How long do they last in the sky?
Thermodynamics is the controlling factor for contrail formation, described by an equation that is a function of atmospheric temperature and pressure, and among other parameters, water content in the exhaust and the atmosphere. If the relative humidity is over 100%, they can persist for long periods of time, typically a few minutes to hours, thus covering much of the sky in a narrow path. Frequently, because of mixing due to turbulence in the upper atmosphere, the jets broaden vertically and horizontally. The horizontal broadening can at times cover a large portion of the sky depending on the amount of water vapor available in the atmosphere at cruise altitudes, resulting in contrail-induced cirrus clouds. These can persist for much longer times — typically several hours, similar to ordinary cirrus clouds that are also composed of ice particles.
If the vapor trail was produced by the shadow of a contrail it would have been present in more than one image. These were photographed seconds apart. The contrail appears in only one frame.
The sky was cloud free other than the cloud, the notion that a second cloud blocked the sun immediately after the image with the shadow is also not a viable hypothesis. Thank you I agree that alternative explanations must be ruled out. However, the object I saw on the lcd screen had a movement that was coincident with the time and the same path on the screen. I pointed earlier that the lenticular cloud is formed immediately above the mountain and does not bread out for many miles. The vapor trail was immediately above the mountain. Barring a deliberate alteration of the image, the most plausible explanation appears to be my account. In statistics we call these rival hypotheses. Once the rival hypotheses can be reasonably excluded, the argument for a causal relation becomes very strong. We might conjecture that there was a volcanic emission from the ridge below, Mt Shasta is an active volcano, however no gaseous emissions have been reported in that area. We might speculate that the hikers shot off a rocket from below, 4th of July was only a few days away, but hikers typically don’t shoot off rockets. One matters more the most is the eye witness account and none of the speculations square with that account. Therefore, we are left questioning the honesty of the observer since drawing a shadow over the cloud in photoshop is childś play. There are no other witnesses to corroborate the object and no airport radar accounts of an object movements.
Therefore, the most likely explanation, since it seems that no one can accept the idea that an object produced the so called vapor trail, is fraud. So we must now come up with rival hypotheses to exclude fraud. Polygraph, previous incidences of deception, mental health, hallucinatory drug use, professional back ground, interview acquaintances, criminal records
You don´t know me, so there should be no assumption that I am telling the truth. Thus we are at an impasse and no serious debunking can take
In the meantime tahe claim has been made that we have see these cloud patterns all before. Well, look at the images below and show the equivalents. I have searched but do not have experience of. many here. Thank you.