Headlines:
Very Hot Temperatures Expected Today through Early Next Week...Peaking Sunday and Monday...with Monday Likely Being the Hottest DayHeat Advisory in Effect Until 7 pm Sunday for Portions of the Hill Country and Interstate 35 Corridor, Including the San Antonio Metro Area
Excessive Heat Warning in Effect Until 7 pm Sunday for Llano, Burnet, Williamson and Travis Counties, Including the City of Austin
Expansion of Excessive Heat Warning Likely to Include Large Portions of the Region for Monday
Area of Concern:
All of South-Central Texas
Threats & Impacts:
Temperatures: Air temperature by Sunday and Monday afternoons ranging from 101-107 deg across the Hill Country, 103-108 deg along the I-35 corridor (Austin/San Antonio), 107-110 deg along the Rio Grande, and 102-106 across the Coastal Plains.
Impacts: Prolonged exposure to this excessive heat could lead to dehydration, heat exhaustion or even heat stroke.
Timing and Overview:
Very hot temperatures are expected today, though the weekend, and into early next week, with temperatures gradually increasing each day. The hottest temperatures are expected to occur on Sunday and Monday, with Monday likely being the hottest day. A Heat Advisory is in effect for portions of the Hill Country and Interstate 35 corridor, including the San Antonio metro region, until 7 pm Sunday. An Excessive Heat Warning is in effect for Llano, Burnet, Williamson and Travis Counties until 7 pm Sunday. Additional counties may be added to the Heat Advisory/Excessive Heat Warning as needed. The Excessive Heat Warning will need to be continued through Monday evening, and will likely expand to cover much of the region for Monday as temperatures peak.Regardless of warnings and advisories, all of South Central Texas will be very hot during this extended heat wave. Take extra precautions if you must work or spend time outside. Wear light weight and loose fitting clothing, drink plenty of water, and take frequent breaks, preferably in an air conditioned areas, If possible, reschedule strenuous activities for the morning or late evening hours to avoid the heat of the day.Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during hot weather when car interiors can reach lethal temperatures in a matter of minutes. Look before you lock!
Confidence:High
GRAPHIC; NATIONAL WEATHER SERVICE