Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
Shoreacres, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:11AMSunset 7:37PM Tuesday March 28, 2017 8:27 PM CDT (01:27 UTC) Moonrise 6:46AMMoonset 7:28PM Illumination 2% Phase: Waxing Crescent; Moon at 2 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 Matagorda Bay-galveston Bay- 346 Pm Cdt Tue Mar 28 2017
.small craft should exercise caution...
Tonight..Southeast winds 15 to 20 knots. Bay waters choppy. A slight chance of showers and Thunderstorms after midnight.
Wednesday..South winds 15 to 20 knots. Bay waters choppy. Showers likely and isolated Thunderstorms. Some Thunderstorms may be severe with heavy rainfall.
Wednesday night..South winds 10 to 15 knots becoming southwest after midnight. Bay waters slightly choppy. Showers likely and isolated Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight. Some Thunderstorms may be severe with heavy rainfall in the evening.
Thursday..Northwest winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Thursday night..Northwest winds 5 to 10 knots becoming south after midnight. Bay waters smooth.
Friday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday..Southeast winds 10 to 15 knots becoming south 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon. Showers and Thunderstorms likely.
Sunday night..South winds 10 to 15 knots becoming southwest 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. 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 346 Pm Cdt Tue Mar 28 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Southeast winds will increase tonight across the upper texas coastal waters. Seas will continue to gradually build this afternoon and tonight. Winds and seas should decrease late Wednesday into Thursday as a pacific cold front pushes off the coast on Thursday. Offshore winds are expected Thursday into Friday but southerly winds develop again for the weekend strenthening late Saturday and Sunday.

7 Day Forecast for Marine Location Near Shoreacres, TX
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location: 29.64, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 282113
afdhgx
area forecast discussion
national weather service houston/galveston tx
413 pm cdt Tue mar 28 2017

Discussion
A dynamic upper level pattern will bring several rounds of stormy
weather to SE texas throughout the forecast period. The first
round will begin early tomorrow morning as a cluster of showers
and thunderstorms approaches from the west and pushes through se
texas throughout the day and into the night tomorrow night. Some
of these storms may be strong to severe, with all modes of severe
weather including damaging winds, large hail, and tornadoes in
play. The greatest severe potential should generally occur during
the afternoon and evening hours tomorrow as the storms push into
the western half of the cwa. Locally heavy rainfall will also be
possible with this system, especially if it slows down as pws
should spike up to around 1.6-1.75 during the afternoon. As far as
major changes to the forecast, some of the latest guidance
suggests a slightly earlier onset over the western zones than was
previously forecast, but otherwise not too much has changed from
the previous forecast package.

Once tomorrow's system finally pushes out of the area, there will
be a brief lull in active weather until the next system approaches
sometime in the Saturday/Saturday night time frame and lasts
through the rest of the weekend. Some severe weather may also be
possible with this system as well, but the greater threat for this
weekend's system will most likely be heavy rainfall.

Once this second system finally pushes out sometime on Monday,
another lull in action is expected before another front possibly
reaching SE texas sometime around next Wednesday.

11

Marine
Winds in the coastal waters and across setx increasing and scec-sca
conditions will prevail tonight. Seas should build to 7-9 feet
offshore. Elevated tide levels with stronger rip currents should
prevail. The southeast to south winds of 15-20 bays and 20-25 knots
over the gulf waters will steadily build seas and with a long fetch
will maintain the elevated seas through early Wednesday. The sca
will probably need extending. Once the pacific front moves through
Thursday westerly to northwesterly flow will follow but mainly light
to moderate winds of 10 to 15 knots should be the strongest wake of
the front winds. Another storm system arrives Saturday and Sunday
and will ramp the winds back up again and SCA conditions will be
redeveloping.

45

Preliminary point temps/pops
College station (cll) 69 81 58 75 53 / 60 80 40 10 0
houston (iah) 71 83 66 79 57 / 20 80 50 20 0
galveston (gls) 72 78 69 76 66 / 10 70 60 30 0

Hgx watches/warnings/advisories
Tx... None.

