Highest temperatures and rainfall over the weekend

23 08 2015

Over the past 24 hours the weather has delivered a mixture of hot sunshine, thunderstorms, hail and heavy rain as we highlighted earlier in the week.

As expected, sunny skies and warm air being pushed northwards from the continent allowed temperatures to climb across central and eastern parts of the UK, reaching maximums in the high 20s and low 30s on Saturday with a humid feel:

Table showing Maximum temperatures for Saturday 22 August 2015

Location Maximum Temperature in C
Gravesend 30.9
Kew Gardens 30.9
Heathrow 30.7
St James’s Park 30.7
Northolt 30.6

These high temperatures set off two areas of thunderstorms, one over central southern England and another over the Midlands, moving into northern England. These storms caused localised surface water flooding and flooding of some properties in North Yorkshire as up to 30mm of rain fell in an hour. There were also impacts to the York-Leeds rail line.

Across the northwest of the UK it was fresher and mainly dry with some sunshine, while the areas in between were rather cloudy with some rain.

Overnight, the heavy, thundery downpours continued to move northwards, while heavy rain also spread into western parts of the UK. By this morning at 10am the rainfall totals for the 24 hours were as follows:

Table showing rainfall totals for the 24 hours up until 10am on Sunday 23 August 2015

Location Rainfall in mm
Bramham 62.6
Ryhill 54.6
Tredegar 40.6
Linton-on-Ouse 39.8
Scolton Country Park 36.8

During today, the heavy rain has continued to spread north and eastwards with a mixture of sunny spells and heavy showers following across the south. Ahead of this, temperatures across eastern England have again peaked in the mid to high 20s.

Table showing rainfall totals bwtween 10am and 4pm on Sunday 23 August 2015

Location Rainfall in mm
Hereford 20.8
Llanbrynmair 20.4
Sarn 17.8
Lake Vyrnwy 17.2
Porthmadog 17.2

The changeable weather will continue as we head into next week. Met Office National Severe Weather Warnings have been issued and everyone is encouraged to keep up to date with forecasts and warnings over the next few days and to make plans accordingly.





Met Office in the news – BBC weather contract

23 08 2015

You may have seen reports in the media today that the Met Office won’t be the BBCs main weather provider when the current contract ends.

Obviously everyone at the Met Office is disappointed that we won’t be supplying weather presenters and graphics to the BBC in the future.

MetOffice

As a trusted British institution we work at the heart of Government, with a wide range of customers, and with emergency responders to maintain resilience and public safety. We will be working with the BBC and others to ensure the nations official weather warnings are broadcast in a consistent way; and that our advice underpins forecasts when it matters most. We are also supporting our popular team of presenters to ensure clarity on their future.

Steve Noyes, our Operations and Customer Services Director, said: “Nobody knows Britain’s weather better and, during our long relationship with the BBC, we’ve revolutionised weather communication to make it an integral part of British daily life.

“This is disappointing news, but we will be working to make sure that vital Met Office advice continues to be a part of BBC output.

“Ranked No 1 in the world for forecast accuracy, people trust our forecasts and warnings. There are lots of ways to access these both now and in the future – via the Met Office app, website, and video forecasts, as well as through television and other digital news providers.”

Much of our 93 years of working with the BBC has been based solely on radio and television forecasts. The world is changing though, and nowadays people access weather information in many ways.

As ever, everyone will be able to access trusted Met Office forecasts and warnings on our own digital channels like our app and mobile website, delivered as text, symbols and videos. You can embed that information easily in your own website too. We continue to provide our expert forecasts on independent television networks and there are also now many other news organisations increasingly sharing Met Office content online.





Rain or shine this weekend?

20 08 2015

You may have heard that this weekend could be cloudy and wet…or sunny and dry, that’s because as with other weekends this summer there has been some uncertainty in the forecast.

After a mixed week of some sunshine, rain and showers it looks like we’ll see more of the same over the weekend as a frontal system interacts with warm, humid air spreading northwards from the continent.

