2020 NEGATIVE
Observer | Location | Country | yy | mm | dd | UT-Start | UT-End | notes |
|---|---|---|---|---|---|---|---|---|
Heiko Ulbricht | Herzogswalde, Saxony | Germany | 2020 | 05 | 01-02 | 20:00 | 21:00 | Clear, no NLCs. Date 31-01 |
Ken Kennedy | Broughty Ferry, Dundee | Scotland | 2020 | 05 | 20-21 | 22:30 | 03:15 | Clear sky but no sign of NLC |
Tomasz Adam | Kraków | Poland | 2020 | 05 | 21-22 | 19:45 | 20:30 | Clear |
Ken Kennedy | Broughty Ferry, Dundee | Scotland UK | 2020 | 05 | 22-23 | 22:00 | 02:30 | 4/8 cloud but no NLC recorded |
Ken Kennedy | Broughty Ferry, Dundee | Scotland UK | 2020 | 05 | 23-24 | 21:45 | 02:15 | 3/8 cloud but no NLC on any image between stated times. |
Tomasz Adam | Kraków | Poland | 2020 | 05 | 27-28 | 19:45 | 20:30 | NW-N horizon clear to about 10°. No NLCs. |
L. Kranich | Kiel | Germany | 2020 | 05 | 27-28 | 20:30 | 00:10 | Very dry and clear skies with fantastic visibility after cold front passage |
Leonard Entwisle | Elland,West Yorkshire | UK (England) | 2020 | 05 | 27-28 | 22:05 | 23:05 | Cloud sub 1 okta |
Heiko Ulbricht | Herzogswalde, Saxony | Germany | 2020 | 05 | 28-29 | 19:30 | 21:00 | Clear, no NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 05 | 28-29 | 19:50 | 20:10 | Broken clouds. No NLCs. |
Leonard Entwisle | Elland,West Yorkshire | UK (England) | 2020 | 05 | 28-29 | 22:05 | 23:05 | Cloud sub 1 okta |
George Anderson | Wokingham | England, UK | 2020 | 05 | 28-29 | 01:40 | 02:00 | Sky clear except for a contrail. No NLC. |
Tomasz Adam | Kraków | Poland | 2020 | 05 | 29-30 | 19:40 | 20:30 | Clear. |
John Rowlands | Anglesey | Wales | 2020 | 05 | 29-30 | 01:50 | 02:20 | Haze to 0.5 degree above sea horizon. |
S. MacIver | Edinburgh | Scotland | 2020 | 05 | 29-30 | 22.00 | 1.30 | very light hazy cloud, especially low N.N.E. |
Len Entwisle | Elland,West Yorkshire | UK (England) | 2020 | 05 | 29-30 | 22:05 | 23:30 | Patches of tropo discrete cloud to 2 okta.No NLC |
George Anderson | Wokingham | England, UK | 2020 | 05 | 29-30 | 21:35 | 22:00 | Sky clear. |
George Anderson | Wokingham | England, UK | 2020 | 05 | 30-31 | 21:00 | 22:00 | Sky clear. No NLC. |
Lrn Entwisle | Elland,West Yorkshire | England (UK) | 2020 | 05 | 30-31 | 22:05 | 23:10 | Low haze ended watch.No NLC |
George Anderson | Wokingham | England, UK | 2020 | 05 | 31-32 | 21:15 | 22:00 | Sky clear. No NLC. |
George Anderson | Wokingham | England, UK | 2020 | 05 | 31-32 | 01:00 | 02:10 | Sky clear through W to NE, though some patchy cloud later on ENE horizon. |
Len Entwisle | Elland,West Yorkshire | England (UK) | 2020 | 05 | 31-32 | 22:05 | 00:05 | No NLC down to 3 degrees altitude here in watch period |
Heiko Ulbricht | Herzogswalde, Saxony, Germany | Germany | 2020 | 06 | 01-02 | 20:00 | 20:50 | Very clear to horizon, no NLCs. |
George Anderson | Wokingham | England, UK | 2020 | 06 | 01-02 | 21:00 | 22:05 | Sky clear, except for trace ofcontrail Cirrus at first in the north. No NLC |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 01-02 | 19:50 | 20:20 | W and NW obscured to 10°, otherwise clear, no NLCs. |
