FXUS64 KHGX 072317 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 617 PM CDT Sat Jun 7 2025 ...New AVIATION... .SHORT TERM... (This evening through Sunday Night) Issued at 1227 PM CDT Sat Jun 7 2025 Hot, humid, and hazy conditions continue through the weekend as a strong ridge of high pressure builds over South Texas. High temperatures this afternoon will be rising into mid 90s for most of the region, and then upper 80s along the coast with heat indices in the 100-105 degree range. Tomorrow is shaping up to be slightly warmer as hazy conditions begin to exit the region. High temperatures will be rising into the mid to upper 90s inland, and then upper 80s to low 90s along the coast. Heat indices will see a similar slight uptick, into the 102-107 degree range, and we will be borderline Heat Advisory conditions. Overnight temperatures will be in the mid to upper 70s inland, and low 80s at the coast, which is about 7-10 degrees above normal. Due to the fact we are seeing these high temperatures this early in the summer season, the experimental HeatRisk shows widespread Major impacts (level 3 of 4) for both today and tomorrow. This means that this level of heat impacts anyone without effective cooling and/or adequate hydration. There may be a few isolated streamer showers across the area this afternoon and Sunday afternoon producing a sprinkle here or there, but generally the short term will be rain-free. There will be a shortwave passing through the RRV Sunday evening into Sunday night likely producing a cluster of thunderstorms. These thunderstorms may live long enough to pass through the Piney Woods late Sunday night into Monday morning. If these storms survive as far south of the Piney Woods, there could be an isolated strong thunderstorm. Rain chances increase for across the area heading into the work week, but read more on that below. Fowler && .LONG TERM... (Monday through next Friday) Issued at 1227 PM CDT Sat Jun 7 2025 The upper-level ridge over Texas begins to break down and shift to the west on Monday as a large upper level trough swings through the Northern Plains/Great Lakes region. Weak shortwave troughs moving around the edge of the large low will be swinging through midweek before this upper level low exits to the east. Another disturbance exits into the Southern Plains and continues eastward beginning Wednesday and continuing through Friday. All this messiness aloft will lead to continued rain chances through the majority of the work week. The chance of showers and storms remain greatest over the Piney Woods on Monday into Tuesday, but then chances increase across the entire region by Wednesday through the remainder of the period. Conditions on Monday will still be hot and humid across the area with highs in the 90s for most of the area. But with increasing rain chances and cloud cover, temperatures begin to fall back closer to normal by midweek with highs in the upper 80s to low 90s. However, the increased cloud cover will also keep the area well insulated at night keeping the overnight temperatures above normal: mid to upper 70s inland, low 80s at the coast. Fowler && .AVIATION... (00Z TAF Issuance) Issued at 608 PM CDT Sat Jun 7 2025 Gusty windy late this afternoon should subside this evening with lighter winds prevailing thereafter. Cloud decks around 1500-3000 ft will develop tonight. These decks may fill in at times to bring MVFR conditions, especially across the northern terminals during the early morning hours of Sunday. Patchy fog will also be possible during this period of the forecast. After sunrise, expect all fog & CIGS to clear out as winds & gusts pick up once again. 03 && .MARINE... Issued at 1227 PM CDT Sat Jun 7 2025 Onshore flow will persist through at least mid-week next week with speeds around 10-15kts during the day, increasing to 17-19kt and occasional higher gusts during the overnight periods. Small craft may need to exercise caution at times due to these breezy conditions. Seas will generally be 2-4ft near shore, and 3-5ft off shore through next week as well. Rain chances return by Tuesday with continued chances through the remainder of the week. The persistent onshore flow may result in an increase risk of strong rip currents beginning tomorrow. Fowler && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 76 96 76 95 / 10 0 10 20 Houston (IAH) 79 97 79 96 / 10 0 0 20 Galveston (GLS) 82 87 82 87 / 10 0 10 20 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...Fowler LONG TERM....Fowler AVIATION...03 MARINE...Fowler