Odd meso-low spinning off South Florida

National Weather Service forecasters took note this afternoon of an odd mesoscale low spinning off the east coast of South Florida.

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satellite image of mesoscale low taken at 1:30 p.m.

The curlicue system is keeping wind from turning to the  northeast as expected and is making the forecast “tricky.”

Steven Ippoliti, a meteorologist with the National Weather Service in Miami, said the low was probably caused when a stalled boundary over Palm Beach County interacted with a land breeze blowing toward the ocean.

Check The Palm Beach Post radar map.

“It’s over the Gulf Stream so it’s a moisture source for it,” Ippoliti said.

The little system isn’t expected to do much but produce some showers over the water, he said.

A mesoscale system means it is intermediate in size, not like the sweeping synoptic scale cold fronts that can stretch the width of the country.

The stalled frontal boundary is part of a sweeping cold front that isn’t expected to cool South Florida down much.

But North Florida is chilly. Jacksonville is just about 50 degrees – 22 degrees colder than Palm Beach International Airport.

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