!!? Phase of the moon affects amount of rainfall http://phys.org/news/2016-01-phase-moon-affects-amount-rainfall.html
New University of Washington research to be published in Geophysical Research Letters shows that the lunar forces affect the amount of rain - though very slightly.
"As far as I know, this is the first study to convincingly connect the tidal force of the moon with rainfall," said corresponding author Tsubasa Kohyama, a UW doctoral
student in atmospheric sciences. Kohyama was studying atmospheric waves when he noticed a slight oscillation in the air pressure. He and co-author John (Michael) Wallace,
a UW professor of atmospheric sciences, spent two years tracking down the phenomenon.
Air pressure changes linked to the phases of the moon were first detected in 1847,and temperature in 1932, in ground-based observations. An earlier paper by the UW
researchers used a global grid of data to confirm that air pressure on the surface definitely varies with the phases of the moon.
"When the moon is overhead or underfoot, the air pressure is higher," Kohyama said. Satellite data over the tropics, between 10 degrees S and 10 degrees N, shows a slight dip in rainfall
when the moon is directly overhead or underfoot. The top panel shows the air pressure, the middle shows
the rate of change in air pressure, and the bottom shows the rainfall difference from the average.
The change is 0.78 micrometers, or less than one ten thousandth of an inch, per hou