Everything about Hurricane Dot 1959 totally explained
Hurricane Dot was a hurricane during August of the
1959 Pacific hurricane season that made a rare landfall in
Hawaii, and one of only five
tropical cyclones since 1950 to have caused serious damage to the islands. The storm's formation is unclear, owing to the poor technology of the time, but reports suggest that Dot could have formed on
July 24. Dot itself was identified only on
August 1.
Dot tracked west-northwestward, eventually making landfall on the island of
Kauai on
August 6, becoming the first hurricane to make landfall in Hawaii. It also brought 2.66
inches (67.5
mm) of rainfall to
Oahu, far more than the normal monthly average of 0.80 inches (20 mm).
Storm history
On
July 24,
1959, a ship, the SS
Pacificus, reported 35-knot (40 mph, 65 km/h)surface winds about 1000 miles (1600 km) west of Lower California (what is now known as the
Baja California Peninsula), prompting the release of a tropical storm warning. Six hours later, the same ship reported 55-knot winds and the storm was then forecasted to move west-northwest at 12 knots. However, there were no further reports until the last warning released on
July 27 at 0000
UTC, and advisories were discontinued due to a lack of data.
Tropical Storm Dot was discovered on
August 1 after an unidentified ship reported surface winds of 60 knots at 15.7°N 141.2°W. This would be around where the unnamed storm would have been had it tracked west-southwestward at 6 knots, contrary to its earlier advisories. As there was no data available from the
Pacificus's second report to when Dot was identified, it's impossible to tell if Dot was the same storm, or if the earlier unnamed storm had dissipated and Dot was a new system
.
Dot tracked west-northwest, and on
August 5 passed within 90 miles of
South Point as a
Category 4 hurricane. It then turned northwest, making landfall on the island of
Kauai as a Category 1 hurricane on the night of
August 6. It then continued further out to sea, with the last advisory being issued on
August 8 with 25 knot winds, indicating possible dissipation or extratropical changes.
Throughout its path, Dot maintained an unusually large eye diameter of 35 – 40 miles, but the eye never grew in size in the direction of the hurricane's movement, even when close to dissipation.
Impact
Dot caused storm damage to the islands of
Hawaii,
Oahu and
Kauai, where the storm damage was the most severe. On Hawaii and Oahu, damage was limited to flood and wave damage. However, on Kauai, many houses had their roofs blown off, while trees were uprooted. Cars were badly damaged by flying objects, and power and telephone lines were knocked down. Flood alerts were raised, and Kauai was declared a disaster zone.
While damage on the Big Island and Oahu were estimated to be not more than $150,000 ($950,000 in 2005
USD), Kauai suffered damage to agriculture estimated to be between $5.5 – $6 million ($35 – $40 million in 2005 USD). Flooding cost about $200,000 ($1.3 million in 2005 USD) in damage, while wind damage wasn't more than $100,000 ($650,000 in 2005 USD). Despite the ferocity of the storm, no deaths or serious injuries due to Dot were reported.
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