UK Met Office claim contrail form below -57C

David Fraser

Senior Member.
Recently Look-Up.org.uk made a claim that the Met Office had informed him that the temperature for the formation of contrails must be -57C

https://www.facebook.com/permalink.php?story_fbid=1416500845255774&id=1410029482561123&stream_ref=10

I contacted the Met Office myself and I received the same response as above. I challenged the figure of -57C and after a few emails I received this response.

Simply they made a mistake and hopefully are in the process of correcting their standard email about contrails.
 

Mick West

Administrator
Staff member
Very good. Although the revised statement "contrail formation typically occurs at temperatures below about minus 45 °C", could be a little misleading, as it's just specifying a typical range, and is not setting a warmest limit, which is typically given as the nice round figure -40°C/-40°F, although exhaust contrails can also form at slightly warmer temperatures.
 

Ross Marsden

Senior Member.
It would be really useful if they could include in the explanation about the need that as the exhaust progressively mixes with the environment, water saturation must be reached for condensation to occur. That is the Appleman Criterion and is at the foundation of how we understand contrail formation. After that qualitative discussion, some numbers can be offered for typical conditions in practice.

This is The Met Office. You'd think they would have this right.
 

Jason

Senior Member
Does an error like this bode well for the "chemtrailers" or give them ammunition?
 
Last edited by a moderator:

KC-10FE

Senior Member.
I posted this on another thread, you can see Look-up uses that 57 degrees in one of their comments when trying to argue with this one lady that actually has a pretty good point. However, Look-up blatantly told her that her comments were going to be deleted anyway

Look up.png
 

cloudspotter

Senior Member.
It all gives them ammunition. They see it as proof now, but if they correct it, they will just see it as covering it up.

Despite the fact that the correction will bring them in line with all the scientific literature. Ian also quotes 37000ft as the official figure for the minimum altitude for contrail formation but I have no idea where he got that altitude from. I get the feeling he just made it up
 

WeedWhacker

Senior Member
Ian also quotes 37000ft as the official figure for the minimum altitude for contrail formation

Perhaps Ian might read this thread, in which case I personally can attest that this is incorrect. Here is someone else with actual video evidence also, showing contrails...these many flights are not "ALL" above 37,000 feet!:

This is what's known as 'proper' documentation. This bloke acquired a very, very good camera set-up, and coordinated his plane-spotting with FlightRadar24 in order to identify these flights accurately.

Here's another effort, maybe not as good (meaning, 'expensive') camera set-up, but we see the altitudes annotated:

If you don't wish to watch the video, this is the list of airliners and altitudes, taken from the video description:

1,Boeing-777 Emirates (35,000 feet)
2,Boeing-747 Korean Air (33,000 feet)
3,Airbus A380 Emirates (37,000 feet)
4,Airbus A340 Lufthansa (37,000 feet)
5,Airbus A340 Etihad Airways (39,000 feet)
6,Boeing 737 Malev (30,000 feet)
7,Airbus A330 Qatar Airways (38,000 feet)
8,Airbus A320 Wizz Air (35,000 feet)
9,Boeing 747 Korean Air (25,000 feet)
10,Boeing 747 China Air (34,000 feet)
11,Boeing 747 Lufthansa (33,000 feet)
12,Airbus A340 Lufthansa (33,000 feet)
13,Airbus A380 Emirates (35,000 feet)
14,Boeing 767 Transaero (35,000 feet)
15,Boeing 777 Qatar Airways (35,000 feet)
16,Airbus A320 Vladivostok Air (35,000 feet)
 

cloudspotter

Senior Member.
Perhaps Ian might read this thread, in which case I personally can attest that this is incorrect. Here is someone else with actual video evidence also, showing contrails...these many flights are not "ALL" above 37,000 feet!:

This is what's known as 'proper' documentation. This bloke acquired a very, very good camera set-up, and coordinated his plane-spotting with FlightRadar24 in order to identify these flights accurately.

