National Weather Service United States Department of Commerce

Critical Fire Weather Conditions For Much of the West; Summer-Like Warmth for Parts of the Central and Southwest U.S.

Unsettled conditions in the Southeast, Mid Atlantic, and Pacific Northwest will gradually improve this weekend. Meanwhile, critical fire weather conditions are expected to persist over parts of the Rockies, Plains, and Great Basin. Widespread above normal temperatures are anticipated over much of the Central and Southwest U.S. 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.


There will be a 3-hour period from 2:00am – 5:00am EDT (0600Z-0900Z) on Monday, September 28, 2020 where NWS products will be affected due to planned maintenance on a major NWS enterprise system. A limited number of products will be available over NWWS and over SBN/NOAAPORT. Products not distributed will be held and issued after completion of the maintenance period.

Local distribution of weather information, advisories, alerts and warnings over the NOAA Weather Radio All Hazards network will be unaffected.

Note, this scheduled maintenance event may change if a Critical Weather Day is declared.

Transition will begin at 10:00 EDT (1400Z). There may be a 10-90 minute data outage as systems synchronize.

Current Status


NWWS Satellite Service, SBN/NOAAPORT  Channel 201 on Galaxy-28 Operational
NWWS-Open Interface(NWWS-OI) Primary server  Operational
NWWS-OI  Backup server Stand-By
Next Server Transition  October 12, 2020

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

Monthly server transitions occur on the 2nd full week on the month (generally on Monday and re-transitioning back on Wednesday) beginning at 1400 Zulu (10 am EDT 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.

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




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NOAA Weather Radio (162.400 MHz – 162.550 MHz)


NOAA Weather Wire Service (NWWS)
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EMWIN (GOES East/West)
SBN/NOAAPORT PID 101-108 (all NWS products)
SBN/NOAAPORT PID 201 (NWWS products only)


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Commercial Weather applications – (Multi-lingual alerts possible)
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