What does 'Can't see your hand in front of your face' mean?

If you can't see your hand in front of your face, visibility is very poor due to something like bad fog.

• Category: Body and bodily functions
• Contributed By: James Dennis

Idioms similar to 'Can't see your hand in front of your face'

• Left hand doesn't know what the right hand is doing
• Off-hand
• Out of hand
• Hand in hand
• Go hand in hand
• On the face of it
• Fly in the face of
• Face value
• In your face
• About face
• In the face of
• Close at hand
• Good hand
• Like the back of your hand
• Give me a hand
• One hand washes the other
• Put your hand on your heart
• Upper hand
• Hand to mouth
• In the palm of your hand
• Sleight of hand
• Give a big hand
• Don't bite the hand that feeds
• Put on a brave face
• Lose face
• Keep a straight face
• Written all over your face
• Straight face
• Volte-face
• Save face
• Long face
• Smack in the face
• Cut off your nose to spite your face
• Plain as the nose on your face
• Wipe the smile of someone's face
• Face only a mother could love