NOUS41 KWBC 301739 



Public Information Notice

National Weather Service Headquarters Washington DC

140 PM EDT WED May 30 2012


To:       Subscribers:

          -Family of Services

          -NOAA Weather Wire Service

          -Emergency Managers Weather Information Network


          Other NWS partners and NWS employees


From:     Michael J. Szkil

          Chief, Awareness Branch

          Performance and Awareness Division

          Office of Climate, Water, and Weather Services


Subject:  Critical Warnings Coming to Wireless Emergency Alerts


Starting today, NWS warnings, watches, advisories, and special

statements will be pushed to the Federal Emergency Management

Agency (FEMA) Integrated Public Alerts and Warning System

(IPAWS), in Common Alerting Protocol (CAP) version 1.2 format. 

CAP is an industry standard for the exchange of emergency alert



On the week of June 18, 2012, FEMA plans to enable the capability

for NWS warnings to pass through to the Commercial Mobile Alert

System (CMAS), also known as the Wireless Emergency Alerts (WEA). 

NWS CAP messages will be formatted to trigger a warning

notification on WEA-capable devices for the following NWS warning



- Tsunami Warnings

- Tornado Warnings

- Flash Flood Warnings

- Hurricane and Typhoon Warnings

- Extreme Wind Warnings

- Blizzard and Ice Storm Warnings

- Dust Storm Warnings


The NWS push of CAP to IPAWS is an initial capability. 

Modifications and improvements are currently planned for the

summer of 2012 to maximize performance and reliability. Plans

also include enabling NWS CAP messages to pass through IPAWS to

the Emergency Alert System (EAS) in late summer 2012.


For information about IPAWS, please visit


Wireless carriers began rolling out the WEA service across the

nation on April 7, 2012.  All major wireless carriers and

hundreds of smaller carriers are taking part in WEA on a

voluntary basis.  For more information about WEA and a list of

participating carriers, see


For information about EAS, please visit


If you have any questions or comments about NWS participation in

IPAWS, please contact:


Mike Gerber

Emerging Dissemination Technologies Program Lead

NOAA/National Weather Service

Office of Climate, Water, and Weather Services

Silver Spring, MD

301-713-0090 x170



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