Friday, January19, 2018 L-36.com


Marine Weather and Tides
Beach City, 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 7:13AMSunset 5:48PM Friday January 19, 2018 5:16 PM CST (23:16 UTC) Moonrise 8:55AMMoonset 8:15PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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GMZ335 Galveston Bay- 337 Pm Cst Fri Jan 19 2018
Tonight..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Patchy fog. A chance of showers and isolated Thunderstorms.
Saturday..South winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog in the morning. Areas of fog in the afternoon. A chance of showers.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A slight chance of showers.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A slight chance of showers. Isolated Thunderstorms in the afternoon.
Sunday night..South winds 10 to 15 knots becoming southwest after midnight. Bay waters slightly choppy. Areas of fog. A chance of showers in the evening. Isolated Thunderstorms. Showers likely after midnight.
Monday..Northwest winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the morning.
Monday night..North winds 5 to 10 knots. Bay waters smooth.
Tuesday..Northeast winds 5 to 10 knots. Bay waters smooth.
Tuesday night..Northeast winds 5 to 10 knots. Bay waters smooth.
Wednesday..Northeast winds around 10 knots. Bay waters smooth to slightly choppy.
Wednesday night..Northeast winds 5 to 10 knots. Bay waters smooth.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 337 Pm Cst Fri Jan 19 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Stronger southerly winds and building seas this evening as an area of low pressure moves east through the coastal waters. Onshore winds will also bring increased moisture and warmer temperatures through the weekend. This pattern will be favorable for the development for sea fog starting tonight and persisting into Sunday evening, when the next cold front is expected to push off the coast.

7 Day Forecast for Marine Location Near Beach City, TX
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location: 29.67, -94.86     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 192154
afdhgx
area forecast discussion
national weather service houston galveston tx
354 pm cst Fri jan 19 2018

Discussion
Warmer conditions with periods of rain and fog are expected
through this weekend before a cold front arrives late Sunday.

Afternoon surface analysis shows a coastal trough stretching from
near rockport to victoria and south into the gulf. East of this
feature, scattered to numerous showers aided by lift from an upper
low sliding across the region continue to build north and east
this afternoon. Expect this activity to translate east through the
evening and overnight hours as this upper low lifts towards the
lower mississippi valley with the coastal trough also lifting
inland and losing definition as this happens. Southerly flow will
spread across the region tonight in response, allowing low clouds
to fill in and patchy sea fog to develop along the coast. Inland
fog development will also be possible this evening and tonight,
especially as the coastal trough loses definition and weakens the
surface pressure gradient low level winds. High resolution
guidance does indicate the potential for dense fog and will have
to monitor short term trends for any development overnight.

Periods of light showers will continue tonight through Sunday as
the region remains under an increasing warm air advection regime.

With shelf waters having cooled into the mid 40s to lower 50s, sea
fog will also be possible during this time across the marine areas
and along the coast as moisture deepens across the region. High
temperatures will warm into the lower 70s by Saturday and the mid
70s by Sunday as low level southerly flow strengthens as a lee
surface low ejects across the central plains. An associated
pacific front or dryline developing across north central central
texas during the day Sunday may serve as a focus for thunderstorm
development Sunday afternoon and evening, but increasing southwest
flow aloft during this time may result in too much mid-level
stability for widespread thunderstorm development. A strong
thunderstorm cannot be ruled out along this boundary in the brazos
valley before a cold front overtakes it Sunday night, but the
aforementioned mid-level stability and the left front quadrant of
a 120+ knot upper level jet located over north texas indicate this
potential may be farther north of the region.

Numerous to widespread showers and a thunderstorm or two will
develop along the cold front as it pushes southeast across the
region Sunday night, before clearing the coast Monday morning.

Surface high pressure and dry conditions build into the region
Monday through Wednesday with rain chances returning to the
coastal and marine areas by Thursday as deeper moisture pushes
back into the region.

Huffman

Marine
Coastal troughing moving east and active area of shows and a few
thunderstorms will continue this evening as the trough shifts east
with the upper level S w. Winds over the coastal water will increase
slightly the remainder of the afternoon with building seas. Will
continue the SCA for the 20-60nm waters and scec nearshore. Fog
threat increasing slightly tonight but better chances looks to be
with lighter winds and higher dewpoints over the cold shelf waters
Saturday afternoon night. Persistent southerly flow with a 2-4 ft
swell Saturday and Sunday. Cold front sweeps through Sunday night
and winds gradually ramp up and will likely need SCA by Sunday
midnight onwards through Monday afternoon. Showers and possibly
thunderstorms with the fropa. This should end any lingering fog
threat.

