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Health warnings as September temperature tops 30C Health warnings as September temperature tops 30C
(35 minutes later)
Health warnings have been made for what could be the hottest September day in the UK for more than 50 years.Health warnings have been made for what could be the hottest September day in the UK for more than 50 years.
Temperatures reached more than 30C (86F) in London by lunchtime on Tuesday, with warm weather forecast for England until Friday.Temperatures reached more than 30C (86F) in London by lunchtime on Tuesday, with warm weather forecast for England until Friday.
Public Health England and NHS England have both urged caution, saying the weather can pose a risk to health.Public Health England and NHS England have both urged caution, saying the weather can pose a risk to health.
But yellow warnings for rain in northern England and south east Scotland are also in place. But yellow warnings for rain in northern England and south-east Scotland are also in place.
As much as 30mm (1 inch) of thundery, torrential rain is forecast in some places, possibly causing flash flooding and travel disruption, the Met Office said.As much as 30mm (1 inch) of thundery, torrential rain is forecast in some places, possibly causing flash flooding and travel disruption, the Met Office said.
Warnings are in place between 14:00 and 23:00 BST.Warnings are in place between 14:00 and 23:00 BST.
Night heat alertNight heat alert
NHS England has declared a level-two heat alert, which means there is a high chance that an average temperature of 30C (86F) by day and 15C (59F) overnight will occur over the next two to three days.NHS England has declared a level-two heat alert, which means there is a high chance that an average temperature of 30C (86F) by day and 15C (59F) overnight will occur over the next two to three days.
These temperatures can have a "significant effect" on a person's health if they last for at least two days and the night in between, it said.These temperatures can have a "significant effect" on a person's health if they last for at least two days and the night in between, it said.
The East of England, the South East, and the East Midlands are also expected to have some of the hottest weather.The East of England, the South East, and the East Midlands are also expected to have some of the hottest weather.
The temperature at London's Heathrow Airport had reached 30.2C (86.36F) by midday on Tuesday.The temperature at London's Heathrow Airport had reached 30.2C (86.36F) by midday on Tuesday.
The last time temperatures were above 30C (86F) in September was in 2006 in Kew Gardens, which hit 30.5C (87F) on 11 September.The last time temperatures were above 30C (86F) in September was in 2006 in Kew Gardens, which hit 30.5C (87F) on 11 September.
If temperatures rises above 31.6C (88.9F), which was reached at Gatwick on 2 September 1961, then it will be the hottest September day for 55 years.If temperatures rises above 31.6C (88.9F), which was reached at Gatwick on 2 September 1961, then it will be the hottest September day for 55 years.
How do you get to sleep in hot weather?How do you get to sleep in hot weather?
How hot is it where you are v rest of the world?How hot is it where you are v rest of the world?
Heatwave myths and how to stay coolHeatwave myths and how to stay cool
Dr Thomas Waite, from the extreme events team at PHE, said: "Think today about what you can do, and for those around you, to stay cool during the daytime and particularly at night.Dr Thomas Waite, from the extreme events team at PHE, said: "Think today about what you can do, and for those around you, to stay cool during the daytime and particularly at night.
"Much of the advice on beating the heat is common sense and for most people there's nothing to really worry about."Much of the advice on beating the heat is common sense and for most people there's nothing to really worry about.
"But for some people, such as older people, those with underlying health conditions and those with young children, summer heat can bring real health risks.""But for some people, such as older people, those with underlying health conditions and those with young children, summer heat can bring real health risks."
Why is it so hot?Why is it so hot?
Jacob Cope, BBC Weather Centre MeteorologistJacob Cope, BBC Weather Centre Meteorologist
Hurricane Hermine, which hit Florida in early September, pushed large kinks into the jet stream - large atmospheric waves which lock our weather patterns in place. For Spain and Portugal, that meant temperatures rising to 10C above average last week.Hurricane Hermine, which hit Florida in early September, pushed large kinks into the jet stream - large atmospheric waves which lock our weather patterns in place. For Spain and Portugal, that meant temperatures rising to 10C above average last week.
A large area of high pressure centred over northern Europe has brought southerly winds, which have drawn this warm air northwards, reaching our shores today. And we have mainly clear skies across much of England, so we're topping it up ourselves.A large area of high pressure centred over northern Europe has brought southerly winds, which have drawn this warm air northwards, reaching our shores today. And we have mainly clear skies across much of England, so we're topping it up ourselves.
The hottest spots on Tuesday are likely to be in a triangle between London, Cambridge and Nottingham with 31C (87.8F) likely and 32C (89.6F) very possible. The last time we saw 31C in September was in 1973. If we get to 31.6C (88.88) this would match the temperature recorded in Gatwick in September 1961.The hottest spots on Tuesday are likely to be in a triangle between London, Cambridge and Nottingham with 31C (87.8F) likely and 32C (89.6F) very possible. The last time we saw 31C in September was in 1973. If we get to 31.6C (88.88) this would match the temperature recorded in Gatwick in September 1961.
It's very doubtful that we will break the record though, as a 1906 heat wave brought September temperatures of 35.6C (96.08F).It's very doubtful that we will break the record though, as a 1906 heat wave brought September temperatures of 35.6C (96.08F).
Aberdeen and Glasgow will possibly see temperatures of 20C (68F) to 23C (73.4F), and there is a chance Aviemore could hit 24C (75.2F).Aberdeen and Glasgow will possibly see temperatures of 20C (68F) to 23C (73.4F), and there is a chance Aviemore could hit 24C (75.2F).
The high temperatures predicted means that Britain could be as warm as Bangkok in Thailand, and hotter than forecasts for Madrid and Los Angeles.The high temperatures predicted means that Britain could be as warm as Bangkok in Thailand, and hotter than forecasts for Madrid and Los Angeles.
Dr Waite added: "The hot weather won't make life difficult for all of us; indeed, many of us will make the most of it when the sun shines.Dr Waite added: "The hot weather won't make life difficult for all of us; indeed, many of us will make the most of it when the sun shines.
"But some people may not be able to adapt to the extra strain hot weather will put on their bodies and may feel the ill-effects."But some people may not be able to adapt to the extra strain hot weather will put on their bodies and may feel the ill-effects.
"Each year we hear stories of people who have fallen seriously ill because, even though it's hotter, they may wear clothes which are too warm for hot weather, they may not drink enough or just try to do too much.""Each year we hear stories of people who have fallen seriously ill because, even though it's hotter, they may wear clothes which are too warm for hot weather, they may not drink enough or just try to do too much."
Dr Waite advised people to close curtains on windows that face the sun during the day, and to open windows once the sun is no longer on them to get a breeze.Dr Waite advised people to close curtains on windows that face the sun during the day, and to open windows once the sun is no longer on them to get a breeze.
He added that people should think about turning off electrical devices, as they can generate unwanted heat.He added that people should think about turning off electrical devices, as they can generate unwanted heat.