We are now fairly confident that on Saturday the UK will be split weather wise. There’ll be bright and breezy weather in the north west with a few showers. Meanwhile the south east will be warm and humid, perhaps hot with temperatures in the high 20s which could set off a few isolated thunderstorms. In between we expect to see a band of cloud and rain which could be heavy and persistent at times.

Overnight and into Sunday the wet weather is expected to become more widespread across England and Wales and move into Scotland with some heavy rain at times.

Sun23Aug12z

At the moment, central and western parts of the UK seem most likely to see the heaviest, most persistent rainfall as the frontal system pivots. However, this pivot position could change over the coming days, and this is critical because it will determine whether we need to issue weather warnings.

Once we have more certainty where the most persistent, heavy rain will be we will review whether a Met Office National Severe Weather Warning is required. Therefore, as ever, it is best to check the latest forecast if you have plans for the weekend.

Tony Berry, Visitor Experience Director at the National Trust said: “Despite the unsettled weather this weekend, there’s still loads to do at National Trust places across the country. From windswept coastal paths and woodlands to hundreds of historic houses and gardens, there’s always something to explore come rain or shine. We’ve got a whole host of activities to wear the kids out too, with everything from pirate adventures and fossil hunts (just remember to pack the waterproofs and wellies) to storytelling and wild art. And throughout August we’ll be bringing the coast to a whole host of cities across the UK in the form of a giant shell – Shellsphere – where passers-by will have the opportunity to see, smell, hear and taste the sea.”

Next week, we’ll continue to see a combination of drier, sunny days with cloudier spells and some rain or showers at times but it will be warmer than recently.





Summer downpours on the way

11 08 2015

The weather forecast for later this week is presenting a challenge for our meteorologists.

All the ingredients are present to produce significant rainfall on Thursday and Friday, but complex interactions in the atmosphere make it difficult to say with certainty where the rain will be most intense.

An area of low pressure is expected to develop and push north across the Bay of Biscay and western France on Wednesday night and into Thursday, arriving across southern England on Thursday morning. As it comes north, very warm air over the continent is expected to be drawn into the low pressure’s circulation, making it feel very humid across central and southern areas of the UK

Fri1400z

Forecast pressure chart valid for 1am on Friday showing the location of the low pressure system over the southeast of the UK.

Warmer air can carry more moisture, and as such some very heavy rain is possible. However, this type of situation is difficult to forecast accurately a few days ahead and there is some uncertainty about which areas will see the heaviest rainfall. Current indications are that central and southern England and Wales are most likely to be affected. We may also have hail and thunder, this is most likely early on Thursday and then again Friday afternoon.

As we have already seen this summer, this type of weather situation has the potential to cause sudden, localised surface water flooding and hazardous travelling conditions.

Met Office National Severe Weather Warnings have been issued and these will be updated over the next few days as confidence in where and when we will see the heaviest rainfall increases.

Looking further ahead, the whole system is expected to clear away to the east during Saturday, with drier, fresher weather following to all parts with some sunshine.





A wet getaway

24 07 2015

As many of us plan to head off on holiday, heavy rain and strengthening winds cross southern England today (Friday), persisting overnight in the east, before clearing on Saturday morning.

A Yellow warning has been issued for southeast England and East Anglia, valid from Friday afternoon to 11am Saturday because of the potential impacts the heavy rain and wind could have.

 

Weather warning 24.07.15

As an area of low pressure is crossing northeastwards across the UK today (Friday), close to southern England, it deepens into quite an intense feature for this time of year and is expected to bring disruptive rain and wind, particularly within the warning area.

More than 30 mm of rain is expected quite widely, but there is a chance some isolated locations could well see more than 70 mm of rain. Wind gusts are also expected to be strong across the warning area, with northerly winds gusting to 45 mph inland and around 55 mph along coasts. This combination of factors could bring the risk of disruption to outdoor activities and heavy holiday traffic.
Highways England has launched a website especially for drivers heading to the South West of England to help plan their journey.