Gm... Small craft should exercise caution through Wednesday morning
for the following zones: galveston bay... Matagorda bay.

Small craft advisory until 10 am cdt Wednesday 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... 11
aviation/marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi40 min SE 14 G 22 75°F 76°F1009.2 hPa
LYBT2 10 mi40 min SE 19 G 24 75°F 75°F1008 hPa
EPTT2 - 8771013 - Eagle Point, TX 12 mi40 min SSE 21 G 25 74°F 78°F1009 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi40 min SE 11 G 18 76°F 75°F1008.8 hPa
GRRT2 24 mi40 min SSE 14 G 21 74°F 77°F1009.1 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi40 min ESE 20 G 25 74°F
GTOT2 25 mi40 min 74°F 73°F
RLOT2 - 8770971 - Rollover Pass, TX 27 mi40 min SE 20 G 23 74°F 78°F1009.5 hPa
HIST2 32 mi40 min SE 6 G 11 74°F 77°F1009.9 hPa
LUIT2 40 mi40 min SE 15 G 19 74°F
KXIH 40 mi33 min S 21 73°F 72°F
42035 - GALVESTON 22NM East of Galveston, TX 42 mi38 min SE 18 G 23 73°F 72°F5 ft1008.9 hPa (-0.5)72°F

Wind History for Morgans Point, TX
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SE3
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G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi38 minSE 18 G 2310.00 miMostly Cloudy and Breezy75°F69°F83%1009.5 hPa
Houston, Houston Hobby Airport, TX15 mi35 minSE 13 G 2110.00 miOvercast76°F69°F79%1009 hPa
Houston, Pearland Regional Airport, TX16 mi35 minSE 149.00 miOvercast78°F70°F76%1009 hPa
John Dunn Helistop, TX22 mi33 minSE 13 G 225.00 miOvercast75°F68°F78%1007.4 hPa

Wind History from EFD (wind in knots)
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Last 24hrSE7SE4SE4SE4SE3SE4SE5SE3SE6SE6SE4E6SE8SE10SE10SE11SE14SE12E13SE17SE17
G23
SE14
G19
SE14SE18
G23
1 day agoSE9S9S7----S5----SE5--SE5S6S6S8S11S11S12S12S14S14S13S11SE13SE8
2 days agoSE4CalmS4S4S5CalmCalm--CalmCalmCalmCalmCalmS9--S14S14SE10SE13S15S13S11S11S10

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Barbours Cut
Click for Map
Tue -- 03:18 AM CDT     0.54 feet Low Tide
Tue -- 07:13 AM CDT     Sunrise
Tue -- 07:46 AM CDT     Moonrise
Tue -- 09:32 AM CDT     1.18 feet High Tide
Tue -- 03:45 PM CDT     0.55 feet Low Tide
Tue -- 07:36 PM CDT     Sunset
Tue -- 08:27 PM CDT     Moonset
Tue -- 09:27 PM CDT     1.06 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.70.60.50.60.70.811.11.21.21.110.80.70.60.60.60.70.911.111

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Tue -- 02:44 AM CDT     0.00 knots Slack
Tue -- 05:20 AM CDT     1.14 knots Max Flood
Tue -- 07:13 AM CDT     Sunrise
Tue -- 07:45 AM CDT     Moonrise
Tue -- 08:09 AM CDT     -0.00 knots Slack
Tue -- 11:59 AM CDT     -1.20 knots Max Ebb
Tue -- 03:26 PM CDT     0.00 knots Slack
Tue -- 05:40 PM CDT     0.89 knots Max Flood
Tue -- 07:35 PM CDT     Sunset
Tue -- 08:08 PM CDT     -0.00 knots Slack
Tue -- 08:26 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-0.8-0.40.20.81.11.10.70.1-0.5-0.9-1.1-1.2-1.1-0.8-0.30.30.80.90.60.1-0.5-0.9-1.2

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 (21,6,7,8)
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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.