* WHAT...Temperatures of 102 to 108 expected, with widespread Moderate HeatRisk and areas of Major HeatRisk today.

* WHERE...Sacramento Valley, Delta, northern San Joaquin Valley, and Sierra foothills

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...Hot temperatures may cause heat illnesses, especially for those more sensitive to heat.

* ADDITIONAL DETAILS...Hottest temperatures are expected in the northern Sacramento Valley, with very limited cooling during the evening and nighttime hours.

Precautionary/Preparedness Actions:
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.