An Extreme Heat Warning is in effect for southern Nevada, northwest Arizona, and southeast California on Wednesday and Thursday. Temperatures are forecast to be 5 to 10 degrees above normal. Desert valley areas are under a Major Heat Risk, level 4 out of 5. The warning applies to those without access to proper cooling or hydration, according to the National Weather Service.
Temperatures are expected to peak by midweek, and fire danger will increase later in the week due to stronger winds and dry conditions. A high pressure system will bring heat and wind, with "Breezy winds with widespread gusts of 25-25 MPH are expected each afternoon Thursday through Saturday," the National Weather Service said. Gusts may go over 40 MPH in areas like the Western Mojave Desert. Humidity levels may drop to around 10 percent or lower. Temperatures are expected to return to near normal by Sunday.
Triple-digit temperatures will continue this week in Las Vegas and nearby areas. Clear skies and VFR conditions are expected over the next 24 hours, with winds shifting to normal daytime patterns at speeds under 10KT. An upper-level trough may arrive later in the week, possibly bringing some temperature changes. Local weather spotters are asked to report any significant conditions to help emergency services monitor the situation, as reported by the National Weather Service.
