NOUS41 KWBC 051157 AAA

PNSWSH     

 

Public Information Statement Updated

National Weather Service Headquarters Washington DC

757 AM EDT Wed Apr 5 2017

 

To:        Subscribers:

           -NOAA Weather Wire Service

           -Emergency Managers Weather Information Network

           -NOAAPort

           Other NWS Customers, Partners, and Employees

 

From:     William Bauman

          Chief, Aviation and Space Weather Services Branch

 

Subject:  Updated: Soliciting Comments on the Experimental

          Aviation Surface Forecast and Aviation Cloud Forecast

          Graphics through April 30, 2017.

 

Updated to correct survey link:

 

http://www.nws.noaa.gov/survey/nws-survey.php?code=ASFACFGraphics

 

The NWS Aviation Weather Center (AWC) in Kansas City, MO, is

accepting comments on the Experimental Aviation Surface Forecast

and Aviation Cloud Forecast graphics through April 30, 2017.

 

The experimental Aviation Surface Forecast and Aviation Cloud

Forecast graphics are snapshot images derived from a subset of

the aviation weather forecasts valid for the continental United

States (CONUS) and coastal waters used within the Experimental

Graphical Forecasts for Aviation (GFA) interactive web-based

display(which will become operational effective 4/13/17, see

Service Change Notice 17-31:

 

http://www.nws.noaa.gov/om/notification/scn17-31awc_exp_graphics.htm

 

The static images are provided every three hours for one CONUS

projection and nine regional projections with three-hourly

forecasts of Surface (predominant weather, visibility, wind) and

cloud coverage and layer (bases and tops) information out to 18

hours. Details of the forecast graphics can be found in the

Product Description Document (PDD):

 

http://products.weather.gov/PDD/PDD_AviationForecastGraphics_4_17.pdf

 

The Federal Aviation Administration (FAA), pursuant to Title 49

United States Code Section 44720, established requirements for

this weather information and service which is necessary for the

safe and efficient conduct of operations in the National

Airspace System. These graphics provide a low-bandwidth

alternative to the GFA interactive web-based display. The static

images are intended for FAA Flight Service Stations (FSS)

providers, commercial and General Aviation pilots, operators,

briefers and dispatchers with limited Internet access.

 

The Experimental Aviation Surface Forecast and Aviation Cloud

Forecast Graphics can be found at:

 

https://www.AviationWeather.gov/gfa/plot

 

Additionally, these Portable Network Graphics(PNG)graphics will

be available over NOAAPORT/Satellite Broadcast Network. WMO

header information will be as follows:

 

T1T2A1A2ii CCCC

 - CCCC is KKCI (Aviation Weather Center)

 - T1 = Q (Regional Static Graphic)

 - T2 specifies the forecast graphic as follows:

      = I for the Aviation Clouds Forecast Graphic

      = Z for the Aviation Surface Forecast Graphic

 - A1 = T (Northern Hemisphere)

 - A2 specifies the forecast time as follows:

      = B for the 3 hour forecast

      = C for the 6 hour forecast

      = D for the 9 hour forecast

      = E for the 12 hour forecast

      = F for the 15 hour forecast

      = G for the 18 hour forecast

 - When T2 = I, ii specifies the regional domain of the Aviation

Clouds Forecast Graphic as follows:

      = 00 for Continental United States

      = 01 for Northeastern United States

      = 02 for Eastern United States

      = 03 for Southeastern United States

      = 04 for North Central United States

      = 05 for Central United States

      = 06 for South Central United States

      = 07 for Northwestern United States

      = 08 for Western United States

      = 09 for Southwestern United States

 - When T2 = Z, ii specifies the regional domain of the Aviation

Surface Forecast Graphic as follows:

      = 90 for Continental United States

      = 91 for Northeastern United States

      = 92 for Eastern United States

      = 93 for Southeastern United States

      = 94 for North Central United States

      = 95 for Central United States

      = 96 for South Central United States

      = 97 for Northwestern United States

      = 98 for Western United States

      = 99 for Southwestern United States

 

Although requirements for the underlying meteorological

information currently provided through the legacy text Area

Forecast (FA) have not changed, the FAA recognizes that, given

modern advances within NWS, the legacy text FA is no longer the

best source of en route flight planning weather information.

Retiring the FA and transitioning to more modern digital and

graphical forecasts will allow the NWS to focus the efforts of

forecasters on maximizing operational benefit to aviation end

users, resulting in improved weather information to decision-makers.

 

Based on comments received by FAA and other NWS users on this

proposed change, NWS plans to discontinue production of FAs.

This will occur once the experimental GFA interactive web-based

display, and the experimental Aviation Surface Forecast and

Aviation Clouds Forecast graphics are operational and any

concerns identified within submitted comments have been

addressed.  Formal public notification will be provided in

advance of the action to discontinue the FAs.

 

Comments will be accepted through April 30, 2017, on the

experimental Aviation Surface Forecast and Aviation Cloud

Forecast graphics as a low-bandwidth alternative to the

Experimental Graphical Forecasts for Aviation interactive web-

based display, and digital/graphical alternative to surface

weather and cloud information contained in the textual Area

Forecasts for CONUS. Comments may be submitted via the survey

link:

 

http://www.nws.noaa.gov/survey/nws-survey.php?code=ASFACFGraphics

 

If you have any questions regarding the experimental Aviation

Surface Forecast and Aviation Cloud Forecast Graphics, please contact:

 

Kevin Stone

Meteorologist

National Weather Service Headquarters

Silver Spring, MD

301-427-9363

Kevin.Stone@noaa.gov

 

National Service Change Notices are online at:

 

http://www.nws.noaa.gov/om/notif.htm

 

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