Author Topic: Cloud Types Listed  (Read 12957 times)

Janet Jaguar

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Cloud Types Listed
« on: August 01, 2012, 06:07:45 pm »


Discussions on cloud types and how our log keepers are really noting them found in this topic, and also in The Logs section, Cloud Type Questions.  Also see charts and links below, particularly the illustrations produced by the US Navy Hydrographic Office in 1897.

A list, including unofficial abbreviations used in the logs:

Cloud Name  Codes, various short description 
Alto-Cumulus A-Cum / A-Cu / Acneat rolls or long bands
Alto-Cumulus Castellatus     Acctower-like projections that billow upwards
Alto-Stratus A-Str / A-S / AStrat / Asthin gray or blue sheet
CirrusCir / Cihigh and wispy
Cirro-CumulusCir-Cum / Cum-Cir / Ci-Cu / Cu-Ci / Ccresembling ripples that waves leave in sand
Cirro-StratusCir-Str / Cir-Strat / Ci-St / Ci-S / Cs  thin veil of ice crystals
CumulusCum / Cupuffy pile of cloud
Cumulo-NimbusCum-Nim / Nim-Cum / Cu-Ni / Ch / Cn / Cbthunderstorm clouds can produce heavy rain, high winds, hail, and tornadoes
Cumulo-Nimbus mammatusCmudder shaped protuberances hanging from the bottom of clouds
Fracto-CumulusFr-Cu / Fc / Fr ragged unorganized and unstructured puffs of cumulus cloud
Fracto-Nimbus Fr-N Layer of nimbus separated into shreds or small loose clouds under a large nimbus - "scud"
Fracto-StratusFr-SLayer of stratus broken into shreds broken into irregular shreds
Mammato-CumulusM-CuCumulus with a mammillated lower surface
NimbusNim / Ni / N produces precipitation
Nimbo-StratusNim-Str / Nimb-Strat / Strat-Nimb / Ni-St / Ns    dense gray cloud layer covers sky, may block the sun light
StratusStr / Strat / St  / S a flat layer of cloud
Strato-CumulusCum-Str / Str-Cum / S-Cu / Cu-Strat / Scsheet of parallel rolls with flat bottoms
V clearCAVUceiling and visibility unlimited
   

Use drop-down codes, or TWYS.  The software reads spaces, dashes and punctuations as equal dividers between codes.




The British Met Office has a wonderful pdf document defining clouds in great detail:
http://www.metoffice.gov.uk/media/pdf/s/0/12_0674_Factsheet_1_Clouds.pdf
NOAA has a good site on cloud classification, with lots of good pictures:
http://oceanservice.noaa.gov/education/yos/resource/JetStream/synoptic/clouds_max.htm
Wikipedia also has a remarkable list of cloud types:
http://en.wikipedia.org/wiki/List_of_cloud_types
The World Meteorogical Society's International Cloud Atlas is now online at:
https://www.wmocloudatlas.org/home.html

Discussions on cloud types and how our log keepers are really noting them found in this topic, and also in The Logs section, Cloud Type Questions




Here are some links and images from our logbooks:

Abbreviated Cloud Definitions (includes codes) and Description of Cloud Forms (includes codes) are particularly useful.










« Last Edit: March 25, 2017, 09:13:07 am by Caro »

Janet Jaguar

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Re: Cloud Types Listed
« Reply #1 on: February 17, 2014, 12:05:15 pm »
And here for our education and awe are 60 insane cloud formations from around the world with names and explanations.

Example #1: Lenticular cloud, Mt. Fuji, Japan  Click to enlarge.


Janet Jaguar

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Re: Cloud Types Listed
« Reply #2 on: March 17, 2015, 07:40:33 pm »









Upper Clouds
     average altitude 9000 meters:






Intermediate Clouds
     altitude between 3000 and 7000 meters:








Lower Clouds
     altitude under 2000 meters:










Clouds of Diurnal Ascending Currents
     Apex 1800 under 2000 meters; base 1400 meters:









     Apex 3000 to 8000 under 2000 meters; base 1400 meters:




High Fogs
     altitude under 1000 meters:






« Last Edit: March 17, 2015, 07:49:32 pm by Janet Jaguar »