textproduct: Houston/Galveston

KEY MESSAGES

- The heat will build this weekend into next week, possibly warranting advisories by Sunday or Monday.

DISCUSSION

Issued at 1145 PM CDT Thu Jul 23 2026

Bertha dissipated earlier this evening over the Houston metro area. All that's left is a remnant trough with a few light showers as it continues to slide off to the west. Drier air begins to more in during the day Friday, but there may be just enough residual moisture to generate a few isolated showers, mainly west of I-45 closer to Bertha's remnants. Otherwise, we become mostly sunny again with highs in the low to mid 90s. We should mix out our dew points just enough to prevent a Heat Advisory for Friday.

Ridging builds over the central US again this weekend and lasts well into next week. Rain chances will be near nil, but the temperatures will be on the rise. We should see highs climb into the mid to upper 90s this weekend, followed by near or exceeding 100 next week for inland areas. We'll still have lower daytime dew points on Saturday, so we should remain below advisory levels, but starting Sunday, each day has the potential of needing a Heat Advisory as humidity levels slowly climb.

Young

AVIATION

(12Z TAF Issuance) Issued at 526 AM CDT Fri Jul 24 2026

GOES PW imagery shows some drier air beginning to move into the region from the ESE, though with values still in the 1.7-2.0" territory, one cannot rule out some isolated showers today. That said, they should be short-lived at any individual site with little impact...so these chances won't be mentioned in the TAFS. Otherwise, some sporadic MVFR cigs should lift into VFR territory areawide by 15-16z. Southerly winds 10-15kt should diminish after sunset. SREF indicates some patchy fog potential west and north of the metro area late tonight/early Sat morning. 47

MARINE

Issued at 1145 PM CDT Thu Jul 23 2026

Winds and seas will continue to subside in the wake of Bertha. Small craft should exercise caution through Friday morning with winds of 15-20 kt and seas around 4-5 feet. Light to moderate south to southwesterly winds will prevail thereafter with 2-3 foot seas.

Young

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 95 75 95 75 / 20 0 0 0 Houston (IAH) 95 77 96 77 / 20 0 0 0 Galveston (GLS) 91 83 90 83 / 20 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...High Rip Current Risk until 6 AM CDT early this morning for TXZ436>439.

GM...Small Craft Should Exercise Caution until 10 AM CDT this morning for GMZ330-335-350-355-370-375.