Here's another effort, maybe not as good (meaning, 'expensive') camera set-up, but we see the altitudes annotated:

If you don't wish to watch the video, this is the list of airliners and altitudes, taken from the video description:

1,Boeing-777 Emirates (35,000 feet)
2,Boeing-747 Korean Air (33,000 feet)
3,Airbus A380 Emirates (37,000 feet)
4,Airbus A340 Lufthansa (37,000 feet)
5,Airbus A340 Etihad Airways (39,000 feet)
6,Boeing 737 Malev (30,000 feet)
7,Airbus A330 Qatar Airways (38,000 feet)
8,Airbus A320 Wizz Air (35,000 feet)
9,Boeing 747 Korean Air (25,000 feet)
10,Boeing 747 China Air (34,000 feet)
11,Boeing 747 Lufthansa (33,000 feet)
12,Airbus A340 Lufthansa (33,000 feet)
13,Airbus A380 Emirates (35,000 feet)
14,Boeing 767 Transaero (35,000 feet)
15,Boeing 777 Qatar Airways (35,000 feet)
16,Airbus A320 Vladivostok Air (35,000 feet)

Doesn't matter. Those are automatically chemtrails because they're lower than the magic altitude as far as he is concerned. I don't know if someone has told him and he's accepted it without question or he's made it up and convinced himself it's true or he's made it up and he knows full well it's incorrect, but as far as he is concerned any trail lower than that height is a chemtrail.
 

WeedWhacker

Senior Member
Doesn't matter. Those are automatically chemtrails because they're lower than the magic altitude as far as he is concerned.

Well then....Ian, if you're reading this...try to explain this video (yeah, it's been posted before, elsewhere on MB):


From the description:
Starting at 00:15, the video maker (a fellow pilot himself) describes how he videoed another jet's contrail, one that passed by him in the opposite direction (along the same route..at 27,000 feet)...and this other jet's contrail extended (and persisted) for over 400 miles.

Of particular import is beginning at 2:00, when it is imperative to explain to "chemtrail enthusiasts" just how BIG the sky is. Don't let the math daunt you...in fact, check the math as much as you wish, and pay close attention to what the narrator is describing.

(Spoiler alert: In the math he uses for this example, any "chemical" that is potentially being "sprayed" would be at a concentration so low as to be equivalent to taking 1/100th of an aspirin tablet and dissolving it in 7 1/2 gallons of water. Time reference 3:15.)
 
