Not So Snowy System Tonight Followed by Frigid Temps

Good morning and happy Monday! Hope you all had a terrific weekend and are ready for the week ahead. We’ll have a not so snowy system tonight followed by frigid temps from the Polar Vortex.

Currently…

Temperatures are in the mid-30s with clear conditions. Winds are starting out Southern and strong this morning, which will contribute to today’s slight warm-up before the cold front sweeps through tonight.

Current Temps (KY Mesonet)
Current Temps (KY Mesonet)

Monday Starting off Mild

Those southern winds will draw in warm air, which will contribute to today’s high temperature in the high-50s. Those mild temperatures won’t last long, as the cold front will be bringing in some frigid temperatures overnight. The Polar Vortex will be visiting our region and will be making its presence known.

The orange values are turning to blue real quick! (Pivotal Weather)
The orange values are turning to blue real quick! (Pivotal Weather)

Throughout the daylight hours, our area will be in the warm-sector of the approaching low-pressure system. The NAM model is showing the front passing through the area tonight, around 7 pm. A band of rain may hit initially, however, as the temperatures drop, the rain will quickly change to snow.

This morning, all models are trending to little to no snow (Pivotal Weather - HRRR)
This morning, all models are trending to little to no snow (Pivotal Weather – HRRR)

Temperatures are expected to hit the freezing point around 8pm tonight. The main concerns for tonight are the dropping temperatures and winds. The accumulated rain may freeze over when the colder temperatures hit, make sure to be aware of slick conditions on the roads if you’re out tonight. As of now, a tenth of an inch is expected.

Try to be home and off the roads before 8 pm, as road conditions may become slick and hazardous. After the front moves through, wind chill values will plummet into the low-teens.

Cold Temps on Tuesday

Tuesday at 6 am Wind Chill values (Pivotal Weather - HRRR)
Tuesday at 6 am Wind Chill values (Pivotal Weather – HRRR)

The wind chills from tonight will carry into tomorrow morning. Tuesday’s morning commute is going to be a frigid one. Make sure to put on that extra layer (or 2) of clothing and break out the gloves and hat. Try to have minimal skin exposure when outside. Winds are expected to gust around 20 miles per hour.┬áThe combined temperature and winds will make the air feel much colder and miserable.

The perfect attire for an event like this (giphy)
The perfect attire for an event like this (giphy)

The highest temperature is expected to reach into the high-20s and the sun will be covered by clouds for most of the day. As the night approaches, temperatures will drop into the low-teens. The winds will continue to gust, which will continue the frigid wind chill values.

Another look at the forecast from this morning (Monday) to Wednesday morning (NWS)
Another look at the forecast for the beginning of the week. (NWS)

Flurries may start to fall before midnight, however, not much is expected until Wednesday morning.

Wednesday- Cold and Snowy Start

The flurries from Tuesday night will transition to heavier snowfall by Wednesday morning. Not much snow is expected and will not be the main concern for Wednesday. Sub-zero wind chill values are expected by mid-morning.

NAM is showing Wind Chill values dropping to -4! (Pivotal Weather)
NAM is showing Wind Chill values dropping to -4! (Pivotal Weather)

The rest of Wednesday will be clear and partly sunny. Make sure to bundle up, the frigid weather will be here to stay into the night. Temperatures will approach 0┬░ Wednesday night.

Snowy System Tonight Followed by Frigid Temps

Overall, a snowy start to a frigid week. Try to stay indoors as much as possible and load up on those layers. Also, watch for slick roads as temperatures begin to drop. Thursday and Friday are looking cold and clear as a high-pressure system will be moving into the area.

If I could talk to the Polar Vortex (giphy)
If I could talk to the Polar Vortex (giphy)

What is a Polar Vortex?

A visual on the Polar Vortex (NOAA)
A visual on the Polar Vortex (NOAA)

The Polar vortex is a mass of Arctic air contained by the polar jet stream. During the winter, the jet stream takes on a wavy pattern and can occasionally dip more into the southern regions on the United States.

The light pink/purple values signify arctic values dipping into the eastern half of the US (Pivotal Weather - GEFS)
The light pink/purple values signify arctic values dipping into the Eastern half of the US (Pivotal Weather – GEFS)

The low-pressure system marks the center of a wave filled with frigid air. The wave is tracking relatively south this time around and bringing the polar air with it. The gif above tracks the wave movement from today into Thursday morning.

Stay Warm!

That is all I have for you all today. Make sure to keep updated with any changing weather conditions, especially for tonight’s system.

Very warm & breezy today; minor snow event expected tonight.Details in this morning's Final Finish weather update:

Posted by Landon Hampton on Monday, January 28, 2019

I hope you all have a great day and make sure to follow @wxornotBG on Twitter and come back tomorrow for an updated forecast!