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Saturday: Cloudy AM, partly cloudy PM, isolated shower/storm late. Winds: S 5-15. High 97. (Hottest this year)
Saturday Night: Scattered showers & storms (40% chance). Winds: SE/N 5-10. Low: 73
Sunday: AM showers possible. Not as hot & not as humid. Winds NE 5-10 mph. High: 91.
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Freezing Rain Risk
The Arctic blast is here and temps are 30 to 50 degrees colder than a day ago. Now, some moisture is running up and over that cold air...it's the recipe for possible icy conditions to develop as the warm air aloft may freeze once it reaches the cold surface. It doesn't take much ice to cause problems on the roads, so be on guard for significant ice in Mason County where a WINTER STORM WARNING is posted and light icing on bridges, overpasses and some untreated and less-traveled roads through the Austin area and the rest of the Hill Country where a WINTER WEATHER ADVISORY is posted.
How Cold Will it Get?
Overnight, temps will fall to or below freezing possibly through the entire viewing area, with the exception of Fayette County. In the Hill Country, upper 20s are possible. That means if we get any precipitation, it has the potential to freeze on contact. The heaviest moisture continues to show signs of staying North Texas and just clipping the Northwest Hill Country, but some light moisture could be enough for the rest of Central Texas to get a touch of icing. Better safe than sorry - be ready for possible delays and take it slow if you have to be on the roads. Since we've had so much warm weather lately, many of the roads will initially be too warm to freeze, but that could change once freezing temps settle in. Some areas in the Hill Country may barely warm above freezing Friday and could stay below freezing all day Saturday into Sunday morning!
How Much Ice?
Mason County points north and west could see up to 1/4" of ice - that's significant and could cause some big problems on roads and possibly power lines.
Gillespie, Llano, Burnet and northern Williamson Counties could see up to 1/10" of ice - especially on bridges and overpasses.
Austin and the rest of the KEYE-TV area except for Fayette County could see .01" to .05" of ice - which is so little that it may only cause minor issues - mainly on bridges and overpasses.
When will it be over?
The BEST chance of freezing rain comes Thursday night into Friday morning. Then, we get into a lull through the day Friday, Friday night, and Saturday. Saturday evening another disturbance pushes in, and though the moisture with it looks even lower, there's actually a BETTER chance of light icing for areas along and east of I-35, including Austin, Bastrop, La Grange, Lockhart, Giddings and Rockdale. The ice amounts look like they will range from 0.01 to 0.05" by Sunday morning, so only minor problems are expected. Sunday afternoon, this system finally lets go.
STORM TRACKER FORECAST
Thursday Night: 31 Freezing rain and rain possible. Winds: N 10-20
Friday: 36 Freezing rain possible early, then cloudy. Winds: N 10-20
Friday Night: 25 *Coldest this season for some areas* Cloudy. Winds: N 10-15
Saturday: 33 Cloudy and cold, chance of light freezing drizzle developing in the evening. Winds: N 10-15
Saturday Night: 29 Light freezing drizzle possible - especially along and east of I-35.
Sunday: 48 Early freezing drizzle possible, then mostly cloudy but not as cold.
Stay warm and be careful!
Chief Meteorologist Chikage Windler
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