Clark County's Heat Alerts can alert you via SMS, voice call, or email whenever the National Weather Service issues a Special Weather Statement, Heat Advisory, or Heat Warning. In addition to signing up for this program, you are encouraged to use Emergency Management's Smart-911 service to create an account and sign up for these alerts. Just use the link below to set up an account and then sign up for the "Heat Alerts" option and any other notifications you'd like to receive.
Link to Clark County Emergency Management's Smart 911 system:
https://www.smart911.com/smart911/ref/reg.action?pa=clarkcoin.