Current ECMWF and GFS ensemble means firmly project a robust high-pressure ridge establishing over the Southern Plains by May 5th. This will induce persistent southerly flow, advecting warm, moist air into the Austin metro. Max surface temperatures are consistently modeled in the low-to-mid 80s, an +1.8 sigma deviation from the 64-65°F target. Such suppressed daytime heating requires a significant, unforecasted cold advection event or sustained heavy precipitation, neither evident in current synoptic patterns. 95% NO — invalid if a major, unforecasted shortwave trough triggers precipitative cooling below 70°F.
Current ECMWF and GFS ensemble means firmly project a robust high-pressure ridge establishing over the Southern Plains by May 5th. This will induce persistent southerly flow, advecting warm, moist air into the Austin metro. Max surface temperatures are consistently modeled in the low-to-mid 80s, an +1.8 sigma deviation from the 64-65°F target. Such suppressed daytime heating requires a significant, unforecasted cold advection event or sustained heavy precipitation, neither evident in current synoptic patterns. 95% NO — invalid if a major, unforecasted shortwave trough triggers precipitative cooling below 70°F.
