Some surprisingly chilly temperatures have pushed their way into South Florida this week, and this morning was particularly frigid. In fact, the air is so unseasonably cold that weather officials are warning residents across the southern tip of the state to be on the lookout for falling iguanas. Yes, you read that correctly.

The reptiles, which love warm weather and have a habit of hanging out in trees, don’t do well when the temperature drops to the 20s and 30s. As cold-blooded animals, they can’t control their own body temperature and will actually “freeze up” if they get too chilly. The stunned creatures are then at risk of losing their grip and tumbling to the ground, hitting whatever (or whoever) happens to be standing below.

The National Weather Service even has a nickname for this phenomenon, calling it “iguana rain.” When the reptiles become rigid, they’re not actually dead, but the risk of injuries from falling is high. If they can avoid physical damage and ride out the cold snap, they generally recover once temperatures climb again.

Twitter is already packed with photos from Florida residents showing iguanas sitting around in a state of confused stupor. That’s just what happens when your blood starts, you know, not flowing like it should.

The good news is that temperatures are already rebounding and much of South Florida is expected to be nice and warm in the coming days, with highs in the 70s and lows not creeping below the 50s. That’s welcome news for the reptiles, but if you happen to be in South Florida, keep an eye out for some iguanas that might need a helping hand.

Mike Wehner has reported on technology and video games for the past decade, covering breaking news and trends in VR, wearables, smartphones, and future tech. Most recently, Mike served as Tech Editor at The Daily Dot, and has been featured in USA Today, Time.com, and countless other web and print outlets. His love of reporting is second only to his gaming addiction.