Lines

A layer of altocumulus radiatus with some contrails above cumulus humilis, all blown into lines by the wind.

Lively sky

Rapidly changing sky.

High ice

A layer of grainy cirrocumulus (formed of ice crystals) above scattered cumulus humilis.

Hooked cirrus

Late morning

Sign of an advancing depression

Ripples of cirrus fibratus at a high altitude.

Blobby cloud

Heard it was windy today but as I spent most of it indoors, can't confirm that.

Heap

A few developing cells escaped a layer of stratocumulus.

Cumulus congestus

Bright sunny day - very warm for a while.

Gap

Sunny intervals

Fringes

My birthday, and it threatened to rain later in the day.

Streaks

Odd streaky pattern in patches of cloud. Not sure how to describe it.

Moon by day

Cumulus humilis

Mostly blue sky.

Cumulus fractus, shadows and sunlight

Evening contrails

Iridescent pileus cloud

Weirdly lit cloud, originally uploaded by Natmandu.

Nathan (my son) saw this over Siem Reap, Cambodia. Lucky him!

Hooked cirrus

The first photo, of hooked cirrus, was taken early in the day. The second photo, taken over my neighbour's shed roof, shows cumulus, altostratus and cirrus in the evening.

Mostly stratus

We've had a lot of rain lately and not many interesting clouds - just grey skies.