Extreme Heat Watch

* WHAT...Temperatures 85 to 90.

* WHERE...Orange County Coastal Areas and San Diego County Coastal Areas.

* WHEN...From Tuesday morning through Friday evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* ADDITIONAL DETAILS...Overnight lows around 5 to 7 degrees above normal will limit relief from the heat, especially for those without adequate cooling.