The Pacific Tsunami Warning Center’s latest tsunami warning update for Hawaii says that first waves to hit Kauai measured at amplitude 3 to 4 feet in Hanalei, and 0.7 to 0.8 feet Nawiliwili. Tsunami amplitude is “measured relative to normal sea level,” according to the 8 p.m. update.

Dr. Chip McCreery, a tsunami expert with the National Oceanic and Atmospheric Administration, shares what Hawaii should anticipate from the Tsunami Warning in effect. The tsunami is expected to reach