Accurately? They can get pretty close for a week to 10 days max after that its pretty much all bets off. You noticed I did say pretty close didn't you because they are only right about 70 to 75 percent of the time as it is.
2007-12-05 07:41:36
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answer #1
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answered by Anonymous
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It all depends on what you mean by accurate. Current forecasts are pretty good about 6 days out for most places. But unforseen things happen. So the longer the forecast, the less reliable it is.
If you think about it, the forecasts are never going to be 100% - they say top of 36 but it's 35 or 37. Close enough but not 100%. So where do you draw the line - a 7day forecast might say top of 25 but it's 20 or 30 - close enough for you?
So the answer is subjective. I used the 7 day forecast while I was building to avoid doing outside things on rainy days. I guess they were right 8 days out of 10 which was better than hoping it wouldn't rain and not looking at the forecast.
2007-12-05 08:57:00
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answer #2
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answered by mis42n 4
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The question can't be properly answered because there is no definition of an 'accurate' forecast. Would you expect the wind force to be given to the accurate knot of velocity and direction in the accurate compass direction? That can't be predicted, not today, not ever! So, with a good lawyer and good recording instruments you will always be able to sue the weatherman.
Any weather forecast will diminish in accuracy with time. Although modern computer technology helps, it is only a meager comfort to know that in two weeks, when you will be holding a grill party in your garden, the chances for good weather is accurate to 2.56%
2007-12-05 09:07:19
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answer #3
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answered by Michel Verheughe 7
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The increasing use of numerical models has extended the time when an accurate forecast can be made but in general anything over 72 hours and the accuracy begins to decrease.
no forecast is 100% on the money, but forecasters can usually get within a certain range + or - a given amount.
2007-12-05 09:49:58
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answer #4
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answered by Larry T 5
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To 6 hours out from present time, =95% to 98% accuracy
12 hours out =90%
24 hours out =75%
48 = 50%
72= 40%
168 hours = 1 week = 20%
2 weeks and over, sheer guesswork!
"Long range" forecasts, statistical nonsense
2007-12-05 13:45:48
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answer #5
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answered by Azalian 5
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The meteorologist office can't even predict the weather for today. How are they supposed to predict the weather in advance. That's just rubbish.
2007-12-05 07:41:56
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answer #6
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answered by Anonymous
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If you go on the BBC weather website, it gives you the next 5 days weather predictions, day by day.
2007-12-05 07:37:26
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answer #7
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answered by Anonymous
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two hours ago. They can never get it right. They say it's going to be warm but it gets real hot, visa versa You need a few changes per day cause you never know what the weather brings
2007-12-05 07:44:23
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answer #8
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answered by Ms Angel 4
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5 day,s
2007-12-05 23:36:32
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answer #9
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answered by dream theatre 7
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I reckon about 4-5 days thats all.
2007-12-05 07:44:34
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answer #10
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answered by Beacher 7
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