Flash Flood Warning Hawaii | Effective 03/23/2026 17:16

Headline: 
Flash Flood Warning issued March 23 at 2:16PM HST until March 23 at 3:45PM HST by NWS Honolulu HI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 23, 2026 - 5:16pm
Expires: 
March 23, 2026 - 6:45pm
Description: 
At 216 PM HST, radar indicated areas of heavy rain continuing over portions of east and southeast Big Island. The heaviest rain is now between Volcano and Hawaiian Paradise Park, as well as near Pahala, including portions of Mamalahoa Highway. Rain was falling at a rate of 1.5 to 3 inches per hour. Paauau Gulch near Pahala saw a sharp rise in water levels, but is now trending downward. Additional areas of heavy rain and thunderstorms are likely over the Big Island through the remainder of the day. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Hilo, Hawaiian Paradise Park, Honokaa, Volcano, Glenwood, Mountain View, Hawaii Volcanoes National Park, Hawaiian Acres, Keaau, Wood Valley, Pohakuloa Camp, Papaikou, Pepeekeo, Pahala, Honomu, Pahoa and Hakalau.
Instruction: 
Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Excessive runoff from heavy rainfall will cause flooding of drainage ditches and streams, streets, highways, properties, and other low lying spots.
Area Description: 
Hawaii in Hawaii, HI
Forcast Office: 
NWS Honolulu HI
Sender: 
w-nws.webmaster@noaa.gov