textproduct: Houston/Galveston

KEY MESSAGES

- Warm and muggy today with scattered showers and isolated thunderstorms.

- Continued warmth through Thursday, though rain chances slightly diminish.

- A cold front is expected to push across the region on Friday bringing cooler, breezy, and drier conditions to the region this weekend.

DISCUSSION

Issued at 1230 AM CDT Tue Oct 13 2026

Surface/llvl high pressure to our will maintain a warm/humid southeasterly flow today. Though there is some mid level ridging overhead, PW's holding in the 2.1-2.4" range, daytime heating, and some modest llvl speed convergence should allow for scattered precipitation again today. Higher chances/coverage look to be across the eastern half of the CWA.

Heading into Wed-Thur, some recycled lower PW's currently situated across the NE Gulf should advect into the region and lower overall rain chances (though still non-zero) and coverage.

Friday, a 1035-1041mb high will be sagging south through the central CONUS and push a cold front through the region. We'll likely see a wind shift to the north early in the day (probably with a prefrontal trof), but we should see the much drier, cooler, and breezy conditions filter in later in the day and Friday night. Who's up for some lows in the 50s and highs in the 70s-low 80s this weekend?

A gradual modifying trend ensues early next week as high pressure moves off to the east, an easterly wave tracks ewd near the Yucatan, and our upper flow pattern transitions to the sw. 47

AVIATION

(06Z TAF Issuance) Issued at 1143 PM CDT Mon Oct 12 2026

MVFR CIGs have developed at CXO and LBX. Water vapor imagery at the low levels shows cloud cover beginning to increase, so anticipate more terminals, particularly north of I-10 to become MVFR during the overnight hours. IFR CIGs may develop at UTS/CXO just before sunrise. All sites expected to improve to VFR by mid to late morning. Isolated to scattered SHRA/TSRA may impact terminals again Tuesday afternoon. For now, have maintained a PROB30 for IAH/LBX/GLS where the probabilities are the highest. Winds will be generally light out of the southeast, though gusts to 20 knots may occur with any overhead showers/storms, or from outflow. Expect activity to wane off near sunset.

Bailey

MARINE

Issued at 1230 AM CDT Tue Oct 13 2026

Moderate onshore winds and 3 to 5 foot seas will prevail for the next several days. A prefrontal trough is forecast to push off the coast Friday allowing for a NNE wind shift followed by the front itself Friday night. Once the cooler air arrives and moves over the warmer coastal waters, look for a substantial increase in north-northeast winds and building seas Friday night and Saturday. Small Craft Advisories will likely be required and some gale conditions cannot be ruled out. Winds/seas should gradually trend lower Saturday night and Sunday. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 93 76 93 70 / 20 10 20 10 Houston (IAH) 92 76 91 72 / 50 10 20 10 Galveston (GLS) 88 79 88 78 / 30 10 20 10

HGX WATCHES/WARNINGS/ADVISORIES

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