Winter weather warning

A winter weather system will move across the Chicago area this afternoon and into Wednesday, bringing possible blizzard conditions tomorrow morning.

Despite the predicted weather, Fermilab will very likely remain open. If Fermilab closes, a note will be posted on the homepage,, and information will be submitted to local radio and television stations.

If the laboratory remains open, an employee may choose not to come to work because of inclement weather. Employees who choose not to attend work must notify their supervisors. The day will be counted as vacation time or leave without pay. This option allows employees to use their discretion in regard to their safety and family needs without being penalized during heavy snow or dangerous conditions.

If the laboratory is open, employees arriving up to three hours late due to inclement weather will be paid for the full day, subject to supervisory approval.

Read the complete Inclement Weather and Snow Policy for details.

The National Weather Service website,, is the best source for the latest weather information.

And remember, whatever the weather, please drive carefully.