Flash Flood, Hawaii
- When
- November 1, 8:20 PM HST to November 2, 2:00 PM HST
- Where
- Hawaii County, Laupahoehoe
- Property damage
- $70 million
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 19.602, -155.523 (the zone’s center; the record gives no point)
Upper air instability and remnants of a tropical cyclone combined to generate torrential rains that produced severe flash flooding over eastern and southeastern parts of the Big Island on the 1st and 2nd of November. Four young men from Panaewa saved a woman and her three grandchildren from flood waters that were flowing through the woman's residence.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS HFO wrote it up.
Upper air instability and remnants of a tropical cyclone combined to generate torrential rains that produced severe flash flooding over eastern and southeastern parts of the Big Island on the 1st and 2nd of November. Twenty-four hour rainfall totals were as high as 25 to 37 inches, the latter figure being only one inch off the statewide record of 38 inches of rain in 24 hours set in January 25, 1956, in Kilauea, Kauai.Four young men from Panaewa saved a woman and her three grandchildren from flood waters that were flowing through the woman's residence. The men took the flood victims--one by one--to safety by ferrying them to the roof of a nearby carport using an inflatable plastic wading pool. The family was later rescued from the roof by firefighters.Public and private damage from the flood waters has been estimated at a cost of $70 million. The Red Cross indicated that the number of homes and apartments destroyed in the flooding had reached 33, with another 265 residential units damaged. Parts of several major roads, including Highway 11 in Kau and Highway 19 and Komohana Street in Hilo, will remain closed for weeks, if not months, until destroyed bridges can be rebuilt. Although some temporary bypass roads have been constructed since the flood, inconveniences to residents and businesses continue.
The South Shore radar (PHWA), 57 km away, was scanning. The volume nearest the first event began at 06:18 UTC.
1 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2000Every state in 2000This day in weather historyWarnings in Hawaii, November 2000
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 2026-09-24. Each event’s entry at NCEI: 5161568.