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Hurricane Lane impacts Hawaii


NJwx85
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2 hours ago, NJwx85 said:

It’s called vertical wind shear, not just moderate shear, but borderline strong.

This isn’t that unusual at all. Especially when higher terrain comes into play. We’ve seen this before as storms interact with Hispanolia and Cuba. No doubt the higher terrain on the big island accelerated the process.

Things are slowly coming back to normal here. Most of the resort services are reopening today and we’re hopeful that the rain stays on the Windward side allowing us to salvage the afternoon at the pool. Right now it’s cloudy, but it clearly rained some overnight as the ground and trees are wet. The wind has decreased to a stiff breeze and the only damage I’ve seen has been to palm trees. 

The extreme rainfall on the big island is the main story, and Maui and surrounding islands still received impacts. As far as Oahu is concerned, the impacts here have been minimal and many people are feeling as though this was a huge bust. 

Glad everything worked out. I got ripped for saying this would be palm fronds down and Isolated major flooding ...

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18 minutes ago, LongBeachSurfFreak said:

Glad everything worked out. I got ripped for saying this would be palm fronds down and Isolated major flooding ...

I wouldn’t exactly call what’s occurring on the big island isolated. 

Maui got smacked pretty hard too, and they had a raging wildfire in the resort area yesterday fueled by the high winds.

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1 hour ago, NJwx85 said:

I wouldn’t exactly call what’s occurring on the big island isolated. 

Maui got smacked pretty hard too, and they had a raging wildfire in the resort area yesterday fueled by the high winds.

Maui has a lot of wildfires on the west Maui mountains. Usually they aren’t in populated areas like the one is Lahaina was. Besides some mudslides on road to Hana, Maui got brushed. The big island took the brunt of the rainfall from Lane, as winds never materialized for the warned areas thankfully.

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15 hours ago, uofmiami said:

Maui has a lot of wildfires on the west Maui mountains. Usually they aren’t in populated areas like the one is Lahaina was. Besides some mudslides on road to Hana, Maui got brushed. The big island took the brunt of the rainfall from Lane, as winds never materialized for the warned areas thankfully.

The flooding that did occur happened for the usual suspects. In the windward upslope rain forests. Since those areas are incredibly wet to begin with they tend to be sparsely populated. You can go from an area that sees rain 300+ days a year to an area that sees rain a few days a year in a relatively quick drive in Hawaii. 

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NOHW40 PHFO 261459
PNSHFO
HIZ001>028-270300-

Public Information Statement
National Weather Service Honolulu HI
459 AM HST Sun Aug 26 2018

...EXTREME RAINFALL AMOUNTS FROM LANE OVER THE BIG ISLAND...

Rain bands associated with Lane have produced torrential rainfall
over the Big Island's slopes from Hawi on the north side of the 
island to Naalehu on the south side. Significant flash flooding
has occurred in multiple areas across the northeast and east 
facing slopes of the island. Several evacuations occurred, with
water rescues taking place at Kaiulani Street in Hilo and also 
in the town of Keaau. As usual during heavy rainfall events, the
Bayfront area was inundated by the overflow of Alenaio Stream.
Highway 19 was closed in multiple locations due to landslides
and flooding. Akoni Pule Highway was closed by a landslide near
Halawa Gulch. Highway 130 was closed by flooding south of Keaau.
Numerous other roads were also closed by flooding.

Heavy rain and flash flooding also affected windward and southeast
sections of Maui, especially along the Hana Highway.

Please refer to the Local Storm Report Summary for more specifics
on individual reports throughout the event at: 

www.prh.noaa.gov/hnl/pages/lsr.php

Mountain View has measured 51.53 inches of rain for the period 
running from 12 noon HST August 22 through 4 AM HST August 26.
This is a preliminary total subject to final quality control,
but this is currently the third highest storm total rainfall
from a tropical cyclone in the United States since 1950. The
highest total is 60.58 inches, measured at Nederland, Texas,
during Hurricane Harvey in 2017. The second highest total, 
and the highest tropical cyclone storm total rainfall in Hawaii
is 52.00 inches, measured at Kanalohuluhulu Ranger Station, 
during Hurricane Hiki in 1950. 

