jun okamoto, nhk world, unago. >>> people in many areas of the u.s.re dealing with severe weather conditions. and seeing temperatures plummeting. mai shoji joins us with more in world weather. >> many locations across the u.s. is covered with a cold wave. the recent cold surge has brought the temperatures down to about freezing or even below that. even across the four corners region. we have videos coming up to show you what people are dealing with as we speak. a potent cold surge drove its way south across the u.s. this week, bringing snowfall and dropping temperatures for more than half the country. the heaviest snowfall occurred in a michigan town where 108 centimeters fell this week. authorities say that four people were killed in minnesota due to slick roads. as one snowstorm moves east, another is working its way to the west. these images out of oregon shows the snow which is already covering trees and roadways. more snow will surely make for slick conditions. traveling will be very much disturbed. we're also talking about gusts reaching to abou