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MEMPHIS, Tenn. — The National Weather Service has issued a Excessive Heat Warning for several counties including Poinsett, Mississippi, Cross, Crittenden, St. Francis, Pemiscot, Desoto, Lake, Obion, Dyer, Lauderdale, Tipton and Shelby.

The warning is active until 8 p.m. Friday.

The entire Mid-South is still under a Heat Advisory until Saturday evening.

Heat Index values are expected to reach 110 to 112 degrees Friday night and up to 109 degrees on Saturday.