Sunny skies and triple-digit heat are back in Las Vegas this Sunday, with a high near 100°F expected and southerly winds building through the afternoon. Overnight lows will stay in the mid 70s, and very low humidity in exposed areas will make the air feel especially dry.
Afternoon Gusts And Fire Danger
Southerly to south-southwesterly winds will strengthen through the afternoon, with sustained speeds around 7 to 18 mph and forecast gusts to roughly 28 mph. Localized gusts of 30 to 40 mph are possible in favored corridors and parts of northwest Arizona.
A Red Flag Warning remains in effect through this evening for northwest Arizona and the Nevada side of the Colorado River Valley, and a Fire Weather Watch covers much of southern Nevada and northwest Arizona on Monday and Tuesday. Forecasters also note a Lake Wind Advisory is likely Monday afternoon for Lake Mead and Lake Mohave, where sustained winds near 25 mph and gusts to about 35 mph could produce waves over 3 feet.
Given the single-digit to mid-teen humidity and dry fuels, the window for rapid fire spread is elevated. Secure loose outdoor items, avoid open burns and report any smoke to authorities, according to the National Weather Service.
Boating And Cooling Resources
Boaters should rethink any plans for Monday afternoon, since choppy water and 3-plus-foot waves are possible on local reservoirs and launch ramps may be hazardous. Clark County has been activating daytime cooling stations and other respite sites as temperatures climb; see triple-digit heat and dusty winds for links to county updates and cooling-center lists before you head out.
Midweek Heat Spike
Temperatures climb through the week, rising into the low to mid 100s. Forecasts show highs near 105°F by Wednesday and Thursday, with values approaching 108°F by Friday and Saturday. Monitor watches and advisories and move strenuous outdoor work to early morning or evening when possible, per the National Weather Service.
What To Do Now
Hydrate, avoid heavy exertion during afternoon hours and keep pets and children out of parked cars. If you are boating, delay trips during advisories, tie down loose patio furniture and report any smoke or signs of fire to 911. Spotters and boaters should pass along significant gusts or waves to local authorities.
