This Day in National/World Weather History ...
 29 August 1965 → Mount Washington, NH reported 2.5 inches of snow -- a national record for the month of August.
 29 August 1994Hurricane John, also known as Typhoon John, lasted 30 days as it affected both the northeast and northwest Pacific basins making it the longest lasting tropical cyclone. It formed in the northeast Pacific, reached hurricane force there, moved across the dateline and was renamed Typhoon John, and then finally recurved back across the dateline and renamed Hurricane John again.
 29 August 2005 → Hurricane Katrina, a strong Category 3 storm with 125 mph winds and a high storm surge, came ashore along the Louisiana/Mississippi border. The massive storm brought 12 hours of hurricane force winds and up to a 28 foot storm surge to the Mississippi coast. New Orleans was inundated.

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May 21, 1977:

Five tornadoes were seen by observers south of Clear Lake. One was five miles south of town moving northeast. Another was four miles south and one mile west of Clear Lake. Both destroyed trees and some small buildings. Three other tornadoes were sighted about two miles south of town. These touched down only momentarily with no damage occurring. Two tornadoes were seen in Southern Codington County. One was seen at Grover and the other was five miles south of Watertown. No damage was reported. A tornado was on the ground in the vicinity of Revillo. A few barns and some out building were damaged.

May 21, 1992:

A severe thunderstorm moved over northwestern Edmunds County causing high winds and penny size hail. In Bowdle there was considerable wind damage. Tree limbs in excess of five inches in diameter were broken off and fell on a car. Other tree branches went through the roof of a home. Two pickup trucks were rolled on their side. Three miles ENE of Bowdle a garage was moved 20 feet off its foundation and was stopped by a large tractor.


Record Highs: Record Lows:
Aberdeen: 94 (1925) Aberdeen: 25 (1895)
Kennebec: 99 (1925) Kennebec: 21 (1931)
Mobridge: 94 (1964) Mobridge: 23 (1931)
Pierre: 93 (1992) Pierre: 32 (1968)
Sisseton: 96 (1964) Sisseton: 32 (1963)
Timber Lake: 92 (1955) Timber Lake: 20 (1931)
Watertown: 92 (1964) Watertown: 28 (1928)
Wheaton: 98 (1964) Wheaton: 31 (1963)

Record Precipitation:
Aberdeen: 1.48" (1898)
Kennebec: 2.15" (1977)
Mobridge: 1.65" (1962)
Pierre: 1.01" (1899)
Sisseton: 3.84" (1965)
Timber Lake: 1.07" (1962)
Watertown: 1.70" (1909)
Wheaton: 2.20" (1937)


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