1.   A sudden hiss came from the radiator and simultaneously the overheating signal on the dash flashed a warning red.

2.   Her eyes flashed a warning.

3.   But, as he pulled out her chair and let his fingers skim as if by accident across her shoulders, red lights started to flash a warning.

4.   His eyes flashed a warning.

5.   Drivers are flashed a warning if their vehicles break an infra-red beam projected across the road.

6.   And home automation technology can dim lights, flash warnings of a fire and operate other home appliances.

7.   And the weakness continued into May as a key barometer of industrial activity flashed a warning about a possible recession.

8.   Above the stage, the lights on the chandelier flashed a warning.

9.   E-mail warnings were flashed around Washington urging Republican lawmakers and business leaders to send immediate messages of protest to the White House.