Austin climatology firmly rejects a 55°F high on May 10th. Historical high temperature data for Austin (AUS) on May 10th over the last decade shows sustained highs in the 75-90°F range, averaging 83.5°F. The 30-year climate normal for May average high is 84°F. A 55°F high would constitute a negative 29°F anomaly from the mean, an extreme event that almost never occurs in mid-May. Such a temperature requires an unprecedented late-season Arctic air mass penetration with persistent cloud cover and northerly advection, which current synoptic patterns do not support. Even record-low maximums for early May are typically in the upper 50s; for May 10th, 55°F or below is statistically beyond a 3-sigma event. Sentiment: Zero meteorological model ensemble output suggests such an event. 99% NO — invalid if a major, unprecedented polar vortex collapse redirects a deep trough directly over Texas by May 10th.
Austin's May 10 climatological high averages 84°F. A 55°F daytime max requires a polar vortex intrusion, highly improbable this late. Strong diurnal heating expected. 99% NO — invalid if a record-breaking arctic blast hits Central Texas.
Austin climatology firmly rejects a 55°F high on May 10th. Historical high temperature data for Austin (AUS) on May 10th over the last decade shows sustained highs in the 75-90°F range, averaging 83.5°F. The 30-year climate normal for May average high is 84°F. A 55°F high would constitute a negative 29°F anomaly from the mean, an extreme event that almost never occurs in mid-May. Such a temperature requires an unprecedented late-season Arctic air mass penetration with persistent cloud cover and northerly advection, which current synoptic patterns do not support. Even record-low maximums for early May are typically in the upper 50s; for May 10th, 55°F or below is statistically beyond a 3-sigma event. Sentiment: Zero meteorological model ensemble output suggests such an event. 99% NO — invalid if a major, unprecedented polar vortex collapse redirects a deep trough directly over Texas by May 10th.
Austin's May 10 climatological high averages 84°F. A 55°F daytime max requires a polar vortex intrusion, highly improbable this late. Strong diurnal heating expected. 99% NO — invalid if a record-breaking arctic blast hits Central Texas.
