Thursday, October21, 2021
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Marine Weather and Tides
Jamaica Beach, 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 6:43PM Thursday October 21, 2021 3:11 PM CDT (20:11 UTC) Moonrise 6:34PMMoonset 7:15AM 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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GMZ355 Coastal Waters From High Island To Freeport Tx Out 20 Nm- Waters From High Island To Freeport Tx From 20 To 60 Nm- 355 Am Cdt Thu Oct 21 2021
Today..North winds 5 to 10 knots becoming northeast in the afternoon. Seas 2 feet. A slight chance of showers in the afternoon.
Tonight..East winds 5 to 10 knots. Seas 1 to 2 feet. Patchy fog late.
Friday..East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers after midnight.
Sunday..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Sunday night..South winds 10 to 15 knots. Seas 3 feet.
Monday..South winds 5 to 10 knots. Seas 2 to 3 feet.
Monday night..South winds around 10 knots. Seas 2 to 3 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 355 Am Cdt Thu Oct 21 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Areas of fog will persist through mid morning. 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 Jamaica Beach, TX
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location: 29.2, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 211726 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1226 PM CDT Thu Oct 21 2021

AVIATION [18Z TAF Issuance].

VFR conditions will persist through the remainder of the afternoon following the dissipation of last night's fog and low cigs. However, with little change to the pattern expected and ample low level moisture present once again, we should likely again see visibilities and cigs begin to drop after 06Z as fog begins to develop. The metro and coastal sites appear likely to once again experience IFR visibilities by around 09Z, though a drop to LIFR/VLIFR conditions is not out of the question should periods of dense fog develop. Visibilities and cigs will improve by around 15Z tomorrow morning with the advent of daytime heating and VFR conditions are expected thereafter.

Cady/03

PREV DISCUSSION /Issued 451 AM CDT Thu Oct 21 2021/.

SHORT TERM [Today through Friday Night].

First off - fog this morning. Radiation fog at a premium this morning with calm winds mostly clear skies and drier profile aloft. Have expanded the Dense Fog Advisory into the northeastern counties as well. Weak ridging remains over the area today with light winds and as the fog burns off mid morning expect skies to be partly cloudy with plenty of sunshine and allowing temperatures to warm into the mid 80s to around 90 - about 10 degrees warmer than normal. Temperatures will again fall into the lower 70s this evening and anticipate another round of fog over the area. Rain chances start to creep in over the Gulf and then into the coastal areas on Friday but chances are still low in the 15-30 percent range. Temperatures climb back into he mid/upper 80s on Friday with generally zonal flow aloft over SETX that will start to buckle slightly Friday night as a weak/very weak s/w moves in from the west which may help to nudge up rain chances.

45

LONG TERM [Saturday through Thursday].

Weak mid-level ridge over the Plains will continue to dominate the weather pattern across Southeast TX. At the surface, return flow from the departing high pressure will continue to bring warmer and more humid conditions Saturday and Sunday. Isolated coastal showers are expected in the morning, then developing inland with seabreeze interaction. Daytime temperatures will generally be in the 80s, with slightly warmer readings on Sunday. This is 5 to 10 degrees above normal for this time of year. It will feel a bit muggy on Sunday compared to previous days, with sfc dewpoints reaching the low 70s across most of the region.

After a brief lull in precipitation on Monday, the main weather story for the upcoming week will be the passage of a cold front by midweek. Latest deterministic guidance and most of its ensembles are in better agreement with the timing of this FROPA. The 00Z GFS continues to be the most aggressive solution, bringing in a corridor of Pacific moisture (possibly a tropical cyclone) ahead of the boundary on Tuesday evening. Deterministic ECMWF and Canadian ignore this possibility and are more focused on bringing the closed upper low and its associated front into the region by early Wednesday. With that said, have increasing precipitation chances from late Tuesday into Thursday, placing the time of arrival of the front (wind shift) on Wednesday. Behind the front, breezy conditions will be possible, especially along the coast. 05

MARINE.

Areas of dense fog will continue to develop along the islands and bays through mid morning. Otherwise, benign marine conditions are expected today with light winds and seas. High pressure to our northeast will continue to bring east to southeast flow. This pattern will result in isolated to scattered showers and storms through the weekend. It will be breezy after Saturday with conditions approaching SCEC criteria at times. 05

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 65 86 66 86 69 / 10 0 0 30 10 Houston (IAH) 68 86 67 86 71 / 10 10 10 30 10 Galveston (GLS) 73 84 75 83 76 / 0 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
GRRT2 9 mi54 min ENE 4.1G6 80°F 78°F1018.4 hPa
LUIT2 11 mi54 min ENE 8G8.9 76°F 79°F1018.4 hPa
GTOT2 13 mi54 min NE 2.9G5.1 79°F 78°F1018.5 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi60 min ESE 5.1G6 77°F 78°F1017.9 hPa
EPTT2 - 8771013 - Eagle Point, TX 20 mi54 min E 2.9G4.1 76°F 78°F1018.5 hPa
FPST2 24 mi54 min ENE 9.9G9.9 77°F 77°F1017.8 hPa
42035 - GALVESTON 22NM East of Galveston, TX 31 mi32 min NE 3.9G3.9 77°F 1018.3 hPa73°F
MGPT2 - 8770613 - Morgans Point, TX 33 mi54 min 1019 hPa
RLOT2 - 8770971 - Rollover Pass, TX 33 mi54 min S 5.1G8 79°F 77°F1018.2 hPa
NCHT2 - 8770777 - Manchester, TX 39 mi54 min NE 4.1G6 84°F 78°F1018.3 hPa
HIST2 42 mi54 min SSE 5.1G7 79°F 77°F1018.2 hPa
SGNT2 45 mi54 min E 6G8 78°F 77°F1018.4 hPa

Wind History for Galveston Pleasure Pier, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX8 mi80 minESE 710.00 miPartly Cloudy83°F72°F70%1019.3 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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Last 24hrE9E8SE6E4E4E7SE4E3000000N3N5N6N8N7N6N7N6SE7E6
1 day agoE12E15E11E12E13E9E13E10E9E9E11E9E7E6----N4E6E7NE8NE6E9E8E10
2 days agoE10E6E9E8E8E7SE7SE6SE9SE9SE11SE9SE5SE7SE6S40N6NE8NE9NE9E10E12E13

Tide / Current Tables for Jamaica Beach, West Bay, Texas
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Jamaica Beach
Click for Map
Thu -- 02:50 AM CDT     0.85 feet Low Tide
Thu -- 06:53 AM CDT     1.06 feet High Tide
Thu -- 07:25 AM CDT     Sunrise
Thu -- 08:15 AM CDT     Moonset
Thu -- 02:34 PM CDT     0.30 feet Low Tide
Thu -- 06:43 PM CDT     Sunset
Thu -- 07:33 PM CDT     Moonrise
Thu -- 09:16 PM CDT     1.22 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
Thu -- 12:55 AM CDT     -0.46 knots Max Ebb
Thu -- 03:26 AM CDT     0.00 knots Slack
Thu -- 04:51 AM CDT     0.25 knots Max Flood
Thu -- 06:11 AM CDT     -0.00 knots Slack
Thu -- 07:24 AM CDT     Sunrise
Thu -- 08:14 AM CDT     Moonset
Thu -- 11:09 AM CDT     -1.88 knots Max Ebb
Thu -- 03:03 PM CDT     0.00 knots Slack
Thu -- 06:19 PM CDT     1.94 knots Max Flood
Thu -- 06:42 PM CDT     Sunset
Thu -- 07:32 PM CDT     Moonrise
Thu -- 11:27 PM CDT     -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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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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