NOAA/National Weather Service's Warning Decision Training BranchUnited States Department of Commerce

FLASH Products Course Available February 2017

A Flooded Locations And Simulated Hydrographs (FLASH) Products course is now available. This curriculum consists of 2 lessons that give a basic overview of FLASH products and how they can be used in operations.

Looking for training? Click here to access our current training schedule
Confused by winter weather watches, warnings and advisories? Click here to help simplify our 		products.

Warning Decision Training Division

Office of Chief Learning Officer

Multi-Radar/Multi-Sensor (MRMS)

Weather.gov > Warning Decision Training Division

Introduction

Welcome to the Multi-Radar/Multi-Sensor (MRMS) training page. The MRMS suite of products represents a new way to use key inputs into warning and forecast decision-making for public, hydrological and aviation service sectors of the NWS and its core partners. MRMS was deployed operationally in October 2014 from the NCEP Central Operations suite of servers and made available to the NWS and the public through a variety of means. MRMS was integrated into AWIPS-2 in September 2015, further solidfying its use in warning operations. As a result, WDTD created products and applications training, available on both this page and the Learning Management System (LMS). This page should be used as a resource to familiarize users with how MRMS is created, its products, and initial steps of applying them in operations. We update this page frequently to account for the latest upgrades to the MRMS suite and potential applications, so check back occasionally.

Facilitators: an orientation session about the MRMS products course, products guide and future training plans is available here.

ATTENTION SOOs, ITOs, and AWIPS Archive focal points: Your machines may not automatically save MRMS data in case archiving. To be sure this is enabled: within the Archive Case Creation GUI, select the "MRMS" checkbox under "Model" data in both the "Processed" and "Raw" menus. If "MRMS" does not appear under "Raw," select "161".


MRMS Course Tracks

Below is a flowchart depicting the available MRMS course tracks. Depending on your job responsibilities, there are different tracks to take within the Products and Applications courses:

flowchart

Use this flowchart to determine which tracks you wish to take.


Accessing the Lessons

Click on the panels below to access the content for each course track. There are two ways to access the training materials:
  • Web Version - Lesson streams from the WDTD web server and does not require log-in
  • LMS Version - Links to the NWS Learning Center (aka LMS); allows NWS employees to get completion credit, but log-in is required


MRMS Product Tracks

MRMS Products Course for WFO Forecasters

MRMS Overview

3D Reflectivity Cube

Reflectivity Products

Hail Products

Velocity-based Products

Lightning Products

Hydro Products

MRMS Hydro Products Course

NOTE: This track is meant for Hydro Focal Points, or the interested user. The three lessons below simply go into the details introduced in the "Hydro Products Overview" lesson. No person should take all four lessons (unless they want to see duplicate information).

MRMS Overview

Hydro Products

MRMS Severe/Aviation Products Course

MRMS Overview

3D Reflectivity Cube

Reflectivity Products

Hail Products

Velocity-based Products

Lightning Products

MRMS Full Products Course

Take everything from the Hydro and Severe/Aviation Products Courses.

FLASH Products Course

Overview - This course is designed for users wanting knowledge of Flooded Locations And Simulated Hydrographs (FLASH) products.

  • Model-Derived Products: Web Version | LMS Version
  • Comparison Products: Web Version | LMS Version

  • MRMS Applications Tracks

    MRMS Applications Course for WFO Forecasters

    Overview - This course is designed for users requiring knowledge of applications of MRMS products.
    PREREQUISITE: MRMS Products Course for WFO Forecasters

    MRMS Overview

    MRMS Severe Applications

    • Screen and Rank Storms by Order of Threat: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to screen storms that threaten life and property over your county warning areas (CWA) and rank them by order of threat.
    • Evaluation of Tornado Hazard: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to identify tornado location and assess short-term tornado threat.
    • Evaluation of Convective Storm Mode: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to identify the convective modes of storms in your CWA.
    • Nowcasting Thunderstorm Cell Initiation: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to nowcast thunderstorm cell initiation.
    • Updraft Characteristics: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to assess updraft characteristics.
    • Evaluation of Severe Hail Hazard: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to determine the presence and characteristics of severe hail.

