textproduct: Houston/Galveston

KEY MESSAGES

- Scattered seabreeze showers and thunderstorms expected on a daily basis into early next week.

- Seasonably hot with highs in the 90s and heat index values 101-108F each day.

DISCUSSION

Issued at 1150 AM CDT Thu Aug 6 2026

Light SSW winds, warm temps, and dewpoints in the upper 70s to around 80 will probably produce some heat index readings around, or slightly above, 108F this afternoon. Due to the short nature, the plan for now is to forgo a head advsy...but typical summertime heat precautions should still be considered.

Otherwise, we're seeing some higher PW air, compared to the previous several days, track into the region from the east & southeast. Once we get some more daytime heating and a seabreeze/baybreeze to generate we should see some sct shra/tstms develop across parts of the region.

Pretty much a rinse/repeat scenario through the weekend into early next week with the synoptic pattern remaining about the same (ridging over the Four Corners into wcntl Tx, more ridging in the Atlantic, and troffiness/weakness in between). Fluctuations on PW values should generally drive POPs and overall coverage each day. Deterministic guidance isn't in the best of agreement in terms of the finest details in those regards...but the southern 2/3 of the CWA will probably see the overall better chances. POPs may need to be nudged upwards some Sun-Mon if ECMWF ends up being the deterministic model of choice.

With more cloudiness and a prevailing SE llvl flow, we'll probably see highs a few degrees lower than previous days. But they should trend back up toward the middle part of next week as Atlantic ridging begins expanding westward across the NE/Ncntl Gulf. 47

AVIATION

(00Z TAF Issuance) Issued at 615 PM CDT Thu Aug 6 2026

Isolated showers/thunderstorms lingering around SE TX airports will gradually dissipate this evening. Winds will be S-SE at around 5-10 KTS and then relax to 5 KTS or less after 03Z. There's the potential for MVFR cigs and reduced vis due to areas of patchy fog over portions of the CWA, mainly from 10-14Z timeframe. Cigs will lift and scatter out during the mid morning hours and fog (if any) will burn off quickly shortly after sunrise. Mostly VFR conditions expected Fri with iso-sct showers and storms developing in the afternoon, in particular near/over HOU, IAH, SGR, CXO. In areas of storms, expect MVFR conditions along with lightning and VRB winds of around 15 KTS with gusts around 25 KTS. Stronger winds are possible with outflow boundaries from stronger storms. Storms will gradually dissipate Fri evening as diurnal heating decreases.

Cotto

MARINE

Issued at 1150 AM CDT Thu Aug 6 2026

Typical summertime conditions expected through the weekend into early next week. South and southeast winds, generally in the 10-15 knot range and 2-4 foot seas are expected. Look for some scattered shower and thunderstorm development each day...with the better chances in the early morning through early afternoon hours. 47

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 76 95 75 95 / 20 20 0 20 Houston (IAH) 79 95 78 94 / 10 30 0 30 Galveston (GLS) 83 90 82 90 / 20 20 10 20

HGX WATCHES/WARNINGS/ADVISORIES

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