One year on – A look back to last winter

17 02 2015

This weekend marked the one-year anniversary of the Valentine’s Day storm, which also marked the end of a particularly stormy three-month period. A new review article – ‘From months to minutes – exploring the value of high-resolution rainfall observation and prediction during the UK winter storms of 2013/2014’ – written by 16 Met Office co-authors reviews the accuracy of our forecasting and warning of severe weather during winter 2013-14, and assesses its performance.

The paper concludes that the “prolonged period of high impact weather experienced in the United Kingdom during the winter of 2013/14 was very well forecast by the operational tools available across space and time scales.”

Here Huw Lewis, the paper’s lead author, and Derrick Ryall, Head of the Public Weather Service, look at the extreme weather last year and the role of the Met Office in communicating severe weather through the National Severe Weather Warning Service.

Analysis chart 1200 GMT 26 January 2014

Analysis chart 1200 GMT 26 January 2014

Winter 2013/2014 in the United Kingdom was remarkable. The country was battered by at least 12 major winter storms over a three month period and was officially assessed as the stormiest period that the United Kingdom has experienced for at least 20 years.

The series of storms resulted in the wettest winter in almost 250 years (according to the England and Wales precipitation series from 1766), significantly wetter than the previous wettest winter in 1914/1915.

Snapshot of UK rain radar surface rainfall rate for 2200 GMT on 23 December 2013

Snapshot of UK rain radar surface rainfall rate for 2200 GMT on 23 December 2013

The extreme weather caused widespread flooding throughout Southern England and coastal damage – most notably in the South West and Norfolk coasts. The impact of the severe winter storms on individuals, businesses and the government were substantial, including several fatalities, widespread power cuts and damaged infrastructure.

Recent advances in forecasting, technology and the scientific developments in meteorology have been considerable. These developments and improvements in accuracy mean that a four-day weather forecast is as accurate as a one-day forecast was just thirty years ago. During the course of last winter, the Met Office was able to use these forecasts to warn of any severe weather well in advance. In the case of the St Jude’s Day storm at the end of October 2013 warnings went out to the Government and the public five days before the storm even existed.

rainfall

As the accuracy of weather forecasts has evolved, so has the communication of the potential impacts of severe weather. The National Severe Weather Warning Service enables more ‘weather decisions’ which in turn help to minimise the consequences of severe weather. The Met Office was at the heart of the government response to the storms, providing advice on weather impacts through the National Severe Weather Warning Service and Civil Contingency Advisors. The Met Office also worked very closely with both the national and regional media, who in turn played a key role in ensuring that the public were fully informed about the potential impacts of any up-coming weather.

In addition to the Public Weather Service, commercial partners and customers were also provided with detailed updates throughout the period in order for them to plan effectively for logistical issues. Together, these advanced warnings helped authorities, businesses and individuals to be better prepared to take mitigating actions.

Driving further improvements in accuracy and therefore reducing the lead time and increasing the detail of severe weather warnings is one of the Met Office’s key priorities . The ultimate aim is to improve the potential for users to plan preventative measures for severe weather events much further ahead. Underpinning all of these developments is a continuing programme of scientific research and access to enhanced supercomputing over the next few years.





Dual Warnings

12 11 2014

Today for the first time we have issued a new dual National Severe Weather Warning for wind and rain.

What is a Dual Warning?

A dual warning is one warning, covering one geographical area, over one period of time in the way a single warning does – but it combines two different types of severe weather. They would only be combined if they were both at the same warning level.

Any of the five types of weather warnings, Wind, Rain, Snow, Ice and Fog, can form a dual warning in any combination. So in theory Wind and Snow could be a dual warning. In practice there are certain weather types that are more likely to form a dual warning; the most likely is Wind and Rain, which is what we see today.  More information on our dual warnings can be found at the bottom of our Weather Warning page.

These new dual warnings have been developed following extensive two-way conversations with emergency responders and feedback we have recieved from the public over the past twelve months.

