Houston, TX Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Houston, TX

April 12, 2024 4:04 PM CDT (21:04 UTC) Change Location
Sunrise 6:55 AM   Sunset 7:48 PM
Moonrise 8:41 AM   Moonset 11:34 PM 
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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.

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Marine Forecasts
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GMZ335 Expires:202404130815;;630697 Fzus54 Khgx 121943 Cwfhgx
coastal waters forecast for texas national weather service houston/galveston tx 243 pm cdt Fri apr 12 2024
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.
gmz330-335-130815- matagorda bay-galveston bay- 243 pm cdt Fri apr 12 2024

Tonight - Southeast winds 10 to 15 knots. Bay waters slightly choppy.

Saturday - Southeast winds around 15 knots, increasing to 15 to 20 knots late. Bay waters slightly choppy, becoming choppy late.

Saturday night - South winds 15 to 20 knots. Gusts to 35 knots late in the evening. Bay waters choppy.

Sunday - South winds around 15 knots, increasing to 15 to 20 knots in the afternoon. Bay waters choppy.

Sunday night - South winds 15 to 20 knots, diminishing to around 15 knots late. Bay waters choppy, becoming slightly choppy late.

Monday - Southeast winds around 20 knots, increasing to 20 to 25 knots in the afternoon. Bay waters choppy, becoming rough in the afternoon.

Monday night - Southeast winds 20 to 25 knots, becoming south around 20 knots after midnight. Bay waters rough, becoming choppy after midnight.

Tuesday - South winds around 15 knots. Bay waters slightly choppy to choppy.

Tuesday night - South winds 10 to 15 knots. Bay waters slightly choppy.

Wednesday - Southeast winds 10 to 15 knots. Bay waters slightly choppy.

Wednesday 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 243 Pm Cdt Fri Apr 12 2024

Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
onshore flow should strengthen over the weekend, potentially warranting caution flags at times. Petss guidance indicates water levels in the bays dropping 0.8 ft below mllw overnight into early Saturday morning with low tide. Low water advisories may be warranted, though strengthening onshore winds may keep water levels above the -1.0 ft threshold. Small craft advisories may be needed on Monday night & Tuesday as winds approach 15 to 25 knots and seas reach 5 to 7 feet.


7 Day Forecast for Marine Location Near Houston, TX
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Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 121942 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 242 PM CDT Fri Apr 12 2024

New SHORT TERM, LONG TERM, MARINE

SHORT TERM
(This evening through Saturday Night)
Issued at 239 PM CDT Fri Apr 12 2024

Comfortable weather out there for April standards with mostly sunny skies, light to moderate winds and low humidity. Sfc high pressure will continue to move eastward, shifting winds to a more southeasterly component this afternoon and evening. Dry weather continues as subsidence aloft strengthen with the passing of the upper-level ridge axis tonight. A few shortwaves embedded along the ridge will move tonight; though with strong subsidence only high clouds can be expected. Overnight lows into the upper 50s to low 60s degF range can be expected.

A surface low pressure will develop across the Northern Rockies/High Plains, tightening the pressure gradient over the Plains on Saturday. Looking at 850mb, models also continue to suggest a strengthening LLJ over the region, allowing for breezy conditions at the surface and and a moderate surge of low-level moisture. With that being said, Saturday is shaping up to be dry and slightly warmer with breezy south to southeast winds, mainly in the afternoon. Highs into the upper 70s to low 80s can be expected. Ridging aloft will temporarily weaken by Saturday night as the trough moves through the Plains. This will result in increasing low-moisture and persistent southerly surface flow; thus, a mild night can be expected with lows mainly in the 60s.

JM

LONG TERM
(Sunday through next Thursday)
Issued at 239 PM CDT Fri Apr 12 2024

Pleasant weather should continue on Sunday and into beginning of next week as ridging remains in place aloft. Surface high pressure over the SE CONUS keeps onshore flow in place, allowing for temperatures to rise over the next several days as humid gulf air is funneled into SE Texas. Highs on Sunday will be in the upper 70s to mid 80s with Monday morning lows in the 60s. An upper level trough should fill in over the Four Corners/Plains during the first half of the upcoming work week. PWs are progged to reach 1.2-1.6" around this time. Weak impulses and a 30-40 knot LLJ will provide some support for storm development during the afternoon/evening hours as these features move in from the west ahead of an approaching cold front/dry line. However, robust capping around 925-850mb still appears to largely suppress rain chances ahead of this frontal boundary in SE Texas. Furthermore, current guidance indicates that this cold front will slow/stall over portions of the Brazos Valley during the early morning hours of Tuesday.

Capping looks to weaken in areas closer to this stalled boundary on Tuesday, enough to allow some isolated showers/storms to develop/move into the north/northwestern fringes of our CWA
Rising instability/shear and forcing from the aforementioned frontal boundary could provide enough support for a few stronger storms to develop in these locations on Tuesday, especially with support from the LLJ still in place and PWs pooling to 1.6-2.0" ahead of the boundary. The rest of SE Texas appears to be sufficiently capped to suppress rain chances on Tuesday, allowing the warming trend to continue into Wednesday. Highs will be in the 80s with isolated locations reaching the 90 degree mark.
Meanwhile, overnight lows for mid-week will be in the upper 60s to lower 70s. The stalled boundary looks to drift north slightly on Wednesday, while weaker impulses pass over SE Texas. Even though PWs will still be in the range of 1.0-1.6 inches, dry conditions in the mid-levels of the atmosphere may evaporate any precipitation that does develop aloft.

