What’s Behind The Unusual Cold Driving Brazil’s Snow
The key ingredient for Brazil’s snow is a freak cold snap driven by air that traveled north from the Antarctic. The air normally trapped to the south was able to move northward thanks to a big zig in the jet stream, a fast-flowing streak of air that normally keeps colder air bottled up closer to the poles. But a breakdown in it allowed for cold air to leak further north than usual.
“Antarctica has been very cold recently and there have been strong cold shots across the Southern hemisphere over the last few weeks,” meteorologist Scott Duncan said in a Twitter direct message.
