Holiday heat wave sent hundreds to Maryland emergency rooms

More than 470 heat-related emergency room visits were reported during last week's Independence Day heat wave, more ER visits in one week than had been recorded for the entire heat season that began in May, according to new data.

By: Danielle J. Brown

Outlets: Maryland Matters

Published: July 10, 2026

Words: 801

Last Updated: 6 days, 7 hours ago

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More than 470 heat-related emergency room visits were reported during last week’s Independence Day heat wave, more ER visits in one week than had been recorded for the entire heat season that began in May, according to new data.

State officials had warned last week of potential health problems from the record high temperatures, which hit triple digits on several days. And Wednesday’s update of the Weather-Related Illness Data Dashboard from the Maryland …

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