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GMZ335 Galveston Bay- 923 Pm Cdt Fri Sep 22 2023
Rest of tonight..South winds 5 to 10 knots. Bay waters smooth.
Saturday..South winds around 10 knots, increasing to 10 to 15 knots late. Bay waters smooth, becoming slightly choppy late. A slight chance of showers and Thunderstorms in the afternoon.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..South winds around 15 knots, increasing to 15 to 20 knots late. Bay waters slightly choppy, becoming choppy late.
Sunday night..South winds 15 to 20 knots, diminishing to around 10 knots. Bay waters choppy, becoming smooth.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Monday night..Southeast winds 5 to 10 knots, becoming northeast after midnight. Bay waters smooth. A chance of Thunderstorms in the evening. A chance of showers.
Tuesday..Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay waters smooth. A chance of showers.
Tuesday night..Southeast winds 5 to 10 knots, becoming northeast after midnight. Bay waters smooth. A chance of showers after midnight.
Wednesday..Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay waters smooth. A chance of showers in the morning.
Wednesday night..Southeast winds 5 to 10 knots, becoming north after midnight. Bay waters smooth.
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 923 Pm Cdt Fri Sep 22 2023
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
generally light onshore flow and low seas will prevail through the weekend. Wind speeds may approach 15 knots during parts of the evening and overnight hours, but will lower shortly after Sunrise. Isolated showers are possible during the overnight to early morning hours through the weekend as well. A weak frontal boundary will approach the coast late Sunday into Monday increasing precipitation chances.

FXUS64 KHGX 230447 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1147 PM CDT Fri Sep 22 2023

New AVIATION

SHORT TERM
(This evening through Saturday Night)
Issued at 349 PM CDT Fri Sep 22 2023

Weakening heights, daytime heating and increased low-level moisture have led to isolated to scattered showers early this afternoon.
Forecast soundings suggest a slight increase in low to mid-level instability later this afternoon; therefore, cannot rule out a few lightning strikes with the strongest showers. This activity should gradually taper off through sunset as they are primarily daytime- heating driven.

After a mild night with partly cloudy skies and overnight lows mainly in the 70s, a similar weather pattern can be expected on Saturday. Mid to upper level ridge centered to our WSW will continue to bring drier northwesterly flow aloft into the region. At the surface, persistent south to southeasterly flow will continue to advect warm and more humid air. With PWATs generally at or above 1.7 inch, rain and storm chances can be expected, especially in the afternoon. It will generally be hit-or-miss showers with isolated thunderstorms. Therefore, have kept PoPs around 15 to 25 percent.
Temperature-wise, it is not a surprise that it will be hot. Above normal temperatures are anticipated with highs climbing into the mid to upper 90s. Make sure to practice heat safety if having outdoor plans this weekend. Heat index values will range into the 101-107 degF with isolated warmer readings.

JM

LONG TERM
(Sunday through next Thursday)
Issued at 349 PM CDT Fri Sep 22 2023

Hot and humid weather should be in place across SE TX on Sun given the persistent onshore winds/increasing low-level moisture as well as the lingering mid/upper ridge over West/South TX. High tempera- tures on Sun to range from the mid to upper 90s...with a few spots at/around 100 (mainly west of I-45). This should translate to heat index values in the 102 to 106 degree range.

Models are still bringing a weak cold front into the area late Sun evening/overnight (as the ridging aloft retreat to the W/SW). This boundary should be slowly move south toward the coast by Mon, then stalling along/just off the coast by Mon night, eventually washing out by Wed. Elevated POPs will likely accompany this line with its initial entry into the FA Sun night...with the rain chances slowly making they way south to the coast through Mon. The better chances should be closer to the coast from Tues through Thurs. Per WPC QPF rainfall totals through next week could average from 1/2 to 1 inch with isolated higher amounts possible. 41

AVIATION
(06Z TAF Issuance)
Issued at 1144 PM CDT Fri Sep 22 2023

Forecast remains generally on track with VFR conditions expected to prevail through the duration of the TAF period. Models continue to show the potential for a few low clouds tonight, but not with enough coverage to warrant a cig. Nonetheless, expect some cloud development at around 1000-2000ft through 15Z with light and variable winds. South winds of around 10 knots will develop tomorrow morning, with scattered cloud cover at around 3000-5000ft. Rainfall chances remain limited.

Cady

MARINE
Issued at 349 PM CDT Fri Sep 22 2023

This pattern of daily scattered showers/isolated thunderstorms is ex- pected to persist through the weekend along with a generally light to moderate flow and low seas. Wind speeds should be slightly lower dur- ing the morning/afternoon hours...and then slightly higher during the evening/overnight hours. A weak cold front is forecast to slowly push to the coast by Mon where it is expected to stall through mid week or so. This boundary should remain a focus for scattered activity across the region through the start of the week with winds generally remain- ing light/variable. 41

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 76 99 76 97 / 10 10 0 20 Houston (IAH) 77 97 77 96 / 10 20 0 20 Galveston (GLS) 82 90 82 89 / 10 20 10 20

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

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Texas City
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Fri -- 04:50 AM CDT     1.82 feet High Tide
Fri -- 07:07 AM CDT     Sunrise
Fri -- 02:22 PM CDT     Moonrise
Fri -- 02:32 PM CDT     First Quarter
Fri -- 04:50 PM CDT     0.13 feet Low Tide
Fri -- 07:16 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Texas City, Turning Basin, Texas, Tide feet

Bolivar Roads
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Fri -- 05:34 AM CDT     -0.00 knots Slack
Fri -- 07:07 AM CDT     Sunrise
Fri -- 02:21 PM CDT     Moonrise
Fri -- 02:32 PM CDT     First Quarter
Fri -- 02:45 PM CDT     -1.95 knots Max Ebb
Fri -- 07:15 PM CDT     Sunset
Fri -- 07:39 PM CDT     0.00 knots Slack
Fri -- 11:36 PM CDT     1.90 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Bolivar Roads, Texas Current, knots

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