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Emergency Management


Emergency management is the organization and management of the resources and responsibilities for dealing with all humanitarian aspects of emergencies (prevention, preparedness, response, mitigation, and recovery). The aim is to prevent and reduce the harmful effects of all hazards, including disasters.


Tropical Cyclone Condition of Readiness (TCCOR)

Typhoon Season for CFAY runs from June 1st through October 31st. CFAY's default posture of readiness during Typhoon Season is TCCOR 5. 

Tropical Cyclone Condition of Readiness or TCCOR levels shift as a typhoon approaches. Knowing what each TCCOR stage means can help you better prepare for an approaching storm.

You can receive condition of readiness updates on CFAY's Facebook page, our Base Information Channel 45.1, and Computer Desktop Notification System aka CDNS (registration is required). You can find instructions on how to register for CDNS further down this page. You can also get weather-related information from Naval Oceanography Antisubmarine Warfare Center Yokosuka's website, Weather Channel 45.2, and AFN's Eagle 810.
Don't underestimate typhoon season and get caught off-guard. You are strongly encouraged to strengthen emergency planning at home and at work. Ready Navy has some great resources and information you can use as well as a page dedicated to making an at home emergency kit.

How to Register with Computer Desktop Notification System (CDNS)

CDNS, short for Computer Desktop Notification System, is used by shore commands to provide simultaneous emergency notifications to OneNet computer desktops, as well as home, work and mobile email and telephones. 
CDNS REGISTRATION FORM This form will allow personnel and authorized dependents to be registered in the Fleet Activities Yokosuka Emergency Mass Notification and Warning System. Once filled out please email the form to with the subject line of CDNS Form Excel.
How to access the Self-Service feature for CDNS slideshow


Important Telephone Numbers:

  • On Base Emergency: 911 (On Base DSN Line) / 046 816 0911 (Japanese Cell Phone)
  • CFAY Emergency Operations Center: 243-1706 / 1710 / 1715
  • CFAY Command Duty Officer: 080-7709-5698 (Japanese Cell Phone)

Questions, Issues, Assistance?

  • CFAY Community Information Resource Call Center: 243-9303/9304 Email:


NERV is a disaster app that relays information issued by the Japan Meteorological Agency (JMA). This free app was released on Sept. 1st, 2021 and is recommended by CFAY's Emergency Management team.


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Commander, Navy Region Japan Commander, U.S. Naval Forces Japan   |   PSC 473 Box 12   |   FPO AP, 96349-0001
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