George Anderson | Wokingham | England, UK | 2020 | 06 | 01-02 | 02:20 | 02:35 | A few patches of Cirrus. No NLC. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 02-03 | 19:50 | 01:15 | Mostly clear. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 03-04 | 00:40 | 01:15 | Patches of high clouds. No NLCs. |
Len Entwisle | Elland,West Yorkshire | England (UK) | 2020 | 06 | 06-07 | 22:05 | 23:05 | Initially clear to 22:35 & 23:05 just a 10deg slot in N sky. |
John Rowlands | Anglesey | Wales | 2020 | 06 | 08-09 | 00:25 | 01:45 | Excellent transparency |
L. Kranich | Schleswig | Germany | 2020 | 06 | 08-09 | 20:30 | 03:00 | Very clear night sky, few small, distant ac/as but very good visibility |
Heiko Ulbricht | Herzogswalde, Saxony | Germany | 2020 | 06 | 11-12 | 20:10 | 21:00 | A larger cloud gap, but no NLCs… |
Heiko Ulbricht | Jupiterlinde (near Berthelsdorf), Saxony, Ore Mountains | Germany | 2020 | 06 | 12-13 | 20:00 | 21:15 | Very hazy, but clear, no NLCs. Bad season… |
George Anderson | Wokingham | England, UK | 2020 | 06 | 12-13 | 21:40 | 22:15 | Stratocumulus receding northwards on the northern horizon. Clear sky above. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 12-13 | 19:50 | 01:15 | No NLCs. |
George Anderson | Wokingham | England, UK | 2020 | 06 | 13-14 | 01:30 | 02:10 | Initially a SC band to N -NE. Clear above. Breaking up through period. |
George Anderson | Wokingham | England, UK | 2020 | 06 | 14-15 | 21:25 | 22:20 | Cirrus near/on horizon N - NE; clear sky above. Clear sky NNW - N. |
Heiko Ulbricht | Herzogswalde, Saxony | Germany | 2020 | 06 | 14-15 | 20:15 | 21:00 | Only cloud gaps, no NLCs… |
Henning Untiedt | Tröndel; 54.333N, 10.517E | Germany | 2020 | 06 | 15-16 | 21:15 | 22:45 | Clear sky, excellent conditions. No NLC over the during observation time. |
Heiko Ulbricht | Herzogswalde, Saxony | Germany | 2020 | 06 | 15-16 | 20:15 | 21:15 | No NLCs… Where are the NLCs this year? |
George Anderson | Wokingham | England, UK | 2020 | 06 | 16-17 | 21:45 | 22:30 | Clear NNW - W. Some Sc to Elev. 12deg, N - NE & a little Ci above. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 06 | 16-17 | 21:00 | 01:30 | Sky overcast with 7 to 8 octas Altostratus |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 06 | 18-19 | 00:45 | 01:45 | Overcast sky with 8 octas Cm=7 |
John Owen | Aberdeen | Scotland | 2020 | 06 | 20-21 | 23:20 | 23:50 | Clear midsummer night, but no NLC |
George Anderson | Wokingham | England | 2020 | 06 | 22-23 | 21:30 | 22:15 | Sky clear. No NLC. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 22-23 | 00:50 | 01:10 | Clear N-NW horizon, no NLCs. |
Len Entwisle | Elland,West Yorkshire | England (UK) | 2020 | 06 | 23-24 | 22:05 | 23:45 | Clear sky.No NLC |
George Anderson | Wokingham | England | 2020 | 06 | 23-24 | 21:45 | 22:15 | Some patches of thin Cirrus, but not significantly impacting on visibility. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 23-24 | 20:00 | 01:15 | Mostly clear NW-NE horizon. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 24-25 | 20:00 | 20:30 | Some cirrus clouds and contrails. No NLCs. |
George Anderson | Wokingham | England | 2020 | 06 | 24-25 | 21:40 | 22:15 | Slight haze and maybe a little Cirrus on/near N horizon, otherwise clear. |
