textproduct: Houston/Galveston

KEY MESSAGES

- Scattered, diurnally driven showers and thunderstorms will remain in the forecast for the next several days.

- High temperatures will generally be in the low to mid 90s inland and the upper 80s to lower 90s along the coast.

DISCUSSION

Issued at 1214 AM CDT Thu Sep 10 2026

No significant change is anticipated in the wx pattern the next few days. Still looking at a general mid level weakness stretching across the region, sandwiched between ridges to the east & west. PW's should remain at, or above, 2" today and Friday which should allow for the continuation of scattered diurnally driven showers and thunderstorms. Southern parts of the area should again see the higher overall coverage with the seabreeze & baybreeze coming into play, but CAMs have been underdoing chances across northern parts of the region so have nudged POPs up a touch there. We saw a few isolated strong cells Wednesday afternoon with some 40mph winds, pea size hail, and 2-3" rain rates. Those will again be possible - but not the rule.

Heading into Saturday, it appears the shear/trof axis might become situated moreso across the southeastern half of the CWA, which could limit POPs across the Brazos Valley but maintain scattered activity further SSE. Late weekend into early next week, eastern mid level ridging slowly builds back into the region and nudges any remnant weakness to the west. As this occurs, we'll probably see some slightly warmer temps and slightly lower inland rain chances (but not eliminated) as we head into the mid and late parts of the work week. 47

AVIATION

(12Z TAF Issuance) Issued at 516 AM CDT Thu Sep 10 2026

Isolated showers/storms have been present along the coast and reaching as far inland as IAH for most of the early morning hours. This sporadic coverage of coastal showers will continue through the morning, then will increase in coverage and push further inland by the late morning into the afternoon with daytime heating and the seabreeze pushing inland. PROB30 or TEMPO groups reflect the most confident window for convective impacts and are a mixture of latest high-resolution model trends and persistence from previous days. In general, terminals near and south of I-10 have the highest probability for convective impacts but showers/storms will be scattered in coverage. Gusty winds and reduced ceilings/visibilities will be possible in or near any storms.

Outside of any storms, VFR conditions will prevail throughout the day with light southeasterly winds between 6-10 kt. Convection subsides after sunset and will be accompanied by a trend towards light and variable winds going into the overnight hours. Rinse and repeat forecast for Friday, so anticipate another round of isolated to scattered showers/storms along the coast in the early morning hours.

Batiste

MARINE

Issued at 1214 AM CDT Thu Sep 10 2026

Light onshore flow and low seas will prevail for the next several days, although with a slightly tighter pressure gradient forecast we will probably see a light bump in speeds and seas tonight into the weekend (10-15kt and 2-4ft) versus the even lower values we've seen as of late. The main concern for mariners will be dodging the late night and morning scattered showers and thunderstorms. For the second day in a row we've received reports of coastal funnels/waterspouts, so with a mostly unchanged environment we wouldn't be surprised to hear of a few more today. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 95 75 96 76 / 30 20 30 20 Houston (IAH) 92 77 93 78 / 40 20 40 20 Galveston (GLS) 89 82 90 83 / 50 30 50 40

HGX WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.