textproduct: Houston/Galveston

KEY MESSAGES

- Scattered to widespread storms are anticipated again on Sunday.

- Though isolated to scattered precipitation is expected on a daily basis during the early and mid parts of next week, overall areal coverage should be a bit less...and we'll see some warmer temperatures.

DISCUSSION

Issued at 1034 PM CDT Sat Sep 5 2026

Showers and thunderstorms have dissipated for the night, but the break is expected to be short-lived as an upper-level low approaches and deep moisture continues to filter in. Hi-Res models suggest a few showers could develop along the coast and in the Gulf Waters during the early morning hours. Expect activity to spread inward and become more scattered to widespread in coverage through the day, with thunderstorms developing as daytime heating kicks in this afternoon. With the abundant moisture still overhead and light winds aloft, some storms could be slow moving and produce locally heavy rainfall, leading to isolated instances of flooding.

Ridging will build back in early in the work-week, bringing hotter conditions and a decrease in rain chances compared to this past week. Daily isolated showers and thunderstorms will remain possible and will be largely diurnally driven through mid-week. Highs during this time will reach into the low to mid-90s inland, with heat indices in the 102-109F range.

A few of the global models continue to suggest increasing chances of showers and thunderstorms near the end of the week as a weak mid-level disturbance approaches from the Gulf. There is variation among the models with regard to strength and timing of the disturbance; however, models and ensemble guidance both suggest an uptick in moisture during this time frame. Currently the highest probabilities for precipitation reside over the coastal counties and Gulf waters, particularly during the afternoon hours. This pattern appears to stay through the weekend.

Bailey

AVIATION

(06Z TAF Issuance) Issued at 1221 AM CDT Sun Sep 6 2026

Winds continue to become LGT and VRB with VFR conditions as the night progress. The chance for BR in low-lying areas and fields does remain, with the signal still not strong enough to include at the terminals. Increased moisture along with the arrival of the sea breeze brings the chance for showers starting in the late-morning. Day time heating allows for similar convective development as previous days. Thus, tempo groups have been added further north as the agreement for a deeper inland sea breeze and timing continues to develop. Convection and lingering showers are expected to dissipate by the evening with the loss of daytime heating. The prevailing SSE breeze continues along with VFR conditions outside of any convection that does develop.

CMW

MARINE

Issued at 1034 PM CDT Sat Sep 5 2026

Daily scattered showers and thunderstorms will continue across the Upper Texas Coast this weekend into next week. These storms will be capable of producing heavy downpours as well as frequent lightning and erratic winds. Building seas will also be possible near stronger storms. Otherwise, expect light to occasionally moderate onshore winds with 2-3 foot seas to prevail through late next week

Bailey

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 95 75 97 76 / 40 0 20 10 Houston (IAH) 94 78 95 78 / 50 10 40 10 Galveston (GLS) 91 82 91 83 / 50 20 20 20

HGX WATCHES/WARNINGS/ADVISORIES

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