Our busy weather pattern continues with a pair of storm systems expected to impact the area during the remainder of the week.
The first one, a very impressive, strong upper low pressure system located over the Southern Plains has been responsible for the rain we've seen today and the additional rain that we are expecting tomorrow.
Behind this system, we are tracking another significant upper level disturbance that looks to bring a very strong cold front through our area on Saturday.
As we talked about yesterday, this front will bring The Real Deal Chill! Temps will plummet behind the front as temps dive through the 40's and into the 30's.
Could we see our first flakes?
Rumors have been flying about the possibility of snow indeed the data is coming around to support the idea of a light wintry mix on the backside of Saturday's cold front.
The Forecast Sounding
A forecast sounding is essentially like looking at a slice of the atmosphere at a future moment in time.
Taking a look at the below forecast sounding for Louisville at 1:00 PM on Saturday and you will notice the diagonal "freezing line" or 32°F line in LIGHT BLUE. You will also see the air temperature in RED and the dewpoint temp in GREEN.
Anywhere the red line is to the left of the freezing line represents temperatures that are below freezing. Where the red line and green line meet, represents where the air is saturated.
You will also notice that the air temperature at the bottom of the atmosphere (also bottom of the profile) is a few degrees above freezing and the air near the surface is also not saturated, meaning it is relatively dry (meaning there is a separation between the red and green lines).
The surface dry air can help produce "evaporational cooling" during precipitation and will help to drop the temperature further.
So what does this mean?
I think after some initial rain showers, the forecast profile is supportive of some light wintry precipitation in the form of snow flurries or sleet pellets for a short time during the late morning or early afternoon hours.
Could we see accumulations?
First flakes, yes! Accumulations NO! Ground and air temps are too warm and there simply won't be enough moisture left for that to occur.
Marc will have a full update tonight on WDRB News this evening.
WDRB Meteorologist Jeremy Kappell
Find me on Facebook!
Follow me on Twitter!
Email me at email@example.com