The National Weather Service issued "red flag" warnings for the entire state of California, predicting 30- to 40-mile-an-hour winds starting tonight and continuing through Saturday.

In issuing "a red flag" warning, Dr. Horan said the study was the first to determine the safety and effectiveness of angioplasty and bypass surgery for diabetics.

The earliest citation of "red flag" in the sense of a warning is dated 1777 and refers to a flag warning of flood.

If you are, that's a major red flag warning you away from the investment.

And two other essentials are knowing how to interpret flag warnings and what to do if you get caught in a rip current.

When the train reached Whittington it began to gain speed on the gradient, but the driver of the front locomotive did not see the flag warning of the work ahead.

It is currently part of the Defence Estate and is regularly used as a live firing range with red flag warnings and the path down to the beach closed.

Three drives were warned for exceeding track limits, with Mehdi Bennani also being issued with a black and white flag warning.

Along the shore at Atlantis, an eastern wind snapped the red flag warning of rough waters.

"I'll drop anchor here and raise the orange flag warning of divers in the water."