Meteorologist Mark’s Wx Blog for Thurs., Jan 7

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Headlines 

Accumulating snowfall expected tonight

A chilly weekend

Another shot of snow for Monday

Meteorologist Mark’s Wx Vlog 

48-Hour WX

Seven-Day Forecast

Daily Forecast Summary

Today: Rain and snow mix possible by evening. Precip turns to light snow overnight, with light accumulation possible.

Friday: Mainly morning snow, then mostly cloudy.

Saturday & Sunday: Partly cloudy and cold.

Monday: A chance for light snow.

Tuesday & Wednesday: Partly cloudy and chilly.

Meteorologist Mark’s Wx Thoughts (New!)

As is the case in nearly every snow forecast for our area over the past three years, models are trying to be shy about forecasting snow amounts as we get closer to our weather event. Yesterday, the models were being bullish, predicting up to three inches of snow for us. That, too, has been typical of model data for our area over the past few years. So, everyone jumps on the big snow bandwagon 48 hours out, only to try to squiggle of that wagon as we get about 12 hours out (ha). My confidence is still high that we will see snow but my confidence in more than an inch is not high enough to forecast anything more than that. Some of the data is even keeping all the moisture well to our south. With all that being said, if anything changes with this forecast I will certainly let you know in a special update.

As we get closer to Monday, guidance is beginning to really hone in on Monday for snow chances. That could be a more decent snowfall. It just depends on the track of the Gulf low. Tomorrow I’ll start using the snow scale for that event if current trends continue.

Wx Threats for the Next 7 Days

Accumulating snowfall is likely tonight. The threat for that will begin as soon as it gets dark. Light snow will fall through the night, possibly accumulating to around one inch for much of the plateau. Isolated locations could pick up a bit more. This could be enough snow to cause some slick roads.

Another system will affect the area Monday with another chance for light snow. Models had trended drier and farther south with this system but have now begun to trend better for us to get a little snow. If trends continue, I’ll begin using the “snow scale” soon to highlight the threat.

Meteorologist Mark’s Snow Scale

On This Day in Wx History

1988- A snowstorm brings widespread accumulation to Middle Tennessee. Some snowfall totals include Lawrenceburg, with 10″, Nashville, 8.1″, and Crossville, 6″.

2014- A bitterly cold Arctic airmass brings light snow and record cold temperatures to Middle Tennessee. The NWS Nashville office in Old Hickory sees a low of -1°, while Crossville drops down to -9°. Fall Creek Falls has a low of -8° and a high of only 8°.

Almanac

Yesterday’s National Temperature Extremes

High: 83° at Kingsville, Pharr & Harlingen, Texas 

Low: -23° at Peter Sinks, Utah

Today’s National Wx Hazards

A rain & snow mix will affect much of the Midsouth today, with little or no consequence. Accumulating snowfall can be found across the Northwest, with freezing rain being the primary threat for eastern Montana and northwest North Dakota.

Tomorrow’s National Wx Hazards

Accumulating will impact higher elevations of the southern Appalachians. Much deeper snows will fall across parts of the northern plains and the mountains of the Pacific Northwest.

 Weather Shots

I got out and snapped these pics yesterday. What a beautiful sky! The picture on the left was the sunrise, while the picture on the right was the sunset.

NASA Nerdology 

During this week in 1972, President Nixon approved the Space Shuttle program. He’s seen here discussing the program with NASA Administrator James Fletcher. What an exciting time we were about to embark upon! As sad as it was to see the shuttle program go, we can look forward to even more exciting things to come!

You all have a great day!

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