Tarping is a great way to do this and acts as a good intermediary until a roofing repair professional can come out to your home.
How to temporarily patch your roof.
Anytime you throw something over the house there is a risk of hitting a person pet window etc.
Tie the string to the lash ropes on the tarp and pull the ropes over the house.
A tarp that will at least extend past the damaged area by at least 3 on each side the bottom the ridge the thicker.
Let the wet areas dry and then apply the patch to the underside of the roof with a putty knife.
How to make a temporary emergency roof repair straighten out any curling shingles by softening them with a heat gun and gluing them down with roofing cement.
Slide any loose shingles back under the bottom edge of the row above and nail them down securely with 6d galvanized.
Use enough of the roof patch to liberally cover the leaky area.
If you have a ladder a knife a cordless drill saw you are all set just need to pick up some supplies a tarp that.
One way is to tie lightweight string to a tennis ball and throw the ball over the roof.
The thicker the tarp is the better if it has uv.