NOUS41 KWBC 101200



Technical Implementation Notice 12-46

National Weather Service Headquarters Washington DC

800 AM EDT Wed Oct 9 2012


TO:        National Weather Service (NWS) Offices

           Federal Aviation Administration (FAA) Customers

           Family of Services (FOS) Subscribers

           Other Customers of NWS Aviation Forecasts


FROM:      Cynthia Abelman

           Chief, Aviation Services Branch


SUBJECT:   Changes to Collaborative Convective Forecast

           Product (CCFP) valid times effective March 1, 2013


NOTE:      The following changes have no impact on NOAA Weather     

           Wire Service subscribers.


Effective March 1, 2013, 0800 Coordinated Universal Time

(UTC), the NWS Aviation Weather Center (AWC) in Kansas City,

MO, will adjust the valid times of the Collaborative

Convective Forecast Product. On March 1, 2013 CCFP will change

from the current valid times of 2 hours, 4 hours, and 6 hours

from issuance time, to 4 hours, 6 hours, and 8 hours from

issuance time.


The Collaborative Convective Forecast Product (CCFP) is a

forecast of expected convective weather at 4-, 6-, and 8-hours

after issuance time, produced through a collaborative process

involving NWS meteorologists at the AWC and Center Weather

Service Units, and airline industry meteorologists.  It is

issued every 2 hours. The CCFP exists as direct support to the

strategic, system-wide planning of FAA Traffic Flow Management

intended to reduce traffic flow disruptions that may be caused

by convective weather. The CCFP begins March 1 and runs

through October 31 each year, covering the conterminous 

48 United States and adjacent coastal waters.


CCFP is issued as three separate ASCII text files under

distinct World Meteorological Organization (WMO) headers.


Current issued CCFP WMO Headers:


FAUS27 KKCI 2 Hour Forecast

FAUS28 KKCI 4 Hour Forecast

FAUS29 KKCI 6 Hour Forecast


On March 1, 2013, NWS will cease issuance of the FAUS27 KKCI 2

hour forecast, and begin issuance of the FAUS30 KKCI 8 hour

forecast. NWS will continue the FAUS28 KKCI 4 Hour Forecast

and FAUS29 KKCI 6 Hour Forecast.


Effective March 1, 2013 issued CCFP WMO Headers:


FAUS28 KKCI 4 Hour Forecast

FAUS29 KKCI 6 Hour Forecast

FAUS30 KKCI 8 hour Forecast


CCFP graphics are rendered by the NWS and viewable at:


Additional information on CCFP can be found at:


If you have any questions regarding these changes to CCFP,



M. Pat Murphy

Warning Coordination Meteorologist

Aviation Weather Center

Kansas City, MO 64153



National Technical Implementation Notices are online at: