Why temps will rise nearly 20° by Tuesday

AUSTIN (KXAN) -- A potentially historic heatwave is becoming more likely in the coming few days. All-time May record high temperatures are forecast to be broken for several cities in Central Texas.
LATEST FORECAST: From the First Warning Weather teamWidespread Heat Advisories and Extreme Heat Warnings are expected to be issued as early as Tuesday.Refresher: Heat Alert Criteria
BLOG: Here’s why ‘Excessive Heat Warnings’ are going awayHeat Advisories are issued when air temperatu