Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
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093 FXUS64 KEWX 301828 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 128 PM CDT Thu Jul 30 2026 ...New SHORT TERM, LONG TERM... .KEY MESSAGES... Updated at 124 PM CDT Thu Jul 30 2026 - Hot and dry weather is expected through the rest of the week. - A Moderate (level 2 of 4) to Major (level 3 of 4) Heat Risk is expected every day into early August. - Weak frontal boundary brings chance of showers and isolated thunderstorms Saturday afternoon into Sunday. && .SHORT TERM... (Tonight through Friday night) Issued at 124 PM CDT Thu Jul 30 2026 Heat will continue to be the main concern across South Central Texas as the region remains under the influence of mid/upper level ridging, although the ridge is expected to shift west towards the Desert Southwest tomorrow. Stratus clouds will once again develop late tonight, which should limit overnight cooling and result in another warm and humid night with lows in the mid to upper 70s. A few areas that remain mostly clear may observe temperatures in the low 70s, most likely across portions of the Hill Country. Morning stratus should scatter/lift by mid to late morning on Friday, making way for another hot afternoon across the region. Highs will remain near to slightly above normal for late July standards, with most areas warming into the upper 90s to 100 degrees, and a few areas across the Rio Grande Plains warming to around 100-103 degrees Friday. Slightly lower afternoon dew points should keep heat index values below Heat Advisory criteria. However, it will still be hot and anyone spending time outdoors should continue to take proper heat safety precautions to avoid heat-related illnesses. && .LONG TERM... (Saturday through next Thursday) Issued at 124 PM CDT Thu Jul 30 2026 The ridge remains centered over the Desert Southwest this weekend, placing South Central Texas beneath northwesterly flow aloft. Meanwhile, an upper level trough translating across the Plains is expected to send a weak frontal boundary southward on Saturday and Sunday. Ahead of this boundary, precipitable water values are expected to increase, but guidance continues to range from around 1.5 inches to near 2 inches. Isolated to scattered showers and storms may develop as early as Saturday morning across portions of the Hill Country, but most likely Saturday afternoon, as the frontal boundary pushes south, and Saturday night into Sunday across the Coastal Plains. A few strong storms cannot be ruled out, primarily with a gusty wind or small hail threat. Otherwise, rainfall amounts are forecast to remain fairly light as the front moves through the region.The first week of August will feature seasonably hot temperatures and rain-free conditions as the influence of the ridge returns once again. Triple-digit heat index values are likely along and east of the I-35 corridor, so continue to practice heat safety! && .AVIATION... (18Z TAFS) Issued at 1218 PM CDT Thu Jul 30 2026 Predominately VFR at all sites through the period. MVFR cigs may develop again along the I-35 airports around day-break Friday for a few hours but may not be as expansive as in previous days due to a more southerly wind component. SSE/S 8-12kts winds at the I-35 airports thru 03-06z before turning S/SSW. SE winds 8-12kts with ISO low-end gusts up to 18kts continue at KDRT. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 76 99 77 98 / 0 0 0 10 Austin Bergstrom Intl Airport 76 99 76 98 / 0 0 0 10 New Braunfels Muni Airport 74 99 75 98 / 0 0 0 10 Burnet Muni Airport 73 98 75 96 / 0 0 0 20 Del Rio Intl Airport 77 100 78 99 / 0 0 0 0 Georgetown Muni Airport 75 99 76 98 / 0 0 0 20 Hondo Muni Airport 73 98 75 98 / 0 0 0 10 San Marcos Muni Airport 74 99 75 99 / 0 0 0 10 La Grange - Fayette Regional 75 100 76 99 / 0 0 0 0 San Antonio Intl Airport 76 99 77 98 / 0 0 0 10 Stinson Muni Airport 76 99 77 99 / 0 0 0 10 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...Garcia LONG TERM....Garcia AVIATION...Wyatt