The South Atlantic Anomaly (SAA) refers to the area where the Earth's inner Van Allen radiation belt comes closest to the Earth's surface. This leads to an increased flux of energetic particles in this region.
"The Earth right now is experiencing a dangerous magnetic anomaly, and it is called the ‘South Atlantic Anomaly' (SAA). It is massive, growing, moving, and if it continues on its present projected course, then cosmic radiation will be coming closer in contact with Earth’s surface. The South Atlantic Anomaly is weakening the total field-strength of the entire Earth's magnetic field"
We know that the methane is lighter than air and goes way up there because of the mystery clouds.
What if the water was being produced high above the highest thunderstorm in methane explosions we call sprites and pixies. This would turn to ice and would create the "skybright" that has been observed recently at night and just before Tunguska. If the ice agglomerated it might create massive hailstones.
One thing I have noticed recently is that the raindrops seem to be getting really large.