Tuesday, March2, 2021
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Marine Weather and Tides
Manvel, TX

Version 3.4
NOTICE
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 6:44AMSunset 6:23PM Tuesday March 2, 2021 5:10 PM CST (23:10 UTC) Moonrise 10:14PMMoonset 9:08AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 322 Pm Cst Tue Mar 2 2021
Tonight..Northeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Wednesday..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth.
Wednesday night..South winds around 5 knots becoming east after midnight. Bay waters smooth.
Thursday..East winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth becoming smooth to slightly choppy in the afternoon.
Thursday night..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers late.
Friday..Southeast winds 5 to 10 knots becoming south in the afternoon. Bay waters smooth. A chance of showers. Isolated Thunderstorms in the late morning and afternoon.
Friday night..North winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Bay waters slightly choppy becoming choppy after midnight. A slight chance of showers in the evening.
Saturday..Northeast winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy in the afternoon.
Saturday night..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..East winds 10 to 15 knots. Bay waters slightly choppy.
Sunday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 322 Pm Cst Tue Mar 2 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Winds have tapered off for the bays and nearshore waters, and moderate winds continue for the offshore waters. Expecting wind speeds to continue to decrease going into the evening hours. By Wednesday morning, winds will veer more northeasterly and become onshore by late Wednesday as surface high pressure moves off to the east. The next front is forecast to move through the waters on Friday evening. Moderate offshore winds will return in the wake of this front.


7 Day Forecast for Marine Location Near Manvel, TX
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location: 29.47, -95.39     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 022030 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 230 PM CST Tue Mar 2 2021

SHORT TERM [Tonight Through Wednesday Afternoon]. Skies have nearly cleared out across the region except for southern portions of the coastal counties. High pressure settles in and winds relax tonight with clear skies and near optimal radiational cooling. Have trended temperatures down towards the bottom of the guidance envelope. Could see some temperatures for Conroe northward get down to 33-37 and Metro 40-42. Warmer near the coast generally mid 40s. Offshore flow weakens and veers which will bring cool and more air into the coastal areas while warmer conditions prevail inland. Borderline Chamber of Commerce weather Wednesday with highs in the upper 60s inland as the upper ridge rebounds over TX.

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LONG TERM [Wednesday Night Through Tuesday].

As surface high pressure continues to push off to the east, onshore flow will be in full effect by Thursday afternoon. Before we get locked in on the upward temperature trend express, be sure to enjoy the cool mornings while you can. Thursday morning will start off with cool temperatures with Wednesday overnight lows in the low-to- mid 40s. With the southeasterly wind picking up throughout the day, highs will reach the upper 60s/low 70s on Thursday afternoon and in the low-to-mid 70s on Friday afternoon. There will be some brief relief on Friday afternoon/evening as a weak cold front pushes through the area. This front will not necessarily bring in much cooler air, it will essentially just hit pause on our warming trend for a day. Rain showers are likely along the frontal boundary as well, especially for locations east of I-45. PW values ranging from 1.00"-1.25" along with upper-level divergence and a shortwave trough would theoretically be enough to get some precipitation going. However, a subsidence inversion around 700 mb will prevent much of the area (especially out west) from seeing any rain during FROPA. As the front moves further east and into a more suitable environment, there will be a small window for isolated thunderstorms for our eastern counties.

Surface high pressure moves in following this front as well with CAA lasting through Sunday morning. High temperatures on Saturday and Sunday will be in the mid-to-upper 60s, with Saturday night becoming quite chilly with lows in mid-to-upper 40s. A pretty nice weekend is on tap for Southeast Texas with plenty of sunshine after dry air filters out most of the cloud cover by Saturday afternoon. Now remember that warming trend that was briefly paused earlier? Well . Here. We. Go. The surface high pressure quickly moves off to the east and places the region back in onshore flow by Sunday night. There is model consensus that this will be quite a lengthy stay with southerly winds prevailing throughout much of next week. This means that temperatures will continue to rise. By Monday, highs will be in the mid 70s and in the upper 70s by Tuesday. You can use your imagination on what Wednesday's high temperatures will be. Did someone says 80s?! Speaking of Wednesday, favorable jet mechanics come into play in the afternoon hours with a developing jet streak. With PW values near 1.50", a slight chance of rain has been included in the grids. This appears to mainly be a setup for warm advection showers ahead of an incoming cold front. 26

MARINE.