George Anderson | Wokingham | England | 2020 | 06 | 24-25 | 01:15 | 02:15 | Slight haze on N - NNE horizon, otherwise clear sky. |
George Anderson | Wokingham | England | 2020 | 06 | 25-26 | 21:30 | 21:55 | N - NNW horizon mostly clear at first, but Cirrus elsewhere invading. |
George Anderson | Wokingham | England | 2020 | 06 | 25-26 | 02:00 | 02:20 | Mostly cloudy, but a relatively clear gap on NNE horizon. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 25-26 | 20:00 | 01:30 | Mostly cloudy. No NLCs in the gaps. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 06 | 26-27 | 21:00 | 23:30 | Overcast sky Cm=7 and intermittent slight rain |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 27-28 | 20:00 | 21:00 | Clear. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 28-29 | 19:55 | 01:30 | Clear. No NLCs. |
George Anderson | Wokingham | England | 2020 | 06 | 28-29 | 22:15 | 22:40 | Clear to NW - W. Some Stratocumulus on the N horizon. No NLC seen. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 06 | 29-30 | 21:30 | 02:00 | sky overcast 8octas sc Cl=5 |
Tomasz Adam | Kraków | Poland | 2020 | 06 | 30-31 | 00:50 | 01:15 | Patches of clouds. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 02-03 | 00:45 | 01:20 | No NLCs. |
George Anderson | Wokingham | England | 2020 | 07 | 02-03 | 21:45 | 22:00 | Large areas of Sc, but some clear gaps N - NW. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 07 | 03-04 | 21:00 | 02:30 | 7 to 8 octas Cl=5 Cm=7 upper sky invisible |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 03-04 | 00:50 | 01:15 | Clear. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 04-05 | 00:45 | 01:15 | Clear. No NLCs. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 07 | 05-06 | 21:00 | 22:00 | 6 to 8 octas stratocumulus; no NLC seen |
George Anderson | Wokingham | England | 2020 | 07 | 05-06 | 01:25 | 02:20 | Some patches of thin Sc, mainly early on, but N - NE horizon largely clear. |
George Anderson | Wokingham | England | 2020 | 07 | 06-07 | 21:35 | 21:55 | A large amount of Sc, but largely clear on the horizon NW - NNE. |
George Anderson | Wokingham | England | 2020 | 07 | 06-07 | 01:25 | 01:50 | Sc N-NE horizon to ~ EL 10 deg, clear slot above, then Ac above that. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 07 | 07-08 | 21:00 | 02:00 | Overcast 8 octas Cm=2 |
George Anderson | Wokingham | England | 2020 | 07 | 10-11 | 21:30 | 22:30 | Sky clear. Good transparency. No NLC seen. |
Tomasz Adam | Chańcza | Poland | 2020 | 07 | 10-11 | 19:45 | 20:30 | Distant thunderclouds obscuring the sky up to 5°. No NLCs above them. |
Tomasz Adam | Staszów | Poland | 2020 | 07 | 10-11 | 00:45 | 01:00 | Patches of middle clouds. No NLCs between them. |
George Anderson | Wokingham | England | 2020 | 07 | 11-12 | 21:30 | 22:10 | Sky clear. No NLC. |
George Anderson | Wokingham | England | 2020 | 07 | 11-12 | 01:00 | 02:05 | Mostly clear sky. No NLC. |
Len Entwisle | Elland,West Yorkshire | England (UK) | 2020 | 07 | 11-12 | 22:15 | 23:30 | Mainly clear sky.No NLC |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 12-13 | 20:00 | 21:20 | Clouds up to 3°. No NLCs above. |
