You are highly unlikely to be suffering 3 miles visibility in haze if there
are thunderstorms around. Thunderstorms imply unstable air, while haze
implies stable air. The two are usually mutually exclusive.


See it all the time here. OK, not three miles, more like five or six, but
still summer haze with thunderstorms popping up. [...]

This disagreement may be explained by unintentional conflation of
haze (HZ) and mist (BR). Only the former is rare in unstable air.


- FChE