Until now, we would have issued multiple severe weather warnings to cover the range of warnings in place. Quite often however, situations arise where multiple impacts occur and these can now be shown on one map. This should make the information we issue easier to access.

Today’s Warning

Dual wind and rain warning

Dual wind and rain warning

The warning for wind and rain issued today covers Southwest England, Western Scotland and the Irish Sea between 07.00 and 23.45 on Thursday 13 November. A small area of low pressure will move quickly northwards throughout the day bringing a short-lived period of gales and severe gales and spells of heavy rain.

We encourage everyone to keep up to date with the latest forecasts and national severe weather warnings and to stay weather aware this winter by following the Met Office on Twitter, Facebook, Google+ and YouTube for the latest weather information. You can also sign up for severe weather alerts from us through the Twitter Alerts programme, providing critical information directly to your phone. Find out more about how to sign up for Met Office Twitter alerts.





Latest wind and rain data as ex-hurricane Bertha crosses the UK

10 08 2014

As forecast ex-hurricane Bertha is crossing the UK today (10 August 2014) bringing heavy and strong, gusty winds.

ex-hurricane Bertha crosses the UK on 10 August 2014

ex-hurricane Bertha crosses the UK on 10 August 2014

 

The heaviest rainfall overnight was recorded at Balatasound in Shetland where 48.8mm of rain was recorded as a previous low pressure system moved away from the UK, while Bute Park in Cardiff saw 40.6mm as the remnants of ex-hurricane Bertha move in from the southwest.

The highest hourly total was 18.4mm at Wisley in Surrey between 9 and 10am this morning and Coventry in the West Midlands seeing 18.2mm in the same time.

The table below shows a selection of the rainfall recorded at Met Office observing sites across the UK between 10pm on Saturday 9 August and 10am on Sunday 10 August 2014.

12hr UK RAINFALL 10pm 9 Aug to 10am 10 Aug 2014
SITE NAME AREA Rainfall (MM)
BALTASOUND SHETLAND 48.8
CARDIFF, BUTE PARK SOUTH GLAMORGAN 40.6
MILFORD HAVEN CONSERVANCY BOARD DYFED 37.0
SCOLTON COUNTRY PARK DYFED 35.4
ST ATHAN SOUTH GLAMORGAN 34.4
PERSHORE COLLEGE HEREFORD & WORCESTER 28.2
USK NO 2 MONMOUTHSHIRE 27.6
ASTWOOD BANK HEREFORD & WORCESTER 26.0
PERSHORE HEREFORD & WORCESTER 23.6
MURLOUGH DOWN 23.2
TREDEGAR, BRYN BACH PARK GWENT 22.8
KILLOWEN DOWN 22.4
WHITECHURCH DYFED 22.2
CHIVENOR DEVON 22.0
COVENTRY, COUNDON WEST MIDLANDS 21.8
WISLEY SURREY 21.2

The winds have picked up as well with a gust of 53mph being recorded at Berry Head, Devon betwen 5am and 6am this morning. The table below shows the wind speeds recorded between 1am and 10am today.

UK MAX GUST SPEED 10 AUG 1am to 10am
DATE / TIME SITE NAME AREA MAX GUST (MPH)
10/08/2014 0600 BERRY HEAD DEVON 53
10/08/2014 0300 BALTASOUND SHETLAND 52
10/08/2014 0800 SCILLY: ST MARYS AIRPORT ISLES OF SCILLY 51
10/08/2014 0900 CULDROSE CORNWALL 48
10/08/2014 0200 SELLA NESS SHETLAND 48
10/08/2014 1000 WIGHT: NEEDLES OLD BATTERY ISLE OF WIGHT 46
10/08/2014 0800 MUMBLES HEAD WEST GLAMORGAN 44
10/08/2014 0300 LERWICK SHETLAND 44
10/08/2014 0900 CAMBORNE CORNWALL 43
10/08/2014 0900 SOLENT HAMPSHIRE 41

The rain will continue to move north across the UK during the rest of today and the winds will stay strong and gusty and we encourage everyone to keep up to date with the latest forecasts and national severe weather warnings.





