From Longman Dictionary of Contemporary Englishbe snowed inbe snowed inTTDNto be unable to travel from a place because so much snow has fallen there We were snowed in for three days last winter. → snow
Examples from the Corpus
be snowed in• However, there had been very heavy snow and the farm was snowed in.• What they did when they were snowed in?• We were snowed in for three days last winter. 