Arlington Washington sits in the Stillaguamish River valley and hosts Arlington Municipal Airport — a general aviation facility that has hosted military operations. The city experienced significant flooding from the 2014 Oso landslide disaster that killed 43 people just east of Arlington — the deadliest landslide in US history. Snohomish County emergency management has significantly upgraded landslide monitoring following the Oso disaster. The Stillaguamish River creates ongoing flooding risk for the valley.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 6 / 10 Moderate |
| Primary Hazard | Flooding / Military / Industrial |
| FEMA Flood Zone | Zone X (Seismic High Risk) |
| County FEMA Declarations | 44 |
| Last Major Event | Oso Mudslide (2014) |
// Emergency Information
| Emergency Phone | 360-403-3400 |
| Evacuation Routes | I-5 North, US-2 East, SR-9 North, SR-99 North |
| Elevation | 137 ft above sea level |
// County Risk Profile
Snohomish County WA
Washington · Earthquake / Landslide
View full county emergency preparedness profile →
8/10
High Risk
// Other Cities in Snohomish County WA
Mukilteo WA
Boeing / Military / Earthquake / Ferry
7/10
High
Edmonds WA
Earthquake / Ferry / Boeing Corridor
6/10
Moderate
Stanwood WA
Flooding / Agricultural / Earthquake
6/10
Moderate
Bothell WA
Earthquake / Flooding / Cascadia
7/10
High
Marysville WA
Earthquake / Flooding / Cascadia
7/10
High
Everett WA
Earthquake / Volcanic
8/10
High