As nouns the difference between downdraft and macroburst
is that downdraft is a strong, downward air current; an air pocket or air hole while macroburst is (meteorology) a strong downdraft, of over 25 miles in diameter, that can cause damaging winds.
downdraft
English
Alternative forms
* downdraught
Noun
(
en noun)
a strong, downward air current; an air pocket or air hole
macroburst
English
Noun
(
en noun)
(meteorology) A strong downdraft, of over 2.5 miles in diameter, that can cause damaging winds.
See also
* microburst