File:US Weather Map, 8 Nov 1913.png
This image was copied from wikipedia:en. The original description was:
Weather map drawn by the Weather Bureau's Toledo observer and published in the Toledo Blade in Nov. 1913. Depicts the formation of the w:en:Great Lakes Storm of 1913. Unlike modern weather maps, these showed no warm/cold fronts, since frontal mechanisms were not yet understood, and isobars were located in part by eye and guess. (Courtesy: White Hurricane, via Toledo-Lucas County Public Library).
Saturday, November 8th: A surface low has developed along the cold front, though its center is probably somewhat north of what's shown here. The huge mass of high pressure to the west — the source of the northwesterly storm winds over the Lakes — is now clearly visible. The southward bulge of low pressure embraces -- even as it obscures -- the developing surface low over Georgia that will move north overnight to become the final piece in a cataclysmic atmospheric chain of events. (excerpt from White Hurricane)
This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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Original upload log
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00:30, 8 February 2005 | w:en:User:Brian0918 | 1000×574 | 272 KB | Weather map drawn by the Weather Bureau's Toledo observer and published in the Toledo Blaze in Nov. 1913. Depicts the formation of the <a href="/key/Great_Lakes_Storm_of_1913" title="Great Lakes Storm of 1913">Great Lakes Storm of 1913</a>. Unlike modern weather maps, these showed no warm/cold fronts, since frontal mechanisms w |