Chance of rain Wednesday; severe weather more likely Thursday, Friday

National Weather Service
National Weather Service

Wednesday forecast for Austin: What a warm start to Wednesday: As of 5 a.m., it’s already 77 degrees and muggy at Camp Mabry in Central Austin!

The National Weather Service says communities in the Rio Grande plains and areas farther west of the Austin metro area could see severe weather on Wednesday, but the chances for anything worse than isolated storms are much lower in Austin and the urban areas along the Interstate 35 corridor.

The weather service expects much nastier storms to roll through the Austin metro area on Thursday afternoon and Friday, with heavy rain, hail and damaging winds being the likely threats.

Wednesday’s outlook calls for a 20 percent chance of storms after 2 p.m. under cloudy skies with a high near 88 degrees. Add the increased humidity to the mix and heat index values will rise, which means it will feel more like 97 degrees outside. Rain chances increases to 40 percent, mainly after 8 p.m. Heat-trapping humidity will keep nighttime temperatures no cooler than 74 degrees, forecasters say.

  • On Thursday, thunderstorms are likely, mainly between 8 a.m. and 8 p.m. Some of the storms could produce heavy rainfall, the weather service says. Rainfall amounts between 0.75 and 1 inch are possible. South-southeast winds around 10 mph will continue to bring Gulf moisture and increased humidity levels.
  • On Friday, thunderstorms are also likely between 8 a.m. and 8 p.m. and some storms could produce heavy rain. South-southeast winds of 10 to 15 mph could include gusts as high as 20 mph. At night, the chance of precipitation remains at 60 percent.
  • By Saturday, rain chances diminish to 30 percent, with the main threat of rain occurring before 8 a.m. Forecasters expect sunshine to return as temperatures climb to around 88 degrees. At night, a 20 percent chance of rain remains under mostly cloudy skies.
  • Sunday’s outlook calls for a 30 percent chance of rain, mainly after 8 a.m. under mostly cloudy skies and a high near 85.
  • The forecast for Memorial Day includes a 30 percent chance of storms under mostly cloudy skies and a high near 85.

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