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Arkansas Winter Weather: How 1 Inch of Water Can Become 20 of Snow
Little Rock, AR – Winter storms across Arkansas can produce dramatically different snowfall totals, even when communities receive similar amounts of moisture. From Little Rock to Fayetteville, 1 inch
By Caleb Mercer · 2026-11-10T07:50:45.044Z
Little Rock, AR – Winter storms across Arkansas can produce dramatically different snowfall totals, even when communities receive similar amounts of moisture. From Little Rock to Fayetteville, 1 inch of liquid precipitation could theoretically produce 5 inches of heavy, wet snow or as much as 20 inches of lighter, fluffier snow under the right atmospheric conditions.
The difference comes down to the snow to liquid ratio, which describes how much snow accumulates from a given amount of liquid water.
Why One Inch Can Produce 20 Inches of Snow
A commonly used forecasting guideline is the 10 to 1 ratio, meaning 1 inch of liquid water produces approximately 10 inches of snow.
However, actual snowfall ratios can vary considerably.
Heavy, wet snow may have a ratio near 5 to 1, producing approximately 5 inches from 1 inch of liquid precipitation.
Under colder atmospheric conditions favorable for fluffy snow, ratios can sometimes reach 20 to 1, producing approximately 20 inches from the same moisture.
Such high ratios are possible but are not typical of every Arkansas winter storm.
Little Rock and Fayetteville: Why Snowfall Can Differ
Little Rock, located in central Arkansas, often experiences winter temperatures close to freezing, making precipitation type especially important.
Fayetteville, farther north in the Ozark Mountains, can experience colder conditions and additional influences from higher terrain.
During some winter storms, Northwest Arkansas may receive accumulating snow while central Arkansas experiences sleet, freezing rain or rain.
However, elevation alone does not guarantee heavier snowfall.
Storm tracks, wind direction and temperatures throughout the atmosphere determine where snow develops and how much accumulates.
What Arkansas Residents Should Know
Heavy, wet snow can weigh down trees and power lines, increasing the potential for damage and outages.
Lighter, fluffier snow can accumulate more deeply and create visibility problems when winds strengthen.
Freezing rain is another major concern because ice can make roads dangerous even when snowfall totals remain low.
Travel conditions can change quickly along Interstate 30, Interstate 40 and Interstate 49, particularly on bridges, overpasses and mountainous stretches.
Understanding snow to liquid ratios helps explain why snowfall estimates can change even when expected precipitation amounts remain similar.
For Arkansas residents, winter storm impacts depend on more than moisture alone. Temperature, elevation, storm tracks and precipitation type all influence what reaches the ground.