textproduct: Houston/Galveston

KEY MESSAGES

- Seasonably hot with highs in the 90s and heat index values 100-107F each day. - An isolated late day shower can't be ruled out along the seabreeze later today and Wednesday, but most locations will remain dry. - Slightly better rain chances expected Thursday into early next week for southern parts of the region as some deeper moisture flows back inland.

DISCUSSION

Issued at 1251 PM CDT Tue Aug 4 2026

No significant changes were made to the ongoing forecast. With the exception of an isolated seabreeze/baybreeze shower or thunderstorm, subsidence and modest moisture levels should keep rain chances fairly low for the vast majority of the region. As the days progress Thursday into early next week, we should see heights fall just a touch across our coastal areas as the western ridge repositions just a bit further north. This, along with a developing fetch of SE llvl winds and higher PW's should allow for some better rain chances (mainly just scattered diurnally driven coverage) for our southern 2-3 tiers of counties. High temperatures should trend down a few degrees as well with the SE flow and more cloud cover. 47

AVIATION

(18Z TAF Issuance) Issued at 1251 PM CDT Tue Aug 4 2026

Mainly clear skies prevail keeping conditions VFR for the afternoon and evening hours. A PROB30 for SH remains over IAH, HOU, and SGR between 21z today and 01z tomorrow, there is still a less than 10% chance of TS. Winds will begin to relax to LGT and VRB around 5-7z across the terminals. This signals for the potential of another round of patchy mist/fog west of I-45 bringing MVFR VIS/CIG. CIG/VIS return to VFR after 1500z aided by the increasing SSE winds. Wednesday afternoon conditions remain similar to today bringing the possible for afternoon SH/TS. CW

MARINE

Issued at 1251 PM CDT Tue Aug 4 2026

Typical summertime pattern will prevail with onshore winds peaking in the 10-15kt range and seas generally 2-4ft. Rain chances will slightly increase Thursday into early next week...mainly isolated to scattered activity in the late night through early afternoon hours for the coastal waters. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 77 98 77 97 / 0 0 0 0 Houston (IAH) 79 98 79 97 / 20 10 0 10 Galveston (GLS) 83 90 83 90 / 10 0 0 10

HGX WATCHES/WARNINGS/ADVISORIES

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