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

(00Z TAF Issuance) Issued at 549 PM CDT Wed Jul 1 2026

Scattered shower activity between KDWH and KCLL will continue to move to the northeast. Most of the activity should start decreasing as we progress into the evening, but may have to amened to add a TEMPO group for KCLL if these scattered storm activity continues. Otherwise, a return of MVFR CIGs overnight after 06Z will carry through the 14Z. Roughly after 08-10Z, streamer showers could potentially result in reductions in CIG with the strongest cells, otherwise VFR conditions return to inland terminals through 18Z. For more coastal terminals, scattered thunderstorm activity increases from 16Z and pushing toward inland terminals. Outflow collisions would result in new storms after 18Z, with most shower/storm activity diminishing after 00Z. VFR conditions then return through the end of the TAF period. With the scattered nature of the storms and higher confidence in this convective activity, PROB30 groups were maintained, but expanded to most terminal sites (though lower confidence exists for KUTS and KCLL).

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

HGX WATCHES/WARNINGS/ADVISORIES

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