For all those who do not understand TAFs, I will translate Warped Factor's post for you:
Take a ruler and measure the length of the TAF.
If its length is two inches or less (in old money), you have no problem.
Two to four inches - OK, but take reasonable precautions.
If it is from half to a full line in length, then a delay in take-off might be advisable.
A length of two lines - whatever you do, do not commit aviation today.
Three lines - retire immediately to a safe place.
More than three lines? Don't be ridiculous!
Farmer.
P.S. The length of lines on this page is much longer than on an A4 page. I am talking about A4 here, so I reckon that TAF was originally considerably more than three and a half lines in length.