Hawaii, 2010

Heavy Rain in Hawaii, October 18 to 21, 2010

October 18 to 21, 2010 · NWS HFO · 4 events in 3 counties and zones

Unstable conditions associated with an upper trough west of the state led to heavy rain over three islands. There were no reports of serious property damage or injuries.

Where it happened

Every event with a place to put it. 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

Unstable conditions associated with an upper trough west of the state led to heavy rain over three islands. There were no reports of serious property damage or injuries.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

4 heavy rain. Local standard time, as filed.

Heavy Rain, Honolulu

When
October 18, 5:50 PM HST to 11:27 PM HST
Where
Honolulu County, 0.74 mi NNW of Kahuku to 0.2 mi NNW of Woodlawn
Reported by
Official NWS Observations
Coordinates
21.690, -157.953

Heavy Rain, Maui

When
October 19, 2:18 PM HST to 7:37 PM HST
Where
Maui County, 1.11 mi ESE of Honokahua to 3.41 mi NNW of Koali
Reported by
Official NWS Observations
Coordinates
20.992, -156.635

A couple of mainland visitors to Maui became stranded by rising waters on East Maui Irrigation property in the later afternoon on the 19th. A text message from the couple to a friend on the mainland was then relayed to the Maui police. A rescue crew from the Maui Fire Department was dispatched, and the two visitors were located just before dark and transported to safety. There were no serious injuries to anyone involved in the incident. Details are from the Maui News of October 21, 2010.

Heavy Rain, Hawaii

When
October 19, 4:02 PM HST to 5:18 PM HST
Where
Hawaii County, 2.92 mi SSE of Honaunau to 5.89 mi W of Naalehu
Reported by
Official NWS Observations
Coordinates
19.410, -155.366

Heavy Rain, Honolulu

When
October 21, 3:28 AM HST to 6:23 AM HST
Where
Honolulu County, 1.84 mi W of Hauula to 1.25 mi S of Kaneohe
Reported by
Official NWS Observations
Coordinates
21.623, -157.929

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

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

The same day elsewhere

More

Every storm in Hawaii in 2010Every state in 2010This day in weather historyWarnings in Hawaii, October 2010

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 2026-10-01. Each event’s entry at NCEI: 259806, 259807, 259808, 259809.