FXUS64 KSJT 221708 AFDSJT Area Forecast Discussion National Weather Service San Angelo TX 1208 PM CDT Sat Aug 22 2026 ...New AVIATION... .KEY MESSAGES... - A Heat Advisory is in effect for the Big Country, Heartland and Concho Valley areas this afternoon. - There is a low (15%-20%) chance for isolated to scattered thunderstorms, mainly across the Big Country, this afternoon and evening. - Hot and mainly dry weather will persist through next week. && .SHORT TERM... (Today and tonight) Issued at 102 AM CDT Sat Aug 22 2026 The main concern today will continue to be the heat affecting the area, with highs once again expected to range from around 100 degrees in our southwestern counties to potentially near 110 degrees in our Big Country counties north of I-20. So, the Heat Advisory will continue for the same area as yesterday for the Big Country, Heartland, and most of the Concho Valley. In addition to the heat, there is a low (15%-20%) chance for isolated to scattered thunderstorms for the Big Country, and areas mainly east of a Brady to Junction line. Although we aren't expecting widespread coverage or severe weather, temperature/dewpoint spreads will be large (40+ degrees Fahrenheit) which could lead to strong wind gusts over 50 mph should any storms form. Any storms that do form will end by midnight. && .LONG TERM... (Sunday through Friday) Issued at 1202 AM CDT Sat Aug 22 2026 Next week will be hot and generally dry for our area with daily highs 8-12 degrees above normal. The strong upper level high will be over the New Mexico/Texas border Sunday-Tuesday, and then slowly migrate west toward the New Mexico/Arizona border by Thursday- Friday. The hottest days look to be Sunday through Tuesday, with the high in closer proximity and the 850mb thermal ridge the strongest. Expect highs to be 104-107 across the Concho Valley and 105-110 in the Big Country. Our southern counties will have highs mostly 100- 103 degrees. Anticipate the need for additional Heat Advisories for our northern and central counties, and some locations north of I-20 may approach Extreme Heat Warning criteria. By Thursday and Friday, expect highs to be in the upper 90s/around 100 in our southern counties, and 100-105 degrees farther north across the rest of our area. With weak northerly flow aloft around the eastern side of the aforementioned high in the midweek time frame, some of the medium range models hint at a possibility for a few showers and thunderstorms to develop along a surface trough as it moves south into our area Wednesday night and Thursday. The possibility looks remote at this time, however. && .AVIATION... (18Z TAFS) Issued at 1136 AM CDT Sat Aug 22 2026 VFR conditions are expected for the remainder of the TAF period. Expect the hot and dry conditions to persist. && .PRELIMINARY POINT TEMPS/POPS... Abilene 81 106 81 107 / 10 0 0 0 San Angelo 77 104 77 104 / 0 0 0 0 Junction 75 103 73 103 / 0 0 0 0 Brownwood 77 105 77 106 / 10 0 0 0 Sweetwater 80 106 80 107 / 10 0 0 0 Ozona 74 99 73 99 / 0 0 0 0 Brady 76 103 75 103 / 0 0 0 0 && .SJT WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 7 PM CDT this evening for Brown-Callahan- Coke-Coleman-Concho-Fisher-Haskell-Jones-McCulloch-Nolan-Runnels- San Saba-Shackelford-Sterling-Taylor-Throckmorton-Tom Green. && $$ SHORT TERM...20 LONG TERM....19 AVIATION...41