![Mammatus clouds over northern Illinois on a warm evening in June](https://www.freestock.com/450/freestock_32408845.jpg)
![Mammatus clouds over northern Illinois on a warm evening in June](https://www.freestock.com/450/freestock_32408845.jpg)
Free Stock Photo
Mammatus clouds over northern Illinois on a warm evening in June
Category Transportation, Nature
Large - JPG - 4288 x 2848 px @ 300 dpi
RELATED KEYWORDS
- atmosphere
- disturbance
- threatening
- lobes
- clouds
- formation
- phenomenon
- pouch-like
- mammatus
- obliterate
- spring
- horizontal
- gray
- northern illinois
- weather
- midwest
- clumps
- sky
- imminent
- opaque
- storm
- meteorology
- ominous
- roiling
- abstract
- gathering
- unstable
- impending
- june
- system
- obscure
- powerful
- background
- instability
- sagging
- thunderstorm
- evening
- mammatocumulus
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