Arctic blast on the way to Central Texas this weekend

    The Arctic blast reaches us Sunday morning, just in time for the 3M Half Marathon. (CBS Austin)


    We’ll see some high highs, and very low lows this upcoming week. While I don’t expect any records to be set, the changes will be dramatic enough to have you shedding and adding the layers!


    We’ll have plenty of clouds in place as a weak disturbance cruises through Tuesday and Wednesday. Highs may only manage 50s Tuesday, but warm into the 60s Wednesday. Along the way, I’m expecting possible dense fog to develop Wednesday morning and the chance of some spotty light rain Wednesday to the south and east of Austin. Rain totals in parts of Bastrop, Fayette, Caldwell and Lee Counties could reach up to 1” while most areas to the north and west stay mainly dry.


    A weak cold front Thursday won’t actually cool things down at all! Instead, a southwest to west wind will send temps soaring into the 70s! We’ll see south winds on Friday with highs again topping out in the 70s. Both days will have a decent amount of cloud cover, and late Friday we could see some rain develop. I put in a 10% chance late for that possibility. Don’t get used to the warmth, because an Arctic blast is on its way!


    A strong cold front brings a quick shot of showers and possible non-severe storms early Saturday. Rain totals around 1/2” to 3/4” are possible. Behind the rain as the front pushes south, we’ll see falling temps and strong gusty winds. Right now, I’m advertising a high in the mid 50s, but temps might fall even more than that through the afternoon. In addition, we’ll have sustained winds out of the northwest 15-25 mph with gusts 40-50 mph possible. That may be enough for a wind advisory on Saturday.

    Winds will still be breezy by Sunday morning when 7,500 runners start the 3M Half Marathon. I’m forecasting a starting temp of 26 with a north wind (tailwind at least!) 10-15 mph. That will yield a wind chill of around 15. If you’re running or spectating, please make sure to dress for the cold. I’m expecting a temp of 32 by 10am, 38 by noon Sunday and a high of just 44. Our normal high is 62.

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