Major Hurricane Lane to pass south of Hawaii while generating large swells
By Alex Sosnowski, AccuWeather senior meteorologist
August 19, 2018, 5:33:27 AM EDT
In the distant footsteps of Hurricane Hector, Major Hurricane Lane is forecast to take a similar path just south of the Big Island of Hawaii next week.
Hurricane Hector reached Category 4 status but passed well south of Hawaii during early August.
Lane reached Category 3 status, which is a major hurricane, on Friday. The size and orientation of Lane's wind field, as well as exactly how far to the south Lane passes the islands, will determine the extent of impacts.
At this time, the center of Lane is expected to pass about 200 miles south of the southernmost tip of the Big Island at midweek, local time.
"Based on that track, impacts on at least the Big Island will not be much different than that was experienced with Hector two weeks earlier," AccuWeather Hurricane Expert Dan Kottlowski said.
The first impact on the waters surrounding the islands will be large swells spreading westward and northward beginning early next week.
Conditions can become dangerous for ocean vessels south of the islands as well as small craft attempting to navigate the inter-island channels next week.
Surf may become too rough and dangerous for most bathers and boarders along the south- and east-facing beaches of the islands by next week.
Breezy conditions with showers and gusty squalls are most likely on the southern and eastern part of the Big Island, but they may spread to the middle and western islands in the String of Pearls by the middle of next week.
"Lane is likely to maintain major hurricane status for several days," Kottlowski said.
Gradual weakening is expected early next week, but Lane should still be a hurricane when it passes south of Hawaii.
Download the free AccuWeather app for the latest forecast and bulletins on Hurricane Lane.
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Every hurricane, no matter how similar in strength, has some unique characteristics in size and shape. This is due to other weather systems in the nearby region as well as the extent of dry versus moist air and wind shear surrounding the hurricane.
If Lane becomes a compact hurricane and keeps its distance, conditions may not be so rough.
However, if Lane tracks closer to the islands than Hector, then conditions would trend more severe. Likewise, if Lane is more spread out, conditions could get a little worse over the islands, when compared to Hector.
Additional threats from tropical storms and hurricanes are likely into the autumn, due to a developing El Niño.
Because El Niño is a plume of warmer-than-average waters over the tropical Pacific Ocean, the warm water just south of Hawaii can sustain more hurricanes than average over the eastern and central Pacific and cause them to be stronger in nature.
On average, there are approximately five tropical systems per year over the central Pacific basin.
There is a chance that Lane may cross the international date line later in August, but the chance of the system being a hurricane at that time is remote.
Hector survived to cross the date line on Aug. 13 but did so as a tropical storm and not a hurricane. When a hurricane crosses the date line into the western Pacific, it becomes a typhoon.
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