Tuesday, October19, 2021
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Marine Weather and Tides
Clear Lake Shores, 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 7:23AMSunset 6:46PM Tuesday October 19, 2021 4:51 PM CDT (21:51 UTC) Moonrise 5:34PMMoonset 5:26AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 324 Pm Cdt Tue Oct 19 2021
Rest of today..Southeast winds around 10 knots. Bay waters smooth to slightly choppy.
Tonight..East winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..Northeast winds 5 to 10 knots becoming east in the afternoon. Bay waters smooth. A slight chance of showers until late afternoon.
Wednesday night..Southeast winds 5 to 10 knots becoming east after midnight. Bay waters smooth. A slight chance of showers after midnight.
Thursday..Northeast winds 5 to 10 knots becoming east in the afternoon. Bay waters smooth.
Thursday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Friday..East winds around 5 knots becoming southeast in the afternoon. Bay waters smooth.
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 in the afternoon.
Saturday night..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 324 Pm Cdt Tue Oct 19 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Light to occasionally moderate winds and low seas are expected through this evening. Caution conditions will be possible tonight into early Wednesday as a weak surface low moves over the northwestern gulf. With a high pressure to the east and a low pressure over the plains, moderate onshore flow and better precipitation chances are expected this weekend.


7 Day Forecast for Marine Location Near Clear Lake Shores, TX
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location: 29.55, -95     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 192032 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 332 PM CDT Tue Oct 19 2021

SHORT TERM [Through Wednesday Night].

Even with a more pronounced onshore flow across SE TX today, the air mass appears to be taking its time in moistening back up. Dewpoints have still mixed out down into the upper 50s to lower 60s over much of the CWA so far this afternoon. Short-range models are continuing to keep the surge of deeper moisture well east of here (more toward LA/MS) tonight and tomorrow. As such, the highest POPs (around 20%) will likely be over our coastal waters and SE coastal counties (ie. Galveston and Chambers) during this time frame. Temperatures should continue to slowly warm through tomorrow night as well. Lows for to- night to range from the lower/mid 60s north to the mid/upper 60s to the south. Tomorrow's highs will warm into the mid 80s. So, overall still pleasant fall weather but a little warmer with slowly increas- ing humidities. 41

LONG TERM [Thursday Through Tuesday].

A cold front associated with a low pressure system moving through the Great Lakes region will be stalled out across the Red River Valley area, which is where it will stay through the rest of the week. SE Texas will be in the continued moist, east-southeasterly flow pumping PWATs of 1.4 to 1.5" into the area. The increase in moisture will lead to isolated showers near the coast, but lacking upper level support (zonal flow) will keep rain chances at a minimum. High pressure sinks down across the Ohio Valley/East Coast this weekend with a low pressure system entering into the Central Plains will lead to an increase in southerly flow across Texas. This will bump up the moisture content a bit more (PWATs up to around 1.6") leading to slightly better chances for showers or thunderstorms. This southerly flow will continue into Tuesday with the next front for our area not seen until beyond the end of long term.

High temperatures through the long term will be in the upper 80s with some isolated spots in the low 90s near the Houston Metro. Overnight lows will start out in the upper 60s and continue to warm into the low to mid 70s by next week, which is about 10 degrees above the normal values.

Fowler

MARINE.

A weak disturbance in the northern Gulf will lead to an increase to the southeasterly flow tonight to around 15 knots in the waters off of Galveston Bay, which is borderline caution criteria. Will not issue a SCEC at this time, but mariners should check back this evening for any updates. Light diurnally driven winds will then start up Wednesday and continue on Thursday. South-southeasterly winds will become predominate this weekend and continue into next week. Wave heights of 2 to 3ft with occasional seas of 4ft will continue through Saturday. Wave heights of 3 to 4 feet start on Sunday thanks to the continued onshore flow.

Fowler

PREV DISCUSSION /Issued 1230 PM CDT Tue Oct 19 2021/.

AVIATION [18Z TAF Issuance].

