1.   An ambulance service spokesman blamed the icy driving conditions.

2.   Black ice on the roads is making driving conditions very dangerous.

3.   But real-world driving conditions on highways in the South Coast Air Basin are different.

4.   Dense fog is making driving conditions difficult on many roads.

5.   Driving conditions are dangerous, with black ice in many areas.

6.   Heavy snow will mean difficult driving conditions in some areas.

7.   High winds are making driving conditions difficult.

8.   Icy roads have made driving conditions dangerous.

9.   Snow and ice are making driving conditions very dangerous.

10.   Strong winds and heavy rain are making driving conditions treacherous in some areas.