This Day in National/World Weather History ...
 30 October 1948 → The Donora, PA smog disaster finally came to an end. For five days pollution from industry in the area was trapped in the lower atmosphere over the Monongahela Valley, killing 20 people and making 2000 people sick.
 30 October 2004 → University of Hawaii students visiting the library had to escape through a window due to surging flood waters.
 30 October 2011 → An unusually severe early season winter storm swept up the Appalachians into New England. Over a foot of snow fell from West Virginia to Maine, with more than two feet in the mountains of Massachusetts and New Hampshire. Winds over 50 mph were reported on Nantucket Island and Martha's Vineyard.

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August 10, 1886:

An estimated F3 tornado moved southeast from 10 miles northwest of Aberdeen. This massive tornado destroyed four homes and a dozen barns. This is the earliest significant tornado on record for Brown County.

August 10, 2007:

Several supercell thunderstorms developed along a surface frontal boundary during the evening bringing large hail, damaging winds, along with a couple tornadoes. An EF0 tornado touched down north of Timber Lake with no damage reported. Another EF0 tornado touched down briefly north of Trail City with no damage occurring. Wakpala, in Corson County, and Mobridge saw golf ball sized hail. The hail broke some windows and damaged the siding on several houses in the Mobridge area.


Record Highs: Record Lows:
Aberdeen: 106 (1947) Aberdeen: 42 (1985)
Kennebec: 112 (1936) Kennebec: 40 (1985)
Mobridge: 104 (1935) Mobridge: 42 (2004)
Pierre: 111 (1936) Pierre: 44 (2004)
Sisseton: 108 (1947) Sisseton: 42 (1903)
Timber Lake: 104 (1935) Timber Lake: 40 (1946)
Watertown: 103 (1947) Watertown: 40 (1982)
Wheaton: 99 (1971) Wheaton: 45 (1982)

Record Precipitation:
Aberdeen: 1.60" (1953)
Kennebec: 1.86" (1923)
Mobridge: 0.99" (2007)
Pierre: 1.72" (1923)
Sisseton: 2.02" (1980)
Timber Lake: 1.80" (1962)
Watertown: 2.05" (2008)
Wheaton: 0.85" (2002)


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