National Weather Service United States Department of Commerce

Heavy Snow Expected Today in the Intermountain West; Rainy in the Mid-South

A winter storm will continue to bring heavy snowfall and gusty winds to the Intermountain West and Northern Great Basin today. Strong winds will affect southern California as well. Elsewhere, showers and thunderstorms will produce heavy rainfall from the Mid Mississippi Valley into the Ohio Valley into early next week. The flooding threat will increase over the weekend. Read More >

NOAA Weather Wire Service

The National Weather Service (NWS) enterprise National Oceanic and Atmospheric Administration (NOAA) Weather Wire Service (NWWS) provides television and radio broadcasters, emergency managers, commercial / private alerting services, and the general public the fastest receipt of current weather information, alerts and warnings sent in text format from the local NWS Weather Forecast Offices and National Centers.

Sign up for NWWS-Open Interface Account here.


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


NWWS Satellite Service, SBN/NOAAPORT  Channel 201 on Galaxy-28 Operational
NWWS-Open Interface(NWWS-OI) Primary server  Stand-By
NWWS-OI  Backup server Operational
Next Server Transition  February 22, 2021

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) (, 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



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