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Fair weather but change of weather expected within 24 hrs.
Cirrus
Usually bring precipitation within the next 9-18 hrs as front approaches.
Cirrostratus
Fair but changing weather.
Cirrocumulus
Usually form ahead of storms with constant rain or snow within 6-12 hrs.
Altostratus
Can bring thunderstorms in late afternoon if the morning is warm and humid.
Altocumulus
Sometimes (ie risk of) drizzle or rain.
Stratus
Rain rarely occurs. Slow to clear.
Stratocumulus
Showers, steady or downpours of rain or snow.
Nimbostratus
Fair Weather
Cumulus
Heavy rain or hail with strong winds. Thunderstorms and snow storms possible.
Cumulonimbus
Severe weather including tornadoes.
Mammatus
Clouds caused by wave wind patterns caused by mountains.
Lenticular
Defined as when the visability near the Earth's surface is less than 1 km due to moisture in the air.
Fog