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

(18Z TAF Issuance) Issued at 1234 PM CDT Sat Aug 22 2026

VFR conditions prevail alongside westerly to southwesterly winds around 5-10 kt. Winds will transition to southeasterly around 21Z. There is low confidence on the placement and extent of afternoon convection moving in from the northeast. UTS would be the most likely to see a stray shower or storm should the convection make it into the area. Their PROB30 covers the most likely timeframe for convective impacts in the late afternoon. Another round of intermittent periods of MVFR/IFR ceilings and visibilities will be possible especially at LBX and near the metro area. VFR conditions will return by 15Z/Sunday with light winds out of the southwest.

Batiste

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 / 10 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.