Skip to main content
Clear icon
62º

Glowing clouds in Central Florida? Here’s the science behind this phenomenon

‘Twilight phenomenon’ lights up Central Florida skies

Clouds glowing in Ocala (Copyright 2024 by WKMG ClickOrlando - All rights reserved.)

ORLANDO, Fla. – Early Wednesday morning, SpaceX launched another round of Starlink satellites into orbit from Cape Canaveral.

These morning rocket launches, just before sunrise, tend to catch the eyes of many across Central Florida because of the clouds leftover after the rocket heads into space.

Another day in paradise
Celena Garcia

Another day in paradise

Orange Park

These type of clouds have been nicknamed “light up clouds” due to the fact that the clouds appear to brightly glow in the middle of the dark night sky.

This is due to the lingering exhaust from the rocket. The water vapor within the exhaust freezes into tiny ice crystals in the higher elevations where the airmass is much colder.

These ice crystals are suspended high enough in the sky to catch the reflection of the sunlight that still is below the horizon to those on the ground. This gives the illusion that the clouds are glowing in the dark.

This is called the “twilight phenomenon” with the clouds termed “noctilucent clouds.”

Sunrise this morning in Silver Springs Shores, Ocala
TBurley

Sunrise this morning in Silver Springs Shores, Ocala

While natural noctilucent clouds are quite rare across the country, we tend to see them more often in Central Florida because of those predawn rocket launches.

PinIt Pictures of Glowing Clouds

Get today’s headlines in minutes with Your Florida Daily: