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West Coast Heat Wave Triggers Warnings With Portland Under Extreme Alert Through Tuesday

Forecasters warn that unusually warm nights will prolong health risks.

Portland Heat Wave Sets Records as Warnings Extend Into Tuesday

Extreme Heat and Fire Warnings Grip Colorado as Weekend Cooldown Nears

Extreme Heat Alerts Spread From Southwest to 20 States

Amtrak Train 94 Stranded in Baltimore Tunnel During East Coast Heat Wave