Those are cirrus clouds. Note: If you see those, they mean there will be precipitation within 24 hours.
Cirrus clouds.
Cirrus cloud
cirrus
cirrus
Cirrus clouds are thin, wispy clouds usually formed at high altitudes.
Wispy, feathery cluds are called cirrus clouds. Cirrus comes from a word meaning "a curl." Cirrus clouds form at high altitudes, usually above 6 km, and at low temperatures. They are made of ice crystals and indicate fair weather.
Cirrus Clouds!
Cirrus clouds are light and feathery in appearance. These high-altitude clouds are made up of ice crystals and typically indicate fair weather.
cirrus
stratus
just high altitudes
They are called Cirrus Clouds and are at 16,500 - 45,000 feet. They are made from tiny ice particles. Cirrus clouds are feathery looking because of the very high winds at that altitude.