What you need to know about Austin weather Wednesday: Winter storm warning, more wintry mix overnight – Austin American-Statesman

Roberto Villalpando   | Austin American-Statesman

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Editor’s note: The Statesman is making this story about Austin winter weather free for everyone to read as a public service. If you don’t already, please subscribe today at statesman.com/subscribenow.

Austin power outage updates: Thousands still without power throughout Central Texas

Sunday: What you need to know about Austin weather Sunday: Snow makes 2nd visit to Austin this year

Monday: What you need to know about Austin weather Monday: Day 5 of freeze, no rain until Wednesday

Tuesday: Winter storm warning in effect until Thursday

Austin Water is asking customers in Southwest Austin and the Lost Creek neighborhood to boil their water before using it for drinking or cooking, until further notice.

The boil water notice went out after 11 a.m. Wednesday, marking the first sign of water trouble following power outages that have left much of the city without electricity since Monday morning.

Austin Water says it has not detected contaminants in its water supply and that the notice is out of precaution. All Austin Water customers — not just those in the areas with the boil notice — are being asked to limit their water usage to essential needs to avoid a possible citywide boil notice.

Full story: Boil water notice issued for Southwest Austin, Lost Creek; other areas told to limit usage

Wednesday forecast for Austin

What do you need to know about Wednesday’s weather? Please stay off the roads.

“A significant and crippling icing event is ongoing this morning,” the National Weather Service said in a bulletin early Wednesday. “Travel is near impossible in many locations across the Hill Country and along and east of the I-35 corridor this morning due to ice-covered roads.”

If you must travel, the weather service recommends keeping an extra blanket, a flashlight, a charged cell phone, extra food and bottled water in your vehicle in case of an emergency.

Forecasters warn that ice-coated tree limbs and power lines could come down early this morning where heavier icing already occurred in the past several days.

Temperatures could edge above freezing in the afternoon and allow partial melting. But a second round of freezing rain and sleet is expected late Wednesday night, before changing over to snow Thursday, the weather service said.

“Heavier snow amounts are currently forecast across the Rio Grande and western Hill Country,” forecasters said.

A winter storm warning remains in effect until 6 p.m. Thursday for the Austin metro area and neighboring Hill Country, the weather service said. The warning was extended from 6 a.m. Thursday into the evening because of the timing of the new precipitation starting late Wednesday.

Austin’s outlook for Wednesday calls for freezing rain to continue until 9 a.m. Daytime temperatures could reach 1 degree above freezing for a high near 33. But wind chills will be produced by north winds of 5 to 10 mph.

At night, Austin has another slight chance of freezing rain and sleet between midnight and 3 a.m., forecasters said. 

Overnight temperatures Wednesday into Thursday will retreat to below freezing for a low around 25 degrees. Biting north winds will persist with gusts as strong as 20 mph.

A slight chance of snow, freezing rain, and sleet will be possible early Thursday. 

The weather service’s extended forecast calls for thawing temperatures to kick in Friday and more seasonable temperatures for February in Austin coming this weekend:

Thursday: A slight chance of snow and sleet before 9 a.m, then a slight chance of snow. High near 34 with north winds of 10 to 15 mph and gusts as high as 20 mph. Mostly clear at night with a low around 18. North-northwest winds persist.

Friday: Sunny with a high near 42. Then mostly clear at night with a low around 25.

Saturday: Sunny with a high near 54. South winds increasing to 5 to 10 mph in the morning with gusts as high as 20 mph. At night, mostly cloudy with a low around 43.

Sunday: Mostly sunny with a high near 60. Then at night, partly cloudy with a low around 38.

Monday: Sunny with a high near 60. Mostly clear at night with a low around 37.

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What you need to know about Austin weather Wednesday: Winter storm warning, more wintry mix overnight – Austin American-Statesman

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