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Legend Info & Storm Descriptions
Snowstorm - An all snow event for the vast majority (>80%) of the area that accumulated around 6" or more (warning level snowfall) for at least a portion of the region (a county or two wide).
Snow & Rain Storm - A winter storm that is mostly snow for the majority of the area and a minority of the storm (<50%) is rain. The storm must meet warning level snowfall (6"+) or have significant rainfall (>0.75") for a portion of the area.
Rain & Snow Storm - A winter storm that is mostly rain for the majority of the area and a minority of the storm (<50%) is snow. The storm must meet warning level snowfall (6"+) or have significant rainfall (>0.75") for a portion of the area.
Snow & Sleet Storm - A winter storm that is mostly snow and sleet for the majority of the area and meets warning level snowfall (>6" of snow and sleet combined) for a portion of the area (at least a county or two wide)
Snow & Ice Storm - A winter storm that is mostly snow and ice for the majority of the area and meets warning level snowfall (>6") or Ice Storm Warning criteria (>0.5" of ice).
Snow & (Sleet, Ice or Rain) Storm - (e.g. Snow, Sleet & Ice Storm) A winter storm that has a variety of precipitation types along with snow and meets warning level snowfall (>6") or has significant rainfall (>0.75") for a portion of the area. An example would be a Snow, Ice & Rain Storm where the majority is snow that changed to freezing rain and rain.
Blizzard - An all snow event for the vast majority (>80%) of the area that accumulated around 6" or more (warning level snowfall) for at least a portion of the region (a county or two wide). And the storm meets Blizzard Warning criteria for a portion of the area (at least a few airport sites). Blizzard criteria is defined as snow or blowing snow with wind gusts 35+ mph that reduces visibility to 1/4 mile or less for at least 3 hours.
Snow & Sleet Blizzard - A majority snowstorm that changed to sleet for the vast majority (>80%) of the area that accumulated around 6" or more (warning level snowfall) for at least a portion of the region (a county or two wide). And the storm meets Blizzard Warning criteria for a portion of the area (at least a few airport sites). Example: March 14th, 2017.
Snow & Ice Blizzard - A majority snowstorm that changed to freezing rain (ice) for the vast majority (>80%) of the area that accumulated around 6" or more (warning level snowfall) for at least a portion of the region (a county or two wide). And the storm meets Blizzard Warning criteria for a portion of the area (at least a few airport sites). Example: March 13-14th, 1993
Snow & Rain Blizzard - A majority snowstorm that changed to rain for the vast majority (>80%) of the area that accumulated around 6" or more (warning level snowfall) for at least a portion of the region (a county or two wide). And the storm meets Blizzard Warning criteria for a portion of the area (at least a few airport sites). Example: February 25-27th, 2010.
Light Snow Event - An all snow event for the majority of the area (>80%) that accumulates at least 3" (Advisory level snowfall) but less than 6" for at least a portion of the area (a county or two wide).
Light Snow & Rain Event - An majority snow event for the majority of the area (>80%) that accumulates at least 3" (Advisory level snowfall) but less than 6" for at least a portion of the area (a county or two wide). The minority of the storm (<50%) is rain and rainfall amounts are generally less than 0.75"
Light Rain & Snow Event - An majority rain event for the majority of the area (>80%) that with light rainfall totals generally less than 0.75" and snowfall totals greater than 3" but less than 6" for a portion of the area (at least a county or two wide).
Light Snow & ( Sleet, Ice or Rain) Event - (e.g. Light Snow, Sleet & Rain Event). A winter event with a variety of precipitation types including a combination of snow, sleet, ice or rain that accumulates more than 3" but less than 6" for a portion of the area (at least a county or two wide).
Snow Squall Event -A snow event where the majority of the accumulating snow was from numerous snow squalls or snow showers. Total snowfall must be at least 3" for a portion of the area (at least a few counties). Some squalls may produce localized amounts over 6". Example: February 19-20th, 2009
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