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These are Mummatus clouds, a fairly new cloud classification that's only been recognized for the last few years. Their name derives from the Latin word "mamma", meaning udder or breast (for fairly obvious reasons!). Their formation is still fairly mysterious, with more than ten proposed mechanisms. They're often associated with severe thunderstorms.

from CityLab

Climate Change in the Southeastern U.S. Could Mean Endless Severe Thunderstorms

Continuing my blogging series on the awesome parenting book, The Whole-Brain Child by Daniel Siegel and Tina Payne Bryson. "Whole-Brain Child Strategy 'Let the Clouds Roll By: Teaching That Feelings Come and Go.'"

Survival Guide: Recognize Which Clouds Mean Danger. Wall clouds may rotate. If they do they are a sign of violent thunderstorms and possible tornados.

from Global News

Thunderstorms 101: Derechoes, supercells, multi-cells…what it all means

You may hear meteorologists toss around words like "supercell," "downbursts," "microburst," or "derecho." That's a lot of weather terminology, which can be confusing. Here's a primer on a few storm words.


5 Life Lessons from a Former Mean Girl

I am picking up a thunderstorm about 30 miles due south of here

from All That Is Interesting

The Seven Most Stunning Cloud Formations

Mammatus clouds are quite possibly the most incredible, bizarre cloud formation in the world. Often forming on the underside of a thunderstorm’s anvil, they have a unique, often ominous, pouch-like shape. Mammatus clouds are also called mammatocumulus, meaning “mammary” or “breast” clouds.

Mammatus, also known as mammatocumulus (meaning “mammary cloud” or “breast cloud”), is a meteorological term applied to a cellular pattern of pouches hanging underneath the base of a cloud. Derived from the Latin mamma (meaning “breast”).


The Native American Symbols and their Meanings were usually based on geometric portrayals of celestial such as the sun, moon and stars, natural phenomena such as thunderstorms and rain and animal designs including eagles, serpents and spiders. Avanyu symbolized a benevolent but fearful creature