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

April 21, 2024 3:42 AM CDT (08:42 UTC) Change Location
Sunrise 6:47 AM   Sunset 7:55 PM
Moonrise 5:07 PM   Moonset 4:37 AM 
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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 Galveston Bay- 323 Am Cdt Sun Apr 21 2024

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

Today - North winds 20 to 25 knots with gusts up to 35 knots, diminishing to around 20 knots late this morning and afternoon. Bay waters rough, becoming choppy late this morning and afternoon. A chance of showers and Thunderstorms early this morning.

Tonight - Northeast winds 15 to 20 knots. Bay waters choppy.

Monday - Northeast winds 15 to 20 knots, becoming east around 15 knots in the late morning and afternoon. Bay waters choppy, becoming slightly choppy in the late morning and afternoon.

Monday night - Southeast winds 5 to 10 knots. Bay waters smooth.

Tuesday - Southeast winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters smooth, becoming slightly choppy in the afternoon.

Tuesday night - Southeast winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, becoming smooth after midnight.

Wednesday - Southeast winds 5 to 10 knots. Bay waters smooth.

Wednesday night - Southeast winds around 10 knots. Bay waters smooth to slightly choppy.

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

Thursday night - Southeast winds around 15 knots. Bay waters slightly choppy to choppy.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 323 Am Cdt Sun Apr 21 2024

Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
moderate to occasionally strong northeast winds will develop behind a departing cold front this morning, with a few showers lingering behind the boundary that should depart not long after Sunrise. A small craft advisory will be in effect this morning as winds reach 20 to 25 knots. Winds will relax by Monday with onshore flow redeveloping on Tuesday. Look for gradually increasing southeast winds and seas as the week progresses.


7 Day Forecast for Marine Location Near Katy, TX
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Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 210839 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 339 AM CDT Sun Apr 21 2024

New SHORT TERM, LONG TERM, MARINE

SHORT TERM
(Today through Monday Night)
Issued at 243 AM CDT Sun Apr 21 2024

This weakening broken line of showers/thunderstorms currently nearing the coast should be end of the organized activity for SE TX with this system and its associated cold front. There could still be some isol- ated showers through mid morning (from the 850mb front), but rainfall amounts will be very light. Additionally, clouds will be slow to lift and may not scatter out until late in the afternoon. And so, with the overcast conditions persisting alongside the drier breezy N/NE winds, the cool start of the day should lead to high temperatures likely re- maining in the 60s this afternoon. Clearing skies and decreased winds will help to give us lows ranging from the mid and upper 40s north to the lower and mid 50s across the central/southern CWA tonight.

For Mon, surface high pressure in place over the region combined with very flat/weak ridging at the mid/upper levels will keep things quiet and dry across SE TX. Light NE/E winds will prevail with highs in the lower 70s. Lows Mon night will be in the upper 40s and 50s. 41

LONG TERM
(Tuesday through Saturday)
Issued at 243 AM CDT Sun Apr 21 2024

By Tuesday, the eastward departure of high pressure will bring about a lengthy period of onshore surface flow, resulting in a period characterized by gradually increasing temperatures and moisture that will ultimately culminate in a return to very warm and humid weather by the beginning of the weekend. Daily high temperatures will increase from the upper 70s on Tuesday to the low/mid 80s on Thursday, with dew points concurrently rising into the mid 60s. By late Thursday, a robust midlevel trough will swing into the Southern Rockies and allow for strong lee cyclogenesis. Latest model guidance continues to show the associated surface low deepening to near 990mb by late Thursday/early Friday, resulting in a significant increase in the strength of the surface pressure gradient. As a result, have continued to side with the upper end of the most recent blend solutions which indicate the potential for sustained winds of around 20 mph with gusts occasionally in excess of 30 mph by Saturday.
Maximum temperatures during this time will continue their increasing trend, reaching the upper 80s (and perhaps scraping the 90-degree mark in a few places) by Saturday afternoon.

Rainfall chances in the extended period will ultimately be limited to isolated diurnally driven activity, aside from some limited rainfall chances for the northern zones on Friday as a weak frontal boundary stalls to our north.

