Astronomy Picture of the Day
    


Lenticular Clouds Over Washington
<< Yesterday 4.11.2012 Tomorrow >>
Lenticular Clouds Over Washington
Credit & Copyright: Tim Thompson
Explanation: Are those UFOs near that mountain? No -- they are multilayered lenticular clouds. Moist air forced to flow upward around mountain tops can create lenticular clouds. Water droplets condense from moist air cooled below the dew point, and clouds are opaque groups of water droplets. Waves in the air that would normally be seen horizontally can then be seen vertically, by the different levels where clouds form. On some days the city of Seattle, Washington, USA, is treated to an unusual sky show when lenticular clouds form near Mt. Rainier, a large mountain that looms just under 100 kilometers southeast of the city. This image of a spectacular cluster of lenticular clouds was taken last December.

January
February
March
April
May
June
July
August
September
October
November
December
 < November 2012  >
Mo Tu We Th Fr Sa Su



1234
567891011
12131415161718
19202122232425
2627282930

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: lenticular clouds - weather
Publications with words: lenticular clouds - weather
See also:
All publications on this topic >>