NOUS41 KWBC 151225 AAB



Public Information Statement PNS 17-08 Updated

National Weather Service Headquarters Silver Spring MD

825 AM EST Wed Feb 15 2017


To:      Subscribers:

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network


         Other NWS partners and employees


From:    William Bauman

         Chief, Aviation and Space Weather

           Services Branch        


SUBJECT: Updated: Soliciting public comments through

         October 31, 2017, on changes to the legacy Collaborative

         Convective Forecast Product (CCFP).


Updated subject line to correctly identify legacy product name

as Collaborative Convective Forecast Product (CCFP)


Effective 1930 UTC February 15, 2017, the NWS Aviation Weather

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

Traffic Flow Management (TFM) Convective Forecast (TCF). TCF is

a high confidence graphical representation of forecasted

convection meeting specific criteria of coverage, intensity,

and echo top height.


From March 1 through October 31 the TCF will be collaboratively

produced by meteorologists at the AWC in Kansas City and

embedded at the Federal Aviation Administration (FAA) Air

Traffic Control System Command Center (ATCSCC) in Warrenton,

VA, at the Center Weather Service Units (CWSU) embedded at the

FAA’s Air Route Traffic Control Center  (ARTCC), and at various

airlines and authorized organizations. NWS is soliciting public

comments on these changes through October 31, 2017.


The TCF graphics are produced every 2 hours, 24 hours a day,

and valid at 4-, 6-, and 8-hours after issuance time. The TCF

domain is the Flight Information Regions (FIR) covering the 48

contiguous states and adjacent coastal waters. It also includes

the Canadian airspace south of a line from Thunder Bay,

Ontario, to Quebec City, Quebec. The Canadian portion of the

forecast is available from April 1 through September 30.


The TCF is used by air traffic management decision makers in

support of convective weather mitigation strategies within the

National Airspace System. The TCF is designed to meet the needs

of TFM decision makers at the ATCSCC, ARTCC Traffic Management

Units (TMU), and airline and corporate Flight Operations

Centers. The TCF issuance supports the FAA's Strategic Planning 



The Collaborative Convective Forecast Product (CCFP), generated

through October 2014, had been the scheduled Collaborative

Decision Making (CDM) product for over 10 years. The FAA

identified an operational need to supplement the CCFP with an

event-driven, collaborative forecast product; resulting in the

Collaborative Aviation Weather Statement (CAWS) and automated

CDM Convective Forecast Planning guidance.


Over the past two years, the FAA, NWS, and airline industry

conducted an Operational Demonstration of the CAWS and CCFP.

The results of this operational demonstration led to the

evolution of the CCFP requirements. The CCFP is being renamed

as the TCF and replaces the production and dissemination of the

CAWS and CCFP. The TCF provides the meteorological information

necessary to meet the needs of the FAA pursuant to Title 49

United States Code Section 44720.


TCF dissemination:

1) Posted on the AWC website by February 16, 2017:


2) NWS Telecommunications Gateway

3) FAA Traffic Situation Display (TSD)


The Product Description Document can be found at:


NWS is accepting comments on these changes through October 31,

2017, via the online survey below:


For further information, please contact:

Debra Blondin

AWC Domestic Operations Branch Chief

Kansas City, MO

Phone: 816.584.7207



National Public Information Statements are online at: