* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. expected.
* WHERE...Urban and coastal areas of Puerto Rico and U.S. Virgin Islands.
* WHEN...From 10 AM this morning to 5 PM AST this afternoon.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...Up to high concentrations of Saharan Dust will result in hazy skies and deteriorated air quality.