The surprising notice was still in place Wednesday morning.

\"Definitely not your average day in South Florida this morning,\" the National Weather Service tweeted, along with a photo of a fallen iguana.

\"PHOTO:
Wilfredo Lee/AP
PHOTO: An iguana lies draped on a tree, Jan. 22, 2020, in Surfside, Fla.
>

The NWS assured the public that the lizards, which are cold blooded, are not dead.

Iguanas are not native to Florida and considered an invasive species, according to the state's Fish and Wildlife Conversation Commission. They were first reported in the state in the 1960s in Hialeah, Coral Gables and Key Biscayne along Miami-Dade County’s southeastern coast.

Social media posts poured in Wednesday morning, as early risers got a first-hand look at the downed iguanas.

Verification of the @NWSMiami iguana warning! That boy ain’t going nowhere... young one couldn’t take it (might be dead) pic.twitter.com/P8d2y3PzIO

— Eric Blake 🌀 (@EricBlake12) January 22, 2020

⚠️WATCH OUT! ⚠️Here’s proof of cold stunned iguanas. They can fall from trees. Thank you to our Storm Team 5 meteorologist @SteveWPTV for snapping this picture. FYI It’s not dead. @WPTV #FloridaWinter #amcrew pic.twitter.com/fTnajB19rc

— Janny Rodriguez (@JannyReports) January 22, 2020

Just FYI.... everyone in #SouthFlorida is FREAKING OUT right now..

It’s 40 degrees outside.... feels like 32... and frozen iguanas are falling from the sky. #FrozenFlorida #FloridaWinter pic.twitter.com/Wrc9KvYvko

— Amanda Guerra (@AmandaGuerraCBS) January 22, 2020

While cold temperatures continued Wednesday, they have not yet broken any records.

The coldest temperature for Jan. 22 was back in 1985, when Miami saw a low of 30 degrees and Fort Lauderdale felt a low of 29 degrees, according to NWS.

In the Florida Keys, residents experienced the coldest temperatures in five years, ranging from the low 40s to low 50s.

ABC News' Max Golembo contributed to this report.

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