Sailors World
weatherpage | clouds

name of the clouds high in
km

description of the clouds

forecast

Cirrus 10-13 mare's tails, thin wisps, steady NE E to S = ppt in 20-30 h
W NW to N = fair weather
Cirrocumulus 9-11 mackeral sky, may precede cold
or unstable warm front 		NE to S = ppt 15-20 h
Cirrostratus 10-12 gauzy sheets,
halos around the sun and moon 		NE E to S = ppt 15-25 h
Altostratus 5-7 "leaden' sky, steady NE to S = ppt 10-20 h
Altocumulus 3-5 large gray rolls, steady NE to S = ppt 15-25 h
Stratocumulus 1-2 layer of gray rolls in frontal weather may turn to
Nimbostratus
Stratus 1-2 low, gray, foglike, not a good indicator of future weather
Nimbostratus 2-4 dark gray towers, rain streaks, wind NE to S = ppt
Cumulus 1-5 cauliflower puffs,
if no vertical development=fair, 		can change to cumulonimbus
Cumulonimbus 2-10 stormy, thunderheads
with anvil tops, windy 		SW W to N = ppt and wind soon

Sailors World