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On this date in 1871, the War Department’s Signal Service issued the first official weather forecast for the nation.
Synopsis of Weather Report for the last twenty-four hours
The storm of the 18th, which left the East Atlantic coast last night, was followed by a rapid recovery of pressure and high northwest winds. Today a low barometer has prevailed on the Lakes, gradually giving way to the pressure from the South. A pretty decided increase has taken place in the pressure in the southern States, attended by clear weather and clear winds. Humidity has been small in the North-east and on the Atlantic. A steady pressure , with fair weather, holds in the West, but decided fall is reported from San Francisco.
Probabilities
There are no indications of an approaching disturbance in any part of the country. Clear and fair weatheris anticipated for to-morrow in the regions south and west of Pennsylvania, clouds and light south and west wids in the eastern States.