NOAA’s Central Pacific Hurricane Center is predicting an El
Nino this summer, and that means a much higher chance of hurricanes in our part
of the Pacific.
And we’re due. More on that later.
(Image: This is a satellite image of the eastern Pacific
from today, May 27. The storm system with the red X shows strong signs of
developing into a more powerful storm. Credit: NOAA.)
This year, the NOAA numbers make hurricanes a statistical
slam dunk. Nearly 20-1 odds that we’ll see big storms before December.
That’s not a guarantee, but the odds are looking spookier for
hurricanes than they have in a very long time.
The part of NOAA’s package of statistics that is most
concerning is not so much that we are likely to have a more active hurricane
season. They predict that in any El Nino year.
What’s concerning this year is that there’s only a 5 percent
chance of a less-than active hurricane season. And a 95 percent chance of a
normal to higher season. That’s weighted strongly (70% to 25%) in favor of more
than normal.
Although the average year sees 4 to 5 tropical depressions,
tropical storms and hurricanes in our part of the ocean, there have been years
when there have been virtually none. And we’ve been quiet for what seems like a
very long time.
The last time the state took a direct hit was Hurricane
Iniki in 1992—23 years ago.
Before satellites, it was hard to identify major storms in
the Pacific unless a ship ran into one, or it hit an island. But in terms of storms that have caused damage, there were
Nina in 1957, Dot in 1959, Iwa in 1982, Estelle in 1986, Iniki in 1992.
That’s five big storms in 35 years, or one every seven years
on average.
And the longest time between them was Dot to Iwa, 23 years.
Same as the time from Iniki to 2015.
This may be the year to pay attention. Says NOAA:
“This outlook is based upon the expectation of El Niño continuing
and possibly strengthening as the hurricane season progresses.
“El Niño decreases the vertical wind shear over the tropical central Pacific, favoring the development of more and
stronger tropical cyclones.
“El Niño also favors more westward tracking storms from the
eastern Pacific into the central Pacific.
“This combination typically leads to an above-normal Central
Pacific hurricane season.”
The Central Pacific Hurricane Center is careful to say it can’t guarantee one or
more of those storms will actually hit the Islands, but it does encourage
families to sign up for emailed weather alerts, to sit down and talk about what
they’ll do in the event of a storm, and to put together a hurricane kit.
If you have a phone book, there are instructions in the
front pages. If not find hurricane preparedness tips online.
You can join NOAA’s central Pacific hurricane page on Facebook
.
Oh, and while the hurricane season doesn’t start until June
1, there is already a weather system headed this way. See the image above.
It’s still off Mexico,
but has an 80 percent chance of developing into a tropical depression in the
next two days, and 90 percent in the next five days.
© Jan TenBruggencate 2015
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