Snow-Liquid Ratio Formula:
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Definition: The snow-to-liquid ratio (SLR) compares the depth of snow to the amount of liquid water it would produce if melted.
Purpose: It helps meteorologists and winter weather enthusiasts understand snow density and forecast potential water equivalent from snowfall.
The calculator uses the formula:
Where:
Explanation: The snow depth is divided by the water depth to determine how many inches of snow equals one inch of water.
Details: Understanding SLR helps predict snow weight on structures, potential flooding from snowmelt, and the water content of snowpack.
Tips: Enter the measured snow depth and the equivalent water depth (from melting the snow). Both values must be > 0.
Q1: What is a typical snow-liquid ratio?
A: Average SLR is about 10:1 (10 inches of snow equals 1 inch of water), but can range from 5:1 for wet snow to 30:1 for dry powder.
Q2: How do I measure water equivalent?
A: Collect snow in a rain gauge, let it melt, then measure the water depth.
Q3: Why does the ratio vary?
A: It depends on temperature, humidity, and snow crystal type during formation.
Q4: What does a high ratio indicate?
A: Higher ratios mean lighter, fluffier snow with less water content.
Q5: How is this used in weather forecasting?
A: Forecasters use SLR to convert predicted liquid precipitation into expected snow amounts.