Hurricane season in the Pacific vs. Atlantic?

nkereina

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Just curious how hurricane season in the Pacific differs from Atlantic, specifically with its impact to Hawaii. We'll be in Hawaii for two weeks at the end of September, visiting Oahu, Maui and Kauai. I know hurricane season in the Pacific runs through November, but when generally is peak season? I know in the Atlantic, it's late August/September timeframe. How does it differ?
 
Here's some good reading for you. Cyclones/Hurricanes in the northern hemisphere originate on the equator and are driven westward and north. In the Atlantic, North America funnels the warm waters along the East Coast and into the Mississippi delta. In the mid-Pacific, there aren't any geographic features to do the same. Because Hawaii is fairly isolated in the Pacific ocean, very few named storms make it to the Islands. Further, Oahu is ideally located within the island chain. You can observe from the history plot that Mauna Kea and Mauna Loa, as well as Haleakala, take a bite out of most storms that are driven to the island chain. If, for some reason, they avoid the Big Island, they can swing back towards the Islands, but usually not until they track to Kauai, missing Oahu.

In short, you people who go to FL in the summer are crazy. :)
http://www.prh.noaa.gov/cphc/pages/climatology.php
 
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Hawaii is a very tiny speck in the ocean that is very seldom effected by hurricanes. One makes landfall maybe every 10 years.
 
I guess I'm using the term "hurricane" loosely. I'm interested in tropical storms too - how often do those hit? Apparently last week the Big Island and Kauai were affected by a tropical storm just wondering if that was a rarity or something that's relatively common throughout late summer and September?
 

We were in Oahu and Maui and left Maui a day and a half early to avoid tropical storm Darby. There were 2 more tropical storms in the area before Darby during our time in Hawaii- Blas and Celia-- we were on Oahu at Aulani during those times. From everything we heard, typically the tropical storms hit cooler water, weaken and then their path spins off away from Hawaii. I don't know that there was even rain from Blas, and all we got from Celia was some mostly light rain showers (with a couple of short downpours thrown in) off and on for a day at Aulani. . We didn't mind the rain at all by the pool and on the beach as it cooled things off and we were wet anyway- and there were plenty of breaks with sunshine in between the little showers- but it did move the characters from their outdoor locations for part of the day and unfortunately resulted in the Starlight Hui show being cancelled that night. From what we heard, this was what typically happens with tropical storms and the extent of what you should normally have to deal with. Darby was the first time a Tropical Storm actually directly hit Hawaii in 2 years. It apparently was also kind of a surprise that it hit Oahu after Hawaii. When we were there after they were pretty sure it was not going to turn as they usually do, the newscasters were all saying it was going to hit Hawaii and Maui hard and probably not have much if any impact on Oahu. We were gone before it hit, but from what I have found on the internet, it looks like it hit Hawaii and Oahu and just skirted Maui. We talked to a guy who had lived on Maui for years, and he said that usually if tropical storms do hit, they hit Hawaii (big island), then slow down after they hit land/mountains there and barely have an impact on Maui or the other islands. The one thing that did happen with Celia while we were at Oahu and in the days when Darby was approaching while we were in Maui was that the currents at the beach get significantly stronger, so you have to be really careful with that.
 
I guess I'm using the term "hurricane" loosely. I'm interested in tropical storms too - how often do those hit? Apparently last week the Big Island and Kauai were affected by a tropical storm just wondering if that was a rarity or something that's relatively common throughout late summer and September?
It's the same. Tropical storms vary in intensity (depressions to cyclones). The same weather patterns apply in that most don't hit Oahu very often.
 
I guess I'm using the term "hurricane" loosely. I'm interested in tropical storms too - how often do those hit? Apparently last week the Big Island and Kauai were affected by a tropical storm just wondering if that was a rarity or something that's relatively common throughout late summer and September?

Hurricane is not a term to be used loosely, it is a very specific event.

Tropical storms very seldom hit Hawaii either because HI is such a small speck in the ocean.
 
Hurricane is not a term to be used loosely, it is a very specific event.

Tropical storms very seldom hit Hawaii either because HI is such a small speck in the ocean.

I understand - I was just referring to weather events that can affect Hawaii, which seems to be hurricanes/tropical storms.

I keep hearing they rarely impact Hawaii, so I'm curious as to whether the recent TS Darby was that rare event or if storms like that creep up a couple times a season in the vicinity. In Orlando, I know hurricanes/TS rarely make landfall but the fallout from one nearby can bring lots of rain and wind to the area. I know this can happen once or twice a summer there, so its relatively common. Is this less of an issue in Hawaii?
 
A few named storms each season will make the news but that kind of rain is a rarity. HI rain is nothing like FL rain but we do have micro climates that make it a constant occurrence. The standard weather report is "70-80 degrees, mostly sunny with windward and mauka showers." If a little rain hits you while you're on the island, wait it out for 5 min and it will pass.
 
A few named storms each season will make the news but that kind of rain is a rarity. HI rain is nothing like FL rain but we do have micro climates that make it a constant occurrence. The standard weather report is "70-80 degrees, mostly sunny with windward and mauka showers." If a little rain hits you while you're on the island, wait it out for 5 min and it will pass.

Just one of many reason why I love Hawaii!
 
I understand - I was just referring to weather events that can affect Hawaii, which seems to be hurricanes/tropical storms.

I keep hearing they rarely impact Hawaii, so I'm curious as to whether the recent TS Darby was that rare event or if storms like that creep up a couple times a season in the vicinity. In Orlando, I know hurricanes/TS rarely make landfall but the fallout from one nearby can bring lots of rain and wind to the area. I know this can happen once or twice a summer there, so its relatively common. Is this less of an issue in Hawaii?

They rarely hit "Hawaii", but even then Hawaii is a very long entity with six major islands so a tropical storm can pass the Big Island and drop lots of rain on it and Kauai gets nothing or vice versa.

It isn't like FL where you are usually guaranteed a couple of TS every season.
 















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