Extreme Heat Warning

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 106 expected. For the Lake Wind Advisory, west winds 10 to 15 mph with gusts up to 30 mph expected.

* WHERE...Central and Southeast Phillips, Central and Southern Valley, Garfield, McCone, and Petroleum Counties.

* WHEN...For the Extreme Heat Warning, from 10 AM Friday to 10 PM MDT Sunday. For the Lake Wind Advisory, from noon to 6 PM MDT Friday.

* IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Heat related illnesses increase significantly during extreme heat and high humidity events.