When the war began, Russia had 137 weather stations north of the Arctic Circle; Norway had 75, Denmark five. From Greenland to Alaska there were only seven little weather stationsfour of them in Canada. U.S. Army air bases established during the war left enormous areas still uncovered.
This sketchy weather plotting has been tough on U.S. weathermen, for the chief cause of northern-hemisphere weather is the "heat balance" between the cold arctic air mass and the warm air near the equator. Lacking exact information about the extreme north, the Weather Bureau could only make shrewd guesses.
Last week a bill was creeping through...
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