Sunrise 6:26 AM   Sunset 8:14 PM Moonrise 7:45 PM   Moonset 5:14 AM

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GMZ350 Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 920 Am Cdt Thu May 23 2024
.small craft advisory in effect until 7 pm cdt this evening - .
Rest of today - Southeast winds around 20 knots. Seas 4 to 6 feet. Wave detail: southeast 5 feet at 6 seconds. Tonight - Southeast winds around 15 knots. Seas 4 to 5 feet. Wave detail: southeast 5 feet at 5 seconds. Friday - South winds around 15 knots. Seas 4 to 5 feet. Wave detail: south 5 feet at 5 seconds. Friday night - South winds around 15 knots. Seas 4 to 5 feet. Wave detail: southeast 4 feet at 5 seconds. Saturday - Southeast winds around 15 knots. Seas 4 to 5 feet. Wave detail: south 4 feet at 5 seconds. Saturday night - South winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: southeast 5 feet at 6 seconds. Sunday - South winds 15 to 20 knots. Seas 4 to 5 feet. Sunday night - South winds 10 to 15 knots. Seas 4 to 5 feet. Monday - South winds 10 to 15 knots. Seas 3 to 5 feet. Monday night - Southeast winds around 10 knots. Seas 3 to 4 feet.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 920 Am Cdt Thu May 23 2024
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
generally moderate to occasionally strong onshore flow will persist into the weekend. Winds and seas are expected to reach small craft criteria at times, especially offshore. The persistent onshore flow will bring an elevated risk of rip currents into early next week.

FXUS64 KHGX 232332 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 632 PM CDT Thu May 23 2024

New AVIATION

SHORT TERM
(This evening through Friday Night)
Issued at 224 PM CDT Thu May 23 2024

Overnight MCS and its associated development (via daytime heating along/near the lingering outflow boundaries) just north of the CWA could sneak into portions of the Brazos Valley through this even- ing. But the main issue(s) with this activity has been the fairly widespread blow-off cloud cover this afternoon across this region.
Per models, we could see a repeat of sorts for tomorrow afternoon given the proximity of the dryline over Central TX and additional disturbances embedded in the zonal mid/upper level flow. While the "best" chances are still going to be somewhat low (POPs 20%-30%), they should also be for mainly our NW/W counties for the late af- ternoon/early evening hours tomorrow.

Otherwise, for the rest of SE TX, no major changes are expected as the warm/humid summer weather persists...fueled by the moderate to occasionally strong S/SE winds. Rain chances remain limited as the cap persists. Lows tonight and tomorrow night should be in the mid to upper 70s. Highs tomorrow will be in the lower to mid 90s. 41

LONG TERM
(Saturday through next Wednesday)
Issued at 224 PM CDT Thu May 23 2024

The long holiday weekend is looking quite hot thanks to the continued presence of the mid/upper subtropical ridge over Mexico and a veering wind profile that will support WAA in the lower levels. Inland afternoon high temperatures are expected to range from the low/mid 90s Saturday, mid 90s on Sunday, an mid/upper 90s on Monday. With dew points in the 70s, expect heat index values to be ~10 degrees hotter than the actual temperatures. Much of the region is forecast to approach Heat Advisory criteria by Sunday, then reach advisory criteria on Monday. Experimental HeatRisk guidance shows widespread High Risk (Level 3 of 4) on Saturday and Sunday, with areas of Extreme Risk (Level 4 of 4) on Monday.
Needless to say, the chance of needing heat advisories is increasing for the Sunday-Monday time frame. Afternoon temperatures at the immediate coast will generally be in the upper 80s to near 90 with heat index values 98-102F. So don't expect THAT much heat relief at the coast. In addition, the rip current risk will be relatively high at the beaches this weekend.
Practicing heat safety will be must over the holiday weekend. If at the beach, swim near a life guard and away from piers and jetties. If caught in a rip current, do not panic and swim parallel to shore. Regarding heat, drink plenty of fluids, wear light clothing, take frequent breaks (preferable inside) if working/playing outside, and NEVER leave children and pets in vehicles.

A weak front may approach from the north Monday night into Tuesday and bring us a shot of showers/thunderstorms. For now, PoPs remain low. But some of the global guidance suggests that may need to increase those PoPs in future updates. Forecast afternoon temps drop to the upper 80s to low 90s Tuesday/Wednesday with lower humidity.

Self

AVIATION
(00Z TAF Issuance)
Issued at 632 PM CDT Thu May 23 2024

Expecting early evening severe thunderstorm N of CLL and NW of UTS to remain N of the TAF sites. 00Z TAFs have MVFR ceilings developing overnight with mainly S to SE winds around 8 to 13 knots. These mainly S winds will strengthen to around 15 knots and become occasionally gusty during the day tomorrow with MVFR ceilings becoming VFR by around 16Z-18Z.
At this time, any afternoon/evening storms should stay NW and N of the area.

42

MARINE
Issued at 224 PM CDT Thu May 23 2024

Moderate to occasionally strong southeast winds will continue through the weekend. Winds and seas are likely to reach Small Craft criteria at times. A Small Craft Advisory is in effect into this evening due to 20 to 25 knot winds and seas up to 8 feet.
These conditions might improve somewhat tonight into tomorrow morning. However, computer model guidance has generally been under estimating winds and seas offshore today. Therefore, we cannot rule out having to extend the Small Craft Advisory further into the overnight.

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 76 94 75 94 / 20 20 10 0 Houston (IAH) 77 94 77 94 / 10 10 10 0 Galveston (GLS) 78 85 79 86 / 0 10 10 0

HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...Small Craft Should Exercise Caution through Friday morning for GMZ330-335-350-355-370-375.

Small Craft Advisory until 11 PM CDT this evening for GMZ350-355- 370-375.

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Port O'Connor
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Thu -- 12:03 AM CDT     -0.21 feet Low Tide
Thu -- 06:16 AM CDT     Moonset
Thu -- 06:30 AM CDT     Sunrise
Thu -- 08:55 AM CDT     Full Moon
Thu -- 11:22 AM CDT     0.99 feet High Tide
Thu -- 08:14 PM CDT     Sunset
Thu -- 08:46 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Port O'Connor, Matagorda Bay, Texas, Tide feet

Pass Cavallo
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Thu -- 06:17 AM CDT     Moonset
Thu -- 06:31 AM CDT     Sunrise
Thu -- 06:39 AM CDT     1.67 feet High Tide
Thu -- 08:55 AM CDT     Full Moon
Thu -- 08:13 PM CDT     Sunset
Thu -- 08:46 PM CDT     Moonrise
Thu -- 09:21 PM CDT     -0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Pass Cavallo, Texas, Tide feet

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