Area Forecast Discussion
Issued by NWS San Angelo, TX
Issued by NWS San Angelo, TX
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134 FXUS64 KSJT 171149 AFDSJT Area Forecast Discussion National Weather Service San Angelo TX Issued by National Weather Service Lubbock TX 649 AM CDT Fri Jul 17 2026 ...New AVIATION... .KEY MESSAGES... - Scattered to numerous showers and thunderstorms, some producing very heavy rainfall, expected to redevelop overnight and continue through Friday. Excessive rainfall and flooding possible. - A Flood Watch in effect until 7 PM Friday for areas south of a Roby to Abilene to Brownwood line, including the Northern Edwards Plateau, Northwest Hill Country, Concho Valley, Heartland, and portions of the Big Country. && .SHORT TERM... (Today and tonight) Issued at 1218 AM CDT Fri Jul 17 2026 Heavy rainfall and flooding are the main concerns through the next 24 hours. An upper level to our west will slowly track north this morning. West Central Texas will be on the east side of this system with abundant moisture being pulled up from the south. Precipitable water (PWAT) values will climb to 1.8 to 2 inches or higher, so plenty of moisture is available for heavy rainfall. Showers and thunderstorms are already developing just south of the area and most of the CAMs show this activity expanding in coverage and spreading north into the area through the morning hours. The corridor of heaviest rain looks to be from the I-10 corridor into the Concho Valley and then into southern portions of the Big Country. There is still some uncertainty on exactly where the heaviest rainfall will set up, but some locations will likely see training of cells with high rain totals. The Flood Watch remains in effect through Friday evening for much of the area. Rain chances will shift into the Big Country by mid to late morning, with a decrease in coverage during the afternoon hours. At least isolated to scattered showers and thunderstorms will continue into the afternoon hours, especially across our western counties. Highs will continue to be below normals, in the mid 80s. Drier conditions are forecast Friday night into Saturday morning with lows generally in the upper 60s to lower 70s. && .SHORT TERM... (Today and tonight) Issued at 1218 AM CDT Fri Jul 17 2026 Heavy rainfall and flooding are the main concerns through the next 24 hours. An upper level to our west will slowly track north this morning. West Central Texas will be on the east side of this system with abundant moisture being pulled up from the south. Precipitable water (PWAT) values will climb to 1.8 to 2 inches or higher, so plenty of moisture is available for heavy rainfall. Showers and thunderstorms are already developing just south of the area and most of the CAMs show this activity expanding in coverage and spreading north into the area through the morning hours. The corridor of heaviest rain looks to be from the I-10 corridor into the Concho Valley and then into southern portions of the Big Country. There is still some uncertainty on exactly where the heaviest rainfall will set up, but some locations will likely see training of cells with high rain totals. The Flood Watch remains in effect through Friday evening for much of the area. Rain chances will shift into the Big Country by mid to late morning, with a decrease in coverage during the afternoon hours. At least isolated to scattered showers and thunderstorms will continue into the afternoon hours, especially across our western counties. Highs will continue to be below normals, in the mid 80s. Drier conditions are forecast Friday night into Saturday morning with lows generally in the upper 60s to lower 70s. && .LONG TERM... (Saturday night through next Friday) Issued at 1132 PM CDT Thu Jul 16 2026 On Saturday, the low will weaken and be over the southeastern corner of New Mexico. With weak lift and remaining moisture east of this low, isolated to scattered showers and thunderstorms will be possible Saturday, mainly in the afternoon across the western half of our area (generally west of a Haskell-Ballinger-Sonora line). A few showers and storms will be possible once again Sunday afternoon west of a Robert Lee-San Angelo-Ozona line. With a little more sunshine Sunday, highs will be in the upper 80s to lower 90s. Drier conditions and hotter temperatures (more typical of mid- summer) are expected next week. A large upper level ridge will be centered over the central Rockies and central Plains Monday, and then shift south and become centered over the Red River Valley by midweek. Highs Monday will range from around 90 in the Northern Edwards Plateau, to the mid 90s in the Big Country. By Wednesday and Thursday, expect highs to range from the lower 90s in the Northern Edwards Plateau, to the upper 90s/around 100 degrees in the Big Country. && .AVIATION... (12Z TAFS) Issued at 638 AM CDT Fri Jul 17 2026 IFR to MVFR CIGs will persist at all TAF sites through the early morning thanks to the widespread development of showers and thunderstorms. This trend is expected to continue through the morning, before we begin to see a decrease in coverage from south to north from late morning into the early afternoon. The main threat with this activity will be the threat for very heavy rainfall, which has already, and may continue to result in reduced VSBYs and flooding concerns at the terminals. Although not as likely, we cannot rule out the potential for a localized strong wind gust with stronger storm cores. VFR CIGs are expected to return at all TAF sites by the afternoon, where we may see a brief slight uptick in southerly winds to around 10-20G25KTs before winds calm to less than 15KTs by the evening time-frame. && .PRELIMINARY POINT TEMPS/POPS... Abilene MMM MMM MMM MMM / MMM MMM MMM MMM San Angelo MMM MMM MMM MMM / MMM MMM MMM MMM Junction MMM MMM MMM MMM / MMM MMM MMM MMM Brownwood MMM MMM MMM MMM / MMM MMM MMM MMM Sweetwater MMM MMM MMM MMM / MMM MMM MMM MMM Ozona MMM MMM MMM MMM / MMM MMM MMM MMM Brady MMM MMM MMM MMM / MMM MMM MMM MMM && .SJT WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...Daniels LONG TERM....19 AVIATION...99