“If its windy, snowflakes can fracture, losing their "lacy" structure and leading to lower accumulations (lower snow ratios). Deep cold, in general, promotes higher snow ratios.”
https://www.weather.gov/arx/why_snowratios
I'll say one more time. There is no way in hell anyone in the heavy snow bands in this or any subforum in the NE is going to see 15:1 ratios with a coastal system and high winds. NO ONE. Please stop with the nonsense.