Huge thunderstorm moving off of the Cascades is highlighted by the sunset. Snoqualmie Valley, Washington.

Time to go inside! A very active thunderstorm at night reveals numerous cloud-to-ground lightning strikes. Snoqualmie Valley, Washington.

Cirrus clouds fanning across the sky ahead of a warm front. Snoqualmie Valley, Washington.

Mount Rainier lenticular cloud seen from the air.

Rainbows over Case Inlet, Washington.

Sunrise behind Mount Rainier as the mountain summit casts a shadow on the clouds. Case Inlet, Washington.

Sunrise behind Mount Rainier as the mountain summit casts a shadow on the clouds. Case Inlet, Washington.

Sunrise across Case Inlet as fog burns off leading to a clear day. Case Inlet. Washington.

Virga blowing side-ways out of the leading edge of a heavy spring shower. Hanford Reach, Washington.

Altrostratus clouds of an incoming front over Central Washington.

Towering cumulus clouds over the North Cascades seen from the Snoqualmie Valley, Washington.

Cirrocumulus clouds over Western Washington.

Condensation trails across an Eastern Washington sky show high-level moisture in the atmosphere.

Massive thunderstorm cloud with hints of a rotating wall cloud north of Spokane, Washington.

Virga blowing side-ways out of the leading edge of a heavy spring shower. Hanford Reach, Washington.

Fair weather alto cumulous clouds. Diamond Lake, Washington.

Moderate developed cumulus cloud. Kettle Mountain Range, Washington.

Thunderstorm developing in the western Cascade foothills. Snoqualmie Valley, Washington.

Heavy spring shower with hail makes the clouds seem to touch the ground. Kittitas Valley, Washington.

Cirrus clouds showing there is moisture high in the atmosphere. Snoqualmie Valley, Washington.

Sunset rays of light highlight an evening thunderstorm complete with a rainbow over the Snoqualmie Valley, Washington.