A two-character code to describe each measurement taken at a weather station.

Contain a fire along a flank of the fire and begin containing it across the head. Refers to ground or air attack.

Wind blowing from water to land.

A mobile weather data collection and forecasting system consisting of a communications module, weather observing module, and data interigation module. Used by incident meteorologists on an incident.

Incident Position standards are a component of NWCG standards. They enable consistent and uniform performance by personnel mobilized by position under NIMS-ICS principles. Incident position standards include incident position descriptions (duties and responsibilities) and position qualification requirements for training, experience, physical fitness, and position currency.

An area representative of the major fire problems on a protection unit. Base fuel model and slope class are chosen from the base area.

Tree that has been uprooted or broken off by wind.

Angled or horizontal char or scorch pattern created on standing fuels as fire burns up to, past and beyond, indicating the direction of fire progression at that point. One of the 11 NWCG categories of fire pattern indicators.

The side of an object opposite the oncoming fire and therefore shielded from the oncoming fire by the object itself.

Velocity of an aircraft in its flight path relative to the air through which it is moving.