shelf clouds
Ominous horizontal formations
Shelf clouds are low, horizontal, wedge-shaped cloud formations that appear along the leading edge of thunderstorms and other strong weather fronts.
They form when cool, dense air from a storm's downdraft pushes under warmer air, forcing it upward where moisture condenses into a distinctive elongated cloud.
Shelf clouds often have a dark, ominous appearance with a smooth or turbulent underside and typically signal approaching strong winds and heavy rain.
We watched the shelf cloud roll in before the storm hit.
Towering storm-producing cloud
- thunderheadTall storm-producing cloud
- supercellRotating severe thunderstorm
- outflow boundaryCold air surge boundary
- arcusCurved band or bow
squall line · mesocyclone · downdraft · inflow · convection · updraft · precipitation · turbulence
Fearful anticipation of harm
- menacingConveying threat or danger
- threateningExpressing intent to harm
- eerieDisturbingly strange
- broodingAnxiously dwelling on something
sinister · ominous · apocalyptic · otherworldly · surreal · unsettling · awe-inspiring · breathtaking
Tapered splitting tool
- arcCurved line segment
- horizontalParallel to the horizon
- layeredHaving multiple levels
- sweepingExtensive and far-reaching
rolling · smooth · striated · curved · elongated · ominous · dark · looming
Variable, forceful air currents
- severe weatherDangerous atmospheric phenomena
- lightningAtmospheric electrical discharge
- thunderStorm's acoustic aftermath
- downburstSudden descending windstorm
microburst · hail · heavy rain · flash flooding · wind shear · storm warning · weather alert · dangerous
cumulonimbus
Towering storm-producing cloud
- thunderheadTall storm-producing cloud
- supercellRotating severe thunderstorm
- outflow boundaryCold air surge boundary
arcus · squall line · mesocyclone · downdraft · inflow · convection · updraft · precipitation · turbulence · instability
foreboding
Fearful anticipation of harm
- menacingConveying threat or danger
- threateningExpressing intent to harm
- eerieDisturbingly strange
brooding · sinister · ominous · apocalyptic · otherworldly · surreal · unsettling · awe-inspiring · breathtaking · stunning
wedge
Tapered splitting tool
- arcCurved line segment
- horizontalParallel to the horizon
- layeredHaving multiple levels
sweeping · rolling · smooth · striated · curved · elongated · ominous · dark · looming · dramatic
gusty winds
Variable, forceful air currents
- severe weatherDangerous atmospheric phenomena
- lightningAtmospheric electrical discharge
- thunderStorm's acoustic aftermath
downburst · microburst · hail · heavy rain · flash flooding · wind shear · storm warning · weather alert · dangerous · unpredictable
shelf cloudsfunnel clouds
Rotating, dangling storm vortices
tornado · anvil clouds · waterspout · landspout · mesocyclone
shelf, cloud, shelves, shelved, shelving, clouds, cloudy, cloudless, cloudiness