Natural Disaster Risk — ZIP Code 99403

Natural Hazard Profile: ZIP 99403, Washington

Located in the Pacific Northwest, ZIP 99403 serves the Clarkston community. The oceanic climate of this part of Washington — bringing mild, rainy winters west of the Cascades and semi-arid conditions to the east — directly shapes the hazard exposure for properties in this postal area.

ZIP 99403's overall natural disaster risk is rated 4.3/10 (Moderate) by FEMA's National Risk Index. The threat of avalanche is the primary natural hazard here, with winter snowpack instability on mountain terrain posing risks to roads, structures, and outdoor recreation activities. Secondary hazards include wildfire and landslide.

Relative to other U.S. communities, ZIP 99403's natural disaster risk is near the U.S. national average of 4.5/10, slightly below the 5.8/10 state average. The hazard distribution here is led by avalanche and wildfire, as measured by FEMA across Washington. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.

With a moderate risk rating, ZIP 99403 residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for avalanche is recommended.