NOUS41 KWBC 131851



Public Information Notice, Comment Request

National Weather Service Headquarters Washington DC

300 PM EDT Thu Mar 13 2014


To:       Subscribers:

          -Family of Services

          -NOAA Weather Wire Service

          -Emergency Managers Weather Information Network


          Other NWS Partners and NWS Employees


From:     Eli Jacks

          Chief, Fire and Public Weather Services Branch


Subject:  Soliciting Comments until July 30, 2014, on the

          Experimental Model Spread/Spectrum


The NWS is accepting comments until July 30, 2014, on the

experimental Model Spread/Spectrum.


The experimental Model Spread/Spectrum provides a more complete

picture of the weather forecast by showing the range of model

possibilities. The variability of the models is related to the

amount of confidence in a forecast. A low model spread generally

means higher confidence, while a large model spread implies lower

confidence. You can use this product to make a more informed

decision. There are also options to choose the NWS forecast if

you feel uncomfortable with your interpretation.


The experimental Model Spread/Spectrum is available online for

all Weather Forecast Offices (WFOs) via the Experimental Enhanced

Data Display (EDD) at:


The button labeled “Model Spread” can be found under the Quick

Layers menu on the left hand side.


More information regarding the experimental Model Spread/Spectrum

is available online at:


Please submit comments to the following link:


Comments will be collected until July 30, 2014. At that time, the

NWS will evaluate feedback to determine whether to transition the

Model Spread/Spectrum to operational status as a National

Product, discontinue it, or revise and extend the experimental

feedback period.


For more information, please contact:


  Jonathan Wolfe

  Emergency Response Specialist   

  National Weather Service WFO RLX

  Charleston, WV 25309



National Public Information Notices are online at: