Extreme Heat Watch: New Castle; Mercer; Salem; Gloucester; Camden; Northwestern Burlington; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks

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Extreme Heat Watch — New Castle; Mercer; Salem; Gloucester; Camden; Northwestern Burlington; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks Severity: Severe. Certainty: Likely. * WHAT...Dangerously hot conditions with heat index values up to 110 degrees possible during the daytime hours. * WHERE...Portions of northern Delaware, central and southern New Jersey, and southeast Pennsylvania. * WHEN...From Wednesday afternoon through Saturday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Very warm low temperatures in the mid 70s to low 80s at night will not offer any relief from the heat. This combined with multiple days of near record breaking temperatures will exacerbate the impacts from the heat and humidity.