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Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Overview

During the evening of July 27, 2018, a supercell thunderstorm tracked southeast across Oglala Lakota County, producing large wind-driven hail that resulted in extensive damage to homes, vehicles, and crops. 300 or more homes and over 100 vehicles sustained damage. There were minor injuries reported from broken glass. 3.25 inch hail (between baseball and softball size) and winds of 80 mph were reported.

This story will be updated as additional information is received.

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