    MRMS Hydro Applications for WFOs

    • Introduction to the Hydro Track: Web Version | LMS Version
      Description: This introductory presentation provides the framework of the Hydro Track of the MRMS Applications Course, as well as a description of material to be presented in the track, contact information, and relevant links.
    • Access and Timing of MRMS QPE Products: Web Version | LMS Version
      Description: This lesson describes how to access the MRMS QPE products along with the availability and frequency of each product.
    • Evaluating MRMS QPE Products: Web Version | LMS Version
      Description: This lesson provides information on how to identify and evaluate the different challenges with QPE in MRMS. This includes how to work in areas of poor or reduced radar coverage, the influence of surface precipitation types on QPE, and the quality control of MRMS data.
    • Advantages and Challenges of MRMS QPE: Web Version | LMS Version
      Description: This lesson discusses the strengths and challenges of real-time MRMS QPE when compared against single-radar QPE products. Topics included in QPE comparisons include spatio-temporal resolutions, quality control, and differences in precipitation rate calculations. This lesson also discusses how to evaluate QPE biases in real-time.
    • Use of MRMS Products at WFOs--Flash Flood Events: Web Version | LMS Version
      Description: This lessons discusses the utility of MRMS QPE products in flash flood operations. This includes identifying areas of excessive rain rates and QPE accumulations, as well as suggestions for AWIPS procedures.
    • Use of MRMS Products at WFOs--River Flood Events: Web Version | LMS Version
      Description: This lesson covers the utility of MRMS QPE products in river flood events.
    MRMS Hydro Applications Course

    It is assumed that the forecaster has taken the "MRMS Hydro Products Course" prior to taking the "MRMS Hydro Applications Course". The Hydro Applications Course curriculum depends on whether the forecaster is at a WFO or RFC. Please see the sub-sections below.


    MRMS Overview

    MRMS Hydro Applications - ALL

    All forecasters should take these four lessons.

    • Introduction to the Hydro Track: Web Version | LMS Version
      Description: This introductory presentation provides the framework of the Hydro Track of the MRMS Applications Course, as well as a description of material to be presented in the track, contact information, and relevant links.
    • Access and Timing of MRMS QPE Products: Web Version | LMS Version
      Description: This lesson describes how to access the MRMS QPE products along with the availability and frequency of each product.
    • Evaluating MRMS QPE Products: Web Version | LMS Version
      Description: This lesson provides information on how to identify and evaluate the different challenges with QPE in MRMS. This includes how to work in areas of poor or reduced radar coverage, the influence of surface precipitation types on QPE, and the quality control of MRMS data.
    • Advantages and Challenges of MRMS QPE: Web Version | LMS Version
      Description: This lesson discusses the strengths and challenges of real-time MRMS QPE when compared against single-radar QPE products. Topics included in QPE comparisons include spatio-temporal resolutions, quality control, and differences in precipitation rate calculations. This lesson also discusses how to evaluate QPE biases in real-time.

    MRMS Hydro Applications for WFOs

    If you are at a WFO, add these two lessons to the four above (from the ALL section).

    • Use of MRMS Products at WFOs--Flash Flood Events: Web Version | LMS Version
      Description: This lessons discusses the utility of MRMS QPE products in flash flood operations. This includes identifying areas of excessive rain rates and QPE accumulations, as well as suggestions for AWIPS procedures.
    • Use of MRMS Products at WFOs--River Flood Events: Web Version | LMS Version
      Description: This lesson covers the utility of MRMS QPE products in river flood operations.

    MRMS Hydro Applications for RFCs

    If you are at a RFC, add this lesson to the four above (from the ALL section).

