In various parts of Japan, the amount of snow is record-high.
Heavy snow continues to break the record this winter.
ご質問ありがとうございます。
①
"The amount of snow is record-breaking."=「雪の量は記録破りです。」
②
"In various parts of Japan"=「日本の各地で」
"the amount of snow is record-high."=「雪の量は過去最高です。」
③
"Heavy snow continues to break the record this winter."=「この冬は、大雪が記録を破りつつあります。」
ご参考に!