Here are links to the webcams I am have used or am currently using to check on conditions before traveling:

Big Sur:

http://www.nepenthebigsur.com/weather-cam.html

Eastern Sierras:

Lone Pine/Mt Whitney

Independence

Glacier National Park:

http://www.nps.gov/glac/learn/photosmultimedia/webcams.htm

Laguna:

http://hotellaguna.com/beach-cam/

Aliso Beach

Lake Tahoe:

http://tahoetopia.com/webcams

Newport/Corona Del Mar

:http://www.surfline.com/surf-report/the-wedge-southern-california_4232/

http://www.surfline.com/surf-report/newport-pier-southern-california_4227/

Yosemite:

http://www.nps.gov/yose/learn/photosmultimedia/webcams.htm

Yosemite Time Lapse:

http://www.halfdome.net