* WHAT...Dangerously hot conditions. Afternoon temperatures up to 115 degrees. Local major Heat Risk.
* WHERE...Western Imperial County including the city of El Centro.
* WHEN...From 10 AM Wednesday to 8 PM PDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.