Weather: One- to Five-Day-Out Global Temperature, Wind Speed, Precipitation

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https://blogs.msn.com/wp-content/uploads/2024/04/Analysis-of-One-to-Five-Day-Out-Global-Temperature-Wind-Speed-Precipitation-and-Opacity-Forecasts-January-December-2023.pdf

..This report provides a holistic analysis of weather forecast performance for 13 different metrics for
global forecasts made one to five days in advance for the year 2023. The 13 different metrics include
eight metrics for high and low temperatures, one for wind speed, two for precipitation, and two for
opacity (sky cover). This report examines forecasts from 22 different weather forecast providers.
Fifteen providers forecasted globally and nine forecasted for all 13 metrics. These same nine
providers also forecasted globally. ..

Microsoft scored the most first-place finishes (50,624) globally in 2023 for all 13 metrics and one
through five days out. The Weather Channel had the second most with 39,145, and Foreca/Vaisala
had the third most with 12,917. Weerplaza was fourth with 8,696, AccuWeather had 7.364, and
CFAN had 5.482. The other 16 providers had fewer than 4,000 each.
Percentagewise, Microsoft had 34.73%, The Weather Channel claimed 26.86%, and Foreca/Vaisala
took 8.86%. When weighting metrics such that each of the five weather variables has equal
importance. these numbers are 37.01% for Microsoft, 27.37% for The Weather Channel, and 9.55%
for Foreca/Vaisala. ..

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Alex5723 wrote:

Percentagewise, Microsoft had 34.73%

So the MS forecast was 34% accurate?

It’s just a weather forecast! Use it as a guide and remember to allow for less predictable and more extreme weather thanks to global warming.

cheers, Paul

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Paul T wrote:

So the MS forecast was 34% accurate?

Microsoft was most often the most accurate.

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Alex5723 wrote:

Percentagewise, Microsoft had 34.73%, The Weather Channel claimed 26.86%, and Foreca/Vaisala
took 8.86%.

b wrote:

Microsoft was most often the most accurate.

A University of Illinois study published in 2010 showed that the Farmer’s Almanac was 52% accurate in predicting weather based on a system developed in 1792 by Robert B. Thomas; but the Farmer’s Almanac doesn’t have the pretty graphics.

HTH, Dana:))

3 users thanked author for this post.

Mr. Austin, jburk07, WSbobby-p

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