Hilo Airport measured 36.76 inches of rain for the four day period
running from 12 midnight HST August 22 through 1159 PM HST August
25. This is the wettest four day period ever observed at Hilo, 
with records dating back to 1949. Hilo also measured 15.00 inches 
of rain on August 24, which was the fifth wettest calendar day on 
record.

Here are some of the notable rainfall totals from the ongoing
event, covering the period from noon HST August 22 through 
4 AM HST August 26. All values are in inches, and are preliminary 
pending final quality control.

Island of Hawaii
Mountain View              : 51.53
Waiakea Uka                : 49.10
Piihonua                   : 47.48 
Saddle Quarry (USGS)       : 47.20 
Waiakea Experiment Station : 43.99
Pahoa                      : 37.28
Glenwood                   : 35.40 
Kulani NWR                 : 28.52 
Keaumo                     : 24.35 
Kawainui Stream (USGS)     : 16.03 
Puu Mali                   : 13.70

Island of Maui
West Wailuaiki (USGS)      : 24.71
Puu Kukui (USGS)           : 14.96 
Haiku                      : 10.34 
Hana Airport               :  8.14

$$

Jacobson
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3 hours ago, LongBeachSurfFreak said:

The flooding that did occur happened for the usual suspects. In the windward upslope rain forests. Since those areas are incredibly wet to begin with they tend to be sparsely populated. You can go from an area that sees rain 300+ days a year to an area that sees rain a few days a year in a relatively quick drive in Hawaii. 

Yes the Leeward side of Maui is dry and the Windward side is a rainforest. Two years ago we traveled the road to Hana and it’s amazing how many different micro climates you encounter along the way. When traveling back West along the volcanic ridge it’s amazing to look down from a few thousand feet above sea level and see nothing but miles and miles of volcanic rock between yourself and the ocean.  

As it turns out, several locations there saw double digit rainfall, and it looks like Oahu was spared the worst. Here in Ko Olina the sky’s have been mostly cloudy with breaks of sun and a few sprinkles. Out towards Pearl it’s been raining a lot more. Diamond head has been barely visible from portions of H1, however the downtown area has been mostly dry as well.

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Some radar-based rain estimation. Of course, none of these is totally perfect and a couple of the main radar sites have a large amount of radar blockage due to terrain. I have used a 36-inch color table for some of these, and a 10-inch color table for other ones.

VJog7U1.png

 

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Public Information Statement
National Weather Service Honolulu HI
305 PM HST Mon Aug 27 2018

...LANE POSSIBLY BREAKS HAWAII TROPICAL CYCLONE RAINFALL 
RECORD...

The Mountain View gage has measured 52.02 inches of rain for the 
period from 8 AM HST August 22 when the outer rain bands started 
impacting the Big Island through 8 AM HST August 26 after the 
trailing rain band passed west of South Point. An unverified 
private weather station also reported 58.80 inches during this 
same time span. We will attempt to validate this private weather 
station report. Both totals indicate that Hurricane Lane has 
broken the Hawaii tropical cyclone storm total rainfall record, 
pending verification of the data. The previous record was 52.00 
inches, measured at Kanalohuluhulu Ranger Station, during 
Hurricane Hiki in 1950. The Hurricane Lane total would also make 
it the second highest storm total rainfall from a tropical cyclone
in the United States since 1950. The highest total is 60.58 
inches, measured at Nederland, Texas, during Hurricane Harvey in 
2017.

Here are some of the notable rainfall totals from the ongoing 
event, covering the period from 8 AM HST August 22 through 8 AM 
HST August 26. All values are in inches, and are preliminary 
pending final quality control.

Island of Hawaii
Mountain View              : 52.02
Waiakea Uka                : 49.48
Saddle Quarry (USGS)       : 48.52
Piihonua                   : 48.13
Waiakea Experiment Station : 47.37
Pahoa                      : 38.09
Glenwood                   : 35.83
Kulani NWR                 : 28.71
Keaumo                     : 24.65
Kawainui Stream (USGS)     : 16.70
Puu Mali                   : 13.70

Island of Maui
West Wailuaiki (USGS)      : 25.58
Puu Kukui (USGS)           : 17.48
Hana Airport               : 10.57
Haiku                      : 10.55


$$

Kodama
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