Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
438 FXUS64 KEWX 212335 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 635 PM CDT Mon Jul 21 2025 ...New AVIATION... .KEY MESSAGES... - Seasonably warm July weather with elevated heat indices. - Low chances for rain and thunderstorms Friday through the weekend over the Coastal Plains. && .SHORT TERM... (Tonight through Tuesday night) Issued at 210 PM CDT Mon Jul 21 2025 A weak upper level low is producing mostly cloudy skies over much of the CWA this afternoon. There is not enough deep layer moisture for any showers. This feature will move away toward the north during this period. The subtropical ridge will build over the region from the east. Dry weather will continue through the short term. This will be a persistence forecast. Temperatures will be within a few degree of normal with lows in the 70s and highs mostly in the 90s. && .LONG TERM... (Wednesday through Monday) Issued at 210 PM CDT Mon Jul 21 2025 For most of the week, subtropical ridging will keep the weather over South-Central Texas quiet. This will lead to warming temperatures across our southern and western areas Wednesday and Thursday. Despite the warming, temperatures will still be within a few degrees of normal. An upper level trough will move across the northern Gulf and approach TX by Friday. This will bring a surge of deeper layer moisture. The deeper moisture and lift from the trough will mean a chance for showers and thunderstorms over the Coastal Plains each afternoon and evening Friday through Sunday. The subtropical ridge will build back over the region Monday bringing back dry weather. && .AVIATION... (00Z TAFS) Issued at 621 PM CDT Mon Jul 21 2025 No long term concerns for this TAF forecast with winds continuing to decrease with the loss of mixing and daytime heating tonight. VFR cigs should persist until 08Z for KAUS and KSAT and slightly longer for KSSF at 10Z. Overnight expect MVFR CIGS until mid-morning Tuesday before gusty south/southeasterly winds and VFR cigs resume for the rest of the forecast period. For KDRT expect VFR conditions until 12Z with MVFR cigs taking hold until mid morning Tuesday with VFR and gusty southeasterly winds thereafter. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 77 97 75 98 / 0 0 0 0 Austin Bergstrom Intl Airport 76 97 75 97 / 0 0 0 0 New Braunfels Muni Airport 75 97 75 98 / 0 0 0 0 Burnet Muni Airport 73 93 73 94 / 0 0 0 0 Del Rio Intl Airport 78 97 77 99 / 0 0 0 0 Georgetown Muni Airport 75 95 74 96 / 0 0 0 0 Hondo Muni Airport 74 96 73 97 / 0 0 0 0 San Marcos Muni Airport 75 97 74 97 / 0 0 0 0 La Grange - Fayette Regional 75 96 75 96 / 0 0 0 0 San Antonio Intl Airport 77 97 76 98 / 0 0 0 0 Stinson Muni Airport 77 100 76 100 / 0 0 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ Short-Term...05 Long-Term...05 Aviation...CJM