Hurricane Beth

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Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
Disc Plain black.svg Tropical cyclone
Solid black.svg Subtropical cyclone
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On August 9, a low pressure system in the upper levels of the atmosphere formed off the east coast of Florida. It became a surface low by the next day and acquired the characteristics of a tropical cyclone; it is officially stated to have become a tropical depression at 1200 UTC on August 10. The depression slowly advanced northeastward within a relatively cold environment, and as such, it did not intensify for several days. The system turned more toward the east as it approached the coast of North Carolina, at which time its structure became conducive to further development. On August 14, the depression was declared a tropical storm and assigned the name Beth following recent data from a reconnaissance aircraft. [1] [2]

Several hundred miles off the U.S. East Coast, Beth accelerated somewhat – reaching forward speeds of up to 19 mph (31 km/h) as it resumed a northeastward course. Its minimum central pressure deepened to 990 millibars (29  inHg ), and correspondingly, maximum sustained winds increased. In response, the cyclone was recognized as a Category 1 hurricane. It continued to mature as it passed east of Cape Cod, achieving peak winds of 85 mph (137 km/h) and a pressure of 977 mb (28.9 inHg). Subsequently, the hurricane weakened slightly while nearing Nova Scotia. On August 16, it made landfall near Copper Lake before crossing Cape Breton Island. Shortly thereafter, Beth was swept up by a nearby cold front and transitioned into an extratropical cyclone. [1] [2]

Preparations and impact

Weather map of Beth on August 15 Beth 1971-08-15 weather map.jpg
Weather map of Beth on August 15

In advance of Hurricane Beth, hurricane warnings were issued for coastal and marine areas of Nova Scotia and Newfoundland. In Halifax, bus service was disrupted by the storm, and in Antigonish, business owners closed their stores and filled sandbags to prepare. [3]

The hurricane left extensive damage in its wake, especially to crops and infrastructure. [4] Halifax International Airport reported 10.49 in (266 mm) of rainfall over 30 hours. The heavy precipitation throughout the country triggered severe flooding, stranding hundreds of travelers. The mayor of Dartmouth reported that the area was a "disaster", as 500 homes were reportedly inundated. Antigonish also experienced significant flooding; waters there approached the top of parking meters. [5] Impacted crops in the region included cereal grain, corn, and tobacco, whose inundated fields resembled vast lakes. [6]

Transport suffered severely: several main roads, including part of the Trans-Canada Highway and Nova Scotia Highway 102, in northeastern Nova Scotia received flood damage and were temporarily blocked off. [7] Additionally, the rising waters washed out several bridges in the region and swept away automobiles. Railways were covered by water, forcing trains to suspend their operation. [3] Drinking water in Dartmouth was contaminated due to excessive runoff into Lake Antigonish, [4] and a trailer park in Antigonish flooded, prompting 600 residents to evacuate. [8] Overall monetary damage from Beth is estimated at between $3.5 million and US$5.1 million. [4] One person was indirectly killed by the hurricane in a traffic accident induced by heavy rain. [5]

See also

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<span class="mw-page-title-main">1924 Atlantic hurricane season</span> Hurricane season in the Atlantic Ocean

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<span class="mw-page-title-main">Hurricane Carol (1953)</span> Category 5 Atlantic hurricane in 1953

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<span class="mw-page-title-main">1940 Nova Scotia hurricane</span> Category 2 Atlantic hurricane in 1940

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References

  1. 1 2 Hurricane Specialists Unit (2009). "Easy to Read HURDAT 1851–2008". National Hurricane Center. Retrieved November 1, 2010.
  2. 1 2 R. H. Simpson; John R. Hope (April 1972). "Atlantic Hurricane Season of 1971" (PDF). Monthly Weather Review . American Meteorological Society. 100 (4): 256–267. Bibcode:1972MWRv..100..256S. doi:10.1175/1520-0493(1972)100<0256:AHSO>2.3.CO;2. S2CID   119771736 . Retrieved November 1, 2010.
  3. 1 2 The Canadian Press (August 16, 1971). "Nova Scotia awash as rain, storms hit". The Windsor Star. Retrieved November 1, 2010.
  4. 1 2 3 Natural Resources Canada. "Major Hurricanes". The Atlas of Canada. Archived from the original on June 2, 2011. Retrieved November 1, 2010.
  5. 1 2 The Associated Press (August 17, 1971). "Hurricane Beth Pours Rain on Nova Scotia; One Killed". The Spokesman-Review. Retrieved November 1, 2010.
  6. "1971 – Beth". Environment Canada. Retrieved February 14, 2011.
  7. The Associated Press (August 17, 1971). "Hurricane Beth Drenches Halifax". Bangor Daily News. Retrieved November 1, 2010.
  8. The Associated Press (August 17, 1971). "Hurricane Blasts Nova Scotia; Flood Damage Is 'Disastrous'". Sarasota Herald-Tribune. Retrieved November 1, 2010.
Hurricane Beth
BethAug1519711727UTCESSA9.gif
Satellite image of Beth on August 12