The UK's Met Office Space Weather Operations Centre, established in 2014, has been working to help the country prepare for space weather events. They provide daily forecasts, including four-day geomagnetic storm forecasts (GMSF) and X-ray flare forecasts (XRFF). But how good are these predictions?

To find out, experts compared the forecasts with real data from satellites and other sources. They looked at a 19-month period and found that the forecasts weren't always better than a simple reference forecast. This means that while the forecasts have some skill, they often predict more events than actually happen.

The study used data from the GOES-15 satellite for X-ray flare forecasts and planetary K-index (Kp) values from the GFZ Helmholtz Centre for geomagnetic storm forecasts. The analysis showed that both types of forecasts struggle to outperform the reference. However, they do have some ability to distinguish between different levels of events.

The team also found that the forecasts tend to over-predict events. This means that while they can identify potential risks, they may also create unnecessary alerts. It's important for forecasters, users, and stakeholders to understand these strengths and weaknesses to make informed decisions.

In the world of space weather, accuracy is key. While the current forecasts have room for improvement, they are a crucial tool for building resilience against space weather impacts. As technology advances, so too will our ability to predict and prepare for these events.

FORECAST VERIFICATION

Space Weather Predictions: Are They Hitting the Mark?

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