The moon will be just 225,000 miles away from earth.
"If you were to have a picture of your big, bright supermoon and a normal moon, it would look bigger and brighter if you're able to compare them", Dr Tucker said.
The average distance of the Moon from the Earth is 238,855 miles.
The precise moment of this month's full moon occurred at 4.55 this morning. That orbit is not perfectly circular - it has a slightly elliptical or oval shape - leading to the variation. Under this nomenclature, last month's total lunar eclipse was called a super blood wolf moon.
Now, it's also called the snow moon.
Astronomers don't like the term "supermoon", which was bestowed by an astrologer; the actual scientific name for the event is "perigee'" which means "closest to Earth". The first super blue blood moon was witnessed on January 21.
The visually largest full moon of 2019 will rise in the east near dusk this evening. The Moon, which is also called the February Snow Moon, will be at its brightest later today.
Another one of those is coming our way, with a Supermoon that takes place tonight (February 19, 2019), but this one is a little more special than the others, as this will be the biggest, brightest moon that we will see till 2026. The sun will cover the moon's brightness, so the best time to see the supermoon will be overnight Monday. This occurs when everyday objects like trees and buildings are nearby, and our minds trick us into thinking the moon is closer because of its proximity to the objects in our line of sight. The snowfall averages for the Washington DC area for January and February are almost tied as the snowiest months of the year.
When it comes to the science behind the cosmic phenomenon, according to NASA, a super moon unfolds when the moon's orbit is closest (perigee) to Earth at the same time it is full.
Another supermoon will arrive this week following the celestial event late last month.
Perhaps ironically, our closer-than-usual view of the annual snow moon may be obscured by snow itself. Anyone hoping to catch the best glimpse in France, Spain and Germany, should look at the sky between 6.15 to 7.15pm (GMT+1).
The Irish super snow moon will be it's brightest from 5:10 pm local Irish time and will be visible throughout the night.