Severe Weather Spotters

Severe Weather Spotter Training and Outreach

Latest News:
- The "in-person" training schedule for 2015 is coming together--click here for the latest. More classes will be scheduled--check the schedule often.  In the meantime, you can take the online spotter training courses (listed below) at anytime!
- The Weather Spotter's Field Guide is available online. Please review and print for your use.
- Training modules for storm spotters are available--under "Training Online" below. These three online courses can be taken in lieu of attending a class.
- All spotters should complete the 15 minute on-line data quality training for spotters: "Spotter Report Data Quality."

What is a Storm Spotter?
Storm spotters are volunteers who help their community and NOAA's National Weather Service by keeping an "eye on the sky" during severe weather. Our spotters contact the NWS via phone, amateur radio, or the internet, keeping our forecast staff updated with the latest weather information from their location. Anyone over the age of 15 years old can become a spotter. If you would like to become a severe weather spotter for northeast or north-central Wisconsin, you must either attend training presented by NWS Green Bay or take the three online courses in the "Training Online" section below.

To remain a spotter in good standing, you must either attend a refresher course or retake the three online courses (see "Training Online" section below) every couple of years.

For additional information concerning the spotter program, click here for answers to Storm Spotter Frequently Asked Questions.

Frequently Requested Severe Weather Products and Pages

arrow Hazardous Weather Outlook -- NWS Green Bay Forecast Area
arrow Severe Thunderstorm/Tornado Watches -- NWS Green Bay Forecast Area
arrow Severe Weather Watches -- For Wisconsin
arrow Our Severe Weather Forecast Page -- Forecasts, watches, and warnings
arrow Submit a Storm Report to NWS Green Bay

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Amateur Radio Operations at NWS Green Bay - WX9GRB

Amateur radio spotters provide valuable weather reports to the NWS Green Bay office during severe weather.  Several volunteer net controllers, lead by Christian Reynolds (KC0ARF) and Greg Hovland (W9IKU), staff the amateur radio desk at the NWS Green Bay office--WX9GRB (above, left)--and stay in contact with spotters across northeast and north-central Wisconsin.  The 80 ft tower (above, right) is home to the antennas.

Skywarn Recognition Day

WFO Green Bay once again participated in the annual event, celebrating the contributions that volunteer SKYWARN radio operators make to the National Weather Service. During the day, SKYWARN operators visit NWS offices and contact other radio operators across the world.  Click here for more information about the event.

Spotter Brochures & Instructions

Skywarn Tri-Fold Spotter Brochure-- .pdf format
Skywarn Measuring Snowfall for NWS Green Bay -- .pdf format
Weather Spotter's Field Guide -- .pdf format  -- NEW!

Training Online

Spotter Training
The online classes below can be taken in lieu of attending in-person classes (all should be completed together).  Upon completing the online courses, email the Certificates of Completion to -- You will then receive additional information on becoming a spotter for northeast Wisconsin.

Skywarn Skywarn Spotter Training -- Two modules/sections to receive full credit. Registration required.
Skywarn Spotter Report Data Quality -- 15 minute training on the importance of accurate reporting.

Radar Interpretation
The radar training is not required to become a spotter, but is recommended for advanced spotters or net control operators.
Skywarn Weather Radar Fundamentals -- Fundamental principles of Doppler weather radar operation and how to interpret common weather phenomena using radar imagery
Skywarn Introduction to the WSR-88D NWS Doppler Radar -- Basic Doppler radar overview 

Severe Weather
Skywarn Severe Weather 101 -- Severe weather basics

Additional Spotter Information

Skywarn Packerland Amateur Radio Skywarn Society (PASS)
Skywarn Milwaukee Area Skywarn Association (MASA)
Skywarn Wisconsin Spotter Amateur Radio Frequencies
Watch the weather daily -- How you can contribute every day!
Skywarn Become a Weather-Ready Nation Ambassador --  How your organization can become a WRN Ambassador
Skywarn Severe Weather Awareness
Skywarn The Microburst Handbook is the U.S. government's official web portal to all federal, state and local government web resources and services.