A Heat Advisory is meant to warn people that there is a higher-than-normal risk for heat-related illness do to elevated temperatures over a prolonged period of time.
SEATTLE — Much of western Washington has been under a Heat Advisory since last week and will remain so until Tuesday night when higher-than-average temperatures are expected to begin leveling off.
But what is a Heat Advisory, exactly? And when would the National Weather Service (NWS) issue one?
A Heat Advisory is issued when high temperatures create a moderate to major risk of heat-related illness in the impacted area. The threshold for a Heat Advisory is different
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