textproduct: Houston/Galveston

KEY MESSAGES

- Increasing heat risk is forecast as the week progresses.

- Rip current risk will fluctuate from moderate to high through the week.

- Isolated to scattered showers and thunderstorm chances, mostly during the afternoon hours, will continue this week. Chances will increase during the Sunday/Monday timeframe.

DISCUSSION

Issued at 1218 PM CDT Tue Jun 9 2026

Subtropical ridging aloft will remained centered over Southeast Texas through the end of the week. Low-level flow will remain onshore, out of the SSE around the west side of the Bermuda high. Isolated to scattered showers and a couple storms are expected each day during the late morning and afternoon hours along the sea breeze, with the relatively highest chances along and north of I-10. Hot and humid conditions will continue. Probabilities of reaching the official advisory criteria of 108F remain low, but there are medium chances of heat indices reaching 105 degrees that will impact those not acclimated to the heat, especially given that these are the highest heat indices so far this summer. Coverage of diurnal convection will begin to increase during the Sunday/Monday timeframe, as the ridge aloft weakens in response to a trough amplifying over the Central CONUS. PWATs will increase above 2 inches due to the combination of a stalling frontal boundary to our north and a feed of tropical moisture coming in from the south. This may result in some excessive rainfall concerns late in the period.

JDavis

AVIATION

(12Z TAF Issuance) Issued at 525 AM CDT Tue Jun 9 2026

A mixed bag of IFR to VFR conditions as low ceilings and even isolated spots of patchy fog creating reduced visibilities prevail early this morning. Ceilings are mainly an issue for the northern terminals, but will lift to VFR areawide later this morning. Isolated SH/TS are expected to develop near the coast along the sea breeze around 16Z and drift northward. Not enough confidence on thunderstorm development, so only have PROB30's for SHRA for most of terminals in the late morning to early afternoon hours. Any SH/TS that develop will dissipate by 00Z with MVFR ceilings filtering in again overnight into Wednesday morning. Some intermittent IFR ceilings are possible as well for the northern terminals (CXO and northward). Winds will be southeasterly throughout the TAF period with wind speeds increasing to 8-12 kt in the afternoon and trending lighter after sunset.

Batiste

MARINE

Issued at 1218 PM CDT Tue Jun 9 2026

Light to occasionally moderate onshore winds are expected through the next several days. Winds could reach Exercise Caution levels at times. Seas will generally range between 2 and 3 feet nearshore and 3 to 5 feet offshore. Slight chance of showers and thunderstorms can be expected daily, with increasing chances expected during the upcoming weekend. There will also be a moderate to high risk of rip currents along the Gulf facing beaches.

JDavis

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 76 92 76 93 / 0 20 10 10 Houston (IAH) 77 91 77 92 / 0 30 0 10 Galveston (GLS) 82 88 82 88 / 0 10 0 0

HGX WATCHES/WARNINGS/ADVISORIES

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