Question: where are nimbus clouds found in the sky

title: Nimbostratus cloud
text: Nimbostratus has a diffuse cloud base generally found anywhere from near surface in the low levels to about 3,000 m ( 9,800 ft ) in the middle level of the troposphere . Although usually dark at its base , it often appears illuminated from within to a surface observer . Nimbostratus usually has a thickness of about 2000 to 4000 m . Though found worldwide , nimbostratus occurs more commonly in the middle latitudes . It is coded C 2 on the SYNOP report . 

Answer: answer: Nimbostratus has a diffuse cloud base generally found anywhere from near surface in the low levels to about 3,000 m in the middle level of the troposphere.   Though found worldwide, nimbostratus occurs more commonly in the middle latitudes.