FXUS64 KHGX 100557 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 1257 AM CDT Fri Jul 10 2026 ...New DISCUSSION, MARINE... .KEY MESSAGES... - Deeper tropical moisture will be moving back into the region today and should provide 30-60% chances of showers and thunderstorms each day through this weekend. Overall coverage should be highest across the southern half of the region. - Let's keep an eye out for even better chances of precipitation Monday-Tuesday across all of the area. Localized heavy rain cannot be ruled out. - Things begin to dry out (and temperatures warm) during the second half of the work week as higher pressure filters in from the east. && .DISCUSSION... Issued at 1257 AM CDT Fri Jul 10 2026 On the back side of the inverted troffiness situated across south Texas and Mexico, and with a continued southerly llvl flow, deeper Gulf moisture is set to begin moving back into the upper Texas coastal waters early this morning and inland during the day. PW's should climb into the 1.9-2.2" range by the end of the day. This should bring an uptick in overall scattered shower & tstm coverage to the region today...and a bit moreso this weekend as the tropical airmass remains in place. Precip should mainly be diurnally driven (increasing development offshore and near the coast late at night and morning then transitioning inland during the day and early evening). Not everyone will see rain, and those that do it's not currently looking like a whole-day affair. But those with outdoor plans should plan for some intermittent alternatives. Temps should be a touch below what we've seen the last several days considering more cloudiness & scattered rain. Ridge currently centered off the SoCal coast will strengthen and track across the Rockies and into the nctl US later this weekend into early next week. Weak troffiness currently seen on water vapor imagery tracking eastward across the northern Plains will eventually circle back around and under the ridge axis and toward Texas Monday and Tuesday. This should further enhance precip coverage those days. We'll probably need to keep an eye out for the highest qpf during that time period as there are some hints of some weak diffluence aloft and some potentially slower storm motions. High pressure should expand ssewd across the nctl Gulf states & southeastern states during the second half of next week and give the troffiness & deeper moisture over SE Tx a nudge westward. Wednesday should be somewhat of a transition day with lower, but still scattered, precip chances. Thursday and Friday we should be back to our beloved SE TX wx with warmer temps and just some isolated daily rain chances. LDavis/47 && .AVIATION... (00Z TAF Issuance) Issued at 612 PM CDT Thu Jul 9 2026 Elevated and gusty winds due to lingering showers and thunderstorms should decrease by this evening. Winds remain light overnight, and pick back up tomorrow morning. Generally, winds are out of the S/SSE through the TAF period. A first round of showers/thunderstorms is expected to arrive near the coast tomorrow morning and gradually push inland, mainly effecting sites south of I-10. A second, and stronger, round of showers/thunderstorms is expected to arrive tomorrow afternoon and persist through the evening. This second round of storms looks to be more widespread, effecting most TAF sites; although, it is uncertain whether storms will push as far north as KCLL and KUTS. Gusty and erratic winds, along with reductions in VIS/CIG could accompany any afternoon storms that pop up. Convective activity should subside by late tomorrow evening. MLG && .MARINE... Issued at 1257 AM CDT Fri Jul 10 2026 A continued 10-15kt onshore flow will persist with 2-4ft seas today into next week. The primary marine concern will be for late night through early afternoon storms this weekend. More numerous activity is anticipated Sunday night through and Tuesday. Widespread severe weather is not anticipated, though gusts to ~35kt and locally higher seas are possible in and near any isolated more intense cells. LDavis/47 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 94 77 93 76 / 30 20 30 10 Houston (IAH) 93 78 92 77 / 40 20 40 10 Galveston (GLS) 90 84 90 83 / 40 30 30 40 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...LDavis/47 AVIATION...MLG MARINE...LDavis/47