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The Performance Branch creates applications and publishes resources to help the NWS achieve its maximum forecast and warning performance. Our goal is to provide subject matter expertise, assist service programs in defining requirements, collaborate with research and development efforts, while striving for exceptional customer service. We hope you find the site a useful resource. An account is required to access most of the site content. Please login or register.

What’s New in Performance Management?

The May 2013 Oklahoma Tornadoes and Flash Flooding Service Assessment

NWS Releases the May 2013 Oklahoma Tornadoes and Flash Flooding Service Assessment


The NWS has released the May 2013 Oklahoma Tornadoes and Flash Flooding Service Assessment.  The report was signed March 2014 by Louis W. Uccellini, Assistant Administrator for Weather Services.

From May 19 to May 31, 2013, a series of devastating weather events affected the area in and around Oklahoma City.  Although this report focuses on three specific days, May 19, 20, and 31, the entire period was characterized by an active weather pattern and multiple tornadoes across several National Weather Service (NWS) Weather Forecast Offices’ (WFO) areas of responsibility.  The historic flash flooding that occurred in Oklahoma City on May 31 is also of note.  This flash flooding caused more fatalities than the tornadoes on that day.  In all, there were 47 direct weather fatalities in the WFO Norman County Warning Area during these 13 days in May.

NWS formed a Service Assessment Team to evaluate NWS performance and to undertake a detailed social science review to examine the effectiveness of messaging and the behavior of the public in each severe weather event.  The team concentrated its efforts primarily on counties and cities affected by the strongest tornadoes during this period.  NWS also conducted a complete review of the operations of WFO Norman and the Storm Prediction Center.  After the events on May 20 and May 31, NWS Southern Region Operational Services Division conducted a Rapid Evaluation of Service Activities and Performance (RESAP).  Several of the RESAP findings were incorporated into this report.  The full service assessment may be found here.

Peak Performance Newsletter

Released: Winter 2013-2014 Edition of Peak Performance!


The Performance Branch is pleased to announce the release of a Winter 2013-2014 Edition of Peak Performance! 

In this issue you will find the following articles:

1. The Marine Verification Program: Would You Like to Help Test the System? 
2. Performance Branch Welcomes Back Ed French
3. Fly...with Ointment: Aviation-Related Surveys
4. National Weather Service 2013 Customer Satisfaction Survey Results Briefing
5. Update on Performance Branch Web Modernization
6. Status of Service Assessment Actions

We hope this edition provides both interesting and educational topics.  If you would like to contribute to the Spring 2014 Peak Performance Newsletter, articles are due on Monday, April 7, 2014.  Submission guidelines may be found here.  We look forward to hearing from you!

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Enhance Fujita Scale Open Feedback Forum at AMS Annual Meeting


On Monday, February 3rd, 2014 from 1pm - 4pm EST, the NWS will host an open discussion with the AMS community regarding the current EF-Scale for rating the strength of tornadoes. This discussion will serve to outline the strengths and deficiencies with the current EF-scale rating guidance, and solicit feedback and ideas from the weather community on how the rating process might be improved.  This event will take place at the Omni Hotel at CNN Center, International Ballroom A, 190 Marietta St NW, Atlanta, GA 30303 and will also be broadcast via web conferencing software.  For more information and to register for this event please visit:  If you have any questions, please contact

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OMB Approved Quick Response Surveys Now Available


On September 12th, 2013, OMB approved a set of survey questions to better understand how NWS products, information and services are received, understood and utilized.  These questions are now on the Performance Management website and available for WFOs to begin using.  As of right now, these surveys can be used to collect information in a face to face format or via email as long as the OMB Control Number: 0648-0342 is displayed. As time permits, the Performance Branch will be working to create a system to better collect and analyze the responses.

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Winter Edition Available NOW!
Winter Edition Available NOW!