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Volcanic Ash – T+0 annotated satellite image Issued 0930 UTC on Sunday 31st Aug 2014 HIGH CONFIDENCE- -No ash detected by Radar or by field scientists in the vicinity. No explosions reported. -No lightning detected by Met Office ATDNet, implying no eruptive plume. -Ash is currently not discernable on geostationary or polar orbiting satellite images due to frontal cloud. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1400 UTC on Tue 19 Nov 2013 EXERCISE KRAFLA eruption theoretical example HIGH VA visible on imagery MEDIUM VA partly obscured by high level cloud LOW VA reported from AIRREP at 1000UTC but little evidence on imagery and forecast trajectories show unlikely © Crown copyright Met Office

Volcanic Ash – 1530 UTC annotated satellite image Issued 1600 UTC on Tue 10 Nov 2010 EXERCISE HIGH CONFIDENCE- Well defined ash in satellite imagery. LOW CONFIDENCE- PIREP report of VA at FL380. Position obscured by upper cloud HIGH CONFIDENCE- VA plume observed by mobile radar rising to FL590 EXERCISE EXERCISE © Crown copyright Met Office

1900 UTC Jan 26 2016 annotated satellite image Issued 1915 UTC on Tuesday 26 Jan 2016 EXERCISE LOW CONFIDENCE- Pirep reports an area of ash to west of Katla but cloud cover in the area means we are unable to verify. HIGH CONFIDENCE- Ash plume clearly discernible in imagery extending northeast of Katla. EXERCISE EXERCISE © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1200 UTC on Tue 09 May 2017 HIGH CONFIDENCE- Clear VA signal in IMO Mobile LIDAR HIGH CONFIDENCE- Clear VA signal in RGB Satellite image with limited amounts of meteorological cloud to obscure. HIGH CONFIDENCE- MOCCA report VA at FL200 across Wales. © Crown copyright Met Office

Volcanic Ash – 1315 UTC annotated satellite image Issued 1330 UTC on Tue 13 Dec 2016 LOW CONFIDENCE- Eruption site and downwind plume obscured by thick meteorological cloud layers. Further, due to very bad weather conditions the data from the radar is not very clear. IMO estimate the plume height to still be around 12KM. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issue 0730 UTC on Sun 17 Aug 2014 TEST TEST TEST HIGH CONFIDENCE TEST IMO radar reports VA FL300-FL370 LOW CONFIDENCE TEST PIREP of VA at FL280 but not discernable on imagery due to cloud obscuration HIGH CONFIDENCE TEST VA discernable on satellite imagery © Crown copyright Met Office

Volcanic Ash – 1030 UTC annotated satellite image Issued 1030 UTC on Tue 14 Mar 2017 LOW CONFIDENCE- Eruption site and plume obscured by dense layers of meteorological cloud. HIGH CONFIDENCE- IMO reports discernible volcanic ash from Katla at 08:30UTC. The plume has been seen from fixed radar rising to 18km +/- 0.8km. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1030 UