Flash Flood Warning Issued for Maui as Heavy Rain Impacts Mount Haleakala

Alert Details

The National Weather Service in Honolulu has issued a Flash Flood Warning for the island of Maui. This alert is classified as a severe threat with immediate urgency, as flash flooding is ongoing or expected to begin shortly.

Affected Areas

The warning covers the entire island of Maui in Maui County. Specific areas of concern include the south-facing slopes of Mount Haleakala, where Ukumehame Gulch has already risen significantly due to heavy precipitation.

What You Should Do

Residents and visitors in the warning area are advised to stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Be aware that flooding can occur in drainages, roads, and other low-lying areas. Public road closures are possible, and those in steep terrain should remain alert for potential landslides.

Expected Conditions

At 5:37 PM HST, radar indicated heavy rain falling over Maui at a rate of 1 to 2.5 inches per hour. The heaviest rainfall is concentrated over the southern slopes of Mount Haleakala. These conditions are likely to cause rapid flooding of streams and urban areas.

Timeline

The Flash Flood Warning was issued at 5:37 PM HST on March 13 and is currently scheduled to expire at 8:00 PM HST on March 13.