FXUS64 KHGX 251128 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 628 AM CDT Wed Mar 25 2026 ...New AVIATION... .KEY MESSAGES... - High pressure will keep conditions dry and temperatures well above normal over the next several days. - Persistent southerly flow will lead to the development of some late night clouds and patchy fog. - Less humid and slightly cooler temperatures are possible over the weekend with the passage of a dry cold front Friday night. && .DISCUSSION... Issued at 1224 AM CDT Thu Mar 25 2026 Strong mid-upper level ridging over northern Mexico and the Desert Southwest will slightly expand eastward over the next few days. With corresponding height and thickness rises (peaking Friday), we'll see an additional degree or two added to daytime highs in the coming days. Prevalent southerly llvl flow will allow for some late night & early morning clouds & patchy fog...burning off during the mid morning hours daily. Heading into late week, a cold front and associated 1035-1040mb high will be dropping southward out of Canada and into the Plains. This front will eventually sag southward through Southeast Texas Friday night. (It'll be moisture starved...so no rain with this one unfortunately). The surface high behind the front will be tracking more sewd toward the Mid Atlantic states, so although we'll see some cooler temperatures this weekend, they'll just be a bit closer to seasonal norms. Main noticeable difference will be the less humid air for 36-48 hours. Onshore flow off the Gulf resumes on Sunday bringing dewpoints back up into the 60s early next week. Eventually we'll see the dominate mid-upper ridging weaken and move to our east. And hopefully with enough of a low level moisture return toward midweek we might be able to begin re-introducing some diurnally POPs back into the forecast. 47 && .AVIATION... (12Z TAF Issuance) Issued at 618 AM CDT Wed Mar 25 2026 Some patchy dense fog is bringing LIFR to IFR conditions at a handful of sites this morning, while others sit in MVFR. This fog will begin to burn off after sunrise, with rapidly improving conditions after 14z. Terminals return to VFR later this morning with some areas seeing some gusty winds, up to 20kts, into the afternoon. Conditions tonight into Thursday look favorable for fog development once again, so IFR vis and cigs are likely. && .MARINE... Issued at 1224 AM CDT Thu Mar 25 2026 Light to moderate south-southeast winds low seas will prevail for the next several days. A cold front is expected to push off the coast Friday night bringing a period of moderate northeast and east winds and some higher seas into Saturday. Southeast winds should resume as the day progresses Sunday and persist into next week. 47 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 87 64 87 63 / 0 10 0 0 Houston (IAH) 85 64 86 64 / 10 0 0 0 Galveston (GLS) 77 68 77 68 / 10 0 0 0 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...47 AVIATION...Self MARINE...47