Quiz of the week: How far ahead can we predict the weather?

# What this quiz covers

This Physics World "Quiz of the week" asks readers to check how well they follow developments in physics-related topics, in this case the limits of weather prediction. It sits on the Everyday Science section and points readers to a companion article that summarizes recent research on how far ahead accurate weather forecasts are possible.

# Why this matters

Weather forecasting affects planning across transport, agriculture, emergency response, and daily life. Understanding how far ahead forecasts can reliably predict conditions helps set expectations for users of those forecasts and guides research and investment in modelling, observations, and computing resources.

# The companion finding you should know

Physics World links this quiz to a separate feature titled "How far ahead can we predict the weather?" That piece reports on new work estimating an approximate maximum predictability horizon for weather. The research discussed suggests a practical upper limit measured in months rather than weeks. The linked summary gives a specific figure for that limit.

# What the quiz experience is like

• The quiz is concise and intended for quick engagement.
• It uses a mix of scientific context and recent news to form questions.
• The page includes a photograph credited to Zoltan Toth showing Wei Zhang and Zoltan Toth outside the NOAA Global Systems Division.

# Access and registration

Physics World allows free registration. The quiz page indicates that registering is quick and free and that you may need to confirm your email to read more content on the site. If the verification email does not appear promptly, the page suggests checking spam folders or contacting customer services at the publisher.

# How readers should use this quiz

• Treat it as a quick check of your awareness of a recent result about forecast horizons.
• Use the linked feature article if you want the research summary and the approximate maximum forecast limit in concrete terms.
• If you plan to read more Physics World pieces, register with the site to get immediate access to the wider archive.

# Quick summary

This week's quiz asks a short set of questions about how far ahead weather can be predicted and links to a Physics World feature that reports on new work estimating a month-scale upper bound on forecastability. The quiz is short, photo-accompanied, and sits behind a registration process that the publisher describes as free and quick.