Flash flood
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Move to higher ground immediately if a flash-flood warning affects you or water is rising. Never cross flowing water on foot or in a vehicle. Leave low areas, canyons and basements without waiting to see how high the water gets.
Take it with you. Verify locally.
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In immediate danger, contact local emergency services. Current instructions for your location take priority.
Do now.
- 01
Get uphill
Move away from streams, low roads and drainage channels.
- 02
Turn around
Do not drive across a flooded road; the roadbed may be missing.
- 03
If trapped
Call emergency services and move to a higher open level without becoming trapped in a closed attic.
- 04
Follow routes
Use current evacuation and road-closure instructions.
Next steps.
Wait for official clearance. Water may rise after rain stops or when storms occur upstream.
Watch for.
A small-looking current can sweep away people and vehicles.
Sources & context.
Original Osprey Zero summary of the references below. U.S.-based guidance unless noted; check authorities where you are. This page is not a live alert.
Updated 2026-10-02. Recheck official instructions during an active event.