Spring Fever...

Louisville could make a run at 60 degrees if the clouds can stay at bay. NWS had said high of 56. But warm air advection and a rising February sun along with dry air can really go a long way to warming beyond initial forecast.

Look for even warmer readings later this week. You know, I kinda like this. Why do I believe that we're in for a milder scenario? First, let me emphasize that winter is not over yet. But, looking at a familiar teleconnector, the PNA (Pacific-North American pattern), it is taking the plunge below the zero line. That's good news for our region. A negative PNA brings troughy weather to the west while ridging occurs over our area, bringing an extended milder weather pattern. Here's a look at a forecast for the PNA:
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/pna_index_mrf.shtml

And here's a nice explanation of a negative PNA in map format:

Of course, this can only be possible if that NAO index behaves itself. It's been responsible for a very cold winter around these parts. And the good news is that the NAO index is forecast to be neutral to positive during this negative PNA phase. I think the next 7-10 days will be milder than normal for the most part.

Well, gotta go and enjoy some more of this fine weather.
MS