At the NREL Flatirons tower (S of Boulder), it dropped 10.8°F (6°C) in one minute & 20.9°F (11.6°C) in two mins at 50 meters above ground, which is not far off from what I consider the benchmark of 14.4°F (8°C) in one minute on 19 Sep 1983, reported in Shapiro et al (1985). #cowx pic.twitter.com/pcx2bvyW0U

— Russ Schumacher (@russ_schumacher) December 22, 2022