By Sachin Ravikumar LONDON (Reuters) -Britain’s weather service on Tuesday issued an amber “Extreme Heat” warning for parts of England and Wales, with no respite in sight from hot dry conditions that have sparked fires, broken temperature records and strained the nation’s infrastructure. The amber warning — the second-most severe after red — will be in place from Thursday through to the end of Sunday and means that people vulnerable to extreme heat could face adverse health effects, the UK Met Office said. Temperatures are expected to peak at 35 Celsius (95 Fahrenheit) on Friday and may hit 36…