Browse Items (5 total)

espy-map-1838.jpeg
JoseR
This is the first U.S. weather map. In his accompanying report, Espy states that the committee received back 50 responses from the 250 circulars it sent out to different parts of the United States and Canada regarding this notable storm. The map…
espy-map-1843-1.jpeg
JoseR
The principal phases of a storm at once. Provided here are the names and city/state locations of all of the “meteorological correspondents” who provided the data exhibited in Espy's charts. Shown here is the position and extent of a storm at a…
USdeptofAG - DC - 1901.jpg
JoseR
This weather map is published by the US Department of Agriculture. Observations were taken from 8am to 8pm where barometers reduced to Sea Level and 32degrees Fahrenheit. The heavy dotted lines inclose ares of marked changes in temperature during the…
chappelsmith-map tornado.jpeg
JoseR
This map shows what is referred to as the first scientific study of a tornado’s path and the first conclusive proof that tornadoes are an inward, upward, and onward moving column of air. In his article, Chappelsmith notes that people living five…
loomis-map-1845.jpeg
JoseR
Map showing colored areas of climate conditions on a particular day. The colored areas correspond to precipitation conditions, , i.e. snow, clear, rain, clouds, fog. Different lines depict areas of equal pressure (dashed) and areas of equal thermal…
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