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Temperatures over the Chukchi Sea are predicted to hit as high as 37 degrees Fahrenheit (2.9 C) on Wednesday and Thursday as a massive high pressure ridge building over Alaska pulls warm, moist Pacific air northward. These temperatures represent staggering warmth for this Arctic Ocean zone during March when temperatures are typically about 54 degrees F (30 degrees C) cooler.

Major Warm Wind Invasion for the Chukchi This Week

(Multi-day above freezing temperatures for the Chukchi sea predicted for later this week is not a normal event for early March. Unfortunately, warm wind invasions like this one have become more common as the globe has warmed up due to human fossil fuel emissions. Image source: Earth Nullschool.)

This recent warm wind invasion is one of many observed over the past five years in which enormous bulges in the Jet Stream have pierced deep into what was once a mostly…