Heavy Rain, Honolulu
- When
- October 23, 7:04 AM HST to 12:59 PM HST
- Where
- Honolulu County, 0.68 mi NNW of Kahuku to 0.5 mi ESE of Kaaawa
- Reported by
- Official NWS Observations
- Coordinates
- 21.689, -157.953
Heavy Rain in Hawaii, October 23, 2011
Winds veering from east to east-southeast caused enough instability to produce heavy rain over the Koolau Range and windward coastal areas on Oahu. 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
Winds veering from east to east-southeast caused enough instability to produce heavy rain over the Koolau Range and windward coastal areas on Oahu. There were no reports of serious property damage or injuries.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Honolulu, HI wrote its last area forecast discussion before the first event at Oct 23, 3:30 AM HST, 3 hours 34 minutes earlier.
Area forecast discussion, Oct 23, 3:30 AM HST, 3 hours 34 minutes before
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</html>The radar
The national radar mosaic for the moment the first event began.
Event by event
2 heavy rain. Local standard time, as filed.
Heavy Rain, Honolulu
- When
- October 23, 1:18 PM HST to 7:16 PM HST
- Where
- Honolulu County, 1.15 mi SW of Village Park to 0.48 mi NNW of Kailua
- Reported by
- Official NWS Observations
- Coordinates
- 21.387, -158.041
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 2011Every state in 2011This day in weather historyWarnings in Hawaii, October 2011
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: 346705, 346706.