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North Shore Oʻahu
Disaster Prep

Community preparedness resources

Ready before it matters.

Practical, trusted information to help families in Haleʻiwa and Waialua prepare for storms, floods, hurricanes, tsunamis, and other emergencies.

Plan ahead

Prepare your household

Keep 14 days of supplies at home, including 1 gallon of water per person, per day. Plan for pets, too, and pack a portable go-kit for evacuation.

Know your risk

Check the places you spend time

Look up your home, workplace, school, and regular routes before an emergency—not while one is unfolding.

01

Oʻahu Hazard Explorer

Enter an address to view tsunami, flood, dam or levee evacuation, and wildfire hazards.

Explore your location
02

Tsunami evacuation maps

Know whether you are in the primary or extreme evacuation zone and where safety begins.

Important: Assembly areas are not shelters and may offer no services.
View tsunami maps
03

Hurricane Shelters and Refuge Areas

Find official information on emergency shelters and refuge areas. Confirm which locations are open and suitable for the emergency before you go.

View shelters and refuge areas
04

Outdoor warning sirens

Find nearby sirens and learn what to do when you hear the statewide warning system.

View siren information
05

Wahiawā Dam information and evacuation map

Review official dam information and the downloadable evacuation map. On the dam page, find the flood map in the list on the left.

Open dam information

Weather and water

Monitoring tools

These tools provide observations and forecasts. They do not replace emergency alerts or instructions from public officials.

Official forecast

National Weather Service Honolulu

Current forecasts, watches, warnings, advisories, tropical weather, and local conditions.

Open NWS Honolulu
National Flood Prediction ServiceNOAA water forecasts for the Honolulu forecast area Hawaiʻi Reservoir Data ViewerUniversity of Hawaiʻi reservoir-level observations USGS Water Data for HawaiʻiStream, reservoir, groundwater, and monitoring locations
Advanced monitoring toolsRain gauges, streams, watersheds, and historical records
Hourly rain-gauge viewerSynoptic Data precipitation observations State streams mapOpen in Map Viewer, zoom in, and select a stream State watersheds mapOpen in Map Viewer, zoom in, and select a watershed Oʻahu Storm Date IndexCommunity-built index linking to original NOAA records Hawaiʻi Wind RecordsCommunity-built statewide table sourced from NOAA records

Learn before an emergency

Understand how response is organized

FEMA's free ICS-100 course introduces the Incident Command System and explains how it relates to the National Incident Management System.

Free online course About 2 hours No prerequisites
ICS Training NIMS Training

After a disaster

Document damage and find recovery information

Photograph damage before cleanup when it is safe to do so, keep receipts, and follow official instructions. A City damage report helps document community impacts; it is not an application for financial assistance.

Report residential damageCity and County of Honolulu self-report form Storm recovery informationCurrent City recovery resources and updates

Community contact

Have a preparedness resource to share?

Send questions, corrections, or suggested North Shore resources to the community preparedness team.

Email the community team

Not monitored 24/7.
For emergencies, call 911.