Monday, April23, 2018 L-36.com


Marine Weather and Tides
Galveston, TX

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:42AMSunset 7:52PM Monday April 23, 2018 9:57 PM CDT (02:57 UTC) Moonrise 12:43PMMoonset 1:36AM Illumination 63% Phase: Waxing Gibbous; Moon at 9 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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GMZ375 Waters From Freeport To The Matagorda Ship Channel From 20 To 60 Nm-waters From High Island To Freeport From 20 To 60 Nm- 331 Pm Cdt Mon Apr 23 2018
Tonight..Southwest winds 5 to 10 knots becoming west after midnight. Seas 2 to 3 feet.
Tuesday..North winds 5 to 10 knots becoming east in the afternoon. Seas 1 to 2 feet.
Tuesday night..South winds 5 to 10 knots. Seas 1 to 2 feet.
Wednesday..East winds 5 to 10 knots. Seas 1 to 2 feet.
Wednesday night..Southeast winds 5 to 10 knots becoming west 10 to 15 knots after midnight. Seas 1 to 2 feet. A slight chance of showers and Thunderstorms.
Thursday..North winds 10 to 15 knots becoming northeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet.
Thursday night..South winds 5 to 10 knots becoming northwest after midnight. Seas 1 to 2 feet.
Friday..North winds 10 to 15 knots becoming northeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet.
Friday night..East winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. Seas 1 to 2 feet.
Saturday..East winds 10 to 15 knots. Seas 1 to 2 feet.
Saturday night..Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 331 Pm Cdt Mon Apr 23 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Light offshore winds should persist through Tuesday. A brief period of onshore winds will return Tuesday night until becoming offshore again Wednesday night in the wake of another weak front.

7 Day Forecast for Marine Location Near Galveston, TX
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location: 28.84, -94.35     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 240239
afdhgx
area forecast discussion
national weather service houston galveston tx
939 pm cdt Mon apr 23 2018

Discussion
No changes planned at this time. Going forecast appears to be on
track. 41

Prev discussion issued 403 pm cdt Mon apr 23 2018
a nice and quiet day with cumulus forming along the backside of a
slowly churning upper low just west of appalachia. Northwest
winds and mainly clear skies will prevail through Tuesday as lower
level high pressure moves across the central u.S.. Increasing
cloudiness with winds becoming more variable on Wednesday as the
region falls just downstream of an approaching shortwave trough
moving southeast out of the central rockies. Low end to (low end)
moderate pops associated with the surface boundary passage during
the late Wednesday evening through early Thursday morning hours.

The main question marks will be with moisture return and upper
level forcing (or lack thereof). With Wednesday's brief onshore
flow and mid-level westerly steering winds pulling in a more humid
south central texas air mass... There will not be enough time to
fully saturate the column by the early Thursday morning frontal
passage. Jet dynamics are not there as models indicate no low
level jet and a fairly zonal westerly flow pattern at 250-300 mb.

Any precipitation that forms appears to be along or just ahead of
the front itself. Ample lapse rates exist for any forced parcel
within the frontal zone to continue on an unimpeded upward trek.

Hence the relatively lower chances for mainly evening showers with
isolated storms and early Thursday scattered showers with
embedded thunder that will be focused over the northern 2 3rds of
the cwa.

Transitory ridging moving across the southern plains in the wake
of Thursday's mid atlantic upper troughing will equate to fair
weather leading into the weekend. Clearing skies and dry conditions
to end the week. Possibly some minor cooling Thursday as tmaxs
struggle to reach the upper 70s but, by Friday, subsequent days
will again warm into the lower 80s nights cooling into the middle
50s. Onshore winds and moisture return on Sunday with minor pops
painted out west to account for a possible weak disturbance passage
or two going into early next week. 31

Preliminary point temps pops
College station (cll) 56 83 59 80 54 0 0 0 20 40
houston (iah) 56 84 61 82 58 0 0 0 10 40
galveston (gls) 64 77 67 75 64 0 0 0 10 30

Hgx watches warnings advisories
Tx... None.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KXIH 25 mi23 min WSW 8.9 70°F 61°F
42035 - GALVESTON 22NM East of Galveston, TX 27 mi68 min WSW 14 G 16 70°F 71°F2 ft1015.8 hPa (+1.2)62°F
GTOT2 40 mi40 min W 4.1 G 6 73°F 72°F1015.8 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 41 mi46 min NNW 4.1 G 5.1 72°F 71°F1015.5 hPa
GRRT2 43 mi40 min NW 4.1 G 5.1 71°F 73°F1015.7 hPa
LUIT2 44 mi40 min SW 8 G 11 70°F 1015.9 hPa
RLOT2 - 8770971 - Rollover Pass, TX 47 mi40 min NW 5.1 G 6 73°F 71°F1016 hPa

Wind History for Galveston Pleasure Pier, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
High Island 179A (Apache Corp), LA25 mi63 minWSW 1210.00 miFair72°F60°F69%1015.6 hPa

Wind History from XIH (wind in knots)
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Last 24hrN9N8N8N10N10N11N11N8N5N6NW4CalmNW8NW8NW8SW6SW7SW8SW13SW10SW15SW13SW12
G18
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1 day agoSE23S17
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NW24SW5SW7W11W15NW13NW8NW10NW6NW10
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2 days agoE21SE21SE22SE20SE21SE22SE21SE20SE21SE23SE20SE21SE20SE18SE16E23SE14SE15SE16SE16SE15SE16SE19SE21

Tide / Current Tables for Galveston Pleasure Pier, Gulf Of Mexico, Texas (sub)
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Galveston Pleasure Pier
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Mon -- 02:38 AM CDT     Moonset
Mon -- 03:52 AM CDT     0.15 feet Low Tide
Mon -- 06:44 AM CDT     Sunrise
Mon -- 11:54 AM CDT     2.19 feet High Tide
Mon -- 01:44 PM CDT     Moonrise
Mon -- 07:27 PM CDT     1.57 feet Low Tide
Mon -- 07:50 PM CDT     Sunset
Mon -- 08:50 PM CDT     1.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.40.20.10.20.50.81.21.61.92.12.22.121.91.81.71.61.61.61.71.71.6

Tide / Current Tables for Galveston (Pleasure Pier), Texas
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Galveston (Pleasure Pier)
Click for Map
Mon -- 02:38 AM CDT     Moonset
Mon -- 04:10 AM CDT     -0.01 feet Low Tide
Mon -- 06:44 AM CDT     Sunrise
Mon -- 12:31 PM CDT     2.30 feet High Tide
Mon -- 01:44 PM CDT     Moonrise
Mon -- 07:18 PM CDT     1.36 feet Low Tide
Mon -- 07:50 PM CDT     Sunset
Mon -- 09:57 PM CDT     1.43 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.30.1-000.20.611.41.82.12.32.32.221.71.61.41.41.41.41.41.4

Weather Map and Satellite Images
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wmap_A
GOES Local Image of SouthCentralPlains    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (22,6,7,8)
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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.