Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
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968 FXUS64 KEWX 092325 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 525 PM CST Sat Nov 9 2024 ...New AVIATION... .SHORT TERM... (Tonight through Sunday night) Issued at 142 PM CST Sat Nov 9 2024 An upper level trough has lifted into the central Great Plains and the flow over Texas is from the southwest. At the surface, the cold front has moved out into the Gulf, and high pressure is settling over the region. Winds are light and generally from the north. A cooler and much drier airmass is moving in. Temperatures are mostly cooler and dewpoints 25 to 30 degrees lower than 24 hours ago. The upper flow will turn zonal during the this period. The surface high will remain in the area. Winds will be light tonight, but cold advection will be played out and low temperatures will be about the same Sunday morning as they were this morning. Abundant sunshine Sunday will warm temperatures back into the 80s. Those mainly clear skies will allow good radiational cooling Sunday night and lows Monday morning will be about the same as Sunday. && .LONG TERM... (Monday through Saturday) Issued at 142 PM CST Sat Nov 9 2024 Mild, above climatological average, temperatures will continue across South-Central Texas through the long term period. The flow aloft starts off zonal in the long term. A shortwave will then pass to the north across the Central Plains through midweek. This system will be just enough to allow for a weak cold front to move across the region on Wednesday. Surface high pressure and a northerly flow behind the front will help to reinforce a slightly drier airmass across the region. The drier air should allow for slightly cooler and more refreshing nights/mornings into Friday while the afternoon highs remain mild with only a slight dip by a few degrees through Thursday afternoon. The flow aloft turns more northwesterly into Friday and the start of upcoming weekend. This southwesterly flow aloft combined with returning south-southeasterly low-level winds with surface high pressure settling across the northern Gulf coast, results in the return of a more humid airmass and an increase in cloud cover. Rain chances remain nil besides from perhaps a stray (~5%) opportunity on Wednesday with the front and again late in the forecast period with the returning gulf moisture. && .AVIATION... (00Z TAFS) Issued at 525 PM CST Sat Nov 9 2024 VFR flying conditions prevail with clouds AOA FL040. BKN-OVC CIGs between KSAT and KDRT may move over those sites. However, FEW-SCT to prevail. Brief IFR/MVFR CIGs are possible well to the east of I-35 over the K3T5, KGYB, KT20 sites late night into early morning hours. Light mainly northerly winds around 5 KTs prevail, especially at the I-35 sites. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 58 84 58 83 / 0 0 0 0 Austin Bergstrom Intl Airport 57 83 56 83 / 0 0 0 0 New Braunfels Muni Airport 59 87 59 86 / 0 0 0 0 Burnet Muni Airport 56 81 53 80 / 0 0 0 0 Del Rio Intl Airport 55 83 57 86 / 0 0 0 0 Georgetown Muni Airport 56 81 52 81 / 0 0 0 0 Hondo Muni Airport 58 84 57 85 / 0 0 0 0 San Marcos Muni Airport 57 84 56 84 / 0 0 0 0 La Grange - Fayette Regional 59 84 56 84 / 0 0 0 0 San Antonio Intl Airport 60 85 61 85 / 0 0 0 0 Stinson Muni Airport 61 87 61 86 / 0 0 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ Short-Term...05 Long-Term...Brady Aviation...04