Tuesday, January16, 2018 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 7:14AMSunset 5:48PM Tuesday January 16, 2018 1:18 PM CST (19:18 UTC) Moonrise 6:50AMMoonset 5:39PM Illumination 0% Phase: New Moon; Moon at 29 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- 941 Am Cst Tue Jan 16 2018
.gale warning in effect through this evening...
Rest of today..North winds 25 to 30 knots with gusts of 35 to 40 knots. Seas 5 to 7 feet with occasional seas up to 8 feet. Rain likely. Light freezing rain, snow and sleet likely late in the afternoon.
Tonight..North winds 20 to 25 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of light freezing rain, snow and sleet in the evening, then a slight chance of light freezing rain, snow and sleet after midnight.
Wednesday..North winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet.
Wednesday night..Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Thursday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Thursday night..East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers.
Friday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers.
Friday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet. A chance of showers.
Saturday..South winds 10 to 15 knots. Seas 4 to 5 feet with occasional seas up to 6 feet. A slight chance of showers.
Saturday night..South winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 7 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 941 Am Cst Tue Jan 16 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Strong cold northerly winds will continue today. Light rain over the area may be mixed with sleet or freezing rain and snow over the bays and nearshore waters. Wind speeds will gradually diminish Wednesday. High pressure will move east of the region allowing onshore winds to resume by Thursday night and persist into the weekend. The next front should move into the area late Sunday.

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 161800
afdhgx
area forecast discussion
national weather service houston galveston tx
1200 pm cst Tue jan 16 2018

Discussion
Numerous reports of freezing rain sleet snow across the area. Even
galveston getting into the game with 3 hours of snow in the
observation. Expanded the winter storm warning to the coast.

Guidance showing abundant lift spreading over the area this
afternoon with depth of cold air increasing. Precip should
transition over to mainly snow by mid afternoon. Unfortunately the
temperatures down to 25 to 29 in the houston metroplex-23 to 26
north. Expect that in the next couple of hours icing should
transition from elevated roadways to surface streets in the
houston metro.

Aviation
Light freezing rain tapering off with snow and sleet taking over.

Ceilings MVFR iah southward and 3500-6000ft to the north of iah.

As drier air wedges in this should speed the transition to snow
and lift ceilings. S W moving toward nctx should give a burst of
snow to the region 19-22z with a corresponding lowering of visby.

Light snow will probably linger at hou southward 22-02z.VFR
conditions should prevail at all sites by 03-06z. Temperatures
rising back above freezing 18-19z timeframe Wednesday.

45

Prev discussion issued 413 am cst Tue jan 16 2018
discussion...

arctic cold front is now moving through the coastal waters. Behind the
front, temperatures have been falling with below freezing readings
now across much of our northern counties and likely creating hazardous
driving conditions where mixed precipitation is falling and any accumulations
are occuring. Breezy and gusty north winds behind the front are helping
to drop wind chill readings to around 20 at some spots at 3 am, and
expect these values to continue to fall throughout the day with teens
areawide before sunset. South of the current mixed precipitation locations
and possibly all the way to the coast, areas of rain will transition
over to mixed precipitation as temperatures fall below freezing. Some
enhancement during the day could possibly bring pockets of increasing
mixed precipitation coverage resulting in an increasing travel hazard
where any accumulations develop. The winter storm warning and winter
weather advisory will remain in effect with this package, and will
cover the elevated winds and falling wind chills with the statement.

Precipitation will come to an end from north to south beginning this
afternoon and continuing to the coast tonight as strong high pressure
helps to bring much drier air into the area. Future shifts will likely
be able to adjust remove parts of our area from the warning and advisory,
and we will likely be replacing them with hard freeze warnings (Wednesday
morning's lows in the teens north and 20s south all the way to the
coast) and wind chill advisories (ranging from 5 up north to the teens
at the coast) for much of the area. Wednesday's record low temperatures
are 0 degrees set in 1930 for cll, 15 degrees set in 1930 for the city
of houston, 23 degrees set in 1965 for hou and 23 degrees set in 1885
at gls). Temperatures will struggle to warm on Wednesday and should
peak in the mid to upper 30s, but winds will be much weaker. Thursday
morning's lows will be cold again, ranging from around 20 north to
close to freezing at the coast, and another hard freeze warning will
probably be needed generally to the north of i-10. Look for a warmup
to begin on Thursday, and we might even see some highs in the 70s over
the weekend. As for our next best chance of rain (temperatures will
not be cold enough for anything frozen), it should come around Friday
and Friday night (higher chances near the coast and lower chances inland)
as a mid upper level storm system move eastward across south texas,
and then again on Sunday with the approach and passage of the next
cold front. 42
marine...

will maintain current gale warning and advisory flags, but have made
starting time to the current time as the front is now pushing off
the coast. Will also hoist a low water advisory for the bays
(primarily for the northern parts) as strong nnw winds transport
water out. Observed levels are forecast to be around -1.5 mllw
the mid morning low tide. There could be some frozen precipitation
behind the front before clearing this evening.

