Friday, May24, 2019 L-36.com


Marine Weather and Tides
Seabrook, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:21AMSunset 8:12PM Friday May 24, 2019 3:47 AM CDT (08:47 UTC) Moonrise 12:00AMMoonset 10:22AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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- 1016 Pm Cdt Thu May 23 2019
.small craft should exercise caution...
Rest of tonight..Southeast winds 15 to 20 knots. Bay waters choppy. Isolated showers late.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
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.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Monday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday..South winds around 15 knots. Bay waters slightly choppy to choppy. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1016 Pm Cdt Thu May 23 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate onshore winds and elevated seas will persist into the weekend. Wind speeds and seas should generally diminish Saturday into Sunday with more typical summer wind patterns. Although expect higher winds offshore at night. Expect an increase in winds and seas early next week.


7 Day Forecast for Marine Location Near Seabrook, TX
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location: 29.61, -94.98     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 240451
afdhgx
area forecast discussion
national weather service houston galveston tx
1151 pm cdt Thu may 23 2019

Aviation
Mostly all is quiet across the SE tx TAF sites this evening
besides a stray shower which went across iah and is now in the
vicinity of cxo, as seen via radar imagery. The occasional
streamer shower will be possible through the overnight hours and
into the morning. Still sticking to a persistence forecast, with
the main change being weaker winds across the area, though still
gusty at times, just not as strong. MVFR ceilings continue across
all terminals, with the occasional lift toVFR. MVFR ceilings
will continue through tomorrow mid morning. Gusty winds should
pick back up further inland and mostly west of i-45 my mid morning
tomorrow. Over this region winds should remain out of the
southeast and gust between 17-23 knots through the afternoon
hours. Ceilings should rise toVFR by early afternoon area wide,
before MVFR ceilings return once again tomorrow evening. Guidance
has backed off slightly on how early to bring MVFR ceilings
tomorrow night. Given the drier air ushering in with the ridge off
to our east, we could see the onset of high MVFR ceilings a touch
later tomorrow night.

Hathaway

Prev discussion issued 833 pm cdt Thu may 23 2019
discussion...

a weak upper level disturbance over SE tx will weaken and move off
to the east tonight. Showers are stubbornly holding on this
evening and will carry pops through 03z before the activity wanes.

Low level moisture will continue to stream into the area beneath a
capping inversion and would expect clouds to fill in as the night
progresses. Just like the past couple of nights, winds don't fully
decouple and the combination of clouds and winds will keep mint
above normal and probably in the mid upper 70's. Although the
disturbance weakens and moves east, streamer showers still look
possible later tonight and actually for the next couple of nights.

Will add isolated showers for the coastal counties and around the
bays from 09-12z. Looking ahead, no changes to the holiday weekend
forecast as upper level ridging begins to impinge on SE tx from
the east. Overall, the weekend looks warm and dry with just a few
streamer showers late at night. Tweaked hourly grids and raised
mint a degree or so. 43

Preliminary point temps pops
College station (cll) 92 76 91 72 92 30 20 10 0 0
houston (iah) 89 78 90 74 91 50 20 10 0 0
galveston (gls) 85 79 85 78 84 10 10 10 0 0

Hgx watches warnings advisories
Tx... None.

Gm... Small craft advisory until 7 am cdt Friday for the following
zones: coastal waters from freeport to matagorda ship
channel tx out 20 nm... Coastal waters from high island to
freeport tx out 20 nm... Matagorda bay... Waters from
freeport to matagorda ship channel tx from 20 to 60 nm...

waters from high island to freeport tx from 20 to 60 nm.

Small craft should exercise caution until 7 am cdt Friday for
the following zones: galveston bay.

Discussion... 43
aviation marine... 08


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 5 mi36 min SE 8 G 12 79°F 81°F1016.1 hPa
EPTT2 - 8771013 - Eagle Point, TX 10 mi36 min S 16 G 18 80°F 80°F1015.4 hPa
NCHT2 - 8770777 - Manchester, TX 17 mi36 min S 5.1 G 11 78°F 81°F1015.3 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 22 mi36 min SSE 15 G 19 84°F 81°F1015 hPa
GRRT2 22 mi36 min S 14 G 16 79°F 81°F1015.2 hPa
GTOT2 23 mi36 min S 7 G 13 79°F 82°F1015.8 hPa
RLOT2 - 8770971 - Rollover Pass, TX 26 mi36 min S 12 G 17 79°F 80°F1016.5 hPa
HIST2 31 mi36 min SSE 7 G 9.9 78°F 81°F1016.1 hPa
KXIH 38 mi33 min SE 14 G 19 79°F 75°F
LUIT2 38 mi30 min SSE 12 G 15 79°F 82°F1015.6 hPa
42035 - GALVESTON 22NM East of Galveston, TX 40 mi28 min SE 16 G 19 79°F 80°F1016.9 hPa78°F
42043 - GA-252 TABS B 44 mi108 min SE 14 G 18 80°F1015.9 hPa
FCGT2 - 8772447 - USCG Freeport, TX 49 mi36 min SE 17 G 20 82°F1015.8 hPa
FPST2 49 mi30 min SE 18 G 23 82°F1015 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi58 minSE 410.00 miPartly Cloudy77°F71°F83%1016.3 hPa
Houston, Pearland Regional Airport, TX15 mi55 minSSE 910.00 miA Few Clouds78°F73°F85%1016.2 hPa
Houston, Houston Hobby Airport, TX16 mi55 minSE 89.00 miPartly Cloudy78°F72°F82%1016.3 hPa
John Dunn Helistop, TX23 mi53 minVar 48.00 miFair77°F73°F89%1015.9 hPa
Galveston, Scholes Field, TX24 mi56 minSE 1410.00 miMostly Cloudy79°F73°F85%1016.2 hPa

Wind History from EFD (wind in knots)
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Last 24hrSE8SE8SE8SE6--SE12SE14SE12SE14
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Tide / Current Tables for Clear Lake, Harris Co. Park, Texas (2)
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Clear Lake
Click for Map
Fri -- 12:37 AM CDT     Moonrise
Fri -- 06:23 AM CDT     Sunrise
Fri -- 09:05 AM CDT     0.05 feet Low Tide
Fri -- 11:23 AM CDT     Moonset
Fri -- 05:30 PM CDT     0.93 feet High Tide
Fri -- 08:11 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.70.60.50.40.30.20.10.10.10.20.30.40.60.80.90.90.90.90.90.80.80.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Fri -- 12:36 AM CDT     Moonrise
Fri -- 01:30 AM CDT     -1.70 knots Max Ebb
Fri -- 06:15 AM CDT     0.00 knots Slack
Fri -- 06:22 AM CDT     Sunrise
Fri -- 10:24 AM CDT     1.73 knots Max Flood
Fri -- 11:22 AM CDT     Moonset
Fri -- 04:41 PM CDT     -0.00 knots Slack
Fri -- 08:09 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.6-1.7-1.7-1.5-1.2-0.8-0.20.51.11.51.71.71.51.30.90.60.2-0.1-0.4-0.7-0.8-0.9-1-1.1

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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.
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Wind Forecast for Houston/Galveston, TX (4,6,7,8)
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Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current


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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.