East coast winter cyclone 

Posted: 9:41 am Wednesday, January 3rd, 2018

By Kirk Mellish

The terms “meteorological bomb”, “bombogenesis” or ‘bomb cyclone’ are NOT new to the weather forecasting community but they may be new to the public and to some news people. Just like “Polar Vortex” was NEW to many, it was OLD to us forecasters.

You can look it or ANY weather term up here at the AMS Glossary.

I actually worked along side the research scientist who coined the term back in the early 1980s when I was at the University of Illinois at their meteorology and broadcast journalism departments.

It is called a “bomb cyclone” or “meteorological bomb” because it is a low pressure storm system that undergoes EXPLOSIVE STRENGTHENING, or rapid deepening often creating very low pressure readings and hurricane force winds. This is common in a Nor’easter snowstorm.

A powerful nor’easter is expected to bring snow, ice, rain, very strong winds, and rough surf to coastal locations of the Southeast U.S., Middle Atlantic, Northeast, and into New England Wednesday into Thursday. The potential exists for dangerous travel, scattered power outages, tidal flooding, and very cold wind chills as per the WPC:

Key Messages: East Coast Winter Storm

1. This winter storm is forecast to bring the potential for a mix of
freezing rain/sleet/snow from portions of northern Florida to North
Carolina, and snowfall northward along portions of the Mid-Atlantic into
northern New England. Blizzard conditions are possible across portions of
eastern New England late Thursday.

2. If this winter storm tracks closer to the coast, it could mean more
snow while a track farther east could mean less snow.

3. This system has the potential to produce strong, damaging winds
possibly resulting in downed trees and/or power outages.

4. Minor to moderate coastal flooding/erosion is possible due to a
combination of high tides and wave action, especially Thursday afternoon,
January 4.

5. Winter Storm Watches and Warnings are in effect from north central
Florida northward through eastern New England.

TODAY:

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THURSDAY AM:

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FRIDAY AM:

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The arctic blast brings record lows (circled) down into Florida to end the week. 80% of the lower 48 will be under 32 at some point over the next 7 days, that’s 234 million people.

I’ve been tweeting about this storm on Twitter @MellishMeterWSB.

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