Fig. 10. Paths of High and Low, Great Snow Storm of January 27-28, 1922]
This current was steered around the north side of the LOW and met the north-northeast wind. Under the new conditions the air saturated could hold only 2 or 3 grams; and so condensation and heavy precipitation resulted. The region of maximum snowfall was near Washington, and it will be seen that there is a proportional decrease north and south. The snowfall at Washington was the heaviest ever known at that city.
Unlike most storms, there was no strong cold northwest wind blowing into the depression. The temperature rose slowly. It was less a contrast of winds than a steady slow outward push of the anticyclone, and the consequent turning of the path of the cyclone eastward.
LAWS OF FORECASTING
Buys Ballot's Law.
"If you stand with your back to the wind the pressure decreases toward your left, and increases toward your right."
For navigators, this law is more generally expressed in the words of the Hydrographic Office on "Cyclonic Storms."