Question: When did the great storm of 1987 happen?
Disambiguated questions and answers: question: When did the great storm of 1987 formed?
When did the great storm of 1987 dissipated?
answer: October 15,1987
October 16,1987
Natural Questions answer: 15 October 1987
16 October 1987 (from the Wikipedia article "Great Storm of 1987")