Thursday, April22, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Jamaica Beach, 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 6:43AMSunset 7:51PM Thursday April 22, 2021 8:33 AM CDT (13:33 UTC) Moonrise 2:13PMMoonset 3:03AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
GMZ355 Expires:202104222115;;936052 Fzus54 Khgx 220845 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 345 Am Cdt Thu Apr 22 2021 Upper Texas Coastal Waters From High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz350-355-222115- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 345 Am Cdt Thu Apr 22 2021
.small craft should exercise caution...
Today..East winds 15 to 20 knots. Seas 2 to 4 feet.
Tonight..Southeast winds 15 to 20 knots. Seas 3 to 5 feet. A slight chance of showers in the late evening and early morning. Isolated Thunderstorms after midnight. A chance of showers late.
Friday..Southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Friday night..South winds 15 to 25 knots becoming southwest 15 to 20 knots after midnight. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of Thunderstorms in the evening. A chance of showers. Isolated Thunderstorms after midnight.
Saturday..West winds 10 to 15 knots becoming northwest in the afternoon. Seas 3 to 5 feet.
Saturday night..North winds 10 to 15 knots becoming northeast after midnight. Seas 2 to 4 feet.
Sunday..East winds 10 to 15 knots becoming around 10 knots in the afternoon. Seas 3 to 4 feet.
Sunday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Monday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Monday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 345 Am Cdt Thu Apr 22 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate easterly winds with become southeasterly through the day today. Small craft should exercise caution through Friday as wind speeds remain near 20 knots and wave heights climb to near 6 feet. Small craft advisories may be necessary late today into Friday. An upper level low will swing through the area on Friday bringing a chance of showers and Thunderstorms. The associated cold front will cross the coastal waters Saturday morning ending the precipitation chances along with brief offshore flow. Onshore winds are expected to return by late Sunday afternoon.


7 Day Forecast for Marine Location Near Jamaica Beach, TX
   Hourly   EDIT   Help
location: 29.2, -94.99     debug


Area Discussion for - Houston/Galveston, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS64 KHGX 220855 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 355 AM CDT Thu Apr 22 2021

SHORT TERM [Through Friday Night]. Surface high pressure is in the process of moving east of the region. Easterly flow along the coast will continue to veer to more of an onshore direction & allow Gulf moisture to begin its return. Partly to mostly sunny conditions early in the day will become cloudy areawide during the afternoon as cloudiness overspreads the region from the southwest. The moisture column will take some time to deepen, and other than some spotty shra's doubt we'll see much in the way of precip until late tonight into Fri morning when we'll see increasing coverage under a strengthening llvl jet.

Large scale lift will increase Fri with the approach of the upper trof to our west. At the sfc, low pres will develop in vicinity of TX/OK Panhandles and the corresponding dryline stretching to the south will and track esewd toward cntl TX during the afternoon. Combination of the above should allow for precip to become widespread across the region as the late morning and afternoon progresses.

Sufficient shear, respectable helicities, somewhat steep mid level lapse rates, and diffluent flow aloft will keep all conditional storm modes/hazards in play during the afternoon into the mid-late evening hours Friday. SPC still has the whole CWA outlooked in a Slight Risk which is reasonable given a bit of model uncertainty in regards to exactly how everything plays out. Areas north of I-10, and more specifically along/north of US-105 may see the higher potential for more significant wx. As one gets further south toward the coast, capping could very well be a limiting factor. In regards to rainfall, expect average amounts of 1-2" north of I-10 with localized higher amounts with any training heavier cells. Precip totals will probably taper down further south to 1/4-1/2" at the beaches. Rain should be pushing out of the area after midnight as the system departs, though we may still see some lingering light precip along the wind shift as it edges toward the coast. 47

.LONG TERM [Saturday Through Thursday]

Some lingering clouds will be possible Saturday morning from Friday night's cold front, but skies will rapidly clear as high pressure builds to the north providing SE Texas an absolutely fantastic weekend. Mostly clear skies, low humidity, and daytime highs temperatures in the low to mid 80s will persist through the weekend. The low moisture values will allow for low temperatures Saturday night to dip down into the low 50s across the north and into the mid to upper 50s across the rest of the area. The high pressure will be fairly progressive as it gets to the Ohio River Valley by Sunday night. This ushers in a more southeasterly wind flow into the area increasing moisture, thus keeping the area a little warmer Sunday night (by around 5 to 10 degrees compared to Saturday night).

An upper level low will be swinging into the Pacific Northwest Sunday night as well. The high pressure to the east and developing low pressure to the west increases southerly flow into the area Monday into Tuesday continuing the warm temperatures, but increases cloud cover. The upper level low exits the Rockies Tuesday night causing a surface low to develop across the Central Plains. This will bring a chance of showers and thunderstorms for our area starting late Tuesday night/early Wednesday through Wednesday evening when the associated cold front moves through the area. There is still some uncertainty on the location/strength of this system and how quickly the front exits the area. But, like the past few system, it looks like areas to the north and east of our region, such as the Red River Valley and into Lousiana, will get the brunt of the precipitation. However, things may change as details come into better view.

