How heavy is the snow going be? Will the trains be still running?
How is the snow storm? Is the traffic still running?
Is the snow storm that bad that the trains are delayed?
snow storm 大雪
traffic 交通
trains 電車
交通が乱れる
The traffic is very bad today.
まだ電車は動いてる
The trains are still running.
下記はご質問の文章そのままです。
Is the snow storm that bad that the trains are delayed?
「大雪で電車ダイヤが乱れてるの？」
電車が来ないんだ〜、などの話をしているような文脈で、「雪のせいで？」と言うには、
Is it because of snow?
です。
日本 
