CLOUDS Cumulus form in rising air currents and

CLOUDS Cumulus form in rising air currents and indicate unstable air Regional Gliding School Stratus form in horizontal layers and indicate stable air

Families: LOW (STRATO) n MIDDLE (ALTO) n HIGH (CIRRO) n VERTICAL DEVELOPMENT n Regional Gliding School Height of Bases: surface - 6, 500 ft - 23, 000 ft 16, 500 ft - 45, 000 ft 1, 500 ft - above

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CIRRUS (CI) n Thin Regional Gliding School delicate wisps

CIRRO-CUMULUS (CC) n Thin cottonball like Regional Gliding School

CIRRO-STRATUS (CS) Thin high sheet n Produces “Halo” effect n Often indicates the approach of a warm front n Regional Gliding School

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ALTOCUMULUS (AC) <Layers Regional Gliding School of rounded masses of cloud

ALTOSTRATUS (AS) g Thick grey clouds that often cover the entire sky g May Regional Gliding School give some light rain or snow

ALTOCUMULUS CASTELLANUS (ACC) g Altocumulus Regional Gliding School with turrets

NOTE: You must use the buttons in the Confirmation Stage Regional Gliding School

Meteorology Clouds Let's try a few review questions on Meteorology: Question #1 - Regional Gliding School What is the height of middle clouds? A 1, 500 -6500 feet B 6, 500 -23, 000 feet C 16, 500 -45, 000 feet D 23, 000 -45, 000 feet

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Meteorology Clouds Let's try a few review questions on Meteorology: Question #2 - Regional Gliding School What type of cloud produces a halo effect? A Altostratus B Altocumulus Castellanus C Cirrostratus D Cirrocumulus

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STRATUS (ST) <A uniform layer, like fog, but not resting on the ground <Drizzle Regional Gliding School often falls from stratus

STRATUS FRACTUS (SF) <Pieces Regional Gliding School of Stratus

STRATOCUMULUS (SC) <A thin layer of rounded masses of cloud Regional Gliding School

NIMBOSTRATUS (NS) <A low layer of uniform, dark grey cloud Regional Gliding School

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CUMULUS (CU) Thick n Rounded and lumpy n Resemble cotton balls n Regional Gliding School

Cumulus Fractus (CF) <Broken Regional Gliding School Cumulus

TOWERING CUMULUS (TCU) n Cumulus that builds up into high towering masses n Rough air underneath n Heavy icing in cloud Regional Gliding School

CUMULONIMBUS (CB) < Heavy masses of cumulus < Anvil top < Violent vertical currents < CB clouds should be avoided by all aircraft Regional Gliding School

Clouds of Vertical Development bases as low as 1, 500 feet n composed of: n – water droplets – supercooled water droplets – ice crystals. Regional Gliding School

NOTE: You must use the buttons in the Confirmation Stage Regional Gliding School

Meteorology Clouds Let's try a few review questions on Meteorology: Question #3 - Regional Gliding School What are clouds of vertical development composed of? A Water droplets B Ice crystals C Supercooled water droplets D All the above

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Meteorology Clouds Let's try a few review questions on Meteorology: Question #4 - Regional Gliding School What cloud is thick gray and often covers the entire sky? A Altostratus B Cirrus C Altocumulus D Cirrostratus

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Meteorology Clouds Congratulations!! You have now completed the Clouds lesson of the Meteorology Module. Of course, this lesson is always available to you for future reference if required. You are now ready to move along to the next Meteorology lesson you have not completed or to any other module you wish. You can advance to the Self Test Module if you feel ready to challenge the final exam. Good Luck! Regional Gliding School