Moderate offshore winds continue to prevail following the passage of Monday's cold front. The Small Craft Advisory for the offshore Gulf waters is in effect until 00z. Wind speeds and seas will continue to gradually decrease throughout the afternoon/evening hours. The offshore winds last through tonight before becoming more easterly as surface high pressure moves off to the east. By Wednesday night, onshore flow will return and persist until the next cold front will push through the waters on Friday afternoon/evening. Our next chance of rain comes along with the front with higher PoPs for the eastern half of the waters. In the wake of this front, moderate offshore flow approaching advisory level will return for Friday night/Saturday morning. However, offshore flow will be brief as surface high pressure swiftly moves to the east by Sunday morning. This will mark the beginning of what appears to be an extended stint of onshore flow that lasts well into next week. 26

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 35 68 42 68 49 / 0 0 0 0 10 Houston (IAH) 40 68 43 68 52 / 0 0 0 0 0 Galveston (GLS) 48 58 51 61 57 / 0 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION until 6 PM CST this evening 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.

Small Craft Advisory until 6 PM CST this evening for the following zones: 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.



SHORT TERM . 45 LONG TERM . 26 DSS . KBL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCHT2 - 8770777 - Manchester, TX 19 mi143 min NE 6 G 9.9 61°F 62°F1020.2 hPa
EPTT2 - 8771013 - Eagle Point, TX 25 mi143 min NE 5.1 G 7 57°F 59°F1020.4 hPa
MGPT2 - 8770613 - Morgans Point, TX 26 mi143 min NNW 5.1 G 15 59°F 58°F1020.5 hPa
GRRT2 29 mi143 min NE 13 G 16 55°F 61°F1020.4 hPa
LUIT2 31 mi143 min N 8 G 13 57°F 61°F1020.2 hPa
GTOT2 34 mi143 min N 11 G 14 56°F 59°F1020.6 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 36 mi149 min N 9.9 G 13 55°F 58°F1019.4 hPa
FPST2 37 mi143 min NNW 9.9 G 13 57°F 1019.8 hPa
RLOT2 - 8770971 - Rollover Pass, TX 47 mi143 min N 11 G 15 57°F 57°F1020.5 hPa

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston Southwest Airport, TX5 mi16 minN 810.00 miFair64°F40°F42%1020.7 hPa
Houston, Pearland Regional Airport, TX9 mi18 minNE 1010.00 miFair65°F42°F43%1020.5 hPa
Houston, Houston Hobby Airport, TX14 mi18 minVar 310.00 miA Few Clouds65°F42°F43%1020.5 hPa
Houston / Ellington, TX16 mi21 minN 810.00 miA Few Clouds63°F43°F49%1020 hPa
Houston, Sugar Land Municipal / Hull Field Airport, TX17 mi18 minNE 810.00 miFair65°F41°F42%1020.2 hPa
John Dunn Helistop, TX17 mi16 minN 7 G 1510.00 miFair61°F39°F45%1019.6 hPa

Link to 5 minute data for KAXH

Wind History from AXH (wind in knots)
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Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Tue -- 12:15 AM CST     0.43 feet High Tide
Tue -- 06:16 AM CST     -0.08 feet Low Tide
Tue -- 06:44 AM CST     Sunrise
Tue -- 09:05 AM CST     Moonset
Tue -- 12:37 PM CST     0.49 feet High Tide
Tue -- 06:20 PM CST     Sunset
Tue -- 06:46 PM CST     0.01 feet Low Tide
Tue -- 10:13 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.40.30.20.1-0-0.1-0.100.10.30.40.50.50.40.30.20.10000.10.20.3

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas (2)
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Clear Lake
Click for Map
Tue -- 12:07 AM CST     0.60 feet High Tide
Tue -- 06:25 AM CST     0.09 feet Low Tide
Tue -- 06:44 AM CST     Sunrise
Tue -- 09:05 AM CST     Moonset
Tue -- 12:29 PM CST     0.67 feet High Tide
Tue -- 06:20 PM CST     Sunset
Tue -- 06:53 PM CST     0.18 feet Low Tide
Tue -- 10:13 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.50.40.20.10.10.10.20.30.40.60.70.70.60.50.40.30.20.20.20.30.40.5

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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