Solar Eclipses Can (Slightly) Change Weather on Earth
It has been known that with the sun being partially (or fully) obscured by the moon, solar eclipses can result in about 5˚F cooler temperatures within they shadows, but evidence to whether it could alter the weather through these changes was fleeting, until a recent study.
The study, by Giles Harrison and Suzanne Gray of University of Reading, analyzed an August 1999 total solar eclipse that affected Europe. The duo gathered weather data from the eclipse’s path and compared it to a forecast that they had created, using pre-eclipse conditions and computer modeling, which did not factor in the possible change due to the eclipse.
According to their comparison, the areas affected experienced a decrease in wind of about 1.6 miles per hour and a direction change of about 20˚ more southerly. But don’t fret, their aren’t going to be any eclipse-related cyclones, like H. Helm Clayton claimed in 1901.