FXUS64 KHGX 271837 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 137 PM CDT Fri Mar 27 2026 ...New DISCUSSION, MARINE... .KEY MESSAGES... - A weak and relatively dry cool front will enter the region late this afternoon. This front will bring lower humidity and temperatures mainly in the 70s on Saturday. - The lower humidity will be short-lived; an uptick in moisture and a return to above-normal temperatures are expected heading into early next week. Rain chances return during the second part of the week. && .DISCUSSION... Issued at 133 PM CDT Fri Mar 27 2026 A shallow cold front is currently moving across North-central TX and is progged to reach our northern counties by late this afternoon, eventually moving off of the coast after midnight. Moisture remains limited along the boundary, with PWATs generally holding in the 1.0 to 1.3 inch range. While a few sprinkles cannot be ruled out along the leading edge, a dry frontal passage is expected for the vast majority of the region. The primary impact will be a welcome airmass change as surface dewpoints drop from the 60s (today) into the upper 30s to mid 50s by Saturday afternoon. Saturday will feel much more like late March. Highs will be in the low to mid 70s under a mix of post-frontal clouds and afternoon sun. As the surface high shifts east on Sunday, onshore flow will resume, initiating a warming and more humid trend to start the work week. Ridging aloft will weaken and shift east by midweek, opening the door for a more active quasi-zonal flow and the passage of several embedded vorticity maxima. This shifting pattern, combined with increasing WAA and Gulf moisture will favor low-end rain chances starting Tuesday. The next notable chance for precipitation arrives after midweek ahead of a weak trough traversing the Plains. Models continue to suggest PW values increasing into the 1.5 to 1.8 inch range late Wednesday through the end o the week. This environment will be enough to trigger showers and thunderstorms from midweek into next weekend. JM && .AVIATION... (18Z TAF Issuance) Issued at 1145 AM CDT Fri Mar 27 2026 Mostly VFR through this evening. Skies are expected to become BKN/OVC again during the overnight to early morning hours. A dry cold front will be moving across SE Texas this afternoon into early tonight, leading to light VRB winds. Stronger N-NE winds are expected in the wake of the front tonight into Sat morning. Wind speeds are expected to range between 10-15 KTS with gusts of 20-25 KTS for most sites, slightly stronger for GLS. Winds will begin to relax and turn ENE and cigs will become FEW/SCT Sat afternoon. Cotto && .MARINE... Issued at 133 PM CDT Fri Mar 27 2026 A weak cold front will enter the waters late tonight, resulting in a wind shift to the northeast on Saturday. Winds will remain between 15 to 25 knots with higher gusts possible through early afternoon; therefore, a Small Craft Advisory is in effect. Winds begin to weaken by Saturday afternoon, slowly transitioning to the SE Saturday night into early Sunday. Light to occasionally moderate onshore flow will persist through the entire week. The pattern aloft will begin to shift next week, resulting in the introduction of low- rain chances with the best chances towards the end of the week. JM && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 86 55 72 55 / 0 10 10 0 Houston (IAH) 87 59 76 58 / 0 10 0 0 Galveston (GLS) 79 62 73 66 / 0 10 0 0 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...Small Craft Advisory from 7 AM to 1 PM CDT Saturday for GMZ350- 370. Small Craft Advisory from 4 AM to 1 PM CDT Saturday for GMZ355- 375. && $$ DISCUSSION...JM AVIATION...Cotto MARINE...JM