Wednesday, July15, 2020
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Marine Weather and Tides
Texas City, TX

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:29AMSunset 8:22PM Wednesday July 15, 2020 2:44 AM CDT (07:44 UTC) Moonrise 1:22AMMoonset 2:57PM Illumination 26% Phase: Waning Crescent; Moon at 25 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- 1018 Pm Cdt Tue Jul 14 2020
Rest of tonight..South winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..South winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday night..South winds 10 to 15 knots becoming southwest 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Thursday..South winds 5 to 10 knots. Bay waters smooth.
Thursday night..South winds 5 to 10 knots. Bay waters smooth. Isolated showers and Thunderstorms after midnight.
Friday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Friday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Saturday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Saturday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1018 Pm Cdt Tue Jul 14 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore winds will persist through the remainder of the week. Speeds over the bays will typically be higher during the day and offshore at night. Isolated to scattered showers and Thunderstorms will re-enter the forecast later this week and weekend.


7 Day Forecast for Marine Location Near Texas City, TX
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location: 29.47, -94.77     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 150440 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1140 PM CDT Tue Jul 14 2020

AVIATION [06Z TAF Issuance].

Not much change in the forecast with southerly flow continuing through the period. MVFR CIGS of around 1500-2000 ft is expected to develop tonight like that past few nights for IAH northward. SGR and HOU do also have the potential for some brief periods of MVFR CIGS, but have kept them VFR all night long as most guidance indicates that the clouds will remain generally north of I-10. VFR conditions then begin tomorrow morning area-wide which will last through tomorrow evening.

Fowler

PREV DISCUSSION /Issued 654 PM CDT Tue Jul 14 2020/.

SHORT TERM [Tonight through Tomorrow/Wednesday].

Will be holding off with issuing a Heat Advisory for tomorrow with this package. It's not to say that it won't be hot/warm, it's more that heat index values are forecast to be under criteria for an Ad- visory at this time. However, later shifts could opt for one given more data/model runs. But in the meanwhile, it looks like the ever so subtle shift of the low-level winds to the south along with the increases in speed have helped to keep heat index values over SETX at more manageable levels this afternoon. And with the surface high that has been persisting over the eastern Gulf now slowly drifting north, the trend of a more S/SE winds at the lower/mid levels will factor in moderating our daytime temperatures tomorrow as well. As a point of reference, normals for this time of year range from the mid 90s inland to the lower 90s along the coast. Still no POPs for the CWA through tomorrow. 41

LONG TERM [Wednesday Night through Tuesday].

As the mid/upper level ridge axis works its way to our north, models are continuing to show some decent agreement in the development of an inverted trough around the southern Louisiana area. This feature will work its way toward the Texas coast around the end of the week and will help to bring some rain chances back to our area. We could see some shower and/or thunderstorm development beginning Thursday afternoon, but much better chances look to be setting up for Friday. As the trough continues moving off to the west over the weekend, some ridging from the north builds back into the area resulting in some lower mainly daytime rain chances for both Saturday and Sunday and maybe even on Monday. Some model differences begin to show up for the start of next week with regards to the next westward moving Gulf trough, but have generally gone with an increase in rain chances for Monday and Tuesday. Look for some forecast changes/adjustments for this time period over the next several days as models come into better agreement.

As for temperatures, a slow/general decrease in afternoon highs can be expected for most of the area in this long term period resulting in readings closer to mid July normals. At this time, no Heat Advisory is anticipated. 42

MARINE.

The elevated southerly flow over the bays this afternoon should be on the decrease this evening as winds decouple. Otherwise, we will continue to see this slight shift of winds to the south on through the end of the week . then becoming more southeasterly as the sur- face high that has lingered over the eastern Gulf drifts further N with time. This should allow for increasing chances for shower and thunderstorm development by the end of the week. In the meanwhile, we'll continue to monitor the wind speeds as they flirt near SCEC/ Caution levels (15-20kt) at times over the bays during the day and offshore at night. 41

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 77 99 77 98 76 / 0 0 0 0 0 Houston (IAH) 80 98 79 97 78 / 0 0 0 20 0 Galveston (GLS) 83 92 82 89 82 / 0 0 0 10 10

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION until 5 AM CDT Wednesday 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.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 8 mi74 min 87°F1014 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 8 mi74 min 82°F1013.4 hPa
GTOT2 11 mi74 min 88°F1014.1 hPa
GRRT2 13 mi74 min 87°F1013.8 hPa
RLOT2 - 8770971 - Rollover Pass, TX 14 mi74 min 86°F1014.7 hPa
MGPT2 - 8770613 - Morgans Point, TX 19 mi74 min 89°F1014.3 hPa
HIST2 22 mi74 min 88°F1014.4 hPa
42035 - GALVESTON 22NM East of Galveston, TX 25 mi44 min S 12 G 16 84°F 1013.6 hPa (-0.8)80°F
NCHT2 - 8770777 - Manchester, TX 32 mi74 min 87°F1013.7 hPa
LUIT2 33 mi74 min 85°F1015.6 hPa
42043 - GA-252 TABS B 34 mi104 min S 14 G 18 84°F1014.3 hPa
FPST2 46 mi74 min 88°F1012.9 hPa

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX15 mi52 minS 1210.00 miFair85°F77°F77%1014.4 hPa
Houston / Ellington, TX24 mi1.9 hrsSSE 510.00 miPartly Cloudy79°F75°F89%1014.2 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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Tide / Current Tables for Port Bolivar, Galveston Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Wed -- 02:21 AM CDT     Moonrise
Wed -- 02:37 AM CDT     1.66 knots Max Flood
Wed -- 06:29 AM CDT     Sunrise
Wed -- 08:56 AM CDT     -0.00 knots Slack
Wed -- 03:56 PM CDT     Moonset
Wed -- 06:51 PM CDT     -1.84 knots Max Ebb
Wed -- 08:20 PM CDT     Sunset
Wed -- 11:14 PM CDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.31.61.61.51.10.80.50.3-0-0.3-0.4-0.5-0.6-0.7-0.9-1.2-1.5-1.8-1.8-1.7-1.4-0.9-0.2

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (3,6,7,8)
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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 numerous 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.