AtHoc emergency notification available for inclement weather information

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Members of the workforce are encouraged to use AtHoc, an interactive warning system that allows senior leaders to inform base personnel of urgent information such as base closures or delayed openings.

The system notifies users via phone call, text message or email. Messages are sent through the same mass alert system that provides pop-up notifications to personnel through desktop workstations.

Personnel interested in utilizing AtHoc should input or update their information in the system by providing home, cell phone and emergency contact numbers and email addresses, according to their communication preferences. These individuals will normally be notified between 4 and 5 a.m. in the event of extreme weather.

Instructions for adding or updating contact information in the AtHoc system:

1. On a government computer, click the AtHoc icon (“white globe” on the right side of the taskbar) and select "Access Self Service."

2. A secure Internet Explorer page will appear. Here users can update their personal information.

Additionally, in this window, personnel can “Opt-In” and select choices such as unit commander or facility manager to receive specific notifications targeted to those personnel. Individuals can also “Opt-Out” of specific notifications including weather advisories and watches, wind warnings or heat stress conditions.

3. Be advised that each field in which data is provided can be used for notifications, per the commander's discretion. Participants requesting text message alerts should know that they will not be reimbursed for any text messaging charges incurred.

4. Click the Save button in the upper right corner when finished. Please note that work email address and after hours phone contact number are mandatory in order to update your information.

In addition to AtHoc, base personnel have other options to quickly find out information regarding emergencies, inclement weather delays or closures. Those include the COLD line at 781-225-COLD (2653), Hanscom public website at or Hanscom’s official Facebook page.

For further information about AtHoc, email the Command Post at

Click here to return to the Inclement Weather Information page.

(Updated December 2021)