Tuesday, February20, 2018 L-36.com


Marine Weather and Tides
Matagorda, 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 6:55AMSunset 6:19PM Tuesday February 20, 2018 9:48 AM CST (15:48 UTC) Moonrise 10:01AMMoonset 10:57PM Illumination 28% Phase: Waxing Crescent; Moon at 5 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 The Matagorda Ship Channel Out 20 Nm- 421 Am Cst Tue Feb 20 2018
Today..Southeast winds near 15 knots. Seas 5 feet. Areas of fog. A slight chance of showers and Thunderstorms.
Tonight..Southeast winds near 15 knots. Seas 5 feet. Areas of fog. A chance of showers and Thunderstorms.
Wednesday..Southeast winds near 15 knots. Seas 5 feet. Areas of fog. A chance of showers and Thunderstorms in the morning. Showers and Thunderstorms likely in the afternoon.
Wednesday night..Southeast winds 10 to 15 knots. Seas 5 feet. Areas of fog. Showers and Thunderstorms likely.
Thursday..Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Areas of fog. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Areas of fog. A slight chance of showers and Thunderstorms.
Friday..Southeast winds 10 to 15 knots. Seas 4 to 5 feet with occasional seas up to 6 feet. A slight chance of showers and isolated Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 4 to 5 feet with occasional seas up to 6 feet. A slight chance of showers and isolated Thunderstorms.
Saturday..South winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers and isolated Thunderstorms.
Saturday night..Southwest winds around 10 knots becoming north after midnight. Seas 4 to 5 feet with occasional seas up to 6 feet. A chance of showers and isolated Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 421 Am Cst Tue Feb 20 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate onshore winds and elevated seas will persist today. Speeds will begin to diminish later tonight and Wednesday as a weak front moves into, then stalls across inland parts of southeast texas. Areas of sea fog will remain a possibility until the next front pushes off the coast on Saturday.

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 200940
afdhgx
area forecast discussion
national weather service houston galveston tx
340 am cst Tue feb 20 2018

Discussion
It's another very warm and muggy early morning across southeast texas
with 3 am temperatures ranging from the upper 60s to the lower 70s.

Little temperature change is expected during the remaining overnight
hours under the ongoing elevated south to southeast winds, and this
will allow for another day of possible record high temperatures in
galveston and another day of record high minimum temperatures across
the area. A tight pressure gradient will keep winds elevated and gusty
today (close to wind advisory criteria). The area could see some showers
develop today, but still expecting to see a significant increase in
shower and thunderstorm coverage and intensity tonight mainly across
our northwest counties and then areawide on Wednesday underneath a deep
southwest flow aloft as moderate to strong low level convergence develops
along and ahead of an approaching and slow moving cold front while the
area becomes located in a somewhat divergent flow aloft. With precipitable
water values approaching 1.80 inches, locally heavy rainfall will be
possible. While the highest rainfall totals with this storm system
will end up off to our north and northeast (possibly exceeding 5 to
7 inches around the ARKLATEX area per wpc's latest 5-day QPF forecast),
it still looks like our area could get rainfall totals of around 3 to 4
inches north, 1 to 3 inches central and around an inch near the coast.

With these totals, widespread flooding is not anticipated and we may end
up with mostly localized street flooding on major roads highways, feeder
roads and intersections. Will continue to indicate slightly lower rain
chances on Thursday as the front that had stalled from around matagorda
bay to the south houston area begins to work its way back to the north.

Have rain chances (higher to the north and lower to the south) remaining
in the forecast Friday and Saturday. A cold front that makes it offshore
over the weekend could give us a brief break in the rain by Saturday
night and or Sunday, but it could become stationary near the coast at
the end of the weekend and into the start of next week and provide parts
of our area more chances of rain.

So far this year, rainfall totals are...

- cll: 1.78 inches (3.45 inches below normal)
- iah: 5.77 inches (0.23 inches above normal)
- hou: 5.71 inches (0.39 inches below normal)
- gls: 3.94 inches (1.95 inches below normal)
Wednesday's (2 21) record rainfall amounts are...

- cll: 2.75 inches (set in 1928)
- iah: 1.98 inches (set in 1928)
- hou: 2.56 inches (set in 1969)
- gls: 1.70 inches (set in 1928)
42

Marine
Moderate strong onshore flow and elevated seas will persist offshore
today and will extend the small craft advisory through this
afternoon. Closer to the coast, cooler shelf waters are slightly
limiting speeds to closer to 15kt but could need some caution flags
in the bays later today as we start seeing some gusts. Water levels
are currently running 1-1.5' above normal, but even these levels
shouldn't pose as coastal flood threat.