Thread starter Related Articles Forum Replies Date
jackfrostvc ASTRO - New proposed office to replace UAPTF UFO Videos and Reports from the US Navy 20
TEEJ Debunked: Biden's Oval Office "Coming Apart at the Seams" [It's a Door] Election 2020 19
Mick West Debunked: Biden in "Fake" Oval Office Election 2020 27
Trailblazer Chemtrail response from Swiss Federal Office of the Environment Contrails and Chemtrails 3
MikeC Buckled steel from office tower fire 9/11 30
Balance Met Office - Case Study Contrail-induced Cirrus Contrails and Chemtrails 0
Balance Met office archive Contrails and Chemtrails 7
David Fraser It is suspicious that the UK Met Office sign the Official Secrets Act (Debunked) Contrails and Chemtrails 3
Mick West James Randi Educational Foundation (JREF) Closes LA Office, President Leaves. Practical Debunking 4
sgirl Peru is Reopening Their UFO Investigating Office Science and Pseudoscience 12
Mythic Suns Claim: chinless ghost photographed at a Police incident in Irvine, Ayrshire, Scotland Ghosts, Monsters, and the Paranormal 12
S Claim: Vaccinated English adults under 60 are dying at twice the rate of unvaccinated people the same age Coronavirus COVID-19 25
Rory Claim: adverse reactions in Covid vaccine trials are not being recorded Coronavirus COVID-19 94
Rory Claim: Pfizer sponsors many mainstream TV shows (with the implication being that can lead to bad things) Coronavirus COVID-19 68
P Claim: 75 Deaths of athletes in Five Months are Because of COVID-19 vaccines Coronavirus COVID-19 11
T Claim: Roger N. Baldwin, co-founder of the ACLU, is a Communist General Discussion 0
D Help debunking local UFO claim Skydentify - What is that Thing in the Sky? 8
Rory Claim: Covid vaccines contains self-aware aluminum parasites Coronavirus COVID-19 44
T Claim: Offguardian article claiming that Covid PCR testing is flawed and not reliable Coronavirus COVID-19 8
Edward Current Does the beginning part of Gimbal debunk the claim that the object rotates? UFO Videos and Reports from the US Navy 13
SkepticSteve Claim: Existence of an Allied Forces Report about a 1963 Mass UFO Sighting in Europe UFOs and Aliens 10
Rory Claim: Harriet Hall says that acupuncture isn't "ancient" and maybe doesn't come from China Health and Quackery 0
Rory Debunked: UK undertaker's claim that Covid vaccine is responsible for spike in deaths Coronavirus COVID-19 7
Mick West Claim: Faraday Cage Experiment with radios contacts Non-Human Intelligence UFOs and Aliens 48
Oystein Debunked: Claim that Bobby McIlvaine's injuries ("lacerations") are best explained as result of glass shards and debris from bombs 9/11 22
J Claim: Genomic analysis of SARS-CoV-2 shows that it already existed in other countries such as France, India, Netherlands, England and United States Coronavirus COVID-19 1
D Claim: Videos of people exhaling vape smoke through a mask, demonstrate masks as useless against a virus.. Coronavirus COVID-19 42
Peter Robert Malone and Steve Kirsch claim spike protein is Cytotoxic Coronavirus COVID-19 19
Rory Claim: The Indian/Chinese systems of nadis/meridians have been proved by science because of hyaluronic acid and piezoelectricity Health and Quackery 113
V Needs debunking: flat earthers claim this reflection to show a harness in ISS video Flat Earth 10
T Claim: Communist Gus Hall express support for LBJ's Great Society Quotes Debunked 3
P Claim: Ghost of deceased Soldier, Freddy Jackson, captured in a photo UFOs and Aliens 18
T Claim: Heritage Foundation article asserts that Sex Ed programs encourage porn use General Discussion 6
T Claim: Willi Munzenberg said that ''We must make Western Civilisation stink'' Quotes Debunked 2
H CLAIM: USS Omaha videos were taken on the ship's "Combat Information Center" by "VIPER team" UFO Videos and Reports from the US Navy 5
gtoffo CLAIM: Sen. Martin Heinrich on UFOs (Senate Select Committee on Intelligence Member) UFO Videos and Reports from the US Navy 10
R Flat Earth Claim: "The Greatest Laser Experiment In History" - FECORE Flat Earth 11
Mick West Claim that the Nimitz FLIR1 object could not be a plane because it would have been Identified UFO Videos and Reports from the US Navy 54
T Claim: Jim Hoffman's "9/11 progressive collapse challenge" can't be met 9/11 353
BigFatAtheist Claim: MI Court: Michigan Secretary of State’s Absentee Ballot Order Broke Law, Vindicating Trump Claim Election 2020 6
TEEJ Debunked: Claim that Joe Biden's hand passes through microphone during White House press gaggle, 16th March 2021 Election 2020 9
S Claim: "Most U.S. terror deaths have come from 'extreme right wing groups' in recent years" General Discussion 14
G Claim: China refused to hand "key data" to WHO delegation during the recent investigation in Wuhan Coronavirus COVID-19 29
P Claim: NASA tried to stop Spielberg's 'Close Encounters of the Third Kind' Quotes Debunked 21
Mick West Mike Lindell's 2-Hour Election Fraud Claim Video "Absolute Proof": Hacking Claims Election 2020 7
P Claim: NASA cuts ISS livestream after "Millennium Falcon UFO" enters the frame UFOs and Aliens 16
P Claim: Admiral Byrd's "secret diary" proves hollow earth Flat Earth 9
P Claim: UFOs appeared at the Stadio Artemio Franchi in Florence UFOs and Aliens 15
P Claim: 1990 Calvine UFO UFOs and Aliens 25
P Claim: Men in black "Threatened a hotel manager" in 2009 UFOs and Aliens 14
Related Articles


















































Related Articles

Top