© Michael Bruhn
Aspendale Gardens VIC 3195, Australia
Latitude: 38° 1' 23'' S
Longitude: 145° 7' 4'' E
08 March 2016 1557 (Local Time)
Camera direction: towards ESE
Image P/S code: P.9.12
Image I.D.: 5977
CL = 2, CM = 0, CH = 8
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Cumulus fractus fluctus
The feature of this image is the new supplementary feature fluctus. It is not a dominant or outstanding feature of Cumulus, but occurs quite frequently with Cumulus.
Fluctus is a relatively short-lived wave formation, usually appearing on the top surface and in the form of curls or breaking waves. Fluctus is commonly referred to as Kelvin-Helmholtz wave cloud.
Cumulus in the different stages of development – from fractus to humilis to mediocris – can be seen in this image. No cells progressed to congestus proportions and convective activity ceased shortly after sunset.
A thick partial veil of Cirrostratus nebulosus is near the horizon and a contrail can be seen on the top right.
Links in the image description will highlight features on the image. Mouse over the features for more detail.
© Michael BruhnAspendale Gardens VIC 3195, AustraliaLatitude: 38° 1' 23'' SLongitude: 145° 7' 4'' E08 March 2016 1557 (Local Time)Camera direction: towards ESECL = 2, CM = 0, CH = 8Image P/S code: P.9.12Image I.D.: 5977
Hot, dry northerly winds with a trough passing through from the north
© Commonwealth of Australia 2016, Bureau of Meteorology
The sounding is from 6 hours after photo but is more representative than the earlier sounding from 1015 hours local time.
It shows 3.8 °C radiational cooling in the lowest 72 m and a virtually dry adiabatic lapse rate to 700 hPa.
© University of Wyoming
The Himawari channel 3 visible satellite image shows Cumulus developing to the east, with small Cumulonimbus cells further east.
© Commonwealth of Australia 2016, Bureau of Meteorology / Japan Meteorological Agency