Technology failure?

Yesterday evening, as they have done many times before, the weather forecasters gave 'a severe weather warning' for this part of the country. From early evening we could expect rain which would turn very heavy, giving us at least one and a half inches before morning.
So, like an idiot, I believed them and only watered my pots and not the whole garden as I had intended. The pots have to be watered whether it rains or not because there is so much foliage that the rain wouldn't get in them in sufficient quantities to do any good.
And what do I find when I get up this morning.......not much! We had about three drops before I went to bed at 10 o'clock and by six this morning there had only been sufficient to dampen the pavements.
This is not the first time that these people, who are educated to degree level and have all the most up to date technology at their fingertips, have got it very, very wrong. To make matters worse, they did not apologise on any of the forecasts today for the lack of rain that all gardeners and farmers have been waiting for.
Did their computers fail them or have they not got the hang of the software? This is getting to be a habit with all the weathermen and women. They just can't get the short term forecast right never mind the long term ones.
I think I'll have to get a piece of seaweed and hang it outside the back door. That's always right, when it's wet it's raining and when it's dry, it's dry!