Power outages across Oahu have knocked out traffic signals, making driving risky tonight.

• Many intersections are dark, and only some have officers directing traffic.
• Police say to treat any dead signal as a four-way stop unless an officer is there.
• Drivers should slow down, use headlights, and watch for debris, downed trees, and power lines.
• Police are asking people to stay off the roads in the hardest-hit areas.

Outlook: Roads stay dangerous until power is restored and signals come back on.