Hawaii, 2024

Tropical Storm and Flash Flood in Hawaii, August 24 to 26, 2024

August 24 to 26, 2024 · NWS HFO · 8 events in 6 counties and zones

Hurricane Hone, which formed in the Central Pacific, tracked towards the Hawaiian islands and passed by just south of the Big Island. Hurricane Hone's outer rain bands brought flooding to portions of the Big Island and the close proximity of the center of the storm brought widespread tropical storm force winds with pockets of power outages over the Big Island and Maui.

Where it happened

Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$8.0 million
Crop damage
$10,000
Events
8

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS HFO wrote it up.

Hurricane Hone, which formed in the Central Pacific, tracked towards the Hawaiian islands and passed by just south of the Big Island. Hurricane Hone's outer rain bands brought flooding to portions of the Big Island and the close proximity of the center of the storm brought widespread tropical storm force winds with pockets of power outages over the Big Island and Maui. Thousands of customers reportedly lost power and utility poles were damaged.

The radar

The South Shore radar (PHWA), 57 km away, was scanning. The volume nearest the first event began at 09:57 UTC.

Open the radar archive at this moment

Event by event

3 tropical storm, 2 high wind, 1 high surf, 1 flood, 1 flash flood. Local standard time, as filed.

High Surf, Big Island East

When
August 24, 6:54 AM HST to August 25, 6:00 AM HST
Where
Big Island East forecast zone
Reported by
NWS Employee
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

Large swell from Hurricane Hone generated fourteen to eighteen foot surf for east facing shores of the Big Island and Maui.

Tropical Storm, Big Island Interior

When
August 24, 7:00 PM HST to 8:00 PM HST
Where
Big Island Interior forecast zone
Reported by
Park/Forest Service
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

A large tree fell and completely blocked traffic just above the Mana Road on the Maunakea Access road.

Flood, Hawaii

When
August 25, 12:00 AM HST to August 26, 12:00 AM HST
Where
Hawaii County, 11.04 mi SW of Papaaloa to 2.1 mi SW of Naalehu
Cause
Heavy Rain / Tropical System
Property damage
$5.0 million
Crop damage
$10,000
Reported by
Newspaper
Coordinates
19.841, -155.320

As quoted in the Star-Advertiser, the Hawaii County Civil Defense Administrator reported the county had received thirty eight damage claims from Kohala to Kau and that, out of the thirty eight damage reports, eighteen had been verified. Nine of these damage reports were major, meaning they may be uninhabitable. One of these properties included a home used as a bed and breakfast experienced extensive flooding with massive mud, boulder, and debris buildup in the home.

Tropical Storm, Big Island East

When
August 25, 12:00 AM HST to 6:00 AM HST
Where
Big Island East forecast zone
Reported by
Emergency Manager
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

Kaloli Dr and Huina Rd were closed due to downed trees.

Flash Flood, Hawaii

When
August 25, 12:25 AM HST to August 26, 12:30 AM HST
Where
Hawaii County, 10.95 mi WNW of Mountain View to 4.33 mi WSW of Honaunau
Cause
Heavy Rain / Tropical System
Property damage
$3.0 million
Reported by
Emergency Manager
Coordinates
19.621, -155.279

Heavy rain from the outer bands of Hurricane Hone caused flooding which closed several roads over the southeast portion of the Big Island. In the Kau District, Highway 11 was closed at Kawa Flats. Wood Valley Road and Cane Haul Road were closed near Pahala. In the Puna District, North Kulani Road was closed. Many of the roads were damaged.

High Wind, Windward Haleakala

When
August 25, 5:00 AM HST to 10:00 AM HST
Where
Windward Haleakala forecast zone
Measured
43 kt (49 mph) estimated gust
Property damage
$20,000
Reported by
County Official
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

There was a road closure on Olinda Road fronting Seabury Hall on both south and north sides due to large tree down with lines.

High Wind, Honolulu Metro

When
August 25, 6:00 AM HST to 10:00 AM HST
Where
Honolulu Metro forecast zone
Measured
39 kt (45 mph) estimated gust
Property damage
$10,000
Reported by
County Official
Coordinates
21.455, -157.961 (the zone’s center; the record gives no point)

Paki Ave. was shut down in the east bound direction from Monsarrat Ave to Kapahulu Ave due to a downed utility pole.

Tropical Storm, Kona

When
August 25, 7:00 AM HST to 11:00 AM HST
Where
Kona forecast zone
Property damage
$10,000
Reported by
County Official
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

Highway 11 was closed in Milolii due to a downed tree on power lines.

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.
Tropical Storm
A tropical cyclone with sustained winds of 34 to 63 knots (39 to 73 mph).
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Hawaii in 2024Every state in 2024This day in weather historyWarnings in Hawaii, August 2024The 2024 hurricane season

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1206249, 1207978, 1206238, 1207979, 1206232, 1207981, 1207980, 1208003.