The phrase "a severe warning" is correct and usable in written English.
It can be used when indicating a strong or serious caution about a potential danger or risk.
Example: "The meteorologist issued a severe warning about the approaching storm, advising residents to take shelter immediately."
Alternatives: "a strong warning" or "a serious alert".
The highest-ranking official implicated in the scandal, he received a severe warning.
There is a "severe" warning of snow and ice for most of the country today.
JERUSALEM, Aug. 9 — The United Nations on Thursday issued a severe warning that Gaza could face an economic meltdown with "disastrous consequences" unless its main crossings were reopened.
Within weeks of reporting his results to the F.D.A., the agency announced that it was placing a severe warning on Seldane's label about the interaction.
Although forecasters have said that the worst of the weather has passed, a severe warning is still in place and is expected to last another day.
"A plain-clothes officer would appear out of nowhere, asking for a permit or offering a severe warning to my translator, even though our purpose and intentions were clear".
His entry comes two years after he received a "most severe warning" after an internal I.O.C. inquiry into the Salt Lake City bid scandal.
By 9 50 a.m., the university issued a more severe warning by e-mail, phone and loudspeaker.
He was at the heart of the Salt Lake City scandal and received a "most severe" warning from the I.O.C. over influence-peddling and nepotism.
Kim received a "most severe" warning from the I.O.C. during the scandal, and his son, known as John Kim, was indicted on charges of receiving a sham job paid for by the bid committee for the 2002 Winter Games.
But he received a "most severe warning" from the I.O.C. executive board in 1999 for allegedly arranging jobs for his son and daughter through the Salt Lake Olympic bid organization.
