NEVASCA EM 1966 NOS ESTADOS UNIDOS DA AMERICA
https://www.weather.gov/fgf/blizzardof66
The Historic Blizzard of March 2-5, 1966
Weather.gov > Grand Forks, ND > The Historic Blizzard of March 2-5, 1966
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One of the most severe blizzards on record to impact the Northern Plains occurred 50 years ago between March 2-5 of 1966. The blizzard was particularly memorable for its long duration, as well as for its very heavy snowfall totals of 20 to 30 inches in some locations and wind gusts exceeding 70 mph at times. Snowfall totals reached as high as 38 inches, with drifts 30 to 40 feet high in some locations.
News accounts vary...but at least 18 reported deaths occurred across the Great Plains states due to the blizzard. At least nine people were killed across North Dakota (5) and Minnesota (4), and at least another 6 (possibly more) people died in South Dakota. A few of the fatalities were from overexertion from shoveling snow, while other deaths occurred as a result of becoming disoriented while out in the treacherous blizzard conditions. In addition, tens of thousands of livestock perished in the storm.
Transportation became impossible, with schools and businesses shut down across the area, and power and telephone service outages which lasted for many days.
The iconic photo of North Dakota DOT employee, Bill Koch (below), standing next to a set of railroad telegraph poles, was taken by fellow ND DOT employee Ernest Feland on 9 March 1966. This photo and many others which were taken by Bill and Ernest in the days following the storm are available in the North Dakota State Historical Society and NOAA/NWS archives.
Meteorological Synopsis
An intense "Colorado Low" weather system lifted into eastern South Dakota early on March 3, 1966, and slowly progressed into central Minnesota on March 4. These type of weather systems are capable of producing very heavy precipitation, as abundant moisture can be transported northward ahead of the strong low pressure systems. With cold enough temperatures, heavy snow and very strong winds often occur to the northwest of the track of the low pressure system, as was the case with this blizzard.
Snow began in southern North Dakota during the morning of March 2, and spread northward into March 3. At Fargo, the visibility remained one quarter mile or less for over 30 consecutive hours from March 3-5, coinciding with strong northerly winds gusting frequently over 40 or 50 mph.
Unlike many of the "killer blizzards" which had previously occurred in the Northern Plains [Schoolhouse Blizzard, 11-12 Jan 1888; Armistice Day Blizzard, 11 Nov 1940; and Ides of March Blizzard, 14-15 Mar 1941], temperatures were relatively mild during much of this blizzard. At Fargo, temperatures held steady in the 20s during the start of the blizzard, falling into the teens during the height of the blizzard, when winds were strongest and visibility lowest. By the time the blizzard was winding down, temperatures had dropped into the single digits.
At Grand Forks, 27.8 inches of snow was measured, with the heaviest snow falling on March 4, when 17.0 inches fell. For Grand Forks, the 17.0 inches on March 4 set a record for most snowfall during one calendar day, while the 27.8 inches for the blizzard as a whole still remains the heaviest event total snowfall on record in Grand Forks.
Finally by later on March 5, the low pressure system began to move away, with winds subsiding, and colder subzero temperatures moving into the region. Below is the surface weather map valid at 12 a.m. on March 4th, 1966.
Snowfall Totals
Additonal Blizzard of 1966 Stories:
For additional stories about the Blizzard of 1966, check out these recent Grand Forks Herald articles...
- Main Article: https://www.grandforksherald.com/news/region/3957953-1966s-deadly-blizzard-was-monster
- Highlights: https://www.grandforksherald.com/news/region/3958101-highlights-1966-blizzard
A comparison of the Blizzard of March 1966 with the Blizzard of January 1996 is contained in the the NWS publcation
"Fargo, North Dakota Climate" https://climate.umn.edu/pdf/fargo_climate.pdf , by Vincent and Nancy Godon.
A summary of the official Storm Data publication regarding this event can be found here:
https://www.weather.gov/fgf/blizzardof66_stormdata
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Atingido por uma tempestade de neve, 1966
Esta foto mostra os efeitos da tempestade de neve e como a neve cobriu tudo subindo a um nível inesperado.
Uma nevasca destrutiva atingiu os Estados Unidos e o lado leste das Montanhas Rochosas em 1966, tirando a vida de quase 200 pessoas. Destes, 31 simplesmente congelaram na neve e morreram. A temperatura caiu para um nível inacreditavelmente baixo e uma forte nevasca arruinou a situação.
Muitas pessoas morreram em acidentes de incêndio durante esses dias. Eles tentaram criar algum calor em suas casas, mas o incêndio tirou suas vidas.
