Thursday, January23, 2020
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Marine Weather and Tides
Shoreacres, 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 7:12AMSunset 5:50PM Thursday January 23, 2020 12:14 PM CST (18:14 UTC) Moonrise 6:21AMMoonset 4:50PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 952 Am Cst Thu Jan 23 2020
Rest of today..Northwest winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Tonight..North winds 10 to 15 knots. Gusty in the early evening. Bay waters slightly choppy.
Friday..North winds 5 to 10 knots becoming west in the afternoon. Bay waters smooth.
Friday night..South winds around 5 knots becoming east after midnight. Bay waters smooth.
Saturday..East winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the late morning and afternoon.
Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. Showers likely until early morning, then a chance of showers and isolated Thunderstorms late.
Sunday..Northeast winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning. Isolated Thunderstorms. A slight chance of showers in the afternoon.
Sunday night..Northeast winds 5 to 10 knots. Bay waters smooth.
Monday..East winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth.
Monday night..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers late.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 952 Am Cst Thu Jan 23 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Westerly winds will become northwest and north in the wake of a cold front moving off the coast this afternoon. Onshore winds should resume late Friday as high pressure moves to the east. Unsettled weather can be expected late Saturday into Sunday as a coastal low develops off the coast...then tracks east.


7 Day Forecast for Marine Location Near Shoreacres, TX
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location: 29.64, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 231614 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1014 AM CST Thu Jan 23 2020

SHORT TERM [Today Through Friday Afternoon]. Wrap around clouds and CAA playing some havoc with the sky/temperatures forecasts today. Wrap around clouds should expand southeastward then shift east in the late afternoon all while eroding from the west. Temperatures under the cloud cover should struggle to rise through early afternoon whereas the areas with sun should warm up quickly . until the cold front pushes through. Winds becoming northwesterly at 10-15 and gusty at times this afternoon. Cool night on tap with clear to mostly clear skies. 45

MARINE.

Winds relaxing and have become more west and west-northwesterly as surface low near Lake Charles tracks away to the east. Cold front should push off the coast this afternoon and northwesterly winds become dominant and strengthen this evening. Seas of 5-9 feet remain mid morning and should slowly lower then may creep back up tonight as the winds increase. SCA extended well offshore and then have hoisted a SCEC for the overnight hours as winds increase and slows the fall of the wave heights. 45

PREV DISCUSSION /Issued 421 AM CST Thu Jan 23 2020/.

LONG TERM (Friday night through Thursday).

The medium and long range period will be one of unseasonably warmer weather with periodic rain events primarily focused on Saturday night/Sunday and Tuesday.

Energy rotating eastward from a parent broad upper low over Baja /western (mainland of) Mexico will travel up the Texas coastline this weekend. A clear Friday evening and early Saturday will become cloudier from the southwest to northeast . with light precipitation around Matagorda Bay . during the day Saturday as this energy and main shallow open wave trough travel up the coast. An overcast end to Saturday with increasing probabilities for either light rain, drizzle or showers over the southern half and maritime regions late Saturday through Sunday. The highest rainfall amounts are predicted to fall over the Gulf, or just north and east of the lower level trough apex Sunday. While all southeastern Texas counties will pick up precipitation this looks to be a more wet day the further south you go; from around a quarter of an inch across the northern counties to between a half of an inch to an inch across the coastal counties. Weekend temperatures will start out in the near normal overnight 40s but will only cool into the much more mild 50s Sunday morning per the overcast and wet weather brought on by warm air advection. Days will warm into the upper 60s to lower 70s . or be around 10 degrees warmer than normal per late January standards.

Sunday's rain will come to an end by that evening; skies partially clearing out by Monday morning. The next shortwave trough will approach from a higher latitude . swinging into west Texas from the lower Rockies late Monday. Weak transitory ridging will make for a pleasant and dry Monday with morning temperatures falling on either side of 50 F and the afternoon warming to around 70 F. The approach and passage of the western upper shortwave trough on Tuesday will increase rain chances for showers and maybe some thunder. Have not totally bitten on high POPs on Tuesday mainly due to the significant differences between the very wet GFS and the very dry Euro. The tie-breaker Canadian is also dry so have trended POPs downward from the high deterministic GFS but yet higher than the dry Euro-weighted ensemble; low end chances for showers and isolated storms Tuesday. A cold front Wednesday will veer winds around to the northwest and introduce a cooler and drier mid-week air mass. The late period passage of a long wave trough does not look wet and will likely only fortify this Wednesday-Friday cooler and drier regional air mass. So, the period ends dry with subtle Thursday cooling, lower humidity and north winds. 31

AVIATION.

