FXUS64 KHGX 020459 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 1159 PM CDT Sat Aug 1 2026 ...New DISCUSSION, MARINE... .KEY MESSAGES... - Hot summer weather continues through the forecast period. - We'll need to monitor for potential isolated to scattered showers/storms near the coast and offshore in the Gulf today. && .DISCUSSION... Issued at 1200 AM CDT Sun Aug 2026 Our long awaited "cold" front is pushing through Texas, bringing much lower dew points / humidity in its wake. The front has been somewhat lagging, with the leading edge just reaching the northern fringe of our CWA as of the time of writing this AFD (~12AM CDT). The increasingly diffused front is expected to stall near the coast and could provide a focal region for convective development. Some of the CAMs suggest isolated to scattered activity will develop near the coast and offshore during the morning hours. So we'll be keeping a watchful eye on the radar just in case. Dew points are forecast to drop well down into the 60s for most areas north of I-10 this afternoon. We may even see 50s dew points in the Brazos Valley. Meanwhile, coastal dew points are forecast to remain in the mid/upper 70s. Quite soupy for our beach friends. Inland afternoon temperatures are expected to be in the upper 90s, with low 90s at the coast. But the highest heat indices may actually occur at the coast (104-106) due to the higher humidity. With a potential lingering frontal boundary in place, I guess we cannot completely rule out an isolated shower or storm along the boundary this afternoon. The low-levels look to remain dry on Monday, with a similar dew point regime as Sunday. Meanwhile, ridging aloft should strengthen, warming the overall temperature profile. Therefore, temperatures in many spots may be flirting with the 100 degree mark. Ridging aloft should increase as the week progresses while deep LL onshore flow becomes established thanks to the increasing influence of a sfc high well to our east. This combo should keep conditions hot and increasingly humid. Perhaps we can lower temps somewhat later in the week due to the potential for some increased cumulus as well as diurnally influenced isolated shower / thunderstorm activity. But we see no real relief from the heat. Tis August in SE TX. Self && .AVIATION... (00Z TAF Issuance) Issued at 602 PM CDT Sat Aug 1 2026 A slowing moving "cold" front continues to push into SE TX this evening and overnight. Any remaining showers ahead of the front are expected to dissipate in the next couple of hours. In general, winds veer from WSW to N as the front pushes through. A light and VRB wind group is included at most TAF sites to account for the wind shift associated with the front. At KGLS, elevated and gusty winds continue through the evening and overnight. Across all sites, a drier air mass arrives in wake of the front, making CIGs and VIS a minimal concern. Looking ahead to tomorrow afternoon, there is a low chance for pop-up showers and thunderstorms primarily along the coast due to daytime heating and positioning of the weak frontal boundary; however, confidence is low. MLG && .MARINE... Issued at 1127 PM CDT Sat Aug 1 2026 Gusty southwest winds will gradually decrease overnight into Sunday morning. A frontal boundary will approach from the north, stalling and becoming increasingly diffused near the coast. The front could help spark off a few showers and thunderstorms along the coast and over the open Gulf. Best chance of a heavier thunderstorm is offshore. Light west to southwest winds are expected Sunday into Monday, followed by light to moderate south winds Tuesday and Wednesday. Winds may become more southeasterly by the end of the week. && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 74 98 74 100 / 10 0 0 0 Houston (IAH) 78 99 77 101 / 10 0 0 10 Galveston (GLS) 81 93 82 94 / 20 20 0 0 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...Small Craft Should Exercise Caution until 7 AM CDT Sunday for GMZ335-375. Small Craft Advisory until 7 AM CDT Sunday for GMZ355. && $$ DISCUSSION...Self AVIATION...MLG MARINE...Self