Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
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446 FXUS64 KEWX 271732 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 1232 PM CDT Thu Jun 27 2024 ...New AVIATION... .SHORT TERM... (Today through Friday) Issued at 148 AM CDT Thu Jun 27 2024 A weakness in the 500mb ridge may afford the Hill Country, portions of the I-35 Corridor, and Coastal Plains a quick round of showers or storms Thursday afternoon/evening. A complex of storms over the Panhandle will slide southward under weak northerly flow around the eastern periphery of the 500mb High situated over SW Texas today. These storms may send an outflow boundary into our CWA, and during peak heating, we may see a few storms fire up along any boundary that moves into our neck of the woods. Most will remain dry, but a lucky few may get a quick round of relief. A Heat Advisory will be in effect once again through 7pm this evening for the I-35/I-37 Corridor and points eastward. Temperatures will top out in the upper 90s to near 100 today, making it the hottest day of this latest stretch of heat. Heat indices are expected to climb into the 105-112 range, so make sure you find a way to stay cool and hydrated if you must be outdoors this afternoon. On Friday, expect more of the same in the heat department, as temperatures soar into the upper 90s to near 100. Heat indices will again climb into the 105-112 range for the I-35/I-37 Corridor and points east and another Heat Advisory may be needed. && .LONG TERM... (Friday night through Wednesday) Issued at 148 AM CDT Thu Jun 27 2024 The upper level ridge will remain centered just north of the area over the weekend maintaining an influence over the area. A subtle increase in moisture across the southern areas, south of U.S. 90, is indicated Sunday and could generate very isolated showers. However, most of the deeper moisture will be well south of the region with the tropical wave. The ridge is forecast to center northeast of the area during the early to middle part of next week. Continued warm and dry for most of the region, with the exception of a 10-20% chance of stray afternoon showers in the Coastal Plains. Will continue to monitor for heat advisories during this time. Only other thing of note, we are entering the Saharan dust season. The first round of light dust could arrive as early as Saturday, with more moderate and noticeable amounts arriving Sunday and Monday per dust aerosol optical thickness and vertical concentration forecasts from GMAO. Anticipate slightly more colorful sunrises and sunsets Sunday and Monday and hazy/milky appearance to the sky during the day. && .AVIATION... (18Z TAFS) Issued at 1231 PM CDT Thu Jun 27 2024 VFR conditions are expected through the period. There is a low end chance an isolated thunderstorm develops in Central Texas late this afternoon near AUS, but confidence is too low to include in the TAF. Southerly to southeasterly wind continues through the period mainly at or below 12 knots. Gusts up to 20 knots possible at DRT through 02Z. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 79 100 80 99 / 10 0 0 0 Austin Bergstrom Intl Airport 77 98 79 99 / 0 0 0 0 New Braunfels Muni Airport 77 99 79 98 / 0 0 0 0 Burnet Muni Airport 78 98 79 97 / 0 0 0 0 Del Rio Intl Airport 82 104 83 102 / 0 0 0 0 Georgetown Muni Airport 77 98 78 98 / 0 0 0 0 Hondo Muni Airport 77 99 79 99 / 0 0 0 0 San Marcos Muni Airport 76 98 77 97 / 0 0 0 0 La Grange - Fayette Regional 78 95 79 95 / 0 0 0 0 San Antonio Intl Airport 79 99 80 99 / 0 0 0 0 Stinson Muni Airport 79 99 80 100 / 0 0 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 7 PM CDT this evening for Atascosa-Bastrop- Bexar-Caldwell-Comal-De Witt-Fayette-Frio-Gonzales-Guadalupe-Hays- Karnes-Lavaca-Lee-Travis-Williamson-Wilson. Heat Advisory from 1 PM to 7 PM CDT Friday for Atascosa-Bastrop- Bexar-Caldwell-Comal-De Witt-Fayette-Frio-Gonzales-Guadalupe-Hays- Karnes-Lavaca-Lee-Travis-Wilson. && $$ Short-Term...MMM Long-Term...76 Aviation...27