Friday, August7, 2020
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Marine Weather and Tides
Surfside Beach, 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 6:45AMSunset 8:09PM Friday August 7, 2020 7:34 AM CDT (12:34 UTC) Moonrise 9:52PMMoonset 9:17AM Illumination 87% Phase: Waning Gibbous; Moon at 18 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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GMZ355 Coastal Waters From High Island To Freeport Tx Out 20 Nm- Waters From High Island To Freeport Tx From 20 To 60 Nm- 417 Am Cdt Fri Aug 7 2020
Today..Southeast winds 5 to 10 knots. Seas 1 foot.
Tonight..South winds 5 to 10 knots. Seas 1 to 2 feet.
Saturday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and isolated Thunderstorms.
Saturday night..South winds around 10 knots. Seas 2 feet.
Sunday..South winds 5 to 10 knots. Seas 2 feet. A slight chance of showers and Thunderstorms in the morning.
Sunday night..South winds 10 to 15 knots. Seas 2 to 3 feet.
Monday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 2 to 3 feet.
Tuesday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Seas 2 to 3 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 417 Am Cdt Fri Aug 7 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Surface high pressure over the northeast gulf of mexico will continue to bring light winds and low seas to the area. A more pronounced onshore flow is anticipated this weekend through early next week as the high moves further east.


7 Day Forecast for Marine Location Near Surfside Beach, TX
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location: 29.04, -95.18     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 070914 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 414 AM CDT Fri Aug 7 2020

SHORT TERM [Today Through Saturday].

While surface moisture today will be in place, the mid to upper levels will be a little too dry for good chances of convection. PWI's will be roughly 1.75 in the area at the time of max heating, and the temperatures are forecasted to be in the low to upper 90s. This passes the low 90s convective temperatures across the area. With that said, a few stray thunderstorms are possible in the area, but not to the point of being able to say exactly where. Right now, it looks like subsidence from the high will keep any build up from happening. Lows will get down to the mid 70s across the are overnight with mostly clear skies.

Tomorrow moisture returns to the mid to upper levels elevating chances of precipitation. However, vicinity of the high will still help keep chances somewhat low. Showers building over the coastal waters could advect inland as the evening sea breeze kicks in and further develops into thunderstorms, but coverage will be spotty. PWIs will be higher, along with higher instability; the possibility of a thunderstorm is possible. 35

LONG TERM [Saturday Night through Friday].

Mid/upper level ridging across the state at the start of the long term period will edge westward and will be centered in/ around the Arizona/New Mexico border for much of next week. Our area will generally be positioned between this ridge off to our west and ridging that will be off the SE U.S. coast. A persistent onshore flow and our positioning between the two ridges should allow for almost daily mainly diurnally driven shower and/or thunderstorm chances.

Little change in temperatures can be expected, with lows in the mid to upper 70s inland and in the lower 80s near the coast, and highs in the mid to upper 90s inland and in the lower 90s near the coast. We will need to keep an eye on our max heat index values with current forecasts showing some elevated readings Sunday through Wednesday. Even if there is no heat advisory, always protect yourself and your loved ones, including pets, if you plan to spend time outdoors or in areas with poor ventilation. Always practice heat safety! 42

AVIATION [12Z TAF Issuance].

MVFR to IFR conditions in the northern TAF sites as mist and some lower ceilings drifts around the area. Shortly after sunrise, the area will be VFR with mostly clear to partly cloudy skies. Chances of any convection cannot be ruled out, but the chances are low enough to the point of omitting VCTS/VCSH sounded best. Tonight will mostly be a repeat. Mostly clear skies and some mist with lower ceilings will be in the area, but concentrated to the northern flying area. Tomorrow will have higher rain chances as well as afternoon convection. 35

MARINE.

No real changes from the previous marine discussion. Light winds and low wave heights through the weekend. Early next week, stronger onshore flow returns. So the typical summer pattern of stronger winds at night and lighter winds during the day will be the pattern in the coastal waters. Bay areas will see stronger day time winds and lighter winds at night. 35

PREV DISCUSSION /Issued 1156 PM CDT Thu Aug 6 2020/.


PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 97 76 97 75 99 / 0 0 0 0 10 Houston (IAH) 95 77 94 77 95 / 10 0 20 0 20 Galveston (GLS) 90 81 90 82 93 / 10 10 20 0 20

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . None.



SHORT TERM . 35 LONG TERM . 42 AVIATION . 35 MARINE . 35


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LUIT2 4 mi47 min SSE 1.9 G 4.1 83°F 86°F1017.7 hPa
FPST2 9 mi47 min SE 6 G 8.9 84°F 89°F1015.2 hPa
42043 - GA-252 TABS B 15 mi95 min SE 3.9 G 5.8 86°F1016.1 hPa (+0.3)
GRRT2 24 mi47 min S 2.9 G 4.1 84°F 88°F1016 hPa
GTOT2 28 mi47 min Calm G 1.9 84°F 88°F1016.2 hPa
SGNT2 30 mi47 min SSE 6 G 8 84°F 88°F1015.6 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 33 mi53 min ESE 4.1 G 5.1 85°F 86°F1015.3 hPa
EPTT2 - 8771013 - Eagle Point, TX 34 mi47 min WNW 1.9 G 2.9 82°F 88°F1016.1 hPa
42035 - GALVESTON 22NM East of Galveston, TX 43 mi35 min SE 1.9 G 1.9 85°F 87°F1015.8 hPa (+0.9)80°F
EMAT2 45 mi47 min SE 6 G 8 84°F 88°F1015.4 hPa
MGPT2 - 8770613 - Morgans Point, TX 46 mi47 min W 1 G 1.9 83°F 87°F1016.7 hPa
NCHT2 - 8770777 - Manchester, TX 48 mi47 min SW 1.9 G 4.1 82°F 88°F1016 hPa
RLOT2 - 8770971 - Rollover Pass, TX 48 mi47 min NE 5.1 G 5.1 85°F1016.7 hPa

Wind History for USCG Freeport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Angleton / Lake Jackson, Brazoria County Airport, TX16 mi42 minN 04.00 miFog/Mist75°F73°F94%1016.6 hPa
Galveston, Scholes Field, TX23 mi43 minN 010.00 miFair84°F77°F80%1016.6 hPa

Link to 5 minute data for KLBX

Wind History from LBX (wind in knots)
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Last 24hrN3CalmS7SW6SE7S9S9SE11S12S8SE7S7S6S4CalmCalmCalmCalmCalmCalmCalmCalmN3Calm
1 day agoCalmSW34W3S7S9S8S9S6S8S8S8S5S3S3CalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalm34Calm5CalmSW6S64S10S9S6S5S4S4S4CalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Christmas Point, Christmas Bay, Texas
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Christmas Point
Click for Map
Fri -- 03:26 AM CDT     0.12 feet Low Tide
Fri -- 06:45 AM CDT     Sunrise
Fri -- 10:16 AM CDT     Moonset
Fri -- 10:52 AM CDT     0.78 feet High Tide
Fri -- 04:15 PM CDT     0.52 feet Low Tide
Fri -- 08:07 PM CDT     Sunset
Fri -- 09:40 PM CDT     0.69 feet High Tide
Fri -- 10:51 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Alligator Point, West Bay, Texas
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Alligator Point
Click for Map
Fri -- 03:28 AM CDT     0.12 feet Low Tide
Fri -- 06:44 AM CDT     Sunrise
Fri -- 10:16 AM CDT     Moonset
Fri -- 10:59 AM CDT     0.78 feet High Tide
Fri -- 04:17 PM CDT     0.52 feet Low Tide
Fri -- 08:07 PM CDT     Sunset
Fri -- 09:47 PM CDT     0.69 feet High Tide
Fri -- 10:51 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (8,2,3,4)
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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.