Thursday, October21, 2021
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Marine Weather and Tides
Richmond, TX

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:27AMSunset 6:47PM Thursday October 21, 2021 4:46 PM CDT (21:46 UTC) Moonrise 6:36PMMoonset 7:19AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 333 Pm Cdt Thu Oct 21 2021
Tonight..Southeast winds around 5 knots. Bay waters smooth.
Friday..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth.
Friday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms late.
Saturday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms after midnight.
Sunday..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms.
Sunday night..South winds 5 to 10 knots. Bay waters smooth.
Monday..South winds 5 to 10 knots. Bay waters smooth.
Monday night..South winds 5 to 10 knots. Bay waters smooth.
Tuesday..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday night..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers and Thunderstorms in the evening, then a 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 333 Pm Cdt Thu Oct 21 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Light east to southeast winds are expected through the end of the week with generally low seas. Deepening low pressure to the west will help produce slowly strengthening southeast winds over the weekend along with building seas and increasing rain chances.


7 Day Forecast for Marine Location Near Richmond, TX
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location: 29.58, -95.75     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 212118 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 418 PM CDT Thu Oct 21 2021

SHORT TERM [Tonight through Friday Night].

Overall, not much change to the synoptic pattern over the past 24 hours with weak surface high pressure continuing to reside over the area and wind speeds remaining light. With winds expected to become calm once again tonight and model soundings indicating favorable low- level saturation and a relatively strong nocturnal inversion, another period of fog looks to be in store. SREF probabilistic guidance shows the best potential for dense fog roughly along and south of the I-10 corridor, and another Dense Fog Advisory may be needed. As we saw this morning, conditions may once again be difficult for travel come morning commute time and as a result those planning to be on the roads early tomorrow morning should consider leaving themselves some extra time.

A pattern shift will develop tomorrow as the dominant surface high pushes eastward into the Tennessee Valley, allowing for a redevelopment of a more persistent onshore flow. Precipitation chances will start to creep upward by the afternoon along the coast as a more robust plume of moisture pushes towards shore. The greatest chances for showers and storms will remain centered around Matagorda Bay before expanding on coverage on Saturday.

Temperatures continue to run above seasonal normals, with daytime highs in the mid to upper 80s and overnight lows mostly in the upper 60s to lower 70s.

Cady

LONG TERM. [Saturday through Thursday] .

Tightening pressure gradient over the region (via falling surface pressures to our west and the surface high to our east) will help to strengthen onshore winds and increase moisture levels over the CWA this weekend. Warm/humid conditions will persist with perhaps isolated to widely scattered activity developing over the coastal waters early in the morning and spreading inland during the after- noon each day. Highs this weekend will be in the mid to upper 80s with lows in the 70s.

We're still looking for increased POPs next week as the generally zonal flow aloft begins to transition in response to the next mid level trof deepening in the lee of the Rockies. Rain chances will likely be further enhanced as this system taps into Pacific moist- ure (from a possible tropical cyclone) ahead of the a strong cold front by Tues on into Wed. The latest long-range solutions appear to be coming together in terms of timing with these next systems, but we're still talking days 5-7 at this time. For now, will keep with the isolated to scattered POPs (20-40%) already in the grids for this time frame. 41

MARINE.

With very similar conditions to last night expected for tonight, we could see the return of patchy dense fog along/near the immed- iate coast/bays. These lower visibilities should burn off by mid morning tomorrow. Otherwise, no major changes from the generally quiet conditions over our marine waters. Light E/SE winds should continue through Sat. A tightening pressure gradient in response to the next storm system moving into and then deepening over the Southern Plains will likely produce slowly strengthening S to SE winds by late Sat . along with increased chances for showers and thunderstorms. Conditions could approach SCEC criteria Sat night and persist into Sun. This moderate to strong onshore flow is ex- pected to remain in place through first part of next week. 41

PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 67 86 68 86 69 / 10 10 10 30 20 Houston (IAH) 68 86 69 86 71 / 10 10 10 30 20 Galveston (GLS) 74 82 75 83 76 / 10 10 20 30 20

HGX WATCHES/WARNINGS/ADVISORIES. TX . NONE. GM . NONE.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCHT2 - 8770777 - Manchester, TX 28 mi46 min E 4.1G7 85°F 79°F1017.5 hPa (-1.8)
MGPT2 - 8770613 - Morgans Point, TX 41 mi46 min SE 2.9G7 85°F 78°F1018.2 hPa (-1.9)
EPTT2 - 8771013 - Eagle Point, TX 45 mi46 min ENE 1G1.9 78°F 79°F1017.7 hPa (-1.9)
LUIT2 48 mi46 min E 7G8.9 78°F 79°F1017.6 hPa (-1.9)
GRRT2 49 mi46 min ENE 4.1G5.1 81°F 78°F1017.8 hPa (-1.8)

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston, Sugar Land Municipal / Hull Field Airport, TX6 mi53 minNNE 410.00 miMostly Cloudy89°F64°F43%1018 hPa
Houston Southwest Airport, TX15 mi51 minN 07.00 miPartly Cloudy85°F64°F50%1018.3 hPa
Houston Executive Airport, TX17 mi51 minENE 66.00 miFair with Haze86°F68°F55%1018.6 hPa
John Dunn Helistop, TX21 mi51 minE 310.00 miFair86°F63°F46%1017.9 hPa

Link to 5 minute data for KSGR

Wind History from SGR (wind in knots)
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Last 24hr0SE4SE5SE6S4000000000N3NE50N5NE4NE6NE7NE5NE4N4
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2 days agoE8SE9SE5SE5SE5SE4E5E5E7E5E6E3N3N3NE3NE3E6E8E4S9S8
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Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Thu -- 06:01 AM CDT     0.58 feet Low Tide
Thu -- 07:26 AM CDT     Sunrise
Thu -- 08:16 AM CDT     Moonset
Thu -- 10:29 AM CDT     0.79 feet High Tide
Thu -- 05:38 PM CDT     0.10 feet Low Tide
Thu -- 06:43 PM CDT     Sunset
Thu -- 07:33 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 Clear Lake, Harris Co. Park, Texas (2)
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Clear Lake
Click for Map
Thu -- 05:59 AM CDT     0.76 feet Low Tide
Thu -- 07:26 AM CDT     Sunrise
Thu -- 08:16 AM CDT     Moonset
Thu -- 10:20 AM CDT     0.96 feet High Tide
Thu -- 05:43 PM CDT     0.27 feet Low Tide
Thu -- 06:43 PM CDT     Sunset
Thu -- 07:33 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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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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