Fowler

AVIATION [12Z TAF Issuance].

As cloud cover increases throughout the day, cigs should gradually fall and probably into the 2500-4000ft range by sunset. Continued lowering overnight with MVFR conditions prevailing. Spotty shra will increase in coverage after 9z Friday followed by shra/tsra during the day. 47

MARINE.

Small craft should continue to exercise caution through the day today as wind speeds remain at around 15 to 20kts. The easterly flow this morning will become southeasterly by the late afternoon. Near advisory conditions will start in the late afternoon this evening as wind gusts climb to 25kts and wave heights approach 6ft. The moderate onshore flow will persist through the day on Friday continuing the need for caution flags or small craft advisories. The persistent onshore flow also bring in higher tides and a high risk of rip currents along Gulf facing beaches on Friday. Guidance currently brings high tide on Friday to about 2.5 to 3ft above MLLW. There will be a chance of showers and thunderstorms on Friday as an upper level low swings through the area. The threat of precipitation and the onshore flow ends early Saturday morning as a weak cold front moves through the coastal waters. High pressure builds in over the area for the rest of the weekend causing light and variable winds with wave heights between 3 and 5ft. Onshore flow returns on Monday as the high pressure slides to the east. This flow increases on Tuesday ahead of the next approaching upper level low that moves through the area on Wednesday.

Fowler

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 73 62 77 62 81 / 10 40 90 70 0 Houston (IAH) 72 65 77 67 84 / 0 30 90 70 0 Galveston (GLS) 72 69 77 71 82 / 0 30 70 60 0

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION 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 . 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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GRRT2 9 mi46 min ESE 8 G 9.9 64°F 64°F1020.3 hPa
LUIT2 11 mi46 min E 8.9 G 12 65°F 66°F1020 hPa
GTOT2 13 mi46 min ESE 6 G 8.9 65°F 68°F1020.5 hPa
42043 - GA-252 TABS B 16 mi94 min E 12 70°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi52 min ESE 12 G 16 64°F 66°F1019.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 20 mi46 min ENE 15 G 17 58°F 64°F1020.5 hPa
FPST2 24 mi46 min E 13 G 15 66°F 1019.1 hPa
42035 - GALVESTON 22NM East of Galveston, TX 30 mi34 min E 12 G 19 66°F 70°F1020.1 hPa (+2.2)
MGPT2 - 8770613 - Morgans Point, TX 33 mi46 min NE 11 G 13 55°F 67°F1021.5 hPa
RLOT2 - 8770971 - Rollover Pass, TX 33 mi46 min NE 11 G 13 55°F 59°F1021.3 hPa
NCHT2 - 8770777 - Manchester, TX 39 mi46 min ENE 5.1 G 7 54°F 73°F1021.1 hPa
HIST2 42 mi52 min NE 4.1 G 7 54°F 67°F1021 hPa
SGNT2 45 mi46 min E 8.9 G 13 67°F 67°F1019.2 hPa

Wind History for Galveston Pleasure Pier, TX
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX8 mi42 minE 710.00 miFair65°F51°F61%1020.9 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Jamaica Beach, West Bay, Texas
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Jamaica Beach
Click for Map
Thu -- 04:02 AM CDT     Moonset
Thu -- 06:46 AM CDT     Sunrise
Thu -- 10:20 AM CDT     0.16 feet Low Tide
Thu -- 03:13 PM CDT     Moonrise
Thu -- 05:24 PM CDT     1.02 feet High Tide
Thu -- 07:50 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.90.80.80.80.80.70.60.40.30.20.20.20.30.40.60.80.91110.90.90.80.8

Tide / Current Tables for Bolivar Roads, Texas Current
   EDIT      (on/off)   Help   One Week of Data
Bolivar Roads
Click for Map
Thu -- 04:02 AM CDT     Moonset
Thu -- 06:10 AM CDT     -1.49 knots Max Ebb
Thu -- 06:45 AM CDT     Sunrise
Thu -- 10:49 AM CDT     0.00 knots Slack
Thu -- 02:35 PM CDT     1.67 knots Max Flood
Thu -- 03:12 PM CDT     Moonrise
Thu -- 07:50 PM CDT     Sunset
Thu -- 08:18 PM CDT     -0.00 knots Slack
Thu -- 11:19 PM CDT     -0.62 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.8-0.9-1-1.1-1.3-1.4-1.5-1.5-1.3-1-0.50.10.81.31.61.61.51.10.80.40.1-0.2-0.5-0.6

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station



Gulf Stream Current



Please read website Cookie, Privacy, and Disclamers by clicking HERE.