Clouds & Fronts

_______ AIR MASSES: • Move into colder air

masses• Move ___________

AHEAD OF WARM

FRONTS:High Clouds

cirrus cirrostratus

Middle Clouds altostratus __________ A WARM

FRONT:_____ & possibly

thunderstorms

Red half-circles show direction front is moving. (rising suns=warm front

Cooler prior to front

http://www.windows2universe.org/earth/Atmosphere/tstorm/warm_front.html

Clouds Formed by Warm Fronts

Altocumulus Cirrocumulus Altostratus Cirrostratus

Nimbostratus Stratocumulushttp://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/hgh/crs.rxml

______ Air Masses: Move _______ warmer air massesMove very ________Cause a sudden drop in _____________________High ___________Push warm air up causing:Cumulus or Cumulonimbus clouds & thunderstormsAfter a cold front passes:cool, dry stratus and stratocumulus clouds or ___________ skies

____ Fronts

http://www.windows2universe.org/earth/Atmosphere/tstorm/cold_front.html

Blue arrows show direction of cold front. Blue “icicles”

Clouds Formed by Cold Fronts

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/hgh/crs.rxml

Nimbostratus

Stratocumulus

http://www.windows2universe.org/earth/Atmosphere/clouds/formation_fronts.html

Adapted from Information/Images

by: