Good morning bloggers,
We are on a rollercoaster ride of temperatures whether we like it or not. Today will be the ride up and Saturday will be the big scary drop, followed by another big ride up on Sunday. And, we may actually see our first snowflakes of the season Friday or Saturday. Look below at the two surface maps beginning with this first one valid at 6 AM Friday:

Yesterday we talked about the term thickness. So, go back and read yesterday's blog for an introduction to this term. The dotted lines are thickness lines and the first blue one, the 540 line, indicates that it may be cold enough for snow. Notice the blue dotted line stretching across Nebraska and Iowa Friday morning, and then look where it is just 6 hours later at noon on the forecast map below:

This map shows the 540 line rapidly moving south of Kansas City. It could snow on Friday IF a significant area of precipitation would form. But, the air near the surface will likely be well above freezing and the most likely precipitation form would be rain showers with that first band of precipitation. An upper level storm will be developing as it passes by Friday so we will have to watch it very closely as it moves by. The better chance of our first snowflakes will come late Friday night or on Saturday, but this would come from very cold air aloft creating a few snow showers that would not have any chance of accumulating. The chance of these snow showers is pretty good on Saturday of them at least being scattered around our viewing area.
We will be tracking the developments of this rollercoaster ride on our newscasts today and tonight on NBC Action News. In summary, pay attention to the upper level storm developing late tonight and Friday as it drops into Kansas. If this is a bit stronger then Friday's rain showers could be more organized and then there could be some snowflakes mixed in earlier. We are due for our first flakes of the season.
Have a fantastic day!
Gary