High pressure will move east of the region allowing onshore winds to
resume by Thursday night and persist into the weekend. The next
front should move into the area late Sunday. 47
aviation...

transition of precip from liquid to frozen has occurred as far south
as cxo. Temps will continue to fall further in the metro area and
coast thru the day so expect frozen precip there as well. Most of
the precipitation will end by 01z. Strong north winds will develop
in the wake of the front and will begin to subside toward Tuesday
evening. Generally ifr ceilings are expected behind the front
gradually lifting to MVFR this morning with someVFR conditions
developing by late afternoon over the northern TAF sites and after
00z over the south. Skies are expected to becomeVFR areawide
between 06-09z. 47

Preliminary point temps pops
College station (cll) 27 17 37 22 43 50 10 0 10 10
houston (iah) 32 20 37 25 43 80 10 0 10 10
galveston (gls) 39 26 37 32 47 80 30 10 10 10

Hgx watches warnings advisories
Tx... Winter storm warning until midnight cst tonight for the
following zones: austin... Brazoria... Brazos... Burleson...

chambers... Colorado... Fort bend... Galveston... Grimes...

harris... Houston... Jackson... Liberty... Madison...

matagorda... Montgomery... Polk... San jacinto... Trinity...

walker... Waller... Washington... Wharton.

Gm... Low water advisory from midnight tonight to 6 pm cst Wednesday
for the following zones: galveston bay... Matagorda bay.

Small craft advisory until midnight cst tonight for the
following zones: galveston bay... Matagorda bay.

Gale warning until midnight cst tonight 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... 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... 39
aviation marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LUIT2 3 mi48 min N 25 G 32 32°F 50°F1035 hPa
FCGT2 - 8772447 - USCG Freeport, TX 12 mi48 min N 12 G 17 31°F 51°F1035.8 hPa
GRRT2 21 mi48 min N 18 G 23 31°F 46°F1035.7 hPa
GTOT2 26 mi48 min N 17 G 23 32°F 49°F1035.7 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 30 mi48 min N 16 G 18 48°F1034.8 hPa
EPTT2 - 8771013 - Eagle Point, TX 31 mi48 min N 8 G 12 30°F 47°F1036.6 hPa
SGNT2 32 mi48 min N 4.1 G 6 31°F 41°F1034.8 hPa
KXIH 35 mi23 min NE 25 G 38 34°F 30°F
42035 - GALVESTON 22NM East of Galveston, TX 41 mi88 min N 27 G 33 35°F 53°F6 ft1034.2 hPa (+1.6)34°F
MGPT2 - 8770613 - Morgans Point, TX 43 mi48 min N 4.1 G 7 49°F1036.9 hPa
NCHT2 - 8770777 - Manchester, TX 45 mi48 min N 4.1 G 8 27°F 49°F1036.7 hPa
RLOT2 - 8770971 - Rollover Pass, TX 46 mi48 min N 17 G 22 32°F 38°F1035.6 hPa
EMAT2 47 mi48 min NNW 1.9 G 2.9 30°F 45°F1035.3 hPa

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 mi25 minN 19 G 284.00 miLight Snow and Breezy31°F26°F82%1036 hPa
Galveston, Scholes Field, TX21 mi26 minN 24 G 313.00 miLight Snow Fog/Mist and Windy34°F30°F89%1035.3 hPa

Wind History from LBX (wind in knots)
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Last 24hrSE9SE10SE11SE10E6E5E7E7E5E6E3CalmCalmN16
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1 day agoE8
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E6E8E6E5NE5E3CalmE3E3E4CalmCalmCalmCalmCalmCalmCalmSE3SE5SE11S11SE11SE6
2 days agoN9N8NW6N7CalmCalmCalmCalmCalmNE3CalmNE5NE4NE4NE6NE4NE4N4NE5NE6E9E8E7E8
G15

Tide / Current Tables for Christmas Point, Christmas Bay, Texas
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Christmas Point
Click for Map
Tue -- 12:38 AM CST     0.54 feet Low Tide
Tue -- 03:54 AM CST     0.57 feet High Tide
Tue -- 06:49 AM CST     Moonrise
Tue -- 07:15 AM CST     Sunrise
Tue -- 12:12 PM CST     -0.39 feet Low Tide
Tue -- 05:38 PM CST     Moonset
Tue -- 05:45 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tue -- 08:26 PM CST     0.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.60.60.50.50.30.2-0-0.2-0.3-0.4-0.4-0.3-0.10.10.30.40.60.60.60.60.6

Tide / Current Tables for Alligator Point, West Bay, Texas
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Alligator Point
Click for Map
Tue -- 12:17 AM CST     0.52 feet Low Tide
Tue -- 03:50 AM CST     0.55 feet High Tide
Tue -- 06:49 AM CST     Moonrise
Tue -- 07:15 AM CST     Sunrise
Tue -- 12:05 PM CST     -0.43 feet Low Tide
Tue -- 05:38 PM CST     Moonset
Tue -- 05:45 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tue -- 08:25 PM CST     0.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.50.60.50.50.30.1-0.1-0.3-0.4-0.4-0.4-0.3-0.100.20.40.50.60.60.60.5

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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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.