Giant green clouds of pollen sweep through Mass. communities

DEDHAM, Mass. — It wasn’t smoke or fog that you were seeing. Giant clouds of green pollen swept through some Massachusetts communities on Tuesday.

A backdoor cold front brought an abrupt wind shift and a temperature dip, sending clouds of pollen into the sky over the Greater Boston area.

The gusty wind caused temperatures in Boston to drop about 20 degrees in 10 seconds, according to the National Weather Service.

A Boston 25 News roof camera captured the moment a green wave of pollen rolled through the Dedham area between 9 a.m. and 10 a.m.

A photo taken in Hudson showed a hazy green layer of pollen overtaking the horizon.

The pollen will be washed away when rounds of rain and thunderstorms pass through Wednesday.

This is a developing story. Check back for updates as more information becomes available.

Download the FREE Boston 25 News app for breaking news alerts.

Follow Boston 25 News on Facebook and Twitter. | Watch Boston 25 News NOW