AI Assisted
Definition
A NOTAM contraction used to indicate that an event, restriction, or condition applies inside a specified area, distance, or time period.
Plain English
A short way of saying 'inside' or 'no more than' — used in NOTAMs to show the boundary of where or when something applies.
Context Anchor
Seen in NOTAMs and FAA abbreviation lists when space is limited and short contractions are used.
Why Pilots Care
NOTAMs pack a lot of information into very little space. Reading 'WI' correctly is essential for understanding the area or time covered by a hazard, closure, or restriction.
Intuition Check
Do not read WI as “near.” In this context, WI means inside the stated limit or boundary.
Example Sentence 1
The NOTAM warned of unmarked cranes WI 2 NM of the airport.
Example Sentence 2
Report any traffic WI the traffic pattern.