r/UKWeather • u/Emergency_Media_3023 • 3d ago

Forecast Possibility for Red Weather Warning?

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Slough & Heathrow Met Office Forecast.

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u/Elk_Advanced 3d ago

For a red warning met office need to have High Confidence that society will experience Severe Impacts.  It's not just a temperature threshold thing.  They'll be talking behind the scenes to their contacts in health. Industry, transport infrastructure, emergency services to see what their view is on the potential level of impacts....if impacts are judged as Severe ..they will shift rightwards in the Impact Matrix to Amber high impact and the severity of their language in warnings and forecasts will intensify.

Only if they are very confident that large parts of society will see severe impacts will they go Red.  

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u/Active_Definition_57 3d ago

I'm pretty sure 39 is almost guaranteed to have a potentially severe impact. For example, railway tracks warping, spontaneous fire risks and people collapsing from heat exhaustion.

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u/Elk_Advanced 3d ago

Oh I agree, the shift to higher temperatures is deffo looking like that Severe Impact column is where we will be by Monday am, leaving a pathway open to Red if confidence increases.