Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
129 FXUS64 KEWX 010639 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 139 AM CDT Mon Sep 1 2025 .KEY MESSAGES... - Flood Watch remains in effect for some parts of South Central Texas through noon today - Locally heavy rain possible across portions of the southern Edwards Plateau and Rio Grande but not limited to these areas - Dry weather returns Tuesday with rain chances showing up for next weekend && .SHORT TERM (THROUGH TUESDAY)... Area Doppler radars are showing light rain across parts of the southern Edwards Plateau and Val Verde county as of 1 AM CDT Monday. Some hires models continue this trend while others show moderate to locally heavy rain later this morning into the afternoon. The latest GFS and NAM solutions keep shower and thunderstorm activity across the southern Edwards Plateau and Rio Grande for most of today (Monday). For areas across the Hill Country, I-35 corridor, and coastal plains, things look drier, however, a few moderate to heavy showers and isolated thunderstorms could develop in the afternoon. Based on latest weather guidance, decided to cancel several counties from the Flood Watch while kept those along and west of I-35 corridor through noon today. The frontal boundary responsible of Sunday`s rain is now across the coastal plains and extends into the Rio Grande. There is little movement to the tail end of the frontal boundary and remains over the Rio Grande through Tuesday. Over these locations is where the best chances for rain remain. Otherwise, dry weather conditions are expected over most areas on Tuesday. && .LONG TERM (TUESDAY NIGHT THROUGH SUNDAY)... Dry weather conditions prevail Tuesday night through Friday. By the upcoming weekend, rain chances return as an upper level disturbance moves across the local area according to the GFS solution while the ECMWF keeps dry conditions. Time will tell as we get closer to the weekend and get hires data to identify the potential for rain. Daily temperatures are likely to range from the lower to upper 90s and overnight lows in the mid to upper 60s to mid 70s. && .AVIATION (06Z MONDAY THROUGH TUESDAY)... SHRA are dissipating over the Edwards Plateau while patchy IFR/MVFR CIGs have developed over parts of the Hill Country. Expect areas of IFR/MVFR CIGs overnight into morning hours while SHRA/TSRA redevelop over the Edwards Plateau, Hill Country, and Rio Grande areas, then drift to the east toward the I-35 corridor, especially the KSAT/KSSF sites. There is a possibility that SHRA/TSRA disrupt the restricted CIGs and this is shown in the TEMPOs for KSAT/KSSF. Additional SHRA/TSRA are possible during the afternoon into evening hours and have maintained PROB30s for those time periods. There are very low chances of restricted CIGs/VSBYs Monday night and have left mention out. Light winds of 7 KTs can be expected, though wind gusts to 40 KTs, as well as erratic directions are possible near SHRA/TSRA. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 72 95 72 96 / 10 0 0 0 Austin Bergstrom Intl Airport 72 95 71 95 / 10 10 0 0 New Braunfels Muni Airport 71 96 70 98 / 10 10 0 0 Burnet Muni Airport 69 91 68 92 / 0 0 0 0 Del Rio Intl Airport 73 98 75 99 / 10 10 0 0 Georgetown Muni Airport 70 93 70 93 / 0 0 0 0 Hondo Muni Airport 70 95 71 98 / 10 10 0 0 San Marcos Muni Airport 71 96 70 98 / 10 10 0 0 La Grange - Fayette Regional 72 93 70 95 / 10 10 0 0 San Antonio Intl Airport 74 96 73 98 / 10 10 0 0 Stinson Muni Airport 75 97 75 99 / 10 10 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... Flood Watch until noon CDT today for Bandera-Bexar-Blanco- Burnet-Comal-Edwards-Gillespie-Hays-Kendall-Kerr-Kinney-Llano- Medina-Real-Travis-Uvalde-Val Verde-Williamson. && $$ SHORT TERM...17 LONG TERM...17 AVIATION...04