


Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
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761 FXUS64 KEWX 281725 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 1225 PM CDT Sat Jun 28 2025 ...New SHORT TERM, LONG TERM, AVIATION... .KEY MESSAGES... - Near to slightly above normal temperatures expected this weekend and next week. - Low to medium chances for scattered showers and thunderstorms over the coastal plains and I-35 corridor on Sunday. - Light concentrations of Saharan dust arrive late tonight and increase early to mid next week, bringing hazy conditions to the Coastal Plains, I-35 corridor, and Hill Country. -Low chances for showers and storms persist next week. && .SHORT TERM... (Tonight through Sunday night) Issued at 1216 PM CDT Sat Jun 28 2025 The latest GOES-19 Regional Water Vapor imagery shows weak mid-level ridging still in place over South Central Texas this morning. This will result in a hot and dry day for the region for the first half of the weekend. Temperatures will climb once again into the mid to upper 90s this afternoon. Factoring in afternoon dewpoints in the mid to upper 60s and lower 70s, it`ll feel just a few degrees warmer for most, with heat indices in the 98-105 range. On Sunday, mid-level ridging weakens slightly and gets pushed eastward. This will open the door for a return to weak southeasterly flow aloft on the backside of the high. Increased mid-level moisture should result in a better chance at rain and storms in the afternoon hours. A localized surge in PWAT values is noted on model guidance Sunday, which should act to increase cloud cover over the Coastal Plains and keep afternoon highs down in the upper 80s to lower 90s. Our first wave of Saharan Dust will arrive Sunday, but some of the latest modeling guidance indicates the heaviest concentrations may remain over east Texas and southwest Louisiana. Nevertheless, expect hazy skies to still impact most of South Central Texas Sunday and beyond. With regard to precip chances, the SAL typically limits instability and suppresses convection somewhat, so confidence in storm coverage is low at this time for Sunday afternoon. && .LONG TERM... (Monday through Saturday) Issued at 1216 PM CDT Sat Jun 28 2025 A slightly more active pattern will unfold in the long term forecast period. The month of July will get started out with a chance of showers and storms most days through late next week, but those chances will remain low each day, about 10-30%, with the better chances remaining over the Coastal Plains where afternoon heating and seabreeze convection are most likely each day. Mid-level ridging will remain just to the north and east allowing weak southeasterly mid level flow to work into our area. By midweek, a slug of high PWATs in excess of 2" will work inland in association with a weak disturbance over the northern Gulf. While this disturbance is unlikely to move into Texas, some of the moisture associated with it could get far enough north to enhance/increase our precip chances, particularly Wednesday-Friday. Expect continued seasonably warm and and humid conditions, typical of early July in our area. && .AVIATION... (18Z TAFS) Issued at 1216 PM CDT Sat Jun 28 2025 Outside of any very isolated SHRA/TSRA activity this afternoon, VFR conditions through the afternoon and evening with a FEW-SCT cu field. Any SHRA/TSRA activity through sunset will be confined mainly east of the I-35 and I-37 corridors. BKN stratus is forecast to re- develop 06Z-09Z near a HDO-SAT-BAZ line then expand farther north into the Hill Country as well as I-35 corridor to AUS between 09Z- 12Z. This stratus will produce mainly MVFR ceilings and scatter out after 15Z Sunday. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 75 96 75 96 / 10 10 0 10 Austin Bergstrom Intl Airport 74 95 75 95 / 10 10 0 20 New Braunfels Muni Airport 73 93 73 93 / 0 20 0 20 Burnet Muni Airport 73 95 73 94 / 0 10 0 10 Del Rio Intl Airport 78 100 78 96 / 0 0 10 10 Georgetown Muni Airport 73 96 75 96 / 0 10 0 10 Hondo Muni Airport 73 93 73 92 / 0 10 10 30 San Marcos Muni Airport 73 93 73 94 / 10 20 0 20 La Grange - Fayette Regional 74 92 74 93 / 0 30 0 30 San Antonio Intl Airport 75 92 75 93 / 0 20 10 20 Stinson Muni Airport 75 93 75 94 / 0 20 10 30 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ Short-Term...MMM Long-Term...MMM Aviation...76