

Weather Bureau publishes the first daily weather map.ġ898 President William McKinley orders the U.S. Weather Bureau begins issuing flood warnings.ġ894 Weather observations from kites at Harvard's Blue Hill Observatory are established with self-recording thermometers to make observations of temperature aloft.ġ895 (September 30) The U.S. Weather Bureau to carry out "rain-making" experiments by setting off explosions from balloons in the air.ġ891 The U.S. The actual transfer of weather stations, telegraph lines, apparatus, and personnel takes place July 1, 1891.ġ891 The Secretary of Agriculture directs the U.S. Weather Bureau within the Department of Agriculture. Grant signs a joint resolution of Congress authorizing the Secretary of War to establish a weather service within the Army.ġ870 (November 1) Simultaneous observations are made at 24 locations by the Army Signal Corps and telegraphed to Washington, DC and other cities and ports.ġ890 (October 1) At the request of President Benjamin Harrison, Congress creates the U.S. Corresponding weather "signals" are displayed on the Tower of the Smithsonian castle.ġ856 William Ferrel publishes a mathematical model of the circulation of global winds and ocean currents.ġ860 600 stations are making regular observations, but communications are interrupted by the Civil War.ġ863 Isaac Newton, Commissioner of Agriculture, begins publishing a monthly weather and crop bulletin.ġ870 (February 9) President Ulysses S. 150 observers' data is sent by telegraph.ġ850 A daily weather map is posted in the hall of the Institution for public viewing. NWS History from STORMFAX® National Weather Service Historical Highlightsġ849 Joseph Henry, Secretary of the Smithsonian Institution, Washington, DC, establishes an extensive weather observation network.
