I witnessed this cloud formation yesterday Saturday 17th September 2016 at 10.15UTC here at Arnold, Nottinghamshire, looking NW. The cloud formation was visible for a couple of hours or so. Are they the 'new' Asperatus type? I would appreciate the views of those with greater knowledge than mine.
Regards to all
John
Asperatus?
- John Wilson
- Posts: 13
- Joined: Sat Dec 12, 2015 8:40 pm
- Location: Mapperley Plains, Arnold, Notts.
Asperatus?
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Re: Asperatus?
Yes John, it looks like asperatus or asperatis as some have called it.
It is a bit controversial because there is a perfectly good name for it already:
mammatus undulatus would fit well into the present WMO classification.
It is a bit controversial because there is a perfectly good name for it already:
mammatus undulatus would fit well into the present WMO classification.
Len
Wembury, SW Devon coast
83 m amsl
Wembury, SW Devon coast
83 m amsl
- John Wilson
- Posts: 13
- Joined: Sat Dec 12, 2015 8:40 pm
- Location: Mapperley Plains, Arnold, Notts.
Re: Asperatus?
Thank you Len. Nice to see something a bit rare or new in this neck of the woods.
All the best
John
All the best
John
- Nicholas Gardner
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- Location: Rural riverside valley location near the village of Newton Poppleford and 2 km from the sea.
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Re: Asperatus?
Asperatis cloud I took a photo of a few years back (see attached image):
Otter Valley Weather
Near Newton Poppleford, Sidmouth - Devon
50:41N 3:17 W; 20 metres AMSL; Station Grade B-BAAA37
http://www.ottervalleyweather.me.uk
Near Newton Poppleford, Sidmouth - Devon
50:41N 3:17 W; 20 metres AMSL; Station Grade B-BAAA37
http://www.ottervalleyweather.me.uk
- Martin Rowley
- Posts: 34
- Joined: Sat Dec 12, 2015 8:32 pm
- Location: West Moors, East Dorset
Re: Asperatus?
... I wouldn't be calling that cloud (as in original post) as anything other than Sc stratiformis opacus undulatus. Not even mammatus (from that shot - but photos can be notoriously deceptive).
Asperatus/Asperatis has a much more "tortured"/intorted look about it . . . see examples here:-
http://cloudappreciationsociety.org/asp ... nt-page-2/
Martin.
Asperatus/Asperatis has a much more "tortured"/intorted look about it . . . see examples here:-
http://cloudappreciationsociety.org/asp ... nt-page-2/
Martin.
Martin Rowley
West Moors, East Dorset
Lat: 50deg 49.25'N, Long: 01deg 53.05'W
Height (amsl): 17 m (56 feet)
COL category: C1 overall/TRSHEUN=CC-A03-
West Moors, East Dorset
Lat: 50deg 49.25'N, Long: 01deg 53.05'W
Height (amsl): 17 m (56 feet)
COL category: C1 overall/TRSHEUN=CC-A03-