textproduct: Houston/Galveston

KEY MESSAGES

- Increasing heat risk is expected through the coming week.

- Chances of isolated showers and thunderstorms continue through Monday.

- High risk of rip currents will persist through at least Monday.

DISCUSSION

Issued at 1250 PM CDT Sun Jun 7 2026

A pattern change is starting to settle in as upper level closed low around the Texas Panhandle moves northeast into the Great Plains and weak ridging start building into Texas. While this will help decrease the chances of showers and storms and generally limit it to the more typical seabreeze summertime afternoon convection, persistent southerly to southeasterly flow will continue to pump moisture in the area. So any stronger storm will still have potential to produce high rainfall rates. However, the overall threat of heavy rainfall and flooding potential has diminished. Just cannot completely rule out a spot of two getting street flooding or ponding of water especially in the harder hit areas the past few days.

Heat will become the biggest concern for this week. Highs will start around normal for this time of the year with high temperatures in the upper 80s to low 90s. But by mid to late this week, it will be above normal with highs in mid 90s by Saturday. In addition, low temperatures will hover right around the upper 70s to 80s so there will not be a lot of relief at night either. Adding humidity into the mix will have heat index values of around 100 early this week climbing into the mid to upper 100s by late this week. If the heating trend continues on track this week, there is potential for needing heat advisories by the weekend. Rip currents still remain a concern for much of this week as the onshore flow is forecasted to remain through the forecast period.

AVIATION

(12Z TAF Issuance) Issued at 552 AM CDT Sun Jun 7 2026

Widespread MVFR ceilings are present early this morning along with isolated showers. Expect the MVFR ceilings to continue through at least the mid-morning hours with coverage of showers and the development of thunderstorms later this morning into the afternoon. The highest confidence for thunderstorm activity will generally be north of IAH. Terminals near and south of I-10 (except for SGR) will retain a PROB30 or VCSH as the thunderstorm potential is lower. Southerly winds will be gusty today with sustained winds around 10-15 kt with gusts in the 20-25 kt range through the afternoon.

Shower/storm coverage decreases after 00Z, but lingering light rain is anticipated along the coast late in the afternoon and into the evening. Expect MVFR to IFR ceilings to develop late this evening into Monday morning.

Batiste

MARINE

Issued at 1250 PM CDT Sun Jun 7 2026

Onshore winds will continue for the the next week. Winds current are around small craft exercise caution criteria so flags have been issued for today. Additionally the winds will oscillate in and out of small craft exercise caution criteria during the week. Isolated showers and storms will be possible early this week but chances decrease as the week goes on.

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 86 75 90 74 / 50 10 10 0 Houston (IAH) 88 78 90 76 / 20 10 10 0 Galveston (GLS) 88 83 87 82 / 20 20 20 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...High Rip Current Risk through Monday morning for TXZ436>439.

GM...Small Craft Should Exercise Caution through Monday morning for GMZ330-335-350-355-370-375.