Flash flood · Hawaii

Flash Flood Warning for Keanae and Maui County, HI

The National Weather Service in Honolulu issued a Flash Flood Warning for the island of Maui until 11:45 AM HST on Thursday, October 29, 2026. Radar showed rain falling at 1 to 2 inches per hour over windward and southeast Maui.

Key facts

Alert
Flash Flood Warning (severe)
Issued by
National Weather Service, Honolulu HI
Areas
Maui, HI
Places
Keanae, Nahiku, Kipahulu, Kaupo, Huelo, Makawao, Hana, Pukalani, Haiku-Pauwela, Haliimaile
In effect
until 11:45 AM HST, Oct 29, 2026
Detection
Radar indicated
The red outline is the area the National Weather Service put under the flash flood warning. Source: NWS alert polygon. Not to scale with roads.
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What the National Weather Service says

“Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.”

NWS Honolulu HI, Flash Flood Warning, 10:30 AM HST Oct 29, 2026 · official alert

“Be aware of your surroundings and do not drive on flooded roads.”

NWS Honolulu HI, Flash Flood Warning, 10:30 AM HST Oct 29, 2026 · official alert

“Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.”

NWS Honolulu HI, Flash Flood Warning, 10:30 AM HST Oct 29, 2026 · official alert

What to do

Do not drive on flooded roads. The National Weather Service says most flood deaths occur in vehicles. If you meet water over a road, turn around and find another route.

Just 6 inches of moving water can knock you down, and 1 foot of moving water can sweep a vehicle away. Never drive around barricades.

Move to higher ground if you are near a creek, stream or low-lying area. Stay aware of your surroundings, since flash flooding is ongoing or expected to begin shortly.

Areas named in the warning include Keanae, Nahiku, Kipahulu, Kaupo, Huelo, Makawao, Hana, Pukalani, Haiku-Pauwela and Haliimaile. Check for updates from the National Weather Service until the warning ends.

Context

FEMA flood-insurance records show 819 claims in Maui County from 1978 to 2026. That count covers only insured properties, so it does not capture all flood damage.

FEMA has also recorded several disaster declarations for the county, including a flood declaration for severe storms, flooding, landslides, and mudslides on 2026-04-07 and two hurricane declarations on 2026-10-07.

Updates

  1. The National Weather Service updated the flash flood warning; it remains in effect until 11:45 AM HST.
  2. NWS Honolulu HI issued the flash flood warning until 11:45 AM HST.

History here

Maui County: 819 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.

Maui County: recent federal disaster declarations

  • DR-4951 (2026): hurricane lala
  • DR-4952 (2026): hurricane lowell
  • DR-4909 (2026): severe storms, flooding, landslides, and mudslides
  • DR-4724 (2023): wildfires and high winds
  • DR-4639 (2022): severe storms, flooding, and landslides
Check a home here for flood risk, free →

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Questions

Is there a flash flood warning on Maui?
Yes. The National Weather Service in Honolulu issued a Flash Flood Warning for the island of Maui at 8:55 AM HST, in effect until 11:45 AM HST on October 29, 2026.
What is causing the flash flooding on Maui?
Doppler radar showed heavy rain over windward and southeast Maui, falling at 1 to 2 inches per hour and nearly stationary along the eastern flank of Haleakala. Streams such as Oheo Gulch have been steadily rising.
Which places on Maui are affected by the warning?
The National Weather Service named Keanae, Nahiku, Kipahulu, Kaupo, Huelo, Makawao, Hana, Pukalani, Haiku-Pauwela and Haliimaile. Flooding is possible in small creeks, streams, urban areas, highways and underpasses.

Sources

  1. NWS Honolulu HI: Flash Flood Warning, Oct 29, 2026 weather.gov
  2. FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov

How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.