Tomorrow is a special day -- the winter solstice occurs at 5:23 pm EST Friday. For most of the Northern Hemisphere, it's the shortest day of the year, but for those who live above the Arctic Circle, the sun has not even been seen for a while. Our furthest north contest site is Nuiqsut, Alaska, and it's dark all day except for a period of twilight near noon, where the sun is close enough below the horizon to provide some light. Here's a nice page of Alaska webcams -- click on Nuiqsut and play a sequence of images in the middle of the day. You'll see the twilight conditions for a few hours, but the electric lights stay on the entire time. Let's forecast Friday's minimum temperature at Nuiqsut, and see how low it gets. Here's a forecast of the surface temperature at about the time of the solstice.
Question: At what time of the day do you expect the minimum temperature?
|Tmin, deg F (error)