The phrase "and most notably when" is correct and usable in written English.
It can be used to emphasize a specific instance or example that stands out in a discussion or argument.
Example: "There have been many advancements in technology, and most notably when the internet became widely accessible in the late 1990s."
Alternatives: "especially when" or "particularly during".
Arguably just as significant has been his ability to remain calm and composed, even when dealing with breaking news and, most notably, when confronted with quarrelsome interviewees.
The projected end of the program sets the stage for a series of policy decisions expected next year on when and how to reduce the balance sheet to more usual levels, and, most notably, when to move the target interest rate above the near zero level maintained since late 2008.
But she too is softened by moments of weakness and confusion, most notably when she finds herself inexorably attracted to Tim, a man she would prefer to demonize.
Paris-Match often triggered international outrage and lawsuits, most notably when it published embarrassing snapshots of Monaco's royal family, Britain's Diana, princess of Wales, and former president François Mitterrand on his deathbed.
I also used a color scheme for past and present, most notably when he is talking to his son in 2012.
This approach created some odd and bracing passages, most notably when Ryan claimed bipartisan support for his Medicare proposals and Biden kept butting in with corrections, qualifiers and other complaints.
The YPG has been making gains in recent weeks and months - most notably when Isis was driven out of the key city of Tal Abyad earlier in June.
There had been signs that he was not entirely enamoured with the Liverpool team and their philosophy, most notably when, during a night out with Lee Sharpe, he bumped into a number of the Liverpool team.
Usada, which tests American athletes, has gone after trainers and coaches before, most notably when it gave a lifetime ban to Trevor Graham, who worked with Jones, Tim Montgomery and others involved in doping scandals.
Lack of maternal social support may also adversely impact child cognitive and behavioural development, most notably when mothers are dealing with depression or have a history of abuse [ 22, 30, 31].
Another consideration for NIV that deserves attention in the near future is the impact on swallowing, phonation, and sleep quality, most notably when NIV is used for several days.
