Sunrise 6:40 AM   Sunset 7:57 PM Moonrise 12:00 AM   Moonset 9:56 AM

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GMZ355 Expires:202404300415;;323768 Fzus54 Khgx 291541 Cwfhgx
coastal waters forecast for texas national weather service houston/galveston tx 1041 am cdt Mon apr 29 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.
gmz350-355-300415- coastal waters from freeport to matagorda ship channel tx out 20 nm-coastal waters from high island to freeport tx out 20 nm- 1041 am cdt Mon apr 29 2024
Rest of today - South winds around 10 knots, becoming southeast late. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers and Thunderstorms. Tonight - Southeast winds around 10 knots. Seas 3 to 5 feet. A slight chance of showers and Thunderstorms after midnight. Tuesday - Southeast winds around 10 knots, becoming east 10 to 15 knots late. Seas 3 to 4 feet. A chance of showers and Thunderstorms. Tuesday night - Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and Thunderstorms early in the evening. Wednesday - Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms in the afternoon. Wednesday night - Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Thursday - Southeast winds 15 to 20 knots. Seas 4 to 5 feet. Thursday night - Southeast winds around 15 knots. Seas 4 to 5 feet. A chance of showers and Thunderstorms. Friday - Southeast winds 10 to 15 knots. Seas 3 to 5 feet. A chance of showers and Thunderstorms in the morning. Friday night - Southeast winds around 10 knots. Seas 3 to 4 feet.
winds and seas higher in and near Thunderstorms.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1041 Am Cdt Mon Apr 29 2024
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
there will be decreasing shower and Thunderstorm as the day progresses. A long fetch of southeast winds has been in place for several days and although winds will generally be lower into midweek, seas should remain on the elevated side for a good portion of the week. Periods of unsettled weather are possible, though better shower and Thunderstorm chances should be situated a bit further inland for much of the week.

FXUS64 KHGX 291751 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1251 PM CDT Mon Apr 29 2024

New AVIATION

SHORT TERM
(Today through Tuesday Night)
Issued at 334 AM CDT Mon Apr 29 2024

Dangerous flash flooding is ongoing across portions of the region as training showers and thunderstorms slowly sag southward across the region. With a swath of 5-7" rain and localized 10+ across northern parts, rivers are on the rise...some forecast into moderate flood stage. Even though rain will be ending, water will be slow to recede and the reminder to not drive thru flooded roadways stands.

The stronger llvl jet that has been feeding deep Gulf moisture into the line is in the process of shifting to the east. Expect the cold pool to eventually push the majority of ongoing convection off the coast and to the ese as we head into the sunrise hours. In the meantime, southern parts of the CWA should anticipate some isolated strong-severe storms and locally heavy rain. Will maintain Flood Watch as is into mid morning for messaging purposes. Though the metro area itself is not within the Watch, this does not mean there will not be some isolated impacts...in fact - one can probably expect a few issues (localized street flooding, etc). HRRR, which has done an excellent job with this event, still shows the potential for some small pockets of 2-5" totals along/south of a Cleveland-Angleton line.

The boundary pushes offshore this morning with clearing/fair wx emerging in its wake by the mid morning and afternoon hours.
Pressures fall the the west, and southeast winds will resume and drive it, and associated deeper Gulf moisture back into the area Tuesday. Will probably see some sct shra/tstm development across sw/s parts of the CWA during the day into early evening. 47

LONG TERM
(Wednesday through Sunday)
Issued at 334 AM CDT Mon Apr 29 2024

A continued challenging and somewhat unsettled fcst for the extended.
Some subtle mid level ridging will nudge the trajectory of a series of upper level impulses in the emerging sw flow aloft to favor the northern half of the region. Can't pinpoint any single disturbance or timeframe, but combination of those plus 1.7-2.0" PW's, daytime heating, and seabreeze should keep chances of shra/tstms in the fcst pretty much on a daily basis during the second half of the work week and the weekend. More concerning is the potential for another weak frontal boundary to sag into the region around Friday and potentially stall. Regardless, soils across several parts of the area will be saturated and prone to quicker runoff with any additional moderate-heavy rain that decides to develop. 47

AVIATION
(18Z TAF Issuance)
Issued at 1241 PM CDT Mon Apr 29 2024

MVFR CIGS should scatter/lift over the next several hours with VFR conditions resuming later this afternoon. Light winds this afternoon will gradually veer east/southeasterly this evening.
Lower cloud decks settle in later tonight, with MVFR/IFR CIGS/Fog developing overnight through the early morning hours of Tuesday.
Recent heavy rainfall across the Brazos Valley/Piney woods area may allow for lower CIGS/VIS to develop during this early morning period. All Fog/CIGS should clear out during the late morning/early afternoon on Tuesday. Afterwards, VFR conditions and southeast winds prevail through the end of the TAF period.

03

MARINE
Issued at 334 AM CDT Mon Apr 29 2024

Small craft advisories and high risk of rips will continue today.
Strong to severe cells are in the process of approaching the coast and should be moving offshore during the early and mid morning hours. Look for strong winds and variable directions along with chaotic seas as this occurs. A long fetch of southeast winds has been in place for several days and although winds will generally be lower into midweek, seas should remain on the elevated side for a good portion of the week. Periods of unsettled weather are possible, though better shower and thunderstorm chances should be situated a bit further inland. 47

HYDROLOGY
Issued at 334 AM CDT Mon Apr 29 2024

Rivers will be on the rise...some well into moderate flood territory as heavy rain continues to runoff into area watersheds.
Additional chances of rain are in the forecast throughout a good part of the week. General trajectories of the upper level disturbances into mid-late week appear to be over the same locations we saw overnight. Nothing screams anywhere as extreme as what we are experiencing, though any additional heavy rain over saturated soils will quickly runoff and cause further river responses that'll need to be monitored with time. 47

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 86 67 84 71 / 10 0 10 0 Houston (IAH) 86 69 85 71 / 30 0 10 0 Galveston (GLS) 78 71 79 73 / 90 10 20 10

HGX WATCHES/WARNINGS/ADVISORIES
TX...Beach Hazards Statement until 9 PM CDT this evening for TXZ436>439.

GM...Small Craft Advisory until 4 PM CDT this afternoon for GMZ370- 375.

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Christmas Point
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Mon -- 12:50 AM CDT     Moonrise
Mon -- 04:33 AM CDT     -0.08 feet Low Tide
Mon -- 06:40 AM CDT     Sunrise
Mon -- 10:55 AM CDT     Moonset
Mon -- 02:41 PM CDT     1.07 feet High Tide
Mon -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Christmas Point, Christmas Bay, Texas, Tide feet

Alligator Point
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Mon -- 12:50 AM CDT     Moonrise
Mon -- 04:35 AM CDT     -0.08 feet Low Tide
Mon -- 06:40 AM CDT     Sunrise
Mon -- 10:55 AM CDT     Moonset
Mon -- 02:48 PM CDT     1.07 feet High Tide
Mon -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Alligator Point, West Bay, Texas, Tide feet

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