NOUS41 KWBC 251635 AAA



Public Information Statement 17-33 Updated

National Weather Service Headquarters Washington DC

1235 PM EDT Wed Oct 25 2017


To:      Subscribers:

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network


         Other NWS partners and employees


From:    Kevin Stone

         Acting Chief, Aviation and Space Weather

           Services Branch        


SUBJECT: Updated: Soliciting public comments on the Extended

         Traffic Flow Management (TFM) Convective Forecast (TCF)

         experimental product through May 15, 2018


Updated the Product Description Document below:


Effective 1930 UTC October 25, 2017, the NWS Aviation Weather

Center (AWC) in Kansas City, MO, will begin production of the

experimental Extended TCF. The TCF is a high confidence

graphical representation of forecasted convection meeting

specific criteria of coverage, intensity, and echo top height.

The NWS is soliciting public comments on this experimental

product through May 15, 2018.


The experimental Extended TCF graphics are produced every 

2 hours, 24 hours a day, and valid at 10-, 12-, 14-, 16-, 18-,

20-, 22-, and 24-hours after issuance time. The TCF domain is

the Flight Information Regions (FIR) covering the 48 contiguous

states and adjacent coastal waters.


The experimental Extended TCF is used by air traffic management

decision makers in support of convective weather mitigation

strategies within the National Airspace System. It is designed

to meet the needs of TFM decision makers at the Air Traffic

Control System Command Center, FAA Air Route Traffic Control

Center Traffic Management Units, and airline and corporate

Flight Operations Centers. The Extended TCF issuance supports

the FAA's Strategic Planning Webinar.


The experimental Extended TCF provides the meteorological

information necessary to meet the needs of the FAA pursuant to

Title 49 United States Code Section 44720.


Experimental Extended TCF dissemination:

1) Posted on the Aviation Weather Center website AFTER October



2) NWS Telecommunications Gateway


The Product Description Document can be found at:


NWS is accepting comments on these changes through May 15, 2018,

via the online survey below:


For technical questions regarding this notice, please contact:


Debra Blondin

Domestic Operations Branch Chief

Aviation Weather Center, Kansas City, MO

Phone: 816-584-7207


For policy questions regarding this notice, please contact:


Kevin Stone


NWS Headquarters Silver Spring, MD

Phone: 301-427-9363


National Public Information Statements are online at: