It now is very likely that a full fledged paralyzing blizzard capable of shutting down Washington D.C., Philadelphia, and New York City will hit the Northeast.

Computer runs Friday afternoon have made a dramatic shift with snow amounts and their northern extent.

The storm is what we call a "BOMB, " better known as bombogenesis or rapidly intensifying storm, and will send intense snow bands propagating much further inland than models have been indicating.

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This is a very late to the game change, but this is how it is shaping up.

Blinding snow in Washington. D.C. will spread into Philly Friday evening and snow will rapidly accumulate. Snow rates of 1 to 3 inches per hour will take place very late Friday through Saturday.

Thundersnow (a thunderstorm with snow) will take place up and down the I-95 corridor and surrounding areas.

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Major coastal flooding, power outages, stranded vehicles, tree limbs will snap, and some trees will topple as well.

This is an extremely serious and life threatening storm. Heed the warnings, and stay off the roads, cease travel as soon as possible.

Upgraded snow amounts:

Washington D.C.: 24-30 inches

Philly: 18-24 inches

New York City: 12 inches

Long Island and New Jersey: more than 12 inches, except along the immediate coast.