FXUS64 KHGX 052351 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 651 PM CDT Sun Apr 5 2026 ...New AVIATION... .KEY MESSAGES... - Cooler and breezier today with a slight chance of light rain (mostly south of I-10). - Small Craft Advisory for the Bays and Gulf through Monday morning due to hazardous winds and seas. - Gradual warm-up expected for the second half of the week along with the chance for showers. && .DISCUSSION... Issued at 1242 PM CDT Sun Apr 5 2026 Lingering moisture left behind from yesterday's cold front and passing weak upper level disturbances has led to overcast skies and cool temperatures across SE Texas. Stratiform light to moderate showers have been lingering over our southern counties this morning, and this activity is expected to slowly move up the coast through the afternoon and evening. Not anticipating much, if any rainfall, north of I-10, and should completely exit the coast through by midnight tonight. Then the main story the next few days will be the cooler weather. Overnight low temperatures tonight will drop into the low to mid-50s for much of the region with the Piney Woods dropping into the upper 40s. Clearing skies on Monday will allow for daytime temperatures to rise into the low to mid-70s, but these same clear skies will allow for even cooler weather Monday night. Expect upper 40s to low 50s for most areas except the Houston Metro and the coast where temperatures will remain in the mid to upper 50s. Similar high temperatures are expected on Tuesday, but onshore flow begins to return Tuesday night leading to overnight lows increasing by 5-10 degrees. This southerly flow will lead to continued warming weather with highs back into the low 80s and overnight lows in the mid to upper 60s (or low 70s) by week's end. In addition to the increase in temperatures, there will be an increase in moisture with a chance of isolated streamer showers as early as Wednesday. A passing upper-level disturbance will increase rain chances Thursday into Friday with continued chances persisting into the weekend. Fowler && .AVIATION... (00Z TAF Issuance) Issued at 651 PM CDT Sun Apr 5 2026 Light showers are ongoing, though much precipitation is evaporating into virga before reaching the ground, thus have opted to exclude mentions of rain outside of the coastal TAF sites. Gusty N/NE winds should diminish this evening, returning again on Monday during the daytime and once again ceasing that evening. VFR conditions prevailing throughout the TAF period. 03 && .MARINE... Issued at 1242 PM CDT Sun Apr 5 2026 Moderate to strong offshore winds will persist through Monday morning leading to building seas to 5-8ft (occasionally higher). A Small Craft Advisory remains in effect for all waters through Monday morning, although it may be extended for portions of the Gulf waters into Monday evening depending on how quickly the seas decrease. Scattered to widespread light to moderate showers will persist through the coastal waters tonight before exited to the east. Light northeasterly winds will persist through Monday night before becoming easterly on Tuesday. Onshore flow returns by midweek and will persist through next weekend. Rain chances also return by the second half of the week. Fowler && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 50 72 48 74 / 10 10 0 0 Houston (IAH) 54 74 53 76 / 20 10 0 0 Galveston (GLS) 61 72 64 74 / 50 10 0 0 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...Small Craft Advisory until 1 PM CDT Monday for GMZ330-335-350- 355-370-375. && $$ DISCUSSION...Fowler AVIATION...03 MARINE...Fowler