29:
126:, meaning "full of gaps". This type of cloud appears as holes present in an altocumulus cloud cover resembling a honeycomb. It is considered to be rare, since it is typically short-lived. Lacunosus cloud types (including this one) forms when a layer of cold air and a layer of warmer air come in contact with each other. This then causes the cold air to sink in the form of localized
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200:"Valuable Information About Altocumulus Clouds That's Worth a Read - Science Struck"
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119:
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67:
alto-, meaning high, cumulo-, meaning heap, and lacunosus, meaning full of gaps
28:
759:
748:
787:
127:
54:
130:. These downdrafts then strike through the cloud and create the holes.
1147:
252:
72:
62:
258:
and selected species, supplementary features, and other airborne
148:"Lacunosus Cloud Variety: Perforated Holes | WhatsThisCloud"
225:
923:
841:
Cumulus castellanus (unofficial alternative name for Cu con))
373:
No differentiated sub-types; tends to resemble cirrostratus
174:"Cirrocumulus Lacunosus Cloud - EPOD - a service of USRA"
847:
term for Cu con and "Cu cas" is
Towering cumulus ))
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21:
1168:(Mother cloud)+mutatus (e.g. cumulomutatus (cumut)
1165:(Mother cloud)+genitus (e.g. cumulogenitus (cugen)
33:Altocumulus stratiformis lacunosus cloud, next to
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345:Nacreous polar stratospheric clouds (PSC)
266:Latin terminology except where indicated
569:Mutatus non-height specific (see below)
139:
18:
7:
971:Stratocumulus stratiformis (Sc str)
966:Stratocumulus lenticularis (Sc len)
176:. 18 September 2020. Archived from
99:Perforated with round, frayed holes
956:Stratocumulus castellanus (Sc cas)
512:Cirrocumulus stratiformis (Cc str)
507:Cirrocumulus lenticularis (Cc len)
150:. 13 November 2021. Archived from
122:cloud. The term lacunosus is from
14:
628:Altocumulus stratiformis (Ac str)
623:Altocumulus lenticularis (Ac len)
497:Cirrocumulus castellanus (Cc cas)
733:Cumulonimbus capillatus (Cb cap)
608:Altocumulus castellanus (Ac cas)
366:polar stratospheric clouds (PSC)
202:. 3 October 2020. Archived from
53:
912:St-only genitus cloud and other
548:Cirrostratus nebulosus (Cs neb)
981:Stratocumulus volutus (Sc vol)
961:Stratocumulus floccus (Sc flo)
742:Cb-only supplementary features
543:Cirrostratus fibratus (Cs fib)
1:
919:Stratus silvagenitus (St sil)
777:Cumulonimbus flumen ((Cb flu)
770:Cb-only accessories and other
618:Altocumulus lacunosus (Ac la)
502:Cirrocumulus floccus (Cc flo)
728:Cumulonimbus calvus (Cb cal)
633:Altocumulus volutus (Ac vol)
613:Altocumulus floccus (Ac flo)
307:Noctilucent type III billows
682:Nimbostratus virga (Ns vir)
425:Cirrus castellanus (Ci cas)
1231:
903:Stratus nebulosus (St neb)
837:Cumulus congestus (Cu con)
831:Cumulus mediocris (Cu med)
466:Cirrus vertebratus (Ci ve)
310:Noctilucent type IV whirls
760:Cumulonimbus murus ((mur)
749:Cumulonimbus cauda ((cau)
440:Cirrus spissatus (Ci spa)
304:Noctilucent type II bands
26:
16:Type of altocumulus cloud
898:Stratus fractus (St fra)
826:Cumulus humilis (Cu hum)
805:Variable vertical extent
755:Cumulonimbus incus (inc)
430:Cirrus fibratus (Ci fib)
301:Noctilucent type I veils
295:Polar mesospheric clouds
976:Stratocumulus Undulatus
461:Cirrus intortus (Ci in)
445:Cirrus uncinus (Ci unc)
435:Cirrus floccus (Ci flo)
1116:Supplementary features
996:supplementary features
1159:and human-made clouds
655:Altostratus undulatus
364:Nitric acid and water
116:Altocumulus lacunosus
22:Altocumulus lacunosus
1177:Homomutatus (homut)
1173:Homogenitus (hogen)
1143:Praecipitatio (pra)
355:Lenticular nacreous
35:altocumulus floccus
939:Stratocumulus (Sc)
926:(Fg) Surface level
867:Trade wind cumulus
352:Cirriform nacreous
1192:
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1188:
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1102:Translucidus (tr)
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712:Towering vertical
709:Cumulonimbus (Cb)
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665:Nimbostratus (Ns)
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454:Ci-only varieties
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1047:Actinoform cloud
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783:Overshooting top
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1123:Asperitas (asp)
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1077:Duplicatus (du)
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1049:(Stratocumulus)
1022:accessory cloud
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1157:Mother clouds
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1107:Undulatus (un)
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1082:Lacunosus (la)
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1133:Fluctus (flu)
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1097:Radiatus (ra)
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1011:Funnel cloud)
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563:mutatus cloud
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327:Stratospheric
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281:Extreme-level
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206:on 2020-10-03
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180:on 2020-09-18
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154:on 2021-11-13
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118:is a type of
117:
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105:Precipitation
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1041:Pannus (pan)
1031:Pileus (pil)
1003:Arcus ((arc)
881:Stratus (St)
802:Cumulus (Cu)
779:Beaver tail)
617:
581:Medium-level
390:Tropospheric
260:hydrometeors
208:. Retrieved
204:the original
194:
182:. Retrieved
178:the original
168:
156:. Retrieved
152:the original
142:
115:
114:
79:full of gaps
78:
42:Abbreviation
1215:Cloud types
1148:Virga (vir)
1138:Mamma (mam)
1128:Cavum (cav)
1087:Opacus (op)
1036:Velum (vel)
1009:Tuba ((tub)
762:Wall cloud)
751:Tail cloud)
668:Multi-level
408:Cirrus (Ci)
291:Noctilucent
273:Mesospheric
210:13 November
184:13 November
158:13 November
120:altocumulus
77:lacunosus (
1199:Categories
1061:Non-height
398:High-level
134:References
128:downdrafts
96:Appearance
91:(Above ft)
1070:Varieties
1024:and other
862:Horseshoe
788:Hot tower
699:Low-level
675:Varieties
1063:specific
337:15–30 km
283:80–85 km
109:uncommon
86:Altitude
1205:Cumulus
1045:Other-
948:Species
890:Species
821:Fractus
813:Species
720:Species
600:Species
535:Species
489:Species
417:Species
400:3–18 km
89:Above m
73:Variety
1210:Clouds
1005:Shelf)
701:0–2 km
583:2–8 km
256:genera
50:Symbol
855:Other
293:(NLC)
253:Cloud
124:Latin
63:Genus
45:Ac la
845:ICAO
212:2021
186:2021
160:2021
924:Fog
264:WMO
1201::
262:-
843:(
839:(
835:(
245:e
238:t
231:v
214:.
188:.
162:.
81:)
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