Hawaii Faces Severe Flooding: Emergency Evacuations and Dam Concerns

Sat Mar 21 2026 13:26:51 GMT+0000 (Coordinated Universal Time)

Heavy rains have caused the worst flooding in Hawaii in more than 20 years, prompting evacuation orders for thousands and raising concerns over the stability of a century-old dam.

Hawaii is experiencing serious flooding due to heavy rains, leading to thousands of evacuations and concerns over an aging dam. Governor Josh Green warned of potential costs exceeding $1 billion and emphasized the importance of federal aid to assist in recovery efforts. The flooding, which has affected the North Shore of Oahu, is the most severe in two decades, with significant rainfall expected to continue over the coming days.

HONOLULU (AP) — Hawaii is grappling with its most devastating flooding in over two decades, with heavy rainfall exacerbating already saturated soils from preceding storms. This has prompted authorities to issue evacuation orders for 5,500 residents in Oahu’s North Shore region, facing imminent danger as officials warn of the potential failure of a 120-year-old dam.

Governor Josh Green announced that costs related to the disaster could exceed $1 billion, affecting key infrastructures such as airports, schools, roads, and a hospital in Maui. This will have serious consequences for us as a state, he stated during a press conference.

Currently, most areas in Hawaii are under flood watches, and locations like Haleiwa are under flash flood warnings, as more rainfall is expected over the weekend. Fortunately, no fatalities or missing persons have been reported, though around ten individuals have received treatment for hypothermia.

In response to the critical situation, rescue operations are underway, with a rapid response team airlifting 72 children and adults from the Our Lady of Kea’au retreat in a bid to ensure their safety. The damage done thus far has been catastrophic, said Honolulu Mayor Rick Blangiardi, as crews continue to assess the situation.

The rainfall has led to an alarming increase in the water levels of the Wahiawa dam, causing officials to keep a close watch. Late Friday night, levels had risen, nearing critical limits just several feet shy of capacity.

Residents like Waialua local Kathleen Pahinui expressed deep concern over the aging dam, stating, We understand there’s more rain coming. Experts warn that the risk of failure could have severe consequences, demonstrated by historical instances where flooding has wreaked havoc on communities.

The state acknowledges the looming dangers, with the earthen dam originally built in 1906 posing significant safety risks. As the state prepares for further adverse weather conditions, they emphasize the need for proactive measures to mitigate potential disasters.

As officials aim for federal assistance and prepare for more torrential rainfall in the upcoming days, the state's pressing need for updated infrastructure and safety compliance remains at the forefront of discussions concerning this devastating event.