Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Oyster Creek, 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 6:52AMSunset 7:57PM Sunday August 20, 2017 6:51 AM CDT (11:51 UTC) Moonrise 4:36AMMoonset 6:17PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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GMZ355 Coastal Waters From Freeport To The Matagorda Ship Channel Out 20 Nm-coastal Waters From High Island To Freeport Out 20 Nm- 342 Am Cdt Sun Aug 20 2017
Today..East winds 5 to 10 knots. Seas 1 to 2 feet.
Tonight..Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Monday..Southeast winds around 10 knots. Seas 2 feet. A chance of showers and Thunderstorms.
Monday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Seas 2 feet.
Tuesday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and Thunderstorms in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Wednesday..East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and Thunderstorms.
Thursday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. 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 342 Am Cdt Sun Aug 20 2017
Synopsis for high island to matagorda ship channel out 60 nm.. The region of surface high pressure that was located over the northwestern gulf of mexico will begin to move northeastward Sunday, and better coverage for showers and Thunderstorms can be expected through mid week. Elevated seas and gusty winds will be possible below stronger storms. Light winds should remain out of the south to southeast with lower seas throughout much of the week.

7 Day Forecast for Marine Location Near Oyster Creek, TX
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location: 29.08, -95.17     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 200945
afdhgx
area forecast discussion
national weather service houston galveston tx
445 am cdt Sun aug 20 2017

Discussion
After my awips2 cave session crashed with my completed afd wiped
out before sending, here's an abbreviated version of what I can
remember I wrote...

goes 16 fog imagery has been picking up on some patchy fog mainly
west and southwest of houston. Visibility has been ranging from
1sm to 6sm at most sites with klbx varying the most which is
driving our aviation forecaster insane. The insanity should stop
later this morning once winds start to mix which won't be that
much since there is hardly a pressure gradient.

Upper level pattern looks to be quasi-zonal across the northern
tier of states with a trough over the great lakes or new england
states. Pesky tutt now in the E gulf west of florida as seen in
water vapor imagery. GOES 16 derived pw imagery shows a plume of 2
inch pw off the coast of la. Nam GFS show enough 925-700 mb flow
to advect this higher moisture over SE texas by this evening. This
along with the sea breeze should support a few showers and storms
this afternoon with most activity east of i-45.

Monday to Wednesday there is really not a lot of change as the
tutt moves over the NW gulf lowering heights and allowing for
scattered showers and storms given the higher moisture. Forecast
will keep 30-40 pop for Monday Tuesday. Wednesday will go with 30
pops as a frontal boundary begins to slide south from N tx. It
gets a boost from a short wave trough diving through the great
lakes on Thursday. Front should stall inland in line with the
gfs ECMWF solutions. Front should maintain 30-40 pop for the rest
of the week. Upper ridge builds next weekend so could see a drying
trend from the rainfall potential.

Bottom line at the bottom... Will I be able to view the solar
eclipse on Monday? On the bright side we are not forecasting
overcast skies. But there is still the potential for
scattered broken cloud decks to form due to developing convection
late morning into the early afternoon when viewing the eclipse.

Areas north of houston will have the best viewing probabilities
but those chances will be less south of houston where convection
may be developing.

Overpeck

Tropics
In short, TS harvey died a horrible death. After last night's
convective burst, it looked like harvey could hold on, but some
drier air and shear got the better of it as can happen in the
caribbean. It sill could make a comeback as it nears the nw
caribbean. The problem is that the system could interact with land
quite a bit before emerging in the bay of campeche. If it
survives that interaction, then it will only have a little time to
organize before moving into mexico again. Still something to
monitor over the next few days.

Overpeck

Marine
Currently, fairly light and variable winds across SE tx. By
sunrise, the wind direction should be out of the SW prior to the
passage of the seabreeze Sunday afternoon, then becoming more
southeasterly. Sea heights currently between 1-2 feet will also
rise to 2-3 feet early next week. The area of surface high
pressure will begin to weaken and shift further northeastward
throughout the day Sunday, allowing for a rise in moisture
migrating in from the southeast. With precipitable waters on the
rise tomorrow, expecting better coverage of showers and
thunderstorms originally building mostly over the nearshore waters
early morning before pushing onshore. Brief elevated seas and
gusty winds can be expected beneath stronger storms. Additionally,
an area of disturbed weather associated with a region of low
pressure will also help to increase our chances for shower and
thunderstorm coverage Sunday through mid-week. Drier conditions
should prevail late week as high pressure begins to build back
into the region, with winds out of the southeast and seas again
lowering to 1-2 feet.

