Nocturnal breeze touches down briefly into Boston Harbor.

We anticipated this might happen the night before as the upper level plots were showing significant early flow.    Sometimes we can see the land breezes tap into this flow early on then soon as the sun comes up, the flow mixes out.    Check out Deer Island this morning:

Boston 6am

 

You can see the winds were very short lived and dropped soon as the sun started to heat up the surface:

 

 

Deer island graph

 

Here are the observed skewT’s for Chatham, MA this morning showing the stronger winds just off the surface:

skewT chat

 

Matt Corey