Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Bolivar Peninsula, 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 7:08AMSunset 7:13PM Sunday September 24, 2017 1:43 AM CDT (06:43 UTC) Moonrise 10:07AMMoonset 9:21PM Illumination 13% Phase: Waxing Crescent; Moon at 4 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- 1043 Pm Cdt Sat Sep 23 2017
Rest of tonight..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday..East winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Monday..East winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms.
Monday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Tuesday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Wednesday..East winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots becoming east after midnight. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday..Northeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday night..Northeast winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1043 Pm Cdt Sat Sep 23 2017
Synopsis for high island to matagorda ship channel out 60 nm.. A light to moderate onshore flow with 2 to 3 foot seas should prevail into the mid part of the upcoming week. Tides will run slightly above normal with the onshore flow, but should not reach any coastal impact criteria. Isolated showers and Thunderstorms can be expected daily, especially during pre-dawn hours. A cold front will move offshore late next week and will increase winds and seas by next weekend.

7 Day Forecast for Marine Location Near Bolivar Peninsula CDP, TX
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location: 29.49, -94.56     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 240450
afdhgx
area forecast discussion
national weather service houston galveston tx
1150 pm cdt Sat sep 23 2017

Aviation
A few CU out there visible from the office at 04z over the bay.

Winds overnight light calm and favorable conditions for
patchy areas of fog and so have kept with this in more rural tafs
ifr vlifr conditions mainly after 09z. Iah hou should be mainly
mifg or light fog conditions. Showers should begin to develop over
the coastal waters before sunrise and spread inland with scattered
showers and a few thunderstorms in the window between 19-23z.

These may be focused more into the metro hubs... For now vcsh but
confidence increasing that vcts will probably be needed at
hou iah cxo. Rinse and repeat again Sun night Monday.

45

Prev discussion issued 953 pm cdt Sat sep 23 2017
discussion...

current forecast looks good. Afternoon storms died off quickly
after sunset and skies have cleared across SE tx this evening.

Patchy fog still possible over inland areas overnight and into
early Sun morning given the clear skies calm winds. Short-term
models keep with the idea of isolated widely scattered showers
and thunderstorms tomorrow. 41
prev discussion... Issued 858 pm cdt Sat sep 23 2017
aviation...

showers have ended and clouds dissipating. ExpectVFR conditions
til around 06-09z with fog developing at many sites and vlifr
possible toward morning. Iah hou should maintainVFR but could dip
into MVFR with mifg br for a few hours near sunrise. Moisture
increasing slightly Sunday and with neutral weak PVA at 500 and
easterly ll flow so expect an uptick in coverage. Will carry vcsh
after roughly 19z but will probably need to add in vcts or a
prob30 in upcoming package.

45
marine...

minor tweaks to the winds based on current obs. Otherwise it looks
on track. Winds 5-10 or 10-15 knots for the most part with seas
2-3 feet.

45

Preliminary point temps pops
College station (cll) 72 90 72 90 72 20 10 10 30 10
houston (iah) 73 90 73 89 73 20 20 10 30 10
galveston (gls) 79 89 80 88 79 20 20 10 30 20

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 41
aviation marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RLOT2 - 8770971 - Rollover Pass, TX 3 mi43 min SE 11 G 14 82°F 83°F1012.1 hPa (+0.0)
HIST2 12 mi43 min ESE 4.1 G 6 80°F 85°F1012.4 hPa (+0.0)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 13 mi43 min SE 12 G 14 84°F1011.5 hPa (+0.0)
GTOT2 17 mi43 min 82°F 84°F
42035 - GALVESTON 22NM East of Galveston, TX 19 mi43 min SE 12 G 14 82°F 83°F2 ft1011.7 hPa (+0.0)76°F
EPTT2 - 8771013 - Eagle Point, TX 19 mi43 min SSE 11 G 13 82°F 85°F1012 hPa (+0.0)
KXIH 22 mi28 min
GRRT2 22 mi43 min NE 8 G 12 82°F 84°F1011.9 hPa (+0.0)
MGPT2 - 8770613 - Morgans Point, TX 26 mi43 min SE 7 G 11 82°F 83°F1011.8 hPa (+0.0)
SRST2 - Sabine Pass, TX 31 mi43 min SE 8.9 G 11 82°F 1012.7 hPa (+0.0)73°F
TXPT2 40 mi43 min SE 14 G 15 82°F 84°F1011.4 hPa (-0.3)
SBPT2 - 8770570 - Sabine Pass North, TX 40 mi43 min SE 9.9 G 12 82°F 85°F1013.6 hPa (-0.3)
LUIT2 41 mi43 min SE 11 G 16 82°F 85°F
NCHT2 - 8770777 - Manchester, TX 41 mi43 min SSE 4.1 G 8 80°F 81°F1011 hPa (+0.0)
PORT2 - 8770475 - Port Arthur, TX 42 mi43 min SE 4.1 G 7 80°F 83°F1012.5 hPa (+0.0)

Wind History for Rollover Pass, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX22 mi51 minSE 910.00 miFair83°F73°F74%1012 hPa
High Island 179A (Apache Corp), LA22 mi48 minno data10.00 miMostly Cloudy0°F0°F%1011.8 hPa

Wind History from GLS (wind in knots)
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Last 24hr----------------E7SE9----E9----E11--------------SE9
1 day ago--SE9SE10SE9S8SE6SE5E6E8SE9E11E10SE11E11--------------------
2 days agoS11S12S14S12S14S12S11SE10SE12S13S12SE13SE10SE7SE7SE8SE8SE11SE11SE11SE11SE10SE10SE10

Tide / Current Tables for Rollover Pass, Texas
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Rollover Pass
Click for Map
Sun -- 12:45 AM CDT     1.26 feet High Tide
Sun -- 05:47 AM CDT     1.22 feet Low Tide
Sun -- 07:07 AM CDT     Sunrise
Sun -- 08:18 AM CDT     1.28 feet High Tide
Sun -- 11:07 AM CDT     Moonrise
Sun -- 04:40 PM CDT     0.35 feet Low Tide
Sun -- 07:11 PM CDT     Sunset
Sun -- 10:20 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.31.21.21.21.21.21.21.31.31.21.10.90.70.50.40.40.40.40.50.70.911.1

Tide / Current Tables for Galveston Bay Entrance, Texas Current
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Galveston Bay Entrance
Click for Map
Sun -- 01:53 AM CDT     -0.44 knots Max Ebb
Sun -- 06:48 AM CDT     -0.11 knots Min Ebb
Sun -- 07:08 AM CDT     Sunrise
Sun -- 11:08 AM CDT     Moonrise
Sun -- 12:31 PM CDT     -1.55 knots Max Ebb
Sun -- 05:06 PM CDT     0.00 knots Slack
Sun -- 07:12 PM CDT     Sunset
Sun -- 08:12 PM CDT     1.24 knots Max Flood
Sun -- 10:21 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.4-0.4-0.4-0.4-0.3-0.2-0.1-0.3-0.8-1.2-1.4-1.5-1.5-1.3-0.9-0.5-00.511.21.10.90.6

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 (2,6,7,8)
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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.