textproduct: Houston/Galveston

KEY MESSAGES

- Band of showers and storms will continue to move across the region through this evening. Some storms could be locally strong and also produce heavy downpours and gusty winds.

- Mariners should check the latest weather conditions and forecast before beginning or continuing their transits. Hazardous conditions are expected through this evening.

- Less active weather is anticipated for the remainder of the week.

DISCUSSION

Issued at 1251 PM CDT Wed May 27 2026

Showers and thunderstorms associated with a storm complex will continue to move east across the Upper Texas Coast through this evening, with the heaviest activity expected to remain over the areas near and south of I-10. Strong gusty winds could develop as these storms pass through. Rain chances will ebb tonight as drier air moves in behind the storm complex, although, the coastal locations could still have some isolated activity overnight. Otherwise, partly cloudy skies along with patchy fog, light winds, and lows in the upper 60s to lower 70s can be expected tonight into early Thursday.

A mid to upper level trough pattern will persist into Thursday. However, moisture along the surface only recovers slightly and remains very dry along the mid levels. There isn't much instability either during the day and the vort maxes that could pass through look to be fairly week. Thus, shower and thunderstorm activity will likely be limited and may be generally focused over areas near and south of I-10 and east of I-45. Conditions will be warming up and highs will increase into the mid to upper 80s on Thursday. Skies will be mostly sunny to partly cloudy with light variable winds. The lows Thursday night into Friday morning will be mainly in the lower 70s.

Mostly warm tranquil conditions are expected on Friday as the eastern periphery of weak a mid to upper level ridge moves into Southeast TX. There might be enough moisture and instability for isolated showers and thunderstorms to develop - especially for areas near and south of I-10, but for now, will keep PoPs below 15% for much of Southeast TX. The highs on Friday are expected to be in the upper 80s with some isolated spots possibly reaching 90 degrees F. Winds will remain light and with dewpoints in the 70s, temperatures will feel closer to the mid 90s for many locations. Similar but slightly warmer conditions are expected on Saturday as the ridge helps to limit rain chances. Keep that in mind if you plan to work or spend long periods of time outdoors.

The ridge is expected to weaken and shift east Saturday night, and will then be followed by a few disturbances pushing across TX Sunday into early next week. With pockets of warm moisture air pushing in from the Gulf at times, there will be a chance for diurnally driven showers and thunderstorms each day. The daytime highs will also remain in the upper 80s to lower 90s.

Cotto

AVIATION

(12Z TAF Issuance) Issued at 622 AM CDT Wed May 27 2026

MVFR CIGs ongoing at CLL this morning and CXO experiencing LIFR CIGs. All other sites at VFR. Periods of MVFR CIGs will continue through the morning hours. Additionally, periods of showers are expected to continue through the morning through early afternoon hours. Dry conditions will continue during the rest of the afternoon through the end of the period. Winds will be out of the SE and light.

Bailey

MARINE

Issued at 1251 PM CDT Wed May 27 2026

A storm complex will continue to move east across the coastal waters through this evening. Strong northeast winds are expected to develop in the wake of the main line of showers and thunderstorms. Speeds could range between 20-25 kts with gusts of up to 34 kts at times. Locally higher seas are also possible. Thus, a Small Craft Advisory are in effect for the bays and Gulf waters through this evening. Wind, seas, and rain chances will dissipate tonight. Isolated showers and thunderstorms are possible late tonight into Thursday morning, followed by drier conditions Thursday afternoon into Saturday. Light east to southeast winds and low seas are expected on Thursday. Light onshore flow returns Friday and continues into early next week.

Cotto

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 69 86 71 88 / 10 10 0 0 Houston (IAH) 72 88 73 90 / 30 30 10 10 Galveston (GLS) 76 86 78 86 / 40 20 10 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...None. GM...Small Craft Advisory until 7 PM CDT this evening for GMZ330-350- 370.

Small Craft Advisory from 4 PM this afternoon to 1 AM CDT Thursday for GMZ335-355-375.