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Search: asperitas

An asperitas formation over Steubenville Ohio, US.
September 18, 2020 In Asperitas, Undulatus
An asperitas formation over Steubenville Ohio, US.
September 16, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Very impressive and dramatic capture of Asperitas Dave. The infrared emphasizes the drama very well. Next one is a lot less dramatic, but the B&W approach is another way to enhance the drama a bit.
September 14, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

In my last posting I succumbed to a moment of doubt about ID’s I had provided for several of my photos. Thanks to Hans for his insight and many thanks to the members posting in the Cloud Identification Help forum. This image is composed from...
September 8, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Great Asperitas lacunosus Dave. The infrared makes it even more dramatic. And I like your thoughts on asperitas Michael. Dave: you cn find more examples of asperitas lacunosus when you go the gallery and select on these classifications. You will find them all. Altocumulus and...
September 7, 2020

Reply To: Writhing Cloud Phenomena

Thanks for this question, Dave. And for your fine answer, Dan! It is indeed an example of asperitas. The formation mechanism is never too clear, but one hypothesis is that the chaotic wave features in the vicinity of a storm are to do with gravity...
September 6, 2020

Reply To: Writhing Cloud Phenomena

Hi, Dave! This is a fine example of the supplementary feature cloud known as asperitas: the cloud which Gavin Pretor-Pinney of this very society named! I’m not entirely sure what the mechanisms behind the flowing waves (Gavin will hopefully post his hypothesis/hypotheses here); however, one...
September 4, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Dave..I can only suggest that there exists Aperitas Laconosus. I’ve witnessed such a development on many an occasion, usually at the end of an Asperitas event. Again. its a timing issue.  What actually is the physical cause, the physics responsible for the development we call...
September 3, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

I’ve gotten off track here and am having to rethink what I’ve been calling Asperitas cloud features. Today’s Cloud-a-Day of Stratocumulus lacunosus makes it clear that that has been a dominant feature in what I have been calling an Asperitas event. It is likely that...
September 3, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Nice shot Dave. Its a matter of timing. I see mostly asperitas undulatus in the Phoenix Arizona area. So ,yes, there is more of a structure to what I witness. Its a matter of timing like any wave activity. To me, Asperitas is upside down...
September 2, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Thanks, Michael, I think I’m now heading in the right direction on processing at a smaller scale. My first photos were a whopping 2048 x 1368 when submitted. I like your photo, Arizona Asperitas#781. There seems to be some orderly structure to the chaos that...
August 31, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Great show you had in Missouri there Dave! .. In very general terms..I reduce my photos from full size down to about 4″ X 7″ (postcard)  size or  450 kb in size to get accepted to post here.  The exception is the vertical shots which...
August 29, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Thanks for the welcome to the forum. This is such an inspiring group of people. It truly made my day to have my first two contributions so warmly received. I’ve been comparing the photos I submitted to how they were presented in this forum. My...
August 24, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

~~~ Wow!! Love the recent additions to this fantastic wild ride that Michael and Hans keep rolling. Beautiful drama captured, Dave, (positively enhanced by the B&W/Sepia tones), and a mesmerizing video, Frank. As Michael notes, witnessing Asperitas events brings a special feeling (like an “E-Ticket...
August 23, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Good show Dave! yes, Asperitas does overwhelm. I can’t help feeling very special to witness a good Asperitas event. .always a smile that is impossible to remove from my face. Your use of IR is  interesting!  Canon’s 6D  Is sensitive into the IR, beyond most...
August 23, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Dave,  you have taken some exciting, not to mention moody pictures.  Keep them coming.  These forums are great fun to share pictures and support each others creations.  Asperitas are one of the most thrilling clouds to see and photography.  A rarity for me.  Looking forward...
August 22, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Wow Dave, welcome here …. and these are astonishing pictures of asperitas. The infrared reveals a really turbulent and wild cloudscape. I remember that on on the 3rd of August a picture of yours was CAD. It was cirrus and also taken in infrared accompanied...
August 22, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Hello All, I’m Dave from central Missouri, USA. This is my first post to a forum and actually I’m a little baffled on how to do this. I almost exclusively shoot clouds with an infrared converted camera. I love the way that infrared light illuminates...
August 9, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Nice asperitas time lapse In Maine USA Ciel d'#Asperitas capturé depuis le mont #Cadillac dans le #Maine aux Etats-Unis ce 5 août. Timelapse par Aidan Alwan via @severeweatherEU #usa #mewx pic.twitter.com/NKzODh1udV — Keraunos (@KeraunosObs) August 6, 2020
August 3, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

You may be right Michael about the chaotic nature of asperitas events. Your last one shows the deceiving calm wavy structure. here is another example of a small area event.
August 3, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Small area asperitas give the opportunity to see what is going on above the undulations. Chaos comes to mind. The up drafts pulling cloud segments up and  the scatter of clouds show that flying thru an Asperitas event may not be a good idea. Arizona...
July 31, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Last week I spotted some skies with a bit of the same as you both (Ruth and Michael) spotted in the last two posts. For me they all are examples of asperitas. Small areas but nevertheless the characteristic irregular undulations of asperitas are there.
July 31, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Michael, you have an exceptional collection of Asperitas cloud formations shown in this forum. I was so hoping that I had a chance to see this cloud event. Thanks for the pointers, especially looking at the picture upside down.
July 30, 2020

Reply To: ASPERITAS The CAS Cloud Vol 3

Ruth Quist.. One way to determine if what you see is Asperitas is to look at it upside down.  The up drafts and rolling clouds are a lot more apparent. The darker clouds in your photo suggest they are lower than the brite alto-cumulus  in...
July 18, 2020

Cloud ID for local newspaper article

Hi!  I live in St. Louis Missouri (United States), and have been contacted by a writer for the local paper who wants to do an article about local people in the Cloud Appreciation Society!  I submitted some of my photos to him, and he asked...