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3 CAT 4 hurricanes in Pacific Ocean

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3 CAT 4 hurricanes in Pacific Ocean

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Old 1st Sep 2015, 04:03
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3 CAT 4 hurricanes in Pacific Ocean

First time ever, 3 CAT 4 Hurricane in Pacific Ocean near HI....looks like perhaps even a 4th forming...



Safe flying to all...

https://pbs.twimg.com/tweet_video/CNmru6zVAAIZo49.mp4
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Old 1st Sep 2015, 07:43
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For sure totally unrelated to the stupid idea of global warming...
Some interesting data on ocean temperature development...
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Old 1st Sep 2015, 09:20
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I'm guessing these will need a wide berth. Wondering which major airways will be affected ... and who will be trying to thread the needle


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Old 1st Sep 2015, 09:36
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There is basically no difference between a hurricane, a typhoon, and a cyclone. They are all different names for the same kind of intense low pressure system.

The diagram below depicts how different regions refer to tropical cyclones (winds of 70+mph) ...



It is not uncommon for a system to cross a given lat/long and be renamed, as it passes from one agency to another (e.g. Typhoon Alisa becomes Tropical Cyclone Alisa as responsibility passes from Japanese Meteorological Agency to the Australian Bureau of Meteorology)

As these storms in the Eastern Pacific cross 140°W into the Central Pacific, they become the responsibility of the Central Pacific Hurricane Center in Honolulu, which governs tropical storms in the northern hemi between 140°W and the International Date Line (180°W).

Last edited by unworry; 1st Sep 2015 at 09:53.
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Old 1st Sep 2015, 12:17
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(e.g. Typhoon Alisa becomes Tropical Cyclone Alisa as responsibility passes from Japanese Meteorological Agency to the Australian Bureau of Meteorology)
The Japan Meteorological Agency calles the according website "Tropical Cyclone Information" with the address http://www.jma.go.jp/en/typh/ ...
So even they are confused
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Old 1st Sep 2015, 19:53
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I've flown over tropical storms/cyclones in the Arabian Sea a number of times without much worries. Just some scattered TS at level, but the main weather was well below us.
Not familiar with the Pacific types. Avoid at all cost, or continue with caution?
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Old 1st Sep 2015, 19:57
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Not familiar with the Pacific types. Avoid at all cost, or continue with caution?
As it says FREQ CB tops FL530 on the current SIG WX chart, I, for one, would give it a wide berth...
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Old 1st Sep 2015, 21:16
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So even they are confused
The word "cyclone" has a couple of different meanings. The first meaning is as depicted in unworry's picture above.

But the term "cyclone" in meteorology also means any closed, rotating low-pressure system. So both Hurricanes and Typhoons are types of cyclones. Tornados and even dust devils are also type of cyclones.

And yes, somewhat confusingly, a Cyclone is also a type of cyclone.

Since cyclone means a closed low-pressure system, an anti-cyclone is any closed high-pressure system.

It's good for pilots to be familiar with this second definition of cyclone because sometimes we will see the term depicted in meteorology charts, reports, etc. E.g., a cyclone might be forming over Colorado, or an anti-cyclone might persist over Germany.

More: some definitions of Typhoons, Hurricanes and Cyclones.
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Old 1st Sep 2015, 23:48
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Yesterday Cape Verde islands got hit by a hurricane. First time in over a hundred years I heard them report
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Old 2nd Sep 2015, 06:24
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Originally Posted by Gooneyone
Yesterday Cape Verde islands got hit by a hurricane. First time in over a hundred years I heard them report
In the vicinity of Cape Verde, Atlantic hurricanes travel east to west, and, since islands are fairly close to the coast of Africa, tropical storms rarely have time to reach hurricane status before they clear the islands.

It still happens from time to time. Tropical Storm Danielle passed within 200 miles from the islands in 2004. Jeanne passed even closer in 1998 at Category 1 strength. Yesterday's hurricane was unique because it went straight through the islands.
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Old 2nd Sep 2015, 06:33
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Yesterday Cape Verde islands got hit by a hurricane. First time in over a hundred years I heard them report
Folks,
That's interesting, I wonder what the tropical revolving thing was, that got me stuck there in the late 1970's. No aircraft in or out for about four/five days. If it walks like a duck, quacks like a duck ------.
I still have a nameboard from a sizable fishing boat that was smashed to firewood just near the hotel. My one souvenir of Portugal's first penal colony, a salt mine.
Tootle pip!!
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Old 2nd Sep 2015, 07:26
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Regardless of the reasons for the hurricanes/cyclones/typhoons...they are there and it looks like a wild ride.

Safe travels.
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Old 2nd Sep 2015, 08:03
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Storm Over Cape Verde.

That would be tropical Storm "Fred"! National Hurricane Center
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Old 2nd Sep 2015, 13:18
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The word word Typhoon originates from the Chinese meaning 'big wind'.
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Old 2nd Sep 2015, 16:41
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The increase in activity is probably due to...

"Current El Nino climate event 'among the strongest'"

Current El Nino climate event 'among the strongest' - BBC News
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Old 2nd Sep 2015, 19:49
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Originally Posted by dsc810
The word word Typhoon originates from the Chinese meaning 'big wind'.
Originating after the emperor had too many szechuan (sichaun?) peppers on his spicy pork at the banquet ...
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Old 2nd Sep 2015, 23:36
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Central Pacific Hurricane Center in Honolulu, which governs tropical storms in the northern hemi
Amusing word choice!
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Old 2nd Sep 2015, 23:43
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(from Google)



Interestingly, one of the 3 cyclones above -- now called Typhoon Kilo -- may become one of the longest living tropical cyclones:



http://www.weather.com/storms/hurric...ic-hawaii-2015
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Old 3rd Sep 2015, 04:10
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I have heard tales of brave crews overflying monsters like these and looking down into the eye, with little thought of engine failure drift down altitudes nor of depressurisation descents.
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Old 3rd Sep 2015, 04:16
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Originally Posted by vapilot2004
Amusing word choice!
governs ... as in "presides over", not "controls"
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