Description: Anvil of large cumulonimbus thunderhead during early stages of developing storm. Source: http://www.photolib.noaa.gov/nssl/nssl0035.htm Image...
Description: Cumulonimbus clouds with anvil top Source: http://www.photolib.noaa.gov/historic/nws/wea00100.htm Image ID: wea00100, Historic NWS Collection...
Description: Cumulonimbus calvus clouds Source: http://www.photolib.noaa.gov/historic/nws/wea00079.htm Image ID: wea00079, Historic NWS Collection Photo...
Description: Wall cloud with tail cloud. Source: http://www.photolib.noaa.gov/nssl/nssl0108.htm Image ID: nssl0108, National Severe Storms Laboratory...
Description: Twin cumulonimbus clouds with anvils at sunset Source: http://www.photolib.noaa.gov/historic/nws/wea00030.htm Image ID: wea00030, Historic...
Description: Developing cumulonimbus clouds with several pileus caps Source: http://www.photolib.noaa.gov/historic/nws/wea00097.htm Image ID: wea00097...
Description: Developing cumulonimbus clouds over Black Mountains Source: http://www.photolib.noaa.gov/historic/nws/wea00098.htm Image ID: wea00098, Historic...
Description: Developing cumulonimbus Source: http://www.photolib.noaa.gov/historic/nws/wea00104.htm Image ID: wea00104, Historic NWS Collection Location:...
Description: Cumulonimbus Source: http://www.photolib.noaa.gov/historic/nws/wea00102.htm Image ID: wea00102, Historic NWS Collection Location: Fort Lauderdale...
http://www.crh.noaa.gov/iwx/program_areas/wxpics/clouds_sun/032003kinderhook2.jpg ; dead link, now at https://www.weather.gov/iwx/suncldpics NOAA Image ID:...