Austinites are bracing for extreme heat as the National Weather Service has issued an Excessive Heat Warning effective from 11 a.m. today until 8 p.m. Monday, covering an array of counties including Bastrop, Caldwell, Fayette, Hays, Lee, and Travis. KXAN reports that alongside this warning, a Heat Advisory will also be in place for Milam and Williamson Counties during the same timeframe.
With temperatures climbing, Sunday's scorcher peaked with a heat index reading of 119° at La Grange, while Austin's Camp Mabry hit a sweltering 108°, according to KXAN, and as the mercury rises the risk of heat-related illnesses increases, which means residents are urged to take preventive measures such as staying hydrated and avoiding prolonged outdoor activities. In addition to searing temperatures, yesterday saw pre-dawn thunderstorms tear across San Saba County, with lightning reported, yet no hail or gusty winds were detected and a gauge near Richland Springs recorded a modest 0.30 inches of rain.
Despite the potential for severe weather, the forecast for Memorial Day from the National Weather Service indicates a chance of showers and thunderstorms in the late afternoon, as storm cells expected to move west to east from Hill County may hit the region. The Storm Prediction Center has flagged Austin's eastern viewing area with a Marginal risk, meaning a Level 1 out of 5, for potential severe weather disruptions. Further, the pattern of high temperatures is slated to continue with an anticipated drop from today's high near the 100s only slightly decreasing towards the mid-90s for Tuesday and upper 80s by the weekend.
As the heat wave maintains its grip on the region, low-end rain chances ranging from 20% to 30% will linger over Austin from tomorrow until Saturday, providing some potential, though minimal, relief from the unyielding climb of the thermometer—temperatures are predicted to "fall" to the low to mid 90s on Tuesday and then undergo another subtle decrease to the upper 80s to low 90s Wednesday through Saturday, KXAN notes that the western Hill Country could experience even higher highs between 102° and 106° due to a surge of dry air which is likely to cause humidity levels to plummet to the teens and 20s making it feel somewhat less oppressive despite the sweltering temperatures.
