04-29-2026, 11:30 PM
(04-29-2026, 06:00 PM)MyManao Wrote:(04-24-2026, 03:06 PM)Durian Fiend Wrote: What Durgin says..
I have yet to be impressed with Durgin's powers of deduction.. and will add..
Mark Morrisey says the same thing as Durgin.
"...So what about the burning question on everyone’s mind? Is the Big Island really protected from hurricanes by the mountains? Or is that a myth?
“The Hawaiian Islands rarely get hit by dead-on hurricanes,” explains Morrissey. “We have a semi-permanent natural zone of protection consisting of vertical shear. (Officially called the “Tropical Upper Tropospheric Trough,” or TUTT.) Hurricanes can’t survive it. We have had hurricanes hit the Islands (‘Iniki and ‘Iwa, for example), but it’s really very rare — maybe four or five in the last 100 years?
“As for the mountains, they definitely can disrupt the circulation, but the hurricane needs to get close enough for that interaction to occur. It doesn’t happen before they get here.”
Morrissey believes that hurricanes are actually very fragile things.
“They do best (strengthening) when they are in a place where nothing is happening,” he says. “But then they will weaken rapidly, especially when entering a shear zone, which is what happened to Lane. In the case of Lane, it survived longer than I thought it would. But once it moved into the shear zone, bang, it was done for.”
https://www.hawaiiislandmidweek.com/puna-weather/

