Question: when did the weather channel start naming winter storms
[{'answer': 'November 2012', 'provenance': [{'wikipedia_id': '38471775', 'title': 'Winter storm naming in the United States', 'start_paragraph_id': 6, 'start_character': 3, 'end_paragraph_id': 6, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Naming by The Weather Channel.\n'}]}, {'provenance': [{'wikipedia_id': '38471775', 'title': 'Winter storm naming in the United States', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 647, 'bleu_score': 0.946668591300401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9510384654075873481}, 'section': 'Section::::Naming by The Weather Channel.\n'}]}]