Donald Trump turned climatologist Wednesday night, as much of the Eastern part of the nation braced for a major cold snap on Thanksgiving weekend.

Trump tweeted, “Brutal and Extended Cold Blast could shatter ALL RECORDS – Whatever happened to Global Warming?”

Brutal and Extended Cold Blast could shatter ALL RECORDS – Whatever happened to Global Warming?

— Donald J. Trump (@realDonaldTrump) November 22, 2018

The imminent chill caused New York City to issue an extreme cold weather alert for Thursday amid fears it could play havoc with the traditional Macy’s Thanksgiving Day Parade. The National Weather Service predicted temperatures in the low 20s with wind gusts up to 30 mph.

Climatology is not the same science as meteorology and one cold snap in late November would no more disprove alarmist global-warming theories than one deadly forest fire in California would prove them.

Twitter was not impressed:

Yet again another tweet that I swore was from a parody account rather than our @POTUS

— Roland Scahill (@rolandscahill) November 22, 2018

You really can’t be this daft. Can you?

— (((Howard Forman))) (@thehowie) November 22, 2018

You dumbfuck. Do you seriously not understand what climate change is?

— Greg Shugar (@GregShugar) November 22, 2018

It's called climate change, you nitwit. And extreme cold is another sign. You're so ignorant, no wonder you ran your businesses into the ground. https://t.co/BgUOcC9Ugo

— dr Sooz (@theonlydrsooz) November 22, 2018

The leader of the free world still hasn't figured out that Climate Change causes extreme weather conditions such as a 'brutal and extended cold blast.' https://t.co/c36MIixodH

— Ali Rafi (@TheAliRafi) November 22, 2018

A) It's called climate change
B) You still don't know the difference between weather and climate
C) You're the dumbest human being on planet earth https://t.co/UjtexffnvV

— Jeffrey Kahn (@JeffEKahn) November 22, 2018

Using a regional, temporary cold front to claim global warming is fake is like sitting in a room where nobody currently has cancer and concluding that cancer isn't real. https://t.co/2FNP7PqRto

— Adam Best (@adamcbest) November 22, 2018