"early warning signal" is a correct and usable phrase in written English.
You can use it to describe a situation in which something is signaling the possibility of a problem or impending danger. For example, "The recent increase in the number of traffic accidents is an early warning signal that road safety needs to be improved."
It acts like an early warning signal to show that some situations may be dangerous to your well-being.
As an example of how this measurement could have been used as an early warning signal, he refers to Amaranth Advisors, the hedge fund that failed last September.
"Greece may just be an early warning signal," said Byron Wien, a prominent Wall Street strategist who is vice chairman of Blackstone Advisory Partners.
The death from cardiac arrest of Mr. Galliano's closest collaborator, Steven Robinson, in 2007 also sent out an early warning signal.
Personal health records can also empower women to track their health and the health of their child, and can act as an early warning signal during pregnancy, enabling midwives to provide timely care.
Commissions that instituted and maintained these standards would receive United Nations certification; the failure of commissions to be certified, or the loss of certification, would be an early warning signal well in advance of a potentially explosive election.
The early-warning signal is a dreadful smell.
If such a war comes and the gentler military doesn't do well, Ms. Gutmann's hard-headed book will have provided an early-warning signal.
If shopkeepers ever start separating their notes, it will be an early-warning signal that confidence in the Bosnian notes is slipping.Outside Sarajevo, take-up of the Bosnian notes has been slowest in the Croat-dominated south and west.
Some scholars even argue that the Chinese government tacitly welcomes such protests, considering them to be a relatively harmless outlet for discontent and an early-warning signal of more serious social unrest a phenomenon that the Berkeley political scientist Peter Lorentzen, in a study of authoritarian regimes, has called "regularizing rioting".
Some scholars even argue that the Chinese government tacitly welcomes such protests, considering them to be a relatively harmless outlet for discontent and an early-warning signal of more serious social unrest — a phenomenon that the Berkeley political scientist Peter Lorentzen, in a study of authoritarian regimes, has called "regularizing rioting".
