Questions
The short answers. Anything missing? Ask us.
Frequently asked questions
What is PerilRadar?
A live wall for six weather perils: thunderstorm, hail, wind, tornado, hard freeze and lightning. It gathers official warnings, reports and maps in one calm place and credits the service behind each one.
Is PerilRadar a warning service?
No. PerilRadar never issues, edits or restates a warning. Every warning is reprinted exactly as the issuing service published it, with credit and a link. For your safety, rely on your national weather service, NOAA Weather Radio or Wireless Emergency Alerts, and local officials.
Does PerilRadar forecast the weather?
No. It shows what official services have issued and what has been reported. Outlook maps from the Storm Prediction Center appear as SPC's own product, credited to SPC.
Where does the data come from?
In the United States: the National Weather Service, the Storm Prediction Center, NOAA nowCOAST, NOAA NESDIS and the Aviation Weather Center. Canada and Europe switch on with Environment and Climate Change Canada and EUMETNET – MeteoAlarm as their feeds pass testing.
What do FACT and MODEL mean?
FACT is official data shown with its source. MODEL is anything PerilRadar computes, such as a comparison with the 30-year normal. They are styled differently on purpose.
Why do I see an offline card?
The source did not answer. The page keeps working and the card retries on its own. PerilRadar never shows old data as if it were new.
Why does a region say testing?
Each region goes live only after its feeds pass testing for format, freshness and terms of use. The United States is live now.
What is the Research Lab?
A public board where anyone can submit a weather idea. It is tested against official data and published pass or fail, with the method and data.
What does membership add?
The Command Center (all six perils on one live screen, anomalies versus normal, Storm Replay) and the Weather Almanac. The live wall stays free.
Who runs PerilRadar?
Brian Lee Westfall of AI Vision Designs in Fort Worth, Texas. PerilRadar is independent and is not affiliated with or endorsed by any weather service.