Long range guidance indicates that another upper level trough will swing across the Northern Plains/Upper Great Lakes on Thursday. This system is progged to push a cold front through SE Texas late Thursday afternoon into Friday morning as a broad 1038-1042mb surface high drops into the Rockies/Plains. Highs for Thursday will depend on the timing of this FROPA. Compressional heating could bring warmer temperatures in areas where the FROPA occurs after peak heating. Cooler, drier and breezier weather can be expected across the region by Friday morning behind the front.

03

AVIATION
(18Z TAF Issuance)
Issued at 1223 PM CDT Fri Apr 12 2024

VFR conditions will prevail through this TAF cycle. Winds will transition to the SSE this afternoon around 10 knots. Slightly higher winds will be possible at times through sunset. Winds become light and variable tonight, before becoming breezier by mid/late Saturday morning.

JM

MARINE
Issued at 239 PM CDT Fri Apr 12 2024

Onshore flow should strengthen over the weekend, potentially warranting caution flags at times. PETSS guidance indicates water levels in the bays dropping 0.8ft below MLLW overnight into early Saturday morning with low tide. Low water advisories could be warranted, though strengthening onshore winds could keep water levels above the -1.0ft threshold. Small Craft Advisories may be needed on Monday night & Tuesday as winds approach 15 to 25 knots and seas reach 5 to 7 feet.

03

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 55 82 62 83 / 0 0 0 0 Houston (IAH) 57 83 63 84 / 0 0 0 0 Galveston (GLS) 67 76 69 76 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NCHT2 - 8770777 - Manchester, TX 4 mi46 min S 2.9G8 79°F 30.21
MGPT2 - 8770613 - Morgans Point, TX 19 mi46 min SSE 7G11 76°F 73°F30.24
EPTT2 - 8771013 - Eagle Point, TX 28 mi46 min SSE 9.9G11 76°F 72°F30.24
GRRT2 38 mi46 min ESE 7G9.9 73°F 72°F30.23
GTOT2 41 mi46 min SE 7G12 73°F 72°F30.25
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi46 min SSE 8.9G9.9 70°F 71°F30.23
RLOT2 - 8770971 - Rollover Pass, TX 46 mi46 min S 8.9G12 71°F 75°F30.24
LUIT2 47 mi46 min ESE 8G11 73°F 72°F30.25


Wind History for Manchester, TX
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KHOU WILLIAM P HOBBY,TX 7 sm71 minESE 0610 smA Few Clouds81°F36°F20%30.25
KEFD ELLINGTON,TX 13 sm70 minESE 07G1610 smClear79°F41°F26%30.25
KLVJ PEARLAND RGNL,TX 16 sm71 minESE 0710 smClear81°F36°F20%30.27
KIAH GEORGE BUSH INTERCONTINENTAL/HOUSTON,TX 17 sm71 minESE 0510 smPartly Cloudy81°F41°F24%30.24
KAXH HOUSTONSOUTHWEST,TX 18 sm29 minSE 0610 smClear81°F46°F30%30.24
KSGR SUGAR LAND RGNL,TX 19 sm71 minvar 0510 smClear81°F46°F30%30.24
Link to 5 minute data for KMCJ


Wind History from MCJ
(wind in knots)
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Tide / Current for Lynchburg Landing, San Jacinto River, Texas
   
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Lynchburg Landing
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Fri -- 06:29 AM CDT     -0.23 feet Low Tide
Fri -- 06:56 AM CDT     Sunrise
Fri -- 09:39 AM CDT     Moonrise
Fri -- 03:54 PM CDT     1.45 feet High Tide
Fri -- 07:45 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Lynchburg Landing, San Jacinto River, Texas, Tide feet
12
am
1
1
am
0.8
2
am
0.5
3
am
0.3
4
am
0.1
5
am
-0.1
6
am
-0.2
7
am
-0.2
8
am
-0.1
9
am
0.1
10
am
0.4
11
am
0.7
12
pm
1
1
pm
1.2
2
pm
1.4
3
pm
1.4
4
pm
1.4
5
pm
1.4
6
pm
1.4
7
pm
1.3
8
pm
1.3
9
pm
1.2
10
pm
1.2
11
pm
1.2



Tide / Current for Clear Lake, Harris Co. Park, Texas
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Clear Lake
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Fri -- 06:56 AM CDT     Sunrise
Fri -- 07:39 AM CDT     -0.43 feet Low Tide
Fri -- 09:40 AM CDT     Moonrise
Fri -- 04:46 PM CDT     0.85 feet High Tide
Fri -- 07:45 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Clear Lake, Harris Co. Park, Texas, Tide feet
12
am
0.7
1
am
0.6
2
am
0.5
3
am
0.3
4
am
0
5
am
-0.2
6
am
-0.3
7
am
-0.4
8
am
-0.4
9
am
-0.3
10
am
-0.2
11
am
0
12
pm
0.3
1
pm
0.5
2
pm
0.7
3
pm
0.8
4
pm
0.8
5
pm
0.8
6
pm
0.8
7
pm
0.8
8
pm
0.8
9
pm
0.8
10
pm
0.7
11
pm
0.7




Weather Map
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GEOS Local Image of southern planes -- texas   
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Houston/Galveston, TX,



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