Thursday, March 28, 2013

Powerhouse North Atlantic Storm Keeping Your Wind Up

On a global satellite shot  the large oceanic storm in the North Atlantic that's helping bring a bit of wind to the East Coast may not look terribly impressive but it is taking up a large chunk of real estate -- with a piece of energy associated with the storm pushing onshore into Europe while the core of low pressure with the main circulation center sits to the east of Newfoundland and south of Greenland.

The pressure gradient between this low, which has a minimum pressure of under 960 mb, and the high over the Great Lakes is such that we've been breezy to windy at times over the past couple of days....despite the low being centered near 40 degrees West.  However, its size is rather impressive given its taken up a large portion of the North Atlantic.  You can see the pressure chart below showing the size of the storm from 40 W on east towards Europe.

This storm will gradually nudge eastward and weaken through the next couple of days, which will allow Easter's showers to move on in.  Its movement has been relatively slow the past couple of days due to a strong expanse of high pressure over Greenland as well as over Western Africa, which has kept the storm effectively spinning in place.