No big changes in the tides evening. Tides are still running
around normal to only slightly above normal by less than a half
foot.

Hathaway

Preliminary point temps pops
College station (cll) 99 76 98 75 98 10 10 20 10 20
houston (iah) 97 78 94 77 94 20 10 40 10 40
galveston (gls) 93 82 91 82 91 20 10 40 10 30

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 39
aviation marine... 08


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LUIT2 3 mi52 min N 1.9 G 2.9 82°F 87°F
FCGT2 - 8772447 - USCG Freeport, TX 12 mi52 min S 1 G 1.9 84°F 88°F1015 hPa (-0.0)
GRRT2 21 mi52 min NW 2.9 G 2.9 80°F 89°F1015.1 hPa (+0.6)
GTOT2 26 mi52 min 83°F 89°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 30 mi52 min Calm G 1 87°F1014.6 hPa (+0.5)
EPTT2 - 8771013 - Eagle Point, TX 31 mi52 min NW 1.9 G 1.9 81°F 89°F1015.1 hPa (+0.3)
SGNT2 32 mi52 min SW 6 G 8 85°F 88°F1013.9 hPa (-0.0)
42035 - GALVESTON 22NM East of Galveston, TX 41 mi52 min W 1.9 G 3.9 85°F 87°F1 ft1015.1 hPa (+0.5)76°F
MGPT2 - 8770613 - Morgans Point, TX 43 mi52 min Calm G 1 82°F 87°F1015.1 hPa (+0.4)
NCHT2 - 8770777 - Manchester, TX 45 mi52 min WSW 1 G 2.9 82°F 85°F1014.2 hPa (-0.0)
RLOT2 - 8770971 - Rollover Pass, TX 46 mi52 min WSW 1.9 G 2.9 83°F 85°F1015.2 hPa (+0.4)
EMAT2 47 mi52 min SW 4.1 G 6 83°F 87°F1013.6 hPa (-0.5)
LYBT2 48 mi52 min SSE 1.9 G 1.9 82°F 87°F1015.2 hPa (+0.3)

Wind History for USCG Freeport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Angleton / Lake Jackson, Brazoria County Airport, TX16 mi59 minN 01.50 miFog/Mist74°F73°F97%1014.6 hPa
Galveston, Scholes Field, TX21 mi60 minNNW 310.00 miA Few Clouds82°F79°F90%1015.2 hPa

Wind History from LBX (wind in knots)
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Last 24hrCalmN3Calm5SW5S7Calm3N6S76S7S8S5S3CalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmSW4SW75SW5NW4S7SW6S11S9S9S9S6S5S7CalmS4S6S5CalmCalmCalm
2 days agoS3Calm4S9S10S10S9S10S9S10S11
G17
S12S10S7SW3CalmCalmS3CalmS4CalmCalmN3S4

Tide / Current Tables for Christmas Point, Christmas Bay, Texas
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Christmas Point
Click for Map
Sun -- 05:36 AM CDT     Moonrise
Sun -- 06:52 AM CDT     Sunrise
Sun -- 07:48 AM CDT     1.01 feet High Tide
Sun -- 12:49 PM CDT     0.79 feet Low Tide
Sun -- 05:02 PM CDT     0.92 feet High Tide
Sun -- 07:17 PM CDT     Moonset
Sun -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.2-00.20.40.70.91110.90.80.80.80.80.90.90.90.90.80.60.40.1-0

Tide / Current Tables for Alligator Point, West Bay, Texas
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Alligator Point
Click for Map
Sun -- 05:35 AM CDT     Moonrise
Sun -- 06:52 AM CDT     Sunrise
Sun -- 07:53 AM CDT     1.01 feet High Tide
Sun -- 12:43 PM CDT     0.80 feet Low Tide
Sun -- 05:05 PM CDT     0.94 feet High Tide
Sun -- 07:17 PM CDT     Moonset
Sun -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.100.20.50.70.91110.90.80.80.80.80.90.90.90.90.80.60.40.2-0

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 (7,2,3,4)
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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.