Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
857 FXUS64 KHGX 121625 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 1025 AM CST Wed Nov 12 2025 ...New DISCUSSION, MARINE... .KEY MESSAGES... - Warmer and more humid for the rest of the week. ` - Some patchy late night and morning fog possible the next several nights. - Less hazardous fire weather conditions for the remainder of the week considering more humidity and lower wind speeds. && .DISCUSSION... Issued at 1023 AM CST Wed Nov 12 2025 High pressure and southerly winds will lead to a continued warming trend through the weekend. Afternoon high temperatures will climb into the upper 70s to low 80s today, then into the low to mid 80s Thursday through at least Saturday with upper 80s possibly by Sunday. Overnight lows will see a similar trend with temperatures tonight dropping into the upper 50s to mid 60s, and these overnight lows are expected to rise a few degrees each night before reaching the mid 60s to low 70s by overnight Sunday. We will remain rain-free through at least Saturday, but some chances to the pattern next week will allow for a return of rain chances. The upper level high pressure begins to break down/slide to the east Saturday into Sunday decreasing the subsidence over SE Texas. This combined with increasing moisture from the southerly flow may allow for some light coastal showers as early as Sunday afternoon. An upper level low will be moving through California on Sunday that is expected to move into the Northern Plains through the first half of next week. The trend in the guidance has been less rainfall coverage as the best upper-level dynamics with this system will be well to our north, but a tightening pressure gradient and a surge in PWATs will bring at least some scattered showers Monday or Tuesday. Additional rain chances are possible through the remainder of the week, but forecast confidence remains very low on exact timing or location at this time. Fowler && .AVIATION... (12Z TAF Issuance) Issued at 430 AM CST Wed Nov 12 2025 Brief window for patchy fog near CLL later this morning, but otherwise VFR conditions will prevail through this evening. Light and variable winds early this morning will become predominantly southerly after 15Z with sustained winds around 10-15 kt. Expect a trend back towards light and variable winds after sunset. Model guidance continues to suggest the potential for patchy fog early Thursday morning mainly north of I-10. This looks most likely to occur around or just after 12Z, so keep an eye on future TAF packages to monitor trends. Batiste && .MARINE... Issued at 1023 AM CST Wed Nov 12 2025 Rather benign weather is expected through the remainder of the week with light to occasionally moderate onshore flow and low seas persist. There will be the potential for some patchy fog entering into the northern parts of the Ship Channel during the overnight to early morning periods beginning this weekend. Chance of rain remains near zero through the end of the week, but chances do begin to increase next week. Fowler && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 59 84 60 84 / 0 0 0 0 Houston (IAH) 62 83 62 84 / 0 0 0 0 Galveston (GLS) 70 78 70 78 / 0 0 0 0 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...Fowler AVIATION...Batiste MARINE...Fowler