El Nino springs in the past have produced some big wet snowfalls in March, usually on the backside of low pressure systems moving out of northern NM. These are the types of storms that can hammer the Denver metro, the so-called "Albuquerque lows", and bring heavy rain/severe weather sometimes mixed with snow to northern OK. 2009-10 was a strong El Nino with heavy snow across OK in February/March
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