NWWS transition from PRIMARY to BACKUP is scheduled for February 22, 2021.  Continue to monitor this page should NWS declare a critical weather day (CWD) which could delay the scheduled server transition.

Transition will begin at 10:00 EST (1500Z). and may take up to an hour to end Open-Interface sessions; thereafter there may be a 10-90 minute data outage as systems synchronize.  

NWS has updated from TLS1.1 to TLS 1.2 for encryption.

IP Address change coming March 2, 2021 see Service Change Notice (SCN).

Current Status

Note: This status is only updated during normal NWS business hours (M-F)  Eastern Standard Time (EST)

Monthly server transitions occur on the 2nd full week on the month (generally on Monday and re-transitioning back on Wednesday) beginning at 1500 Zulu (10 am EST on each day). There may be a temporary product outage lasting 10-90 minutes as software patches and security updates are verified and databases synchronize.  Actual day and time of transition may be affected by Critical Weather Day (CWD) declaration(s) (https://www.nco.ncep.noaa.gov/pmb/cwd/), other scheduled NWS system/priority changes, or unscheduled emergencies; making the transition a week earlier or several weeks later than posted.

Please restart your systems after a scheduled server transition to ensure your account is properly connected to the NWWS-OI chatroom.
 

Last Updated 22 February, 2021

Documents

• Welcome Letter


• Mission


• History


• NWWS Description


• Hours of Operation / Availability


• Message Formats


• List of Products


• User System Requirements


• NWWS-OI Set-up Information


• NWWS Satellite (PID201) Configuration


• Other Product sites


• User Options for Alerts and Warnings


• Contacts for Weather Information