When I was Dr. Dewpoint for Intellicast, I found and reported that the monthly records for most tornadoes from the fall through the spring were in La Nina years.  The worst tornado outbreak, The Superoutbreak of 1974” came after one of the strongest La Ninas.

In recent weeks, Eugenio Hackbaart of the Brazilian METSUL Meteorologia, observed a similarity with seasonal weather patterns in southern Brazil and North America in corresponding seasons. This lead him to suggest we may be surprised by some of the cold here this upcoming winter.

He wrote to me last night and indicated that Brazil experienced a significant severe weather outbreak with very large damaging hail and tornadoes and he wondered whether the same relationship I found with the severe weather here in La Ninas applied to their region. He forwarded two links that show some remarkable photographs of hail and hail and tornado damage. See the hail photos here and the tornado damage photos here. Though the text is in Portuguese, the photos require no translation. The holes in the roof were common and included tin roofs. The damage was in the state of Rio Grande Do Sul in southern Brazil.