textproduct: Houston/Galveston

KEY MESSAGES

- Hot weather will continue with peak heat index values reaching 100- 110F (38-43C) through the holiday weekend. Heat safety should continued to be practiced over the next several days.

- Daily isolated showers look to continue during the morning hours with scattered/isolated storms developing in the afternoon.

DISCUSSION

Issued at 1238 AM CDT Thu Jul 2 2026

The larger weather pattern continues to be dominated by the stout ridge across the eastern U.S. Isolated showers and thunderstorms were seen yesterday evening across the Western Pineywoods and easter Southeast Texas regions. Current conditions show decaying outflow and light showers moving west of the I-45 corridor.

Overall, the forecast continues to remain steady, mainly due to the strength and position of the mid-level ridge. This afternoon is expected to be the peak of moisture availability as a weak impulse moves into the area. Scattered showers and thunderstorms look to develop across the southeastern two-thirds of the forecast area along the seabreeze boundary. Shower coverage will be closer to numerous across the northeastern Golden Triangle along our border with Lake Charles. Low chances for rain return Friday and Saturday, but scattered showers and storms will be possible Sunday and Monday afternoons as the mid-level ridge looks to break down over the eastern U.S.

Heat continues to be the main talking point for the region. Latest guidance has slightly reduced the coverage of some of the higher values between 108-110F (42-43C), but isolated locations may still reach this range Friday and Saturday. With this weekend doubling as a holiday weekend and a match day, consideration for a Heat Advisory will need to be maintained. If you plan to spend the day outdoors, make sure you wear light cloths, apply sunscreen and stay hydrated by drinking plenty of water. Also take plenty of breaks from the heat by seeking shade/AC.

AVIATION

(12Z TAF Issuance) Issued at 622 AM CDT Thu Jul 2 2026

VFR conditions and light winds are currently in place across all terminals. Streamer shower activity this morning may result in brief MVFR ceilings for the coastal locations. Isolated to scattered showers and thunderstorms are likely to develop late this morning along the coast and move inland through the day. Any convection that does develop should wane around 00Z. Will maintain the current PROB30 groups for TSRA with this TAF cycle. Have introduced a TEMPO group Friday morning to account for a medium chance (per the latest HREF probs) for MVFR ceilings from 09-12Z.

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 76 95 77 96 / 10 0 0 0 Houston (IAH) 77 94 78 95 / 10 20 0 20 Galveston (GLS) 82 89 82 89 / 10 20 0 20

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 93 76 94 76 / 10 0 0 0 Houston (IAH) 93 77 94 78 / 50 10 10 0 Galveston (GLS) 89 82 89 82 / 20 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

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