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Meteorologist Mark’s Blog for Sat., Dec. 19


Rain develops overnight

A pleasant start to Christmas week

Skies looking good for Jupiter-Saturn conjuncture Monday night (aka Christmas Star)

Turning much colder for Christmas

Snowflakes possible for Christmas

Meteorologist Mark’s Vlog in a Flash

48-Hour WX

Seven-Day Forecast

Daily Forecast Summary

Today: Mostly cloudy. Rain showers develop overnight.

Sunday: Morning rain showers, followed by mostly cloudy skies.

Monday – Tuesday: Partly cloudy. Mild and pleasant.

Wednesday: Winds increase and become gusty. Rain and snow develop overnight.

Thursday: Rain and snow turn to snow. Light accumulation possible.

Christmas Day: Snow flurries. Cold.


A rain and snow mix is expected to develop Wednesday night and Thursday morning. That mix may turn to light snow for Christmas Eve and Christmas Eve night. Light accumulations are possible. Stay tuned!

Meteorologist Mark’s Snow Scale

On This Day in Wx History

1924- A pleasant late autumn warm spell comes to an abrupt halt, as a strong cold front sweeps through the Midstate. The temperature at Nashville drops from a high of 67 degrees to 17 degrees by midnight!


Yesterday’s National Temperature Extremes

High: 82° at both Rio Grande Village & Kingsville Nas, Texas 

Low: -18° at Jackman, Maine

Today’s National Wx Hazards

Snowflakes are flying once again across the northern Appalachians and Great Lakes region. More snow can be found from the northern Rockies to northern Colorado.

Tomorrow’s National Wx Hazards

Lots of snowflakes are flying across New England, the Upper Midwest, and northern Rockies. A rain and snow mix can be found across much of the Appalachian Mountains.

 Weather Shots

The NWS Nashville shared this beautiful sunrise picture from this morning. Absolutely beautiful!

NASA Nerdology 

The weather is still looking good for the conjuncture of Jupiter and Saturn Monday night! Two little “stars” will seemingly become one in our early evening sky. After seeing Saturn (the dimmer “star) for all these many months, it will be so weird to see it disappear behind Jupiter. Pretty neat stuff!

You all have a great day!

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1 thought on “Meteorologist Mark’s Blog for Sat., Dec. 19

  1. Mark, I met and talked to you this past fall at a Fairfield Glade event. I really enjoy your daily emails. In our discussions, you confirmed to me the biases in the GFS of being wet dispite recent improvements in that model’s resolution. A forecast discussion would be helpful for us amateurs attempting to get a handle on the intuitive side of forecasting. Again, thank you so much for your daily forecasts.

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