keep a

Related to keep a: keep busy

keep a weather eye open

An instruction to monitor someone or something, often because the person or thing in question may turn out to be dangerous. I think Tom's a thief, so keep a weather eye open around him. I'd keep a weather eye open with this storm that's brewing—we may have to evacuate.
See also: eye, keep, open, weather
Farlex Dictionary of Idioms.

keep a

/one's weather eye open
To keep watch; stay alert.
See also: keep
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • keep (one's) weather eye open
  • keep a weather eye open
  • keep a weather eye out
  • keep weather eye open
  • make a joke of (something)
  • make a joke of something
  • seem like
  • seem like (something)
  • jam into (something)
  • say (something) to (one's) face
References in periodicals archive
It's mega-exciting when a guy comes on super-strong, but try to keep a little perspective and consider the sitch carefully.
Is your summer crush a keeper? How can you tell whether he's just good times for now--or worth hanging with past beach season? This quiz will shed some light