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Marine Weather and Tide Forecast for Kemah, TX

April 30, 2025 8:06 AM CDT (13:06 UTC)
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Sunrise 6:37 AM   Sunset 7:57 PM
Moonrise 7:47 AM   Moonset 10:46 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.

Marine Forecasts
   
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NOTE: Zones were updated 3/20/2025
GMZ335 Galveston Bay- 259 Am Cdt Wed Apr 30 2025

.small craft advisory in effect until 1 pm cdt this afternoon - .

Today - South winds 15 to 20 knots. Bay waters choppy. A slight chance of showers and Thunderstorms this afternoon.

Tonight - South winds 15 to 20 knots. Bay waters choppy. A slight chance of showers after midnight.

Thursday - South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers early in the morning.

Thursday night - South winds around 10 knots. Bay waters smooth to slightly choppy.

Friday - Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms in the afternoon.

Friday night - Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms in the evening, then showers and Thunderstorms likely after midnight.

Saturday - Northeast winds around 10 knots. Bay waters smooth to slightly choppy. Showers and Thunderstorms likely, mainly in the morning.

Saturday night - East winds around 10 knots. Bay waters smooth to slightly choppy.

Sunday - East winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms in the afternoon.

Sunday night - East winds around 10 knots. Bay waters smooth to slightly choppy.
winds and waves higher in and near Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 259 Am Cdt Wed Apr 30 2025

Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
a tightening pressure gradient between high pressure to our east and lower pressure to our west will lead to moderate onshore winds, building seas and above normal tides through midweek. Expect periods of caution flag and/or advisory level conditions through midweek. Chances for showers and storms return later Friday into Saturday as a weak front sags toward the coast.

7 Day Forecast for Marine Location Near Kemah, TX
   
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Tide / Current for Clear Lake, Harris Co. Park, Texas
  
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Clear Lake
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Wed -- 06:38 AM CDT     Sunrise
Wed -- 06:42 AM CDT     -0.54 feet Low Tide
Wed -- 08:47 AM CDT     Moonrise
Wed -- 03:41 PM CDT     0.98 feet High Tide
Wed -- 07:56 PM CDT     Sunset
Wed -- 11:46 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Clear Lake, Harris Co. Park, Texas does not exist in database. Press Edit above and select a valid nearby location.

Clear Lake, Harris Co. Park, Texas, Tide feet
12
am
0.7
1
am
0.5
2
am
0.3
3
am
0
4
am
-0.2
5
am
-0.4
6
am
-0.5
7
am
-0.5
8
am
-0.5
9
am
-0.3
10
am
-0
11
am
0.3
12
pm
0.5
1
pm
0.8
2
pm
0.9
3
pm
1
4
pm
1
5
pm
1
6
pm
0.9
7
pm
0.9
8
pm
0.9
9
pm
0.8
10
pm
0.8
11
pm
0.8

Tide / Current for Bolivar Roads, Texas Current
  
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Bolivar Roads
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Wed -- 03:43 AM CDT     0.00 knots Slack
Wed -- 06:37 AM CDT     Sunrise
Wed -- 07:25 AM CDT     2.89 knots Max Flood
Wed -- 08:46 AM CDT     Moonrise
Wed -- 02:38 PM CDT     -0.00 knots Slack
Wed -- 07:55 PM CDT     Sunset
Wed -- 11:44 PM CDT     Moonset
Wed -- 11:54 PM CDT     -2.55 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Bolivar Roads, Texas Current does not exist in database. Press Edit above and select a valid nearby location.

Bolivar Roads, Texas Current, knots
12
am
-2.6
1
am
-2.2
2
am
-1.6
3
am
-0.7
4
am
0.3
5
am
1.4
6
am
2.4
7
am
2.8
8
am
2.8
9
am
2.4
10
am
1.9
11
am
1.4
12
pm
0.9
1
pm
0.6
2
pm
0.2
3
pm
-0.1
4
pm
-0.4
5
pm
-0.6
6
pm
-0.7
7
pm
-0.9
8
pm
-1.3
9
pm
-1.7
10
pm
-2.2
11
pm
-2.5

Area Discussion for Houston/Galveston, TX
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FXUS64 KHGX 301105 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX Issued by National Weather Service Corpus Christi TX 605 AM CDT Wed Apr 30 2025

New AVIATION

SHORT TERM
(Today through Thursday Night)
Issued at 233 AM CDT Wed Apr 30 2025

Today will be more active weather-wise, courtesy of a mid/upper level trough pushing east across the Southern Plains/Desert Southwest. Deep moisture coinciding with a 20-30 knot LLJ over the area should initially bring some WAA showers over our western counties, spreading eastward throughout the day. Isolated thunderstorms become more feasible throughout the afternoon as we reach peak heating, though short-range model guidance has trended toward lower activity during this afternoon period. Still, this environment features ample instability with SFC CAPE around 2000- 2700 J/KG and CIN values over -10 J/KG. 0-6km wind shear around 30- 40 knots should provide sufficient organization necessary to produce stronger storms. Forecast soundings indicate higher precipitation efficiency as we often see here in SE Texas, suggesting the potential for stronger downpours. While instability will wane this evening, high-resolution models continue to show a stronger, more organized line of thunderstorms reaching SE Texas not long after midnight, reaching as far south as Galveston Bay before dissipating Thursday morning. The HRRR continues to depict a more potent solution compared to other model guidance, though notably it was first to pick up on this organized line yesterday, with rather consistent outputs between model runs.

For both today and Thursday, SPC has a Marginal to Slight Risk (levels 1/5 to 2/5) of severe weather, with WPC placing a Marginal to Slight Risk (levels 1/4 to 2/4) of excessive rainfall over much of the same area, especially further north over the Brazos Valley/Piney Wood area. All severe/rainfall hazards are on the table for today through this evening, with damaging winds and locally heavy rainfall becoming the primary concerns overnight into Thursday as the convective line pushes south.

There should be a lull in rainfall from the mid morning to the early afternoon on Thursday with another round of showers/storms from the late afternoon through late Thursday night. Much of this activity should be concentrated north of the I-10 corridor. The risk of severe weather & excessive rainfall should be trending downwards throughout this time frame as the aforementioned trough departs to the northeast.

03

LONG TERM
(Friday through next Tuesday)
Issued at 1145 PM CDT Tue Apr 29 2025

Shower and thunderstorm chances will increase as we head through the day Friday and Friday night as a weak frontal boundary sags into the area and serves as a llvl focusing mechanism. This boundary will probably make it somewhere close to the coast early Saturday morning then stall as the push of high pressure behind it moves off to the east versus south. Locations north of the boundary will see a brief period of cooler & drier wx for the first part of the day Sat, but deeper moisture pooling to its south will begin lifting again as the day wears on. Combined with a somewhat messy quasi-zonal flow, would anticipate the possibility of additional scattered precip to re-develop inland later in the day.

The next West Coast trof will track across CA and toward the Four Corners area Sun-Tue. We'll see some mid level ridging take shape locally in advance which should generally lead to to warmer conditions and lower chances of rainfall.

47

AVIATION
(12Z TAF Issuance)
Issued at 542 AM CDT Wed Apr 30 2025

MVFR CIGS/Cloud Decks are currently in place across much of SE Texas with light showers filling inland from the coast. Expect broader improvements in CIGS later this morning after sunrise while gusty S/SE winds set in with VFR conditions returning this afternoon. Isolated thunderstorms, some strong to severe, could develop over portions of SE Texas during the afternoon. A brief lull in showers/storm activity is possible during the late afternoon/early evening as daytime heating wanes. A convective line of thunderstorms should push into southeast Texas late tonight through early Thursday morning. Storms along this line may also become strong to severe at times. MVFR CIGS are expected to fill in across the region again during this overnight period.

03

MARINE
Issued at 1145 PM CDT Tue Apr 29 2025

A somewhat tight pressure gradient between high pressure to our east and lower pressure to our west will lead to moderate onshore winds, 4-7ft seas and above normal tides through midweek. Expect periods of caution flag and/or advisory level conditions with speeds lingering around 20kt +/-5kt into Wed night-Thurs. There will be a high risk of rip currents along area beaches. Water levels will also be running above normal, but generally peak below levels typically seen with coastal flood concerns. Chances for showers and storms return later Friday into Saturday as a weak front sags toward the coast.

47

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 82 68 87 69 / 40 70 20 20 Houston (IAH) 83 71 86 71 / 40 70 40 10 Galveston (GLS) 81 75 81 75 / 10 10 20 10

HGX WATCHES/WARNINGS/ADVISORIES
TX...Beach Hazards Statement through this evening for TXZ436>439.

GM...Small Craft Advisory until 1 PM CDT this afternoon for GMZ330- 335-350-355-370-375.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
EPTT2 - 8771013 - Eagle Point, TX 6 mi48 minSSE 18G22 78°F 77°F29.92
MGPT2 - 8770613 - Morgans Point, TX 9 mi48 minESE 15G20 75°F 78°F29.91
GRRT2 18 mi48 minSE 12G18 76°F 78°F29.89
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 19 mi48 minS 20G26 77°F 79°F29.90
GTOT2 19 mi48 minS 12G16 77°F 82°F29.89
NCHT2 - 8770777 - Manchester, TX 20 mi48 minS 8G12 76°F 78°F29.90
RLOT2 - 8770971 - Rollover Pass, TX 24 mi48 minSSE 16G23 76°F 29.93
HIST2 31 mi48 minSSE 8.9G14 76°F 29.93
LUIT2 34 mi48 minSE 16G25 77°F 78°F29.91
42035 - GALVESTON 22NM East of Galveston, TX 37 mi36 minSE 19G21 77°F 78°F29.9173°F
KGVW 37 mi31 min 77°F 72°F
FPST2 46 mi48 minSE 21G24 77°F 78°F29.88


Wind History for Eagle Point, TX
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KEFD ELLINGTON,TX 11 sm12 minSE 1410 smMostly Cloudy77°F72°F83%29.91
KLVJ PEARLAND RGNL,TX 14 sm13 minSE 12G178 smOvercast77°F72°F83%29.93
KHOU WILLIAM P HOBBY,TX 18 sm13 minSE 14G1910 smPartly Cloudy75°F72°F89%29.92
KGLS SCHOLES INTL AT GALVESTON,TX 20 sm14 minSSE 1910 smOvercast77°F73°F89%29.94

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





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