January 22, 2005
A Good Ten Inches
The Strib says: "5.5" officially in the downtowns, but many western/northern suburbs picked up closer to 7" from yesterday's storm" but our measurement says otherwise.
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The official snow fall totals seldom have a perfect correlation to the real snow depth. A fluffy, dry snow, like we got yesterday, will be officially recorded as a lower amount that if it was a wetter, denser snow of the same depth. The weather monitors have some method of normalizing by water equivalents. I think they melt a given volume of the snow down to determine water equivalent depth, then multiply by some factor (about 10?) to get snowfall depth.
Posted by: Jim at January 22, 2005 06:41 PM