Home |
Search |
Today's Posts |
![]() |
|
uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
![]() |
|||
|
|||
![]()
Now visible at 1955Z between WSW and NW, these are
considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. These fine wavy clouds look to be at least 40000ft and taking on noctilucent characteristics, except it is far too early and too low an altitude (and in the wrong direction) for such clouds. There is still over an hour left before sunset. Elevation of there strands are well above 45 degrees. Anyone care to look outside right now and comment? Nigel (Romsey, Hampshire) |
#2
![]() |
|||
|
|||
![]()
On 4 July, 20:59, "Nigel Paice" wrote:
Now visible at 1955Z between WSW and NW, these are considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. *These fine wavy clouds look to be at least 40000ft and taking on noctilucent characteristics, except it is far too early and too low an altitude (and in the wrong direction) for such clouds. There is still over an hour left before sunset. Elevation of there strands are well above 45 degrees. Anyone care to look outside right now and comment? Nigel *(Romsey, Hampshire) Yes, I noticed from here (cent S Berkshire) this evening and also yesterday evening - and I see from Bernard Burton's obs in Wokingham (and others in S England) there was NLC observed later yesterday evening. I'll be checking the northern sky carefully over the next 30 minutes. I did wonder if the 'cirrus shield' effect - which from here lasted only a few minutes in twilight sky - might be a precursor to NLC, although I've not heard that reported previously, and the mechanism/height differences would make this difficult to reconcile. It certainly looked nothing like the 'ordinary' Ci spi thet was around all evening, and was lit up well after those had darkened. -- Stephen Burt Stratfield Mortimer, Berkshire |
#3
![]() |
|||
|
|||
![]()
Now visible at 1955Z between WSW and NW, these are
considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. Volcanic, apparently: http://www.spaceweather.com/ |
#4
![]() |
|||
|
|||
![]()
"Darren Prescott" wrote in message
o.uk... Now visible at 1955Z between WSW and NW, these are considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. Volcanic, apparently: http://www.spaceweather.com/ .... seen from here last night about time of original posting (4th/sorry, couldn't post details then): have been looking out for same since seeing the warning on the site that Darren noted, but this is the first time that conditions have been right for us. The rising (near) full moon tended to swamp the sky and confuse things after that time. Martin. -- Martin Rowley West Moors, East Dorset (UK): 17m (56ft) amsl Lat: 50.82N Long: 01.88W NGR: SU 082 023 |
#5
![]() |
|||
|
|||
![]()
"Nigel Paice" wrote :
Now visible at 1955Z between WSW and NW, these are considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. These fine wavy clouds look to be at least 40000ft and taking on noctilucent characteristics, except it is far too early and too low an altitude (and in the wrong direction) for such clouds. There is still over an hour left before sunset. Elevation of there strands are well above 45 degrees. Anyone care to look outside right now and comment? Yes, seen from south Beds too ... and I agree with the way you described "...taking on noctilucent characteristics" though those characteristics disappeared within 20 mins of the sun setting. Noted my first ever paraselene last night too (though may be an indication of my not looking out for such things than their actual rarity). Philip |
#6
![]() |
|||
|
|||
![]()
On 5 July, 10:47, "Philip Eden" philipATweatherHYPHENukDOTcom wrote:
"Nigel Paice" wrote : Now visible at 1955Z between WSW and NW, these are considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. *These fine wavy clouds look to be at least 40000ft and taking on noctilucent characteristics, except it is far too early and too low an altitude (and in the wrong direction) for such clouds. There is still over an hour left before sunset. Elevation of there strands are well above 45 degrees. Anyone care to look outside right now and comment? Yes, seen from south Beds too ... and I agree with the way you described "...taking on noctilucent characteristics" though those characteristics disappeared within 20 mins of the sun setting. Noted my first ever paraselene last night too (though may be an indication of my not looking out for such things than their actual rarity). Philip Seen them for several nights now, was coming home about midnight Friday night and could see them, shame I didn't stop and photograph them I could have added them to my new gallery http://picasaweb.google.co.uk/nickw7...ogsPillarsRays which I'll try to update when I get more... Nick |
#7
![]() |
|||
|
|||
![]() "Darren Prescott" wrote in message o.uk... Now visible at 1955Z between WSW and NW, these are considerably higher than the other 'normal' Ci fibratus clouds I can see nearby at about 30000ft. Volcanic, apparently: http://www.spaceweather.com/ Thanks, Darren for bringing this website to my attention, now added to my favourites. Clouds of volcanic origin... something that should have dawned on me as a possible explanation because I do recall observing skies of this ilk on the odd occasion in the past. The streamers and waves I saw yesterday, closely match those shown in the last photograph (taken by Rob Bullen in the Forest of Dean) of the 2009 Sarychev Sunset Gallery on the 'spaceweather' site. Thank you also, Stephen, Martin, Philip and 'BatMan' Nick, for your observations. Took a squint outside just now (2000Z) and they've reappeared. Although less distinct than at this time yesterday evening, ripples are now visible within the striations. Nigel |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
By the Light of the Silvery Mooon... | alt.binaries.pictures.weather (Weather Photos) | |||
Thin High Cirrus 2 of 3 | alt.binaries.pictures.weather (Weather Photos) | |||
Thin High Cirrus 1 of 3 | alt.binaries.pictures.weather (Weather Photos) | |||
High Cirrus | alt.binaries.pictures.weather (Weather Photos) | |||
Severe Weather Threat Extremely High..... | alt.talk.weather (General Weather Talk) |