The weathermen are often wrong in their predictions but it might be better not to put sheets out on the clothesline to dry on days when they are predicting a 90% chance of rain. I'm just say'n....
Looks like they will all have to washed again - to get the sand off.
A corollary to the above is - It might be a good idea to look at the sky before putting clothes or sheets out on the clothesline to dry...
Possibly some rain? Hmmmmm......