National Weather Service United States Department of Commerce

Heat Across The Southern U.S.; Storms And Heavy Rain in Central U.S.

The early-season heat across portions of the Southern U.S. will continue for much of this week with more potential record high temperatures. On Tuesday, expect 90s and triple digits from the southern Plains into parts of the Lower Mississippi Valley. Also on Tuesday, strong to severe thunderstorms and locally heavy rainfall will be possible from the central Plains into the Mid Mississippi Valley. Read More >

EMWIN Notice Archive


Effective 2018/03/29

On April 7, 2018 from 11:00am UTC until April 8, 01:00AM there will be an interruption of the EMWIN FTP service. The number EMWIN ByteBlaster servers will also be reduced, but users will still be able to access other servers on the network. This interruption is due to network infrastructure maintenance and in the event of Critical Weather Days may be rescheduled.


Effective 2018/03/26

DM041801 GOES-14/15 EMWIN Satellite Broadcast Disruption Commencing 1200 UTC, April 3, 2018
Effective: 2018/04/03 1200Z UTC

NOXX10 KWBC 021030
Data Management Message 04-18.01

To: Emergency Managers Weather Information Network (EMWIN)

From: GISC/RTH Washington Data Management 

Subject: GOES-14/15 EMWIN Satellite Broadcast Disruption Commencing
         1200 UTC, April 3, 2018

The NOAA Wallops Command & Data Acquisition Station (WCDAS), which 
provides the EMWIN data uplink service to the GOES-14 and 15 
satellites, will undergo a planned 48 to 60 hour facility power 
outage commencing 1200 UTC, April 3, 2018.  

Date/Time of Initial Impact:  April 3, 2018  1200 UTC

Date/Time of Expected End:  April 5, 2018  2359 UTC

Length of Outage: 48 to 60 Hours

The outage is required to perform maintenance and repairs on the 
station's electrical power system. The power outage can be 
expected to last as long as three days, although the goal is to 
complete the work within two days.  

It is likely there will be an outage of the 1692.7 MHz Emergency 
Managers Weather Information Network (EMWIN) broadcast for the 
duration that WCDAS is down for both GOES-14 and 15. If there is 
an outage, users are asked to utilize GOES-15’s LRIT broadcast, 
the NWS FTP or ByteBlaster services for EMWIN continuity of 

If a ‘Critical Weather Day’ is identified to take place during this
maintenance event, the event will be rescheduled for April 10, 2018. 

Information contained in this bulletin is posted on 

Further information is available from:
ESPC Operations at at 301-817-3880
NWS EMWIN Support at

Data Management 
NCO Production Management Branch College Park 
GISC/RTH Washington Sends 




- NOXX10 KWBC 031352
Data Mgt Message 10-16.01

On 11 October 2016 beginning at 10:00 EST (14:00 UTC), the
RTH-Washington Emergency Managers Weather Information Network (EMWIN)
is being upgraded for improved efficiency.

Click for more Information



- NOXX10 KWBC 050045

The NOAA Wallops Command and Data Acquisition Station (WCDAS) has scheduled a power outage forWednesday, May 11, 2016, to performcritical maintenance on the power system. 

Click for more Information



- NOXX10 KWBC 071950 COR


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