A variety terms may be used to describe how far one can see at a given moment.
|
Limit of Visibility
|
Descriptive Term
|
Scale
|
|
50 yards
|
dense fog
|
0
|
|
300 yards
|
thick fog
|
1
|
|
600 yards
|
fog
|
2
|
|
0.5 miles
|
moderate fog
|
3
|
|
1 mile
|
thin fog or mist
|
4
|
|
2 miles
|
poor visibility or haze
|
5
|
|
5 miles
|
moderate visibility
|
6
|
|
10 miles
|
good visibility
|
7
|
|
30 miles
|
very good visibility
|
8
|
|
> 30 miles
|
exceptional visibility
|
9
|
