


Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
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224 FXUS64 KEWX 200604 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 104 AM CDT Fri Jun 20 2025 ...New AVIATION... .DISCUSSION... (Tonight through Thursday) Issued at 127 PM CDT Thu Jun 19 2025 Key messages: - Seasonable temperatures continue - Low (10-30%) rain/storm chances for Today/Friday and again for middle of next week, focused in southern and eastern portions of the region Mid-level ridging is on the move but currently is centered across New Mexico and the Texas panhandle. Otherwise, the far outer upper level cloud pattern from Hurricane Erick was able to extend into South Texas. Latest satellite imagery shows cumulus cloud streaks over our region, resulting in a partly sunny to partly cloudy sky. Within these cloud streaks, some isolated low topped showers have been able to establish for locations mainly along and to the south of the I-10 and US highway 90 corridor. Mesoanalysis indicates the PWATs were a tad higher than short term guidance had previously forecast for entering this morning. The sea breeze later today may help spark some additional activity as well. There could be a few lightning strikes with the afternoon heating. Any activity then declines after sunset. With all of this said, most locations will still remain dry and rain free. Friday looks to trend similar as today with isolated activity that favors our southern and eastern most areas with streamer showers and sea breeze development. Most locations again will stay rain free. The weekend into Monday looks to trend as the driest stretch through the period as a little more concentrated plume of Saharan Dust arrives and brings in lower PWATs over the region. The middle of next week will see the rain/storm chances gradually rise over areas along and east of the I-35 corridor as the PWATs do rise slightly once that plume of Saharan Dust disperses. Little variation in the temperature department is expected through the upcoming week with seasonable conditions. The afternoon highs are to remain in the low to mid 90s across most locations while overnight lows stay in the low to mid 70s. Portions of the Rio Grande could occasionally near or top 100 degrees through the week ahead. Heat indices will generally peak each afternoon in the mid 90s to around 105 degrees. Winds will feature light to moderate southeast to east-southeasterly breezes through the period. .AVIATION... (06Z TAFS) Issued at 1243 AM CDT Fri Jun 20 2025 Surface to H7 ridging over the northern Gulf has set up a fairly uniform E-W pressure gradient over South-central TX for tonight. A 20 to 30 knot low level exists over the area with slightly higher winds over DRT. With few high clouds or nearby perturbations to influence the winds and clouds, a mid June persistence pattern of low clouds forming around midnight and breaking up by midday is continued with mainly 1000-2000 ft cigs predawn and 2000 to 3000 ft cigs prevailing after sunrise. As usual, the onset of lower cigs is appearing fastest at SAT, then SSF, and slowest at DRT with AUS just behind the SSF timing. Cigs formed by 09Z at DRT as the low atmosphere winds are a little more onshore than normal. The winds will trend a little more to due south over the next day, so will push the cloud arrival to 10Z there. Friday night/Saturday morning winds may continue more southerly, leading to a slightly later arrival of low clouds at all sites. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 76 96 76 96 / 0 10 0 0 Austin Bergstrom Intl Airport 75 95 75 95 / 0 10 0 0 New Braunfels Muni Airport 74 93 74 95 / 0 10 0 0 Burnet Muni Airport 73 93 74 94 / 0 0 0 0 Del Rio Intl Airport 76 97 76 96 / 10 0 10 10 Georgetown Muni Airport 75 94 74 95 / 0 0 0 0 Hondo Muni Airport 74 92 74 93 / 10 10 10 10 San Marcos Muni Airport 74 94 74 95 / 0 10 0 0 La Grange - Fayette Regional 75 93 75 93 / 0 10 0 10 San Antonio Intl Airport 76 93 76 94 / 10 10 0 0 Stinson Muni Airport 76 94 76 95 / 10 10 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ Short-Term...Brady Long-Term...Brady Aviation...18