Flood Hazards Gallery
In November 2000, the Big Island was hit with an enormous amount of rainfall, resulting in flooding in Hilo, Puna, and Kaʻū. The November 2000 flood dropped a record-breaking amount of rain on the southeastern half of the Big Island. A total of 37 inches of rain fell in 24 hours at Kapāpala Ranch near the town of Pāhala. Out of this total, an incredible 22.25 inches fell in just 6 hours.
Year 2000 Mega Flood on the Big Island
The Millennium Flood resulted from two tropical storms stacking one atop the other. The footage of Pāhala’s flash flood is amazing; the road and bridge are completely underwater, as standing waves rush through the area.
Year 1994 Giant Waves Invade Condo at Keaukaha
This video was shot by Tom Robb, a geology student here at UH Hilo, from his home in Keaukaha. The waves were generated by a giant storm, and illustrate the type of flooding that can occur in Hawaiʻi from hurricane storm surge and from tsunamis.
Flood vs Drought in Hilo
This video showcases astonishing footage of the 1994 & 2000 floods in Hilo, comparing them to drought conditions in February 2010; each segment shows the area dry, followed by what it looks like underwater.
Hawaiʻi County Civil Defense Active Alerts
Visit the Civil Defense website for up-to-date information.