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 >

December 1, 2006
High Winds

A vigorous area of low pressure produced high winds across the region.

Environment

Radar reflectivity image shows squall line tearing through the Tri State.	Double-barrelled low pressure (solid blue lines) lifting north into the Great Lakes produced high winds across the region. The low was supported by a deep 500mb low (yellow dashed lines) tracking through Illinois.	Visible satellite image shows swirl of clouds associated with intense low pressure. Surface observations show widespread high winds, as well as heavy snow over Illinois.