Hail in Flathead County, Montana
Hail June 8, 2016 · Flathead County, Montana
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
The public sent a photo showing multiple hailstones as large as quarters in Kalispell, MT.
The wider storm
The Northern Rockies were under southwest flow ahead of a large low pressure system off the West Coast. A shortwave trough and associated jet streak were moving through the southwest flow providing upper level forcing for thunderstorms. Precipitable water values ranged from 0.75 to 1.00 inches, with deep shear of 50 kts, and CAPE values of 500 to 1000 J/kg. Short range models highlighted long-lived storm modes over the area. A convective watch was issued around 3 pm MDT highlighting an atmosphere favorable for strong thunderstorm development.
Began near Kalispell (48.2131, -114.3371).
Source: NOAA Storm Events Database, event 644859. Narratives are written by the National Weather Service forecast office that issued the report.
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