P.P. Hattinga Verschure | Deventer | Netherlands | 2020 | 07 | 13-14 | 21:00 | 01:30 | 7 octas Cm=7 upper sky invisible |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 14-15 | 20:00 | 01:20 | Clear. No NLCs. |
George Anderson | Wokingham | England | 2020 | 07 | 19-20 | 21:30 | 22:15 | Sky largely clear, just small traces of Stratocumulus. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 20-21 | 01:00 | 01:30 | N horizon partially obscured by dissipating thunderstorm. No NLCs in gaps. |
George Anderson | Wokingham | England | 2020 | 07 | 20-21 | 01:40 | 02:40 | Largely clear sky, just a trace of cloud. |
George Anderson | Wokingham | England | 2020 | 07 | 20-21 | 21:20 | 22:20 | Sky clear. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 21-22 | 20:00 | 01:30 | Partially cloudy. No NLCs. |
Alan C Tough | Elgin | Scotland | 2020 | 07 | 21-22 | 00:00 | 01:30 | No evidence of NLC between bands of trop to the north. Sky clear elsewhere. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 23-24 | 01:00 | 01:30 | Some semi-transparent clouds. No NLCs. |
George Anderson | Wokingham | England | 2020 | 07 | 23-24 | 21:30 | 22:15 | Largely clear in the sector NW - NE but a few small patches of SC. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 24-25 | 00:50 | 01:35 | Haze and some translucent clouds. No NLCs. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 25-26 | 20:10 | 01:30 | Clear. No NLCs. |
John Rowlands | Anglesey | Wales | 2020 | 07 | 25-26 | 01:00 | 02:30 | excellent transparency, clear to ~0.5 degrees of N horizon |
George Anderson | Wokingham | England | 2020 | 07 | 25-26 | 02:00 | 02:40 | Largely clear sky but trace of Stratocumulus. |
George Anderson | Wokingham | England | 2020 | 07 | 25-26 | 21:35 | 22:05 | Largely clear. Small patch of Stratocumulus near horizon to the NNE. |
George Anderson | Wokingham | England | 2020 | 07 | 28-29 | 21:00 | 21:35 | Clear sky except for a trace of Stratocumulus to the SE. |
George Anderson | Wokingham | England | 2020 | 07 | 28-29 | 02:15 | 02:35 | Largely clear except for a trace of Stratocumulus. |
Tomasz Adam | Kraków | Poland | 2020 | 07 | 29-30 | 19:30 | 02:00 | Some cirrus clouds. No NLCs. |
John Rowlands | Anglesey | WALES | 2020 | 07 | 30-31 | 21:30 | 03:00 | |
George Anderson | Wokingham | England | 2020 | 07 | 30-31 | 21:00 | 21:35 | Mainly clear but some patches of thin CI, & a trace of Sc on NNE horizon. |
George Anderson | Wokingham | England | 2020 | 07 | 30-31 | 03:00 | 04:05 | Clear sky. Slight hozizon haze. |
George Anderson | Wokingham | England | 2020 | 07 | 31-32 | 02:30 | 02:50 | Mostly clear. A few patches of Stratocumulus NNE - SE. |
George Anderson | Wokingham | England | 2020 | 08 | 03-04 | 03:05 | 03:15 | Trace of Sc, Ci & contrail, otherwise clear. |
John Rowlands | Anglesey | Wales | 2020 | 08 | 05-06 | 02:50 | 03:10 | 0/8 excellent trnasparency |
George Anderson | Wokingham | England | 2020 | 08 | 06-07 | 21:05 | 21:20 | Clear W - NE. Trace of cloud to E. |
George Anderson | Wokingham | England | 2020 | 08 | 06-07 | 02:45 | 03:00 | Sky clear. |
