Heat Advisory: Central and Eastern Allegany; Hampshire; Hardy; Eastern Grant; Eastern Mineral

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Heat Advisory — Central and Eastern Allegany; Hampshire; Hardy; Eastern Grant; Eastern Mineral Severity: Moderate. Certainty: Likely. * WHAT...For the Heat Advisory, heat index values of 100 to 104. For the Extreme Heat Watch, dangerously hot conditions with heat index values of 105 to 110 possible. * WHERE...In Maryland, Central and Eastern Allegany County. In West Virginia, Eastern Grant, Eastern Mineral, Hampshire, and Hardy Counties. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Watch, from Thursday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Dangerous heat may linger into Saturday. Prolonged extreme heat could impact power, water, and transportation systems.