Occasionally, a fast growing Cumulus Congestus will disrupt an overhead horizintal airflow by deviating it upwards. If conditions are right, this motion leads to condensation and a lenticular-like cloud will form in the same way it does in orographic mountain waves. This type of cloud is called Pileus; this one was shot in the cruise from Budapest to Lisbon in A319 CS-TTR.
Its summer in Europe and CB season is back; massive thunderstorms are fuelled by heat and moisture. In this shot, western parts of a spanish Cumulonimbus appear to glow as the evening sunlight is cast upon them. A319 CS-TTD from Rome to Lisbon
The Kelvin-Helmholtz instability or wave can occur when there is a velocity shear between adjacent layers of the atmosphere. When a cloud finds itself interacting with both layers as is the case with this stratocumulus off the coast of Nice, the wave is revealed. I've been after a shot of one of these for a long time and eventhough much better examples can be found on the internet, this one is mine and I like it.
Another day ends in a glorious fashion in which tranquility takes over while leaving the windy and rainy weather below. Here we are in the climb out of Lisbon towards Brussels in A319 CS-TTO. On board, 106 passengers among which is our respected CEO Fernando Pinto. Despite a slight delay on departure, arrival was on schedule...as usual.
One of the major advantages of air travel is the possibility to go from one place to another using the most direct route which on a sphere is known as an orthodromic or great-circle. This of course applies when French ATC is not on strike which is not the case today.. Flying from Porto to Zurich while avoiding French airspace is not easily accomplished without using the T9 airway which takes us into Shanwick's oceanic airspace up to the UK. Despite a tremendous increase in fuel burn and flight time, T9 has got to be one of the coolest airways in the european network. A319 CS-TTF from Porto to Zurich the long way around. 
Cumulus clouds beaming anti-crepuscular rays while in the descent towards Porto out of Zurich in A319 CS-TTF.
Close up view of Zurich's control tower as it mirror's our tail in one of it's windows. A319 CS-TTF bound to Porto waiting for our CTOT (Calculated Take Off Time) as the passengers are informed that french ATC is on strike...
Venus, the Moon and the (already set) Sun are aligned as we progress to Hamburg in A319 CS-TTF. Appearance can be deceiving since our day is not yet over; a hydraulic fluid leak has been detected and we are focused on managing the possible loss of one of our three hydraulic systems. Despite not being a common failure, it is far from being a major concern.
A night glimpse through the open doors of hangar 6 at Lisbon airport. Complex machines as they are, airplanes require constant high quality maintenance. TAP Maintenance & Engineering is known to be among the very best in the business and this is one of its main facilities. We had just arrived from Nice in A319 CS-TTQ. 
Flying West towards the escaping Sun, Venus and Jupiter are gradually revealed as the night takes over. A319 CS-TTQ at FL390 from Nice to Lisbon.
Airbus A340 crossing overhead in Swiss airspace as the sun rises. We were in A319 CS-TTR flying from Moscow to Lisbon. Airbus has recently announced the end of production of the four engined A340. 
Clear night skies allowed this great view of Minsk, the capital of Belarus on the way from Lisbon to Moscow in A320 CS-TNS. 
Rosenbauer Panther fire fighting vehicle standing by while we fuel A320 CS-TNP at Budapest airport shortly after arriving from Lisbon. This is standard procedure when fuelling is carried out with (transit) passengers on board as is the case today before our next sector to Prague. The pre-flight inspection was an interesting and slippery event in temperatures of -11ºC.
Alpine Altocumulus Lenticularis formation spotted while climbing out of Bologna in A320 CS-TNT. Strong winds interact with the mountains below causing massive uplifting of the surrounding air which cools as it rises. Sufficient cooling leads to saturation and condensation into these beautiful clouds.
Lenticular Altocumulus cloud formation over the Madrid area. A319 CS-TTC from Lisbon to Madrid then back to Lisbon and to Madrid again. 
Interesting sight near Nantes in the cruise from Lisbon to Copenhagen in A319 CS-TTS. Air is being forced upwards, perhaps by a ridge, triggering condensation and resulting in this sea gull wing shaped cloud formation.
A320 CS-TNU's beautiful CFM56 engine illuminated by the left wing scan light on the ground in Sal (Cape Verde) before the 4 hour flight back to Lisbon. The purpose of the wing light is to help visual detection of ice on the leading edges of the wing and engine intake. 
The stars Dubhe, Merak, Phecda, Megrez, Alioth, Mizar and Alkaid together make up the constellation of Ursa Major (also called Big Dipper). This constellation is special because the line that extends five times the distance from Merak to Dubhe allows easy identification of Polaris, the North Star (in this pic, the one close to the left edge near the bottom). A320 CS-TNU from Sal to Lisbon with 155 passengers on board and strong navigation backup.
So it seems my small digital camera takes pictures at night as well.. A320 CS-TNU through the moon lit overcast flying from Sal to Lisbon on yet another whole night flight.
Beautifully lit A320 CS-TNU on the ground in Sal (Cape Verde) during the external inspection. The title "Electric Jet" was taken from Capt. Dave's great blog: http://flightlevel390.blogspot.com/ 
Flying back from Christmas in Moscow, here is A319 CS-TTQ's Fuel page on the System Display about 4 hours into the flight. We've been exposed to very low SAT's (static air temperatures) for most of the flight (-67ºC in this pic) which have been slowly removing heat from the fuel in the wings. Due to the relatively small amount held in each outer tank (slightly over 700 kg), this fuel cools at a greater rate and requires monitoring. Engines, in general, don't like frozen fuel. Jet A-1 fuel freezes below -47ºC but since we fuelled in Russia, our fuel is TS-1 which freezes below -50ºC.
Early morning arrival at Lisbon in A320 CS-TNN from Brussels, a veil of cirrostratus filtering the rising sun producing yet another "pic from the office".
A layer of clouds once again revealing a wave probably resulting from the interaction of strong winds across a distant mountain range. Most people believe that waves are a thing of the ocean used for surfing but glider pilots such as my friend Pedro Mesquita might tell you otherwise... A320 CS-TNR cruising at FL380 to Luxembourg (anticipating turbulence).
On the ground in Oslo in A319 CS-TTP. Everything normal except maybe the exceptionally low QNH of 986 hPa. We were in fact very close to the center of a low pressure system also called depression or cyclone. Bad weather is associated to these systems and today was no exception with strong winds and heavy rain present throughout the approach to runway 19R. (Three days later in Stockholm the QNH fell further to 975 hPa which is, I believe an all time low for me).
Standing by for the takeoff clearance on Lisbon's runway 21. Unusually dense fog for Lisbon is present making this an LVTO (Low Visibility Take Off) since the reported touchdown zone RVR (runway visual range) is 200m. A319 CS-TTP bound to Oslo.