The phrase "a flashing signal" is correct and usable in written English.
It can be used to describe a signal that emits light in a flashing manner, often used in contexts like traffic signals, alarms, or notifications.
Example: "The car approached the intersection, but the flashing signal warned drivers to stop."
Alternatives: "a blinking light" or "a strobe signal."
For one, the solutions brought forth by those with the most to lose would have likely been far more elegant than Bear's government-engineered fire sale to JPMorgan, plus its near death would have served as a flashing signal to other banks with questionable balance sheets to either find buyers themselves, or quickly source new capital.
Clearly, the surge in the number of trading investigations is a flashing signal that the pursuit of suspected stock cheats by regulators is heating up.
I'm pained that he or she doesn't realize that the error is a flashing signal of (at best) carelessness or (at worst) ignorance.
The parameters that determine the type of change that will cause a flashing signal can be customised by the physician and are specific for each questionnaire.
In other words, with no crossing gates, the flashing signal lights might have been Hilary's last, best warning.
Then he begins to wave his hands about, this time a bit more broadly, like a third-base coach flashing signals to a nearsighted runner.
In it, he writes of how all his old Fleet Street friends are now dead, leaving only him and one other pal to exchange letters – an experience he likens mournfully but beautifully to "two small ships flashing signals across a huge darkness".
The housing slump has deepened, consumer confidence has sunk and shoppers are flashing signals of caution.
On it are multicolored warning lights, constantly flashing, signalling places of danger.
Microwave sensors installed at Lankershim Boulevard and Arminta Street--which previously had no traffic lights--trigger a flashing yellow signal to warn motorists of pedestrians.
But if you expose a person with migraine to a flashing light, the signal will grow larger with time.