No major changes from the overall VFR forecast from the previous package. S/SE winds have picked up some at a couple of the term- inals (up to around 10kts with gusts over 15kts), and this trend could occur at our other sites through the rest of the afternoon. For late tonight and early tomorrow morning, patchy fog/probably MIFG will be possible near LBX/CXO as low-level moisture deepens across the CWA. Closer to the coast, patchy low clouds/MVFR CIGS (versus BR) will be possible through mid morning. CU field could be a more widespread tomorrow afternoon but rain chances are ex- pected to remain very low/nil for most of SE TX save for the far SE/coastal locations. 41

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 63 84 65 86 65 / 0 0 0 10 10 Houston (IAH) 65 85 68 87 67 / 0 10 10 10 10 Galveston (GLS) 74 82 74 82 74 / 10 20 20 10 20

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 6 mi51 min E 14G17 75°F 74°F1016.6 hPa (-1.4)
GRRT2 18 mi51 min E 11G14 77°F 74°F1016.5 hPa (-1.4)
NCHT2 - 8770777 - Manchester, TX 19 mi51 min S 2.9G7 78°F 78°F1016.2 hPa (-1.6)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 20 mi51 min E 14G19 75°F 76°F1016 hPa (-1.3)
GTOT2 20 mi51 min ESE 9.9G15 77°F 78°F1016.6 hPa (-1.4)
RLOT2 - 8770971 - Rollover Pass, TX 26 mi51 min ESE 13G16 75°F 77°F1016.7 hPa (-1.4)
HIST2 32 mi51 min E 12G14 75°F 76°F1017 hPa (-1.3)
LUIT2 33 mi51 min E 7G8.9 77°F 77°F1016.3 hPa (-1.5)
42035 - GALVESTON 22NM East of Galveston, TX 38 mi31 min E 14G18 76°F 1016.7 hPa69°F
FPST2 45 mi51 min E 11G12 77°F 78°F1015.6 hPa (-1.5)

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi61 minE 1410.00 miPartly Cloudy79°F66°F65%1016.9 hPa
Houston, Pearland Regional Airport, TX13 mi58 minSE 1010.00 miMostly Cloudy80°F67°F64%1017 hPa
Houston, Houston Hobby Airport, TX16 mi58 minE 1310.00 miMostly Cloudy82°F66°F58%1017 hPa
Galveston, Scholes Field, TX21 mi59 minE 1210.00 miPartly Cloudy81°F68°F65%1017.2 hPa
John Dunn Helistop, TX24 mi56 minESE 9 G 1410.00 miMostly Cloudy79°F64°F61%1016.3 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hrE6E6E50SE4SE50E70E3--0--N60NE3NE4NE8NE9E9E7E10E11
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1 day agoE4SE4SE300S2000000000NE3NE5NE7NE8NE6NE5SE10SE5NE3
2 days agoN14
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N12N9NW5N4N4000000000N4N4NE6E10E12E11NE7N7NE5

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Tue -- 04:37 AM CDT     0.33 feet Low Tide
Tue -- 06:25 AM CDT     Moonset
Tue -- 07:24 AM CDT     Sunrise
Tue -- 10:11 AM CDT     0.79 feet High Tide
Tue -- 04:45 PM CDT     0.27 feet Low Tide
Tue -- 06:33 PM CDT     Moonrise
Tue -- 06:45 PM CDT     Sunset
Tue -- 10:59 PM CDT     0.87 feet High Tide
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 Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Tue -- 01:39 AM CDT     0.00 knots Slack
Tue -- 04:18 AM CDT     0.97 knots Max Flood
Tue -- 06:24 AM CDT     Moonset
Tue -- 07:05 AM CDT     -0.00 knots Slack
Tue -- 07:23 AM CDT     Sunrise
Tue -- 11:20 AM CDT     -1.31 knots Max Ebb
Tue -- 02:31 PM CDT     0.00 knots Slack
Tue -- 05:08 PM CDT     1.04 knots Max Flood
Tue -- 06:32 PM CDT     Moonrise
Tue -- 06:44 PM CDT     Sunset
Tue -- 08:32 PM CDT     -0.00 knots Slack
Tue -- 11:47 PM CDT     -0.61 knots Max Ebb
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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GEOS Local Image of SouthCentralPlains    EDIT
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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