Hail in Morrow County, Oregon
Hail May 14, 2011 · Morrow County, Oregon
Where the report was made, with tornadoes recorded within 15 miles over the years.
The wider storm
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).
Began near Lena (45.2300, -119.2900).
Source: NOAA Storm Events Database, event 312527. Narratives are written by the National Weather Service forecast office that issued the report.
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