Big Apple first lady Chirlane McCray was apparently behind Mayor Bill de Blasio’s premature announcement that a shelter-in-place order was on the horizon for New York City.

On Hot 97’s “Ebro in the Morning” Wednesday, de Blasio doubled down on his insistence that New Yorkers may soon be confined to their homes except for essential trips for food, medicine and exercise because of the coronavirus outbreak — even though Gov. Andrew Cuomo insisted the day before that he wasn’t considering the measure yet.

The mayor said he wanted to prepare New Yorkers for something that “well might be happening soon.”

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“I want people to start getting it into their mind,” he added, crediting McCray.

“I want to quote a wise person, our first lady. Chirlane said to me the other day, remember that people need to get acclimated to things. They need time to get used to things, that’s just human, and to give people a heads-up that this is starting to happen around America and could well be where we end up,” de Blasio said.

Hizzoner has frequently noted that he consults McCray on all of his major decisions.

McCray is mulling a run for Brooklyn borough president and has faced tough criticism for mismanaging the city’s $1 billion mental health plan ThriveNYC.

Cuomo has said that only the state had the power to issue a shelter-in-place order similar to the one in San Francisco, and said de Blasio was causing unnecessary panic by saying Tuesday the edict could be implemented within 48 hours.