Strong Inversion Monday Morning

Here's a plot of the low level temperatures from the Monday morning sounding at Fairbanks. This isn't, overall, an especially strong inversion by Interior Alaska standards, but the steep temperature increase of 23 degrees in just 76 meters is quite impressive. Clouds moved in Monday morning and weakened the inversion in by the afternoon.

Another Morning, Another Inversion

Here's the morning sounding from Fairbanks, showing a strong inversion. At 9am, Goldstream Creek was -14F and Keystone Ridge +20F. Solar heating is increasing rapidly but is still not enough to come close to breaking the inversion. Yesterday the high temperature at Fairbanks was +11F, ten degrees lower than on Keystone Ridge.

Wicked Inversion

Here's the 3am AST Monday sounding from Fairbanks Airport, showing a very sharp surface inversion. That's a temperature of +4F at ground level, and +32F just 32 meters up. At 8am AST, the temperature at Goldstream Creek was -5F, while most of the hill elevation sites were reporting temperatures near +30F.

Slowwww Warming

Here's the plot of low level temperatures from Fairbanks. It continues to oh so slowly warm aloft. At 10am AST, Cleary Summit was up to -16F, and at 11am here on Keystone Ridge it was -22F. Meanwhile, at 11am, -50F at Fairbanks International.

Colder Air Moves in, Temperature Warms 30 Degrees

Here's a plot of the low level temperatures from Friday morning and Sunday morning. The airmass overall has cooled a bit, but the wind has mixed down to the valley floor in many area. The miracle of mixing. Here are the 8am Temperatures from Friday and Sunday:
Fairbanks Airport -33F -4F
Keystone Ridge +2F -10F