Saturday, November28, 2020
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Marine Weather and Tides
Morgan's Point, TX

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:54AMSunset 5:22PM Saturday November 28, 2020 10:56 AM CST (16:56 UTC) Moonrise 4:28PMMoonset 5:16AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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- 953 Am Cst Sat Nov 28 2020
.small craft should exercise caution...
Rest of today..Northeast winds 15 to 20 knots becoming east 20 to 25 knots in the afternoon. Bay waters choppy becoming rough in the afternoon. Showers and a slight chance of Thunderstorms.
Tonight..East winds 20 to 25 knots becoming northeast 15 to 20 knots after midnight. Bay waters rough becoming choppy after midnight. Showers until early morning. A slight chance of Thunderstorms. Showers likely late.
Sunday..Northwest winds 15 to 20 knots. Bay waters choppy. A slight chance of showers early in the morning.
Sunday night..North winds around 20 knots. Bay waters choppy.
Monday..North winds 15 to 20 knots. Bay waters choppy.
Monday night..North winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Tuesday..East winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth.
Tuesday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers late.
Wednesday..Southeast winds 10 to 15 knots becoming east in the afternoon. Bay waters slightly choppy. A chance of showers.
Wednesday night..North winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 953 Am Cst Sat Nov 28 2020
Synopsis for high island to matagorda ship channel out 60 nm.. A cold front will linger near the coast today with periods of unsettled weather prevailing as upper level disturbances pass overhead. A coastal low will move northeastward into the upper texas coastal waters tonight. As this passes, it will drag the front well offshore. Moderate to strong offshore winds and elevated seas will prevail into the early part of the week. Onshore flow will resume and increase Tuesday ahead of the next front expected toward midweek. Offshore flow will develop behind this next front.


7 Day Forecast for Marine Location Near Morgan's Point, TX
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location: 29.66, -95.01     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 281151 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 551 AM CST Sat Nov 28 2020

AVIATION [12Z TAF Issuance].

MVFR to LIFR conditions are expected today as widespread moderate rain moves through the region in response to a surface low and a frontal boundary. Rain coverage is expected to increase this morning and will continue through early Sunday morning. Heavy rain is expected at times. East to northeast winds will transition to the north this evening. Gusts around 15-20 knots possible at KGLS. MVFR/IFR to occasional LIFR conditions will continue through the TAF period. 05

PREV DISCUSSION /Issued 359 AM CST Sat Nov 28 2020/.

SHORT TERM [through Sunday].

A showery Saturday is expected with widespread rain and isolated thunder persisting through early Sunday.

Ongoing showers and isolated storms continue to develop across the region thanks to deep surface convergence and a broad area of isentropic ascent on the 300K surface. More widespread activity will spread through the region today as different disturbances move through the region. Upper-level closed low over the Desert Southwest/western Texas will track through the southern Plains while a coastal surface low develops over the central/middle TX and moves northeast into the forecast area. These disturbances will enhance lift and encourage more vigorous stratiform precipitation throughout the day. Today's thunderstorm potential will be limited due to meager instability and extensive cloud coverage. On the other hand, precipitable water values remain near 1.75-2.00 inches; thus, the potential for localized flash flooding continues into tonight. WPC highlights this threat in their Day-1 Outlook with a Marginal to Slight Risk of heavy rainfall. The main risk falls along and south of I-10 where rainfall rates of 1-2 inches per hour is expected. Additional rain amounts will average around 1 to 3 inches, with locally higher amounts possible.

Temperatures today will be held down by persistent clouds/rain. Daytime highs will mainly be in the 60s and overnight lows from the upper 40s to upper 50s. Rain will end from west to east late tonight into early Sunday with drier and cooler air filtering in. Clouds will be slow to decrease through the day, keeping temperatures in the mid 50s to mid 60s. A gradual clearing is expected by early/mid afternoon. Another concern on Sunday will be breezy to windy conditions as pressure gradient tightens behind the departing upper- low. Gusts from 20 to 30 mph will be possible in the afternoon. 05

LONG TERM [Sunday night through Saturday].

Colder and dry weather is in store for the area Sunday night through Tuesday as strong surface high pressure builds into the state and eventually settles overhead. On Monday, expect lows in the 30s and 40s and highs in the low to mid 50s. Expected clear skies and light winds should allow Monday night-Tuesday morning's lows to fall below freezing for a large part of the area, and freeze warnings will likely be needed. As the high moves off to our east on Tuesday, expect a slight warmup with highs in the upper 50s to lower 60s. Increasing clouds Tuesday night and rising moisture levels in response to the next developing storm system on Wednesday will allow temperatures to warm up a little bit more with rains coming back to the area in a Wednesday-Thursday time period. With continuing model differences showing up for the middle to end of the week, there remains some uncertainty as to when rain chances will end. But it looks like temperatures will remain on the cool side with mid to end of the week lows in the 30s/40s and highs in the 50s/60s.

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MARINE.