Warmer water temps and higher wind speeds have kept the sea fog in
check with reported visby's generally above 4nm this morning. That
being said, a cold front will be sagging into SE tx later tonight
and pulling up stationary inland. As this occurs, wind speeds should
diminish and would expect visby's to start going back down and
possibly be a periodic problem until the next front moves off the
coast late Saturday. 47

Aviation
Breezy sse winds are expected today with some 25kt gusts a decent
possibility at most terminals. Look for MVFR ceilings to prevail
most of the day with a couple of hours ofVFR mixed in this
afternoon. Ongoing tafs have a pretty good handle on the situation
and trends will mostly be left as-is in the 12z package. Shra tstms
should make their way into the cll uts area this afternoon... Slowly
sagging sse toward the metro airports early wed. 47

Preliminary point temps pops
College station (cll) 78 64 70 53 67 60 80 90 70 60
houston (iah) 79 67 78 62 73 40 60 80 70 60
galveston (gls) 75 66 75 64 71 30 50 70 70 50

Hgx watches warnings advisories
Tx... None.

Gm... Small craft advisory until 3 pm cst this afternoon for the
following zones: waters from freeport to the matagorda ship
channel from 20 to 60 nm... Waters from high island to
freeport from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EMAT2 2 mi49 min ESE 11 G 15 70°F 71°F1015.3 hPa (+1.8)
SGNT2 15 mi49 min ESE 7 G 9.9 66°F 67°F1015.9 hPa
KBQX 29 mi34 min SE 7 72°F 70°F
MBET2 30 mi49 min SSE 15 G 17 66°F 61°F1013.9 hPa (+1.7)
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 32 mi49 min SE 14 G 16 66°F 63°F1014.7 hPa (+1.7)
FCGT2 - 8772447 - USCG Freeport, TX 35 mi49 min E 8 G 9.9 66°F 62°F1017 hPa (+1.7)
VCAT2 39 mi49 min SE 15 G 18 68°F 70°F1014.6 hPa (+1.8)
KBBF 44 mi34 min SSE 20 73°F 70°F
LUIT2 48 mi49 min SE 9.9 G 13 66°F 1016.7 hPa (+1.9)
SDRT2 - 8773037 - Seadrift, TX 48 mi49 min E 16 G 23 72°F 70°F1014.4 hPa (+1.3)

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay City, Bay City Municipal Airport, TX20 mi54 minSSE 13 G 177.00 miOvercast73°F69°F90%1016.3 hPa
Palacios Municipal Airport, TX20 mi56 minSE 156.00 miFog/Mist72°F71°F97%1015.4 hPa

Wind History from BYY (wind in knots)
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1 day agoE6SE10SE7S12S14S13S12SE13
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2 days agoSW7SW8SW11SW12
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S5S5N4CalmSE7N3CalmCalmCalmCalmNE3NE4CalmE5E3E4

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
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Tue -- 02:07 AM CST     -0.17 feet Low Tide
Tue -- 06:59 AM CST     Sunrise
Tue -- 08:29 AM CST     -0.01 feet High Tide
Tue -- 10:02 AM CST     Moonrise
Tue -- 02:23 PM CST     -0.09 feet Low Tide
Tue -- 06:19 PM CST     Sunset
Tue -- 06:58 PM CST     -0.01 feet High Tide
Tue -- 10:58 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.2-0.2-0.2-0.1-0.1-0.1-0-0-0-0-0-0.1-0.1-0.1-0.1-0.1-0-0-0-0-0-0.1-0.1

Tide / Current Tables for Pass Cavallo, Texas
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Pass Cavallo
Click for Map
Tue -- 06:59 AM CST     Sunrise
Tue -- 07:10 AM CST     0.78 feet High Tide
Tue -- 10:02 AM CST     Moonrise
Tue -- 11:18 AM CST     0.27 feet Low Tide
Tue -- 06:19 PM CST     Sunset
Tue -- 07:05 PM CST     0.82 feet High Tide
Tue -- 10:58 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.30.40.50.60.70.70.80.70.60.40.30.30.30.40.50.60.70.80.80.80.60.40.1

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 (10,2,3,4)
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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.