    • Use of MRMS Products at RFCs: Web Version | LMS Version
      Description: This lesson covers potential uses of MRMS QPE products in RFC operations.
    MRMS Severe/Aviation Applications Course

    MRMS Overview

    MRMS Severe Applications

    • Screen and Rank Storms by Order of Threat: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to screen storms that threaten life and property over your county warning areas (CWA) and rank them by order of threat.
    • Evaluation of Tornado Hazard: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to identify tornado location and assess short-term tornado threat.
    • Evaluation of Convective Storm Mode: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to identify the convective modes of storms in your CWA.
    • Nowcasting Thunderstorm Cell Initiation: Web Version | LMS Version
      Description: This lesson describes how to use MRMS products to nowcast thunderstorm cell initiation.
    • Updraft Characteristics: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to assess updraft characteristics.
    • Evaluation of Severe Hail Hazard: Web Version | LMS Version
      Description: This lesson describes how MRMS products can be integrated into an operational warning environment to determine the presence and characteristics of severe hail.
    MRMS Full Applications Course

    Take everything in the "MRMS Applications Course for WFO Forecasters", as well as the lesson "Use of MRMS Products at RFCs" (below).

    • Use of MRMS Products at RFCs: Web Version | LMS Version
      Description: This lesson covers potential uses of MRMS QPE products in RFC operations.
    MRMS Application of the Month archive

    Overview - WDTD has begun a monthly MRMS Application of the Month webinar series. Here is an archive of the recorded webinars.

    • March 2015: MRMS Products
      Description: This webinar featured two scientists at the National Severe Storms Laboratory presenting that nature of MRMS and how this new suite of products may affect NWS operations.
      Launch
    • May 2015: The Use of MRMS Rotation Tracks for Tornado Warning Decision Making
      Description: This presentation showed results of a study evaluating the relationship of MRMS low-level rotation tracks to tornadogenesis and examples from supercell and QLCS events.
      Launch
    • June 2015: Benefits of using MRMS Products in Severe Weather Operations
      Description: This presentation showed how MRMS products can help make storm triage easier.
      Launch
    • July 2015: MRMS QPE Performance During the 2013-2014 Cool Season
      Description: This presentation included results from a National Severe Storms Lab study that tested MRMS QPE performance against legacy hydro products during the cool season.
      Launch
    • February 2016: First Experiences with MRMS at NWS Wilmington, NC
      Description: This presentation included a comparison between MRMS and legacy QPE products during a rainfall event in November 2015 at WFO Wilmington, NC.
      Launch
    • April 2016: MRMS QPE Performance East of Rockies During the 2014 Warm Season
      Description: This presentation included results from a National Severe Storms Lab study that tested MRMS QPE performance against legacy hydro products during the 2014 warm season.
      Launch
    • May 2016: A Tornadic Event in Eastern NC – February 24, 2016
      Description: This presentation gave a retrospective look at a tornadic event in eastern NC using MRMS products.
      Launch

    MRMS Products Guide

    This guide, available on the NOAA VLab, is a webpage library of MRMS products categorized by product type (e.g. severe, precipitation). As shown in the image below, use the dropdown menu to find product information such as: resolution, inputs, strengths and limitations, and applications (including examples).

    VLab Products Guide


    MRMS Quick Reference Guide

    This short guide created by WFO Bismark, ND shows the most popular uses of MRMS products.


    Feedback/Questions

    WDTD welcomes your feedback on our MRMS training, as well are here to answer any questions on the content. Please send us your comments/questions to the following e-mail address:

    MRMS email link

    Acknowledgements

    Training developers:

    Alyssa Bates, WDTD
    Jill Hardy, WDTD
    Clark Payne, WDTD
    James LaDue, WDTD
    Matt Elliott, NWS
    Steven Martinaitis, NSSL
    Dave Cokely, DSCS
    Mike Magsig, WDTD
    Tiffany Meyer, NSSL
    Robert Prentice, WDTD
    Chris Spannagle, WDTD
    Matt Taraldsen, former WDTD

    Collaborators:

    Steve Cocks, NSSL
    JJ Gourley, NSSL
    Kenneth Howard, NSSL
    Darrel Kingfield, NSSL
    Valliappa Lakshmanan, NSSL
    Carrie Langston, NSSL
    Matt Mahalik, NSSL
    Kiel Ortega, NSSL
    Ron Przybylinski, WFO STL
    Greg Stumpf, NSSL
    Brandon Smith, NSSL
    Travis Smith, NSSL
    Greg Story, WGRFC
    Ray Wolf, WFO DVN
    Jian Zhang, NSSL

    This project was previously funded by the NEXGEN office and NSSL, courtesy of Mark Miller and Ken Howard.