A cold front will linger near the coast today with periods of unsettled weather as upper level disturbances pass overhead. A coastal low will move northeastward into the upper Texas coastal waters tonight. As this passes, it will drag the front well offshore. Moderate to strong offshore winds and elevated seas will then prevail into the early part of the week. Will need to monitor the potential for low water conditions in the bays late Sunday into Monday. Onshore flow will resume and increase Tuesday ahead of the next front expected toward midweek. Offshore flow will develop behind this next front.

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CLIMATE.

A record high temperature of 81 degrees was set at Galveston yesterday (November 27th). This breaks the old record of 79 degrees set in 1973.

Records indicate that this is the second highest temperature Galveston has observed this late in November (the 27th through the 30th). The only other time in this time period that the high temperature has been higher than 81 degrees was on November 29th in 2016 when the high reached 82 degrees.

This is also only the third time on record that the high temperature has reached 81 degrees or higher this late in the year. Between November 27th and December 31st, the three highest temperatures in Galveston have been 82 degrees on 11/29/2016, 81 degrees on 11/27/2020 and 81 degrees on 12/13/2016.

All records date back to 1874.

For today (11/28), here are the rainfall records for our four major climate sites.

-CLL is 1.68 inches set in 1952 -IAH is 1.82 inches set in 2001 -HOU is 1.61 inches set in 1942 -GLS is 2.72 inches set in 1942

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PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 62 48 57 38 52 / 90 90 0 0 0 Houston (IAH) 66 54 60 42 54 / 90 90 10 0 0 Galveston (GLS) 69 59 64 48 57 / 90 90 20 0 0

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION through this afternoon 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 . Galveston Bay . 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
MGPT2 - 8770613 - Morgans Point, TX 2 mi56 min E 9.9 G 13 64°F 70°F1018.7 hPa (-0.0)
EPTT2 - 8771013 - Eagle Point, TX 13 mi56 min ENE 12 G 13 66°F 69°F1018.6 hPa (+1.0)
NCHT2 - 8770777 - Manchester, TX 14 mi56 min E 8 G 12 64°F 74°F1018.1 hPa (-0.0)
GRRT2 25 mi56 min ENE 15 G 17 65°F 70°F1018.5 hPa (+0.6)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 26 mi56 min ENE 16 G 18 67°F 69°F1017.8 hPa (+1.2)
GTOT2 27 mi56 min ENE 7 G 13 65°F 71°F1018.9 hPa (+0.9)
RLOT2 - 8770971 - Rollover Pass, TX 28 mi56 min ENE 12 G 15 64°F 66°F1018.9 hPa (-0.0)
HIST2 33 mi56 min ENE 5.1 G 8.9 64°F 69°F1018 hPa (-0.4)
LUIT2 41 mi56 min NNE 9.9 G 12 66°F 70°F1019 hPa (+2.0)
42035 - GALVESTON 22NM East of Galveston, TX 44 mi36 min ENE 16 G 19 67°F 71°F1018.2 hPa65°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX9 mi66 minE 97.00 miLight Rain64°F62°F94%1018.6 hPa
Houston, Houston Hobby Airport, TX14 mi63 minESE 810.00 miLight Rain66°F63°F90%1018.8 hPa
Houston, Pearland Regional Airport, TX16 mi66 minE 78.00 miLight Rain65°F62°F90%1019.1 hPa
John Dunn Helistop, TX21 mi61 minE 10 G 175.00 miFog/Mist63°F62°F100%1017.6 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hrCalmS4S4S4NW8N8NE6E5NE5--NE7NE10E8NE3E7E9E10E7NE6NE6NE6E6N7E9
1 day agoE8E7--E7E7E8E8--E6E6CalmCalmE3SE7CalmE4NE3E4E3SE3SE10S7S6S7
2 days agoNW111NW11N7NW10N5NW7N8N5N4NE4N4NE4N4N4N4--NE3NE6NE6NE6NE5N3E7E8

Tide / Current Tables for Lynchburg Landing, San Jacinto River, Texas
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Lynchburg Landing
Click for Map
Sat -- 05:16 AM CST     Moonset
Sat -- 06:56 AM CST     Sunrise
Sat -- 02:01 PM CST     0.09 feet Low Tide
Sat -- 04:28 PM CST     Moonrise
Sat -- 05:20 PM CST     Sunset
Sat -- 10:57 PM CST     1.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.11.111110.90.80.70.50.40.20.10.10.10.30.50.70.91.11.21.31.3

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Sat -- 03:35 AM CST     0.49 feet Low Tide
Sat -- 05:16 AM CST     Moonset
Sat -- 06:55 AM CST     Sunrise
Sat -- 07:32 AM CST     0.62 feet High Tide
Sat -- 03:15 PM CST     -0.14 feet Low Tide
Sat -- 04:28 PM CST     Moonrise
Sat -- 05:21 PM CST     Sunset
Sat -- 10:52 PM CST     0.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.50.50.50.50.60.60.60.60.40.30.10-0.1-0.1-0.1-00.10.30.50.60.70.7

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
Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current



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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.