scope:

Scope and Applicability.

Adverse or severe weather poses a significant threat to military personnel, ships, aircraft and installations. Adequate and timely weather warnings, combined with prompt and effective action by commanders, will minimize loss, damage, and help ensure the safety of personnel. The weather warning criteria and terminology defined in this instruction are applicable at all Navy and Marine Corps activities and commands.

Purpose.

To promulgate information on Department of Defense (DoD) and the National Weather Service (NWS) terminology and severe weather criteria, used for determining and setting conditions of readiness for United States Navy (USN) and United States Marine Corps (USMC) activities and commands in advance of adverse or severe weather.