textproduct: Houston/Galveston

KEY MESSAGES

- Heat Advisory remains in effect. Hot conditions will persist through next week. - Cannot rule out a rouge shower or thunderstorm at times into midweek, but chances will be quite low.

- Temperatures VERY slightly ease late in the week along with the potential for some isolated rain chances.

DISCUSSION

Issued at 1234 PM CDT Sat Aug 22 2026

Ridge will remain firmly in control well into the next week...limiting rain chances and keeping above normal temps in place. Daytime highs will be in the 100-104F range inland and 90-94 at the beaches. Heat index readings will peak in the 105-110F range and a Heat Advisory remains in place.

Mid level heights will begin to ease somewhat Thursday into the weekend as the center of the ridge repositions itself slightly further wwd from New Mexico into the Desert Southwest. As such, we'll probably see temperatures ease just a tad (from the currently prevailing 100-104F down into the 98-101F range) and possibly the return of some low diurnally driven POPs. 47

AVIATION

(00Z TAF Issuance) Issued at 614 PM CDT Sat Aug 22 2026

VFR conditions prevail, across all TAF sites An outflow boundary is approaching the metro area, and could cause a brief wind shift out of the N/NW. In general winds prevail at 6-8 kts out of the SSW and become light and variable overnight. Winds settle in the WSW tomorrow morning, then increase to about 7-10 kts and swing to the SSE by tomorrow afternoon. Another round of intermittent MVFR/IFR CIGS are possible tonight, though are expected to be "FEW" and "SCT" in nature. MVFR VIS is possible, especially at KLBX where cooling overnight temps, increased moisture from onshore flow, and nearly calm winds are expected from about 10Z to 14Z. I have left out any mention of TS/SHRA for tomorrow, as CAMs show even less of a chance for precip for tomorrow afternoon.

MLG

MARINE

Issued at 1234 PM CDT Sat Aug 22 2026

Southwest to west winds late at night and in the mornings will become south 10 to 15 knots during the day as the seabreeze kicks in. Seas will be on the low side...1 to 3 feet. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 79 104 78 102 / 10 0 0 0 Houston (IAH) 81 103 80 101 / 20 0 0 0 Galveston (GLS) 83 92 83 93 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...Heat Advisory until 7 PM CDT Sunday for TXZ163-164-176>179- 195>200-210>214-226-227-235>238-300-313-335>338-436>439.

GM...None.