The 25th Operational Weather Squadron (25 OWS), based out of Davis-Monthan AFB, AZ, is the Squadron responsible for the Western United States; the current states in the Area of Responsibility (AoR) are Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.

The 25th Operational Weather Squadron is responsible for producing and disseminating mission planning and execution weather analyses, forecasts, and briefings for Air Force, Army, Navy, Marines, Guard, Reserve, USSTRATCOM, and USNORTHCOM forces operating at 68 installations/sites in an 11 state region of the Western United States.

The squadron activated at Patterson Field, Ohio, and was assigned to the Army Air Forces Weather Wing four days later.

To validate its cold weather concepts the squadron participated in joint training activities such as Exercise SNOW STORM in upstate New York during the winter of 1953.

In addition to providing meteorological services to Twelfth Air Force bases, the 25th supported U.S. Strike Command exercises, contingencies, and special missions.

A Staff Weather Officer cell was established in its place to support Twelfth Air Force.