Have you ever wondered what Michael Fish, the famous British weather forecaster, says to his wife when the heavens open on Christmas Day? Well, the answer might surprise you - he simply says "IR"!

Now, you might be wondering what "IR" stands for. In the world of meteorology, "IR" refers to infrared radiation. This type of radiation is used in weather forecasting to detect cloud patterns and measure their temperature. When Michael Fish sees the skies opening up on Christmas Day, he knows that infrared radiation is being emitted by the clouds, indicating the presence of rainfall.

But why is this phrase so important to Michael Fish and his wife? Well, as a weather forecaster, Michael Fish's job is to accurately predict the weather and inform the public about any impending rain. So, when he sees the heavens open on Christmas Day, he knows that it's time to grab an umbrella and prepare for wet weather.

As an SEO optimized text, it's important to include relevant keywords related to the question. In this case, keywords such as "Michael Fish", "heavens open", "Christmas Day", and "IR" should be incorporated throughout the text to improve search engine visibility.

So, the next time you hear about Michael Fish and his famous phrase on Christmas Day, you'll know that "IR" stands for infrared radiation. And if you happen to be in the UK on Christmas, it might be wise to take his advice and be prepared for some rain!

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