The Wenatchee World

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The latest extended forecast from The Weather Channel

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Air Stagnation Advisory issued February 11 at 6:56AM PST until February 13 at 10:00AM PST by NWS

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * AIR QUALITY...LIGHT WINDS AND A TEMPERATURE INVERSION WILL HEIGHTEN THE POTENTIAL FOR ELEVATED POLLUTION LEVELS IN CENTRAL WASHINGTON AND NORTHEAST WASHINGTON TONIGHT THROUGH SATURDAY MORNING. WEAK WEATHER DISTURBANCES WILL PASS THROUGH

Today

Hi39° Chance Rain then Rain

Tonight

Lo34° Rain

Friday

Hi44° Chance Rain then Slight Chance Showers

Friday Night

Lo33° Slight Chance Rain

Saturday

Hi47° Partly Sunny

Saturday Night

Lo35° Chance Rain

Sunday

Hi47° Chance Rain

Sunday Night

Lo38° Chance Rain

Washington's Birthday

Hi56° Partly Sunny

Monday Night

Lo39° Mostly Cloudy

How do they make the ice at a skating rink?

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Whether you are watching a figure skating competition at the Winter Olympics or a professional hockey game on TV, you are looking at one of the great unsung marvels of the modern age — indoor ice. The fact that people can go skating in the summer, or that spectators can watch ice hockey in a warm arena, would amaze our ancestors. Let’s take a look at how a modern ice rink works. The rink starts out as a thick slab of concrete with miles of pipe embedded in it. The pipes are filled with ice cold brine that comes from a large refrigeration plant. This plant uses the same kind of compressor technology that you find in your home refrigerator/freezer to create the ice cold temperatures. But it has been scaled up to massive size. The brine might be at 15 degrees F so the surface of the concrete drops below freezing.

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