Movies

A movie tells a thousand pictures

big weather

Steaming swamp
Think hot asphalt after a cool rain

From the distance it looked like smoke …

Or maybe dust kicked up from the limerock road.

It looked primordial, but it was actually super chilled

Only upon closer inspection did we see it was steam.

The source?

Similar to a hot asphalt road steaming after getting cooled down by an afternoon shower, the wisps of water vapor hovering over the cypress stand were the result of an ice-cold drenching from a super thunder cell.

The super cell, looking north, about 15 mile east of the strand

As good fortune would have it, I actually took a photo of the thunderstorm about an hour before and 15 miles upwind from the steaming strand. The air among the wisps was incredibly cooled and the fragrance from the cypress intense. Landing and walking in the water was further proof.

The water was chilled as if it had hailed.

birds eye view

Origin of domes
And how geology controls the show

What came first:

The depression or the dome?

Answer: Cypress domes form in shallow surficial depressions in the swamp’s underlying caprock, but that doesn’t explain why some depressions capped by a cypress dome and others, right next door, form a tree-free herbaceous marsh.

It might have something to do with the thickness of the marl.

Cypress dome and circular marsh

Or maybe fire frequency or flooding depth also factors in.

Mark it down as another mystery of the swamp.