Meteorologist Mark’s Wx Blog for Tues., Dec. 15

Headlines 

Rain & snow mix develops tonight

Rain & snow mix ends by Wednesday night

New storm system arrives over the weekend

Meteorologist Mark’s Vlog in a Flash

48-Hour WX

Seven-Day Forecast

Daily Forecast Summary

Today: Partly cloudy. Rain & snow mix develops overnight. Little or no snow accumulation expected.

Wednesday: Rain during the day, ending as snow or a rain/snow mix Wednesday evening. Little or no snow accumulation.

Thursday: Partly to mostly cloudy. Cold.

Friday: Partly cloudy.

Saturday & Sunday: Chance of afternoon showers on Saturday, ending Sunday morning.

Monday: Partly cloudy.

Threats

Rain may mix with snow tonight and again Wednesday afternoon/evening, but temperatures are expected to stay warm enough to prevent accumulation.

Meteorologist Mark’s Snow Scale

Confidence remains high that we will see very little to no accumulation from any wintry mix of precip we may see from Tuesday night to Wednesday night.

On This Day in Wx History

1901- A strong cold front ushers in a blast of arctic air. Nashville’s temperature drops to -2 degrees, following the previous day’s high of 42 degrees.

Almanac

Yesterday’s National Temperature Extremes

High: 87° at Homestead Air Force Base, Florida 

Low: -27° at Lake Metigoshe State Park, North Dakota

Today’s National Wx Hazards

Accumulating ice can be found across western North Carolina and northeast Georgia, especially overnight. Farther west, accumulating snowfall will threaten parts of the southern and central plains, as well as the northern Rockies.

Tomorrow’s National Wx Hazards

A powerful winter storm will wreck havoc in the east, with accumulating ice in the purple striped areas and very heavy snowfall in the gray striped areas. Many areas will experience significant ice storm conditions. Within the heavy snowfall threat areas, many folks will see over a foot of snow. Quite the December storm!

 Weather Shots

The NWS always invites folks out to watch a weather balloon launch. Yesterday, the NWS in Great Falls, Montana had a special woodland visitor for the evening weather balloon launch. I don’t know about you, but he looks ready for spring to me!

NASA Nerdology 

NASA launched the Wide-field Infrared Survey Explorer (WISE) 11 years ago this week. This telescope and its four infrared detectors imaged millions of cosmic objects, like the Helix nebula pictured here. The bluish-green and red materials are the expelled remnants of this dying star!

You all have a great day!

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