12 February 2014 – Storm Statistics

13 02 2014

The UK saw severe weather conditions throughout the course of Wednesday 12 February 2014 and as forecast the strongest winds hit the Welsh and Northwestern coast. Below you can see the highest gusts of wind and rainfall totals recorded at Met Office observing sites on Thursday 12 February 2014.

Maximum gust speeds:

Site Area Elevation (m) Max gust speed (mph)
ABERDARON GWYNEDD 95 108
MUMBLES HEAD WEST GLAMORGAN 43 96
WIGHT: NEEDLES OLD BATTERY ISLE OF WIGHT 80 96
LAKE VYRNWY POWYS 360 96
CAPEL CURIG NO 3 GWYNEDD 216 93
HIGH BRADFIELD SOUTH YORKSHIRE 395 92
PEMBREY SANDS DYFED 3 89
ABERPORTH DYFED 133 87
LOFTUS CLEVELAND 158 85
BERRY HEAD DEVON 58 85

Rainfall totals:

Site Area Rainfall (mm)
SHAP CUMBRIA 46
BAINBRIDGE NORTH YORKSHIRE 41
BALLYPATRICK FOREST ANTRIM 39
CAPEL CURIG NO 3 GWYNEDD 37.4
BANAGHER, CAUGH HILL LONDONDERRY 35.8
BALA GWYNEDD 32.8
ALTNAHINCH FILTERS ANTRIM 32.4
KESWICK CUMBRIA 29.6
PATELEY BRIDGE, RAVENS NEST NORTH YORKSHIRE 27.4
TREDEGAR, BRYN BACH PARK GWENT 26.8

The unsettled weather will continue over the next 48 hours with a system bringing heavy rain on Friday 14 February, however the latter part of the weekend should bring drier and brighter weather for many. Everyone is advised to stay up to date with the latest Met Office forecasts and National Severe Weather Warnings and find out what to do in severe weather.





Wind and rainfall data 29 to 30 December 2013

30 12 2013

As forecast gales and heavy rain are again affecting the UK. Below you can see the highest gusts of wind and rainfal totals recorded at Met Office observing sites from 6pm 29 December and 8am 30 December.

Maximum gust speeds:

Site Area Elevation (m) Max gust speed (mph)
CAPEL CURIG     GWYNEDD          216 77
BERRY HEAD                      DEVON            58 75
SCILLY: ST MARYS AIRPORT        ISLES OF SCILLY  31 71
PLYMOUTH, MOUNTBATTEN           DEVON            50 71
WIGHT: NEEDLES OLD BATTERY      ISLE OF WIGHT    80 70
CULDROSE                        CORNWALL         76 66
MILFORD HAVEN DYFED            44 61
NORTH WYKE                      DEVON            177 61
EDINBURGH, BLACKFORD HILL       MIDLOTHIAN       134 60
CARDINHAM, BODMIN               CORNWALL         200 59

Rainfall totals:

Site Area Rainfall (mm)
MURLOUGH                        DOWN               54.4
THREAVE                         KIRKCUDBRIGHTSHIRE 52.2
WHITECHURCH                     DYFED              47.4
ESKDALEMUIR                     DUMFRIESSHIRE      42.4
KESWICK                         CUMBRIA            41.8
DUNDRENNAN                      KIRKCUDBRIGHTSHIRE 41.4
GLASGOW, BISHOPTON              RENFREWSHIRE       40.4
TREDEGAR, BRYN BACH PARK  GWENT              37.2
ST BEES HEAD        CUMBRIA            36.4
BLENCATHRA                      CUMBRIA            35

The unsettled weather will continue through the rest of the week and everyone is advised to stay up to date with the latest Met Office forecasts and National Severe Weather Warnings and find out what to do in severe weather.








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