Flood — Grant, Oregon

2011-05-15 to 2011-05-16 · near Canyon City, Grant, Oregon

$688K

Property damage

Event narrative

Low lying areas of Canyon City, John Day, Prairie City, and Mount Vernon were flooded along with other areas along the John Day River to the Picture Gorge area. The basement of the high school in Canyon City was flooded as were several businesses.

Wider weather episode

An upper level low pressure system moved over the Pacific Northwest. Moist and unstable conditions ahead of the low triggered widespread thunderstorms with heavy rainfall and isolated large hail. This combined with the abundant spring snow-pack and wet ground to cause flooding and flash flooding. As the upper low brought colder air. late season heavy snow ended the episode in the Blue Mountains. Snowfall amounts in inches included Milkshakes Snotel (9) and High Ridge Snotel (7).

View location on OpenStreetMap → (44.3800, -118.9300)

Source: NOAA Storm Events Database, event_id 312521. Narrative written by the NWS forecast office that issued the report.