Low cigs and areas fog should redevelop over the I-45 TAF sites in the next few hours. Exactly how low is questionable, but guidance suggests IFR & possibly LIFR. Expect gradual improvement as we head into the late morning hours as we get some mixing. Would anticipate eroding cloudiness and VFR conditions areawide by early afternoon. Light west winds this morning will become northwest and increase to 10-20kt as a cool front makes its way into the area. Mclr skies are expected tonight and Fri. 47

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 62 40 66 40 69 / 10 0 0 0 10 Houston (IAH) 66 45 67 43 71 / 0 0 0 0 10 Galveston (GLS) 66 51 64 55 67 / 10 0 0 0 20

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . Small Craft Advisory until noon CST today 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 SHOULD EXERCISE CAUTION from 4 PM CST this afternoon through late tonight 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 . 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.

Small Craft Advisory until 4 PM CST this afternoon 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/MARINE . 45 LONG TERM . Cady


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi63 min NW 8.9 G 12 61°F 59°F1014.5 hPa
EPTT2 - 8771013 - Eagle Point, TX 12 mi63 min WNW 7 G 9.9 62°F 56°F1014 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi63 min WNW 6 G 8 61°F 62°F1014.5 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi63 min W 6 G 7 61°F 58°F1013.4 hPa
GRRT2 24 mi63 min WNW 7 G 8.9 62°F 57°F1014.3 hPa
GTOT2 25 mi63 min W 4.1 G 6 61°F 59°F1014.3 hPa
RLOT2 - 8770971 - Rollover Pass, TX 27 mi57 min WNW 8.9 G 11 61°F 55°F1014.6 hPa
HIST2 32 mi63 min NW 9.9 G 14 60°F 58°F1013.9 hPa
KXIH 40 mi40 min WNW 13 63°F
LUIT2 40 mi57 min WNW 9.9 G 13 62°F 59°F1016 hPa
42035 - GALVESTON 22NM East of Galveston, TX 42 mi35 min 9.7 G 14 1015.3 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi25 minWNW 810.00 miOvercast63°F55°F77%1013.9 hPa
Houston, Houston Hobby Airport, TX15 mi22 minWNW 910.00 miOvercast63°F53°F70%1015.1 hPa
Houston, Pearland Regional Airport, TX16 mi22 minNW 910.00 miOvercast63°F54°F73%1014.9 hPa
John Dunn Helistop, TX22 mi20 minNW 7 G 1410.00 miOvercast61°F53°F77%1014.9 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hrSE10SE8SE15SE13
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SE10SE14SE13E10SE12SE13SE13SE13S3SE2SW4--W6W5W6W8W8W9W8
1 day agoE10E6E6E6E10SE6--E7E7E7SE8SE7E9NE6NE6NE8NE10N11
G17
E12E9E7E7E7SE10
2 days agoN11--N10
G16
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NE10N5CalmNE5NE5NE5CalmN3--CalmCalmCalmCalmCalmNE3NE4NE5E10E10E7

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 06:19 AM CST     Moonrise
Thu -- 07:12 AM CST     Sunrise
Thu -- 07:42 AM CST     -2.23 knots Max Ebb
Thu -- 12:34 PM CST     0.00 knots Slack
Thu -- 04:11 PM CST     2.11 knots Max Flood
Thu -- 04:50 PM CST     Moonset
Thu -- 05:49 PM CST     Sunset
Thu -- 11:22 PM CST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-0.6-0.6-0.8-1.1-1.5-1.9-2.2-2.2-2.1-1.8-1.3-0.50.41.31.92.121.71.41.20.90.50.1

Weather Map
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wmap_A
GEOS Local Image of SouthCentralPlains    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 (13,3,4,5)
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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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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.