Hurricane Central
Hawaii Threatened By Back-to-Back Tropical Cyclones: Iselle, Then Julio
By Jon Erdman
Published: Aug 7, 2014, 9:23 AM EDT
weather.com
Iselle Looms Offshore
Tropical cyclones directly impacting the Hawaiian Islands are not a typical occurrence, so you may ask how rare is it for back-to-back tropical cyclones to directly impact our 50th state?
(MORE: Hawaii Hurricane History)
Infrared Satellite: Iselle and Julio
That happened in 1982, when what had become Tropical Depression Daniel on July 22 was followed by Tropical Storm Gilma, which brushed the southern tip of the Big Island on Aug. 1. Incidentally, later that season, Hurricane Iwa tracked just west of Kauai in late November and caused an estimated at $234 million in damage.
Roth says a pair of tropical cyclones directly affecting Hawaii in just two to three days' time "is unprecedented in the satellite era."
That's not to say consecutive Hawaiian tropical cyclones with only peripheral effects are as unusual. Daniel, Emilia and Fabio each passed near the islands in a 10-day stretch from July 14-24, 1994, according to hurricane chaser Josh Morgerman. In that case, both Daniel and Fabio had become remnants just before reaching the longitude of the Big Island, while Emilia's center passed south of the island chain.
As of early August, the eastern Pacific had already spawned 10 named storms, including three Category 4 hurricanes. On Aug. 4, Iselle became the season's third Category 4 eastern Pacific hurricane.
By mid June, the eastern Pacific season had gotten off to a record start with two Category 4 hurricanes.
MORE ON WEATHER.COM: Hurricane Iniki Hits Hawaii (1992)
NOAA
Satellite image of Hurricane Iniki making landfall over tbe island Kauai on September 11, 1992 at 1:58 p.m. HST. (Credit: NOAA)
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http://www.weather.com/news/weather-hurricanes/hawaii-iselle-julio-back-back-unusual-20140805
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