45

Aviation
Band of lower CIGS from near arm-hou-efd ifr MVFR at 21z and this is
likely a good confirmation that ceilings will be dropping quickly
this evening as coastal trough slides eastward. Patchy fog
confidence is fairly high with lower visby probably in the cll-cxo-
uts region.

45

Preliminary point temps pops
College station (cll) 50 69 60 74 47 30 20 20 60 70
houston (iah) 53 71 60 75 54 30 30 20 40 70
galveston (gls) 56 66 59 69 56 50 30 20 20 60

Hgx watches warnings advisories
Tx... None.

Gm... Small craft should exercise caution through late 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.

Small craft advisory until 6 am cst Saturday 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.

Discussion... 14
aviation marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 7 mi46 min E 11 G 12 46°F1021.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 13 mi46 min E 9.9 G 11 46°F 42°F1021 hPa
RLOT2 - 8770971 - Rollover Pass, TX 21 mi46 min E 14 G 19 49°F 48°F1021.1 hPa
NCHT2 - 8770777 - Manchester, TX 22 mi46 min SE 8.9 G 17 53°F 52°F1020.1 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 23 mi46 min ENE 17 G 18 45°F1019.9 hPa
HIST2 25 mi46 min E 12 G 14 49°F 46°F1021.6 hPa
GTOT2 25 mi46 min E 8.9 G 15 53°F 46°F1020.3 hPa
GRRT2 26 mi46 min E 7 G 8 48°F 42°F1020.7 hPa
42035 - GALVESTON 22NM East of Galveston, TX 38 mi86 min ESE 14 G 16 55°F 52°F4 ft1020.4 hPa (-3.2)55°F
KXIH 38 mi21 min SSE 16 57°F 55°F
LUIT2 43 mi46 min ENE 15 G 16 51°F 46°F1020.2 hPa
SRST2 - Sabine Pass, TX 44 mi76 min E 9.9 G 13 48°F 1022.6 hPa (-2.5)46°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX17 mi26 minE 95.00 miLight Rain Fog/Mist50°F48°F94%1022 hPa
Houston, Houston Hobby Airport, TX22 mi23 minESE 73.00 miFog/Mist51°F51°F100%1021.4 hPa
Houston, Pearland Regional Airport, TX23 mi23 minE 125.00 miFog/Mist50°F50°F100%1021.1 hPa

Wind History from EFD (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmS3CalmCalmCalmCalmN3NE3NE3NE6NE5E6E11E9--E14
G19
E6E8E9E9
1 day agoN5N6N4N4--CalmNE3--NE3--N4--N4--NE6NE8NE7E9E4E4E4NE3CalmCalm
2 days agoN3N3N3N5N4N4N4N9N12
G18
N10N10N7N8N8N9N12N9N11N6N10NE7N5NW3Calm

Tide / Current Tables for Point Barrow, Trinity Bay, Texas
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Point Barrow
Click for Map
Fri -- 12:39 AM CST     0.75 feet High Tide
Fri -- 03:57 AM CST     0.59 feet Low Tide
Fri -- 07:14 AM CST     Sunrise
Fri -- 08:54 AM CST     Moonrise
Fri -- 08:58 AM CST     0.66 feet High Tide
Fri -- 03:57 PM CST     -0.38 feet Low Tide
Fri -- 05:45 PM CST     Sunset
Fri -- 08:15 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.70.60.60.60.60.60.60.70.60.50.30.1-0.1-0.3-0.4-0.3-0.2-0.10.10.30.40.6

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Fri -- 12:26 AM CST     -0.00 knots Slack
Fri -- 03:51 AM CST     -0.68 knots Max Ebb
Fri -- 04:22 AM CST     -0.68 knots Min Ebb
Fri -- 07:13 AM CST     Sunrise
Fri -- 08:53 AM CST     Moonrise
Fri -- 10:31 AM CST     -1.53 knots Max Ebb
Fri -- 03:11 PM CST     0.00 knots Slack
Fri -- 05:46 PM CST     Sunset
Fri -- 06:45 PM CST     1.72 knots Max Flood
Fri -- 08:15 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.2-0.5-0.6-0.7-0.7-0.8-1-1.2-1.4-1.5-1.5-1.4-1.2-0.7-0.10.61.21.61.71.61.310.6

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 (18,4,5,8)
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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.