Cady

AVIATION
(06Z TAF Issuance)
Issued at 1142 PM CDT Sat Apr 20 2024

Widespread showers with scattered thunderstorms along and north of the I-10 corridor should spread southward overnight into Sunday morning. MVFR to IFR CIGS will accompany these showers and storms. Guidance indicates that CIGS could briefly scatter out at times over the next several hours, though cloud decks will largely remain in MVFR to IFR flight levels. Shower and storms begin to taper off after sunrise, with CIGS slowly lifting back to MVFR levels during the late morning/early afternoon. Northeasterly winds across the region will become gusty at times during the day on Sunday.
VFR conditions should return later in the afternoon, with winds becoming light overnight.

03

MARINE
Issued at 243 AM CDT Sun Apr 21 2024

Moderate to strong northeast winds will develop this morning behind a departing cold front, and a few lingering showers and storms will prevail through the early morning hours. Sustained winds of 20-25 knots and seas as high as 7 feet have prompted a Small Craft Advisory through this evening. Winds and seas will diminish on Monday, and onshore winds return on Tuesday. These onshore winds will gradually strengthen over the course of the upcoming week, perhaps strengthening as high as Advisory levels by the beginning of next weekend.

Cady

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 67 47 71 50 / 20 0 0 0 Houston (IAH) 70 51 72 53 / 20 0 0 0 Galveston (GLS) 70 60 69 63 / 20 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES
TX...Flood Watch until 4 AM CDT early this morning for TXZ163-164- 176>179-195>199-210>212.

GM...Small Craft Advisory until 1 PM CDT this afternoon for GMZ330.

Small Craft Advisory until 1 PM CDT this afternoon for GMZ335.

Small Craft Advisory until 1 AM CDT Monday for GMZ350-370-375.

Small Craft Advisory until 1 AM CDT Monday for GMZ355.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NCHT2 - 8770777 - Manchester, TX 29 mi55 min ESE 8G12 67°F 29.99
MGPT2 - 8770613 - Morgans Point, TX 44 mi55 min E 6G8 63°F 76°F30.02


Wind History for Manchester, TX
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KTME HOUSTON EXECUTIVE,TX 5 sm27 minN 15G253 smOvercast Hvy Rain 55°F55°F100%30.12
KSGR SUGAR LAND RGNL,TX 14 sm38 minvar 0310 smMostly Cloudy Lt Rain 64°F63°F94%30.04
KDWH DAVID WAYNE HOOKS MEMORIAL,TX 23 sm13 minNNW 11G245 smOvercast Lt Rain Mist 55°F54°F94%30.12
Link to 5 minute data for KTME


Wind History from TME
(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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Sun -- 03:03 AM CDT     0.51 feet Low Tide
Sun -- 05:34 AM CDT     Moonset
Sun -- 06:46 AM CDT     Sunrise
Sun -- 10:06 AM CDT     1.07 feet High Tide
Sun -- 04:04 PM CDT     0.74 feet Low Tide
Sun -- 06:03 PM CDT     Moonrise
Sun -- 07:51 PM CDT     Sunset
Sun -- 08:08 PM CDT     0.88 feet High Tide
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
0.7
1
am
0.6
2
am
0.5
3
am
0.5
4
am
0.5
5
am
0.6
6
am
0.7
7
am
0.9
8
am
1
9
am
1
10
am
1.1
11
am
1.1
12
pm
1
1
pm
0.9
2
pm
0.8
3
pm
0.8
4
pm
0.7
5
pm
0.8
6
pm
0.8
7
pm
0.9
8
pm
0.9
9
pm
0.9
10
pm
0.8
11
pm
0.7



Tide / Current for Clear Lake, Harris Co. Park, Texas
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Clear Lake
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Sun -- 03:55 AM CDT     0.21 feet Low Tide
Sun -- 05:34 AM CDT     Moonset
Sun -- 06:46 AM CDT     Sunrise
Sun -- 10:01 AM CDT     0.69 feet High Tide
Sun -- 04:37 PM CDT     0.29 feet Low Tide
Sun -- 06:03 PM CDT     Moonrise
Sun -- 07:51 PM CDT     Sunset
Sun -- 09:35 PM CDT     0.58 feet High Tide
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
0.4
1
am
0.4
2
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0.3
3
am
0.2
4
am
0.2
5
am
0.2
6
am
0.3
7
am
0.4
8
am
0.6
9
am
0.7
10
am
0.7
11
am
0.7
12
pm
0.6
1
pm
0.5
2
pm
0.4
3
pm
0.4
4
pm
0.3
5
pm
0.3
6
pm
0.3
7
pm
0.4
8
pm
0.5
9
pm
0.6
10
pm
0.6
11
pm
0.5




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



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