This is the 478th most frequent Norwegian word.
nordlige
"Northern."
In this instance, 'nordlige' describes the origin or orientation of the 'vindforhold'.
Nordlige vindforhold dominerer i denne årstiden.
Northern wind conditions dominate this season.
Here, 'nordlige' qualifies 'områdene' to describe their geographical location.
Dyrelivet i de nordlige områdene er svært variert.
The wildlife in the northern areas is very diverse.
Here, 'nordlige' is an adjective modifying 'delen' to specify which part of the country is being referred to.