strong capping inversion.

Hrrr is showing ifr CIGS developing west of houston by 08z.

Confidence is low with regard to ifr development. Fcst soundings
keep MVFR CIGS in place for much of Friday with CIGS mixing out
between 18-20z. Winds will remain gusty this afternoon and drop
slightly overnight but never fully decouple with gusty winds
expected again on Friday. 43

Prev discussion issued 1102 am cdt Thu may 25 2017
update...

another gorgeous morning under sunny skies and a brisk southwest
to south wind, upper 70 regional temperatures. Moisture will
return through the day, increasing cloudiness from the west during
the overnight early Friday morning hours. Increased cloud cover
and winds staying up at around 10 mph should provide enough
insulation and mixing, respectively, to regulate Friday mints to
the lower to middle 70s. Very low rain chances Saturday will begin
to reach chance categories Sunday. The target window for the area
receiving rainfall will be from Sunday evening through memorial
day. A shortwave trough passage with the best upper level support
occurs early Monday. As of now, QPF values are low with the
highest QPF of around half of an inch to an inch being focused
across the northern third of the CWA through early Tuesday. A
slow-moving surface boundary sagging into a southeastern texas
near 2 inch pwat air mass Monday is certainly a situation that
needs to be monitored for the potential for high rainfall going
into the weekend. 31
prev discussion... Issued 439 am cdt Thu may 25 2017
discussion...

cool quiet conditions across SE tx this morning. As the surface
high moves off to the east... We should see onshore winds return
through this afternoon. Warmer temps expected the next few days
along with increasing moisture levels (as S SE winds strengthen
in response to a low pressure moving into the southern plains).

Highs in the lower 90s with lows in the 70s should prevail.

No real forecast issues are expected for SE tx until the latter
part of the upcoming weekend. The system moving into the southern
plains will help to drag a cold front into the state on Sat and
the boundary should eventually make its way into the northern
portions of our cwfa by Sun night. The flattened upper flow will
likely keep the front over the area which will then act as a focus
for wet active weather for perhaps much of next week. Pws are
progged to around 2" as a series of shortwaves approach from the
west. Extended models have been fairly consistent with this
scenario these last few days, so will continue to keep elevated
pops in for this time frame. 41
marine...

onshore winds will quickly strengthen during the day today as the
pressure gradient tightens in response to developing low pressure in
the lee of the rockies. A moderate onshore flow will prevail through
the weekend with low pressure over west texas and high pressure over
the eastern gulf of mexico. A scec will likely be required at times
through the weekend, with SCA conditions possible overnight tonight
into Friday morning. A weak cold front will approach SE tx Sunday
night but is not forecast to make it off the coast. Lighter onshore
flow is forecast for the beginning of next week. 11

Preliminary point temps pops
College station (cll) 90 72 91 76 92 0 0 10 10 10
houston (iah) 88 74 89 78 91 0 0 10 10 10
galveston (gls) 84 78 85 80 85 0 0 10 10 10

Hgx watches warnings advisories
Tx... None.

Gm... Small craft should exercise caution until 7 pm cdt this evening
for the following zones: coastal waters from freeport to
the matagorda ship channel out 20 nm... Coastal waters from
high island to freeport out 20 nm... Galveston bay...

matagorda bay... Waters from freeport to the matagorda ship
channel from 20 to 60 nm... Waters from high island to
freeport from 20 to 60 nm.

Discussion... 31
aviation marine... 43


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 12 mi50 min S 18 G 21 80°F 78°F1009.6 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi50 min S 18 G 20 78°F 1010 hPa
MBET2 19 mi50 min SSW 18 G 21 79°F
EMAT2 25 mi50 min S 17 G 21 80°F 80°F1009.9 hPa
SDRT2 - 8773037 - Seadrift, TX 26 mi50 min SSE 16 G 19 79°F 78°F1010.1 hPa
AWRT2 39 mi50 min SSE 15 G 20 80°F 78°F1009.9 hPa
SGNT2 41 mi50 min S 13 G 18 80°F 78°F1010.1 hPa
KBQX 48 mi39 min S 22 79°F 79°F
MAXT2 - Mission-Aransas Reserve, TX 51 mi74 min 12 79°F 1011 hPa (+1.0)67°F

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX8 mi21 minS 15 G 2410.00 miFair82°F66°F58%1009.8 hPa
Port Lavaca - Calhoun County Airport, TX16 mi19 minS 15 G 2110.00 miFair84°F66°F54%1009.8 hPa

Wind History from PSX (wind in knots)
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Last 24hrNW10NW12
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NW7W4SW5SW3SW8S7SW7S5S7S11S11S12
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1 day ago6N7N7N8CalmS6S3N20
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2 days agoSE7----S10S7CalmN7N8N7NE6NE9N8N12N13N9N6E4NE3N13N9N9N85N4

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Thu -- 02:18 AM CDT     0.26 feet Low Tide
Thu -- 06:30 AM CDT     Sunrise
Thu -- 06:34 AM CDT     Moonrise
Thu -- 01:37 PM CDT     1.29 feet High Tide
Thu -- 02:46 PM CDT     New Moon
Thu -- 08:16 PM CDT     Sunset
Thu -- 08:17 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.30.30.30.30.50.60.80.911.11.21.31.31.31.31.21.21.21.110.80.70.5

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Thu -- 02:15 AM CDT     -0.20 feet Low Tide
Thu -- 06:30 AM CDT     Sunrise
Thu -- 06:34 AM CDT     Moonrise
Thu -- 12:40 PM CDT     1.09 feet High Tide
Thu -- 02:46 PM CDT     New Moon
Thu -- 08:16 PM CDT     Sunset
Thu -- 08:17 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-0.1-0.2-0.2-0.10.10.20.40.60.8111.11.11.1110.90.90.80.70.50.40.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Houston/Galveston, TX (14,3,4,5)
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Ground Weather Radar Station Houston/Galveston, 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.