Well here in Toronto the wind is wicked today The high winds that were beating up the western provinces has arrived. The temps are dropping not like in the west but colder for southern Ontario. My question to you guys/girls is... On gusty days if you get caught in a wind storm do you try to pump into the wind or with it. I have been caught  a few times and find pumping into the wind works best. The wind speed service limit for my pump according to the manufacturer states 74 kph but I was in the middle of a pour a few weeks ago and the winds were around 100kph {gusts} that was stated on the news that night.

Even with the boom low to the ground I had my hands full trying to keep the tip hose just above the wall.

Also according to the news this morning,there is tower crane in downtown Toronto blowing around and alot of the construction material is on its way to OZ so alot of the downtown streets are closed. 

 As a pump operator on site, how does one figure how fast the wind is moving?

MMmmm well I have always listened to the weather reports and can tell how windy it is by what is being blown around If I ever see the roof of a house go I will be outa of there...

I have a wind meter, expensive but nice, we have them in both our pumps and all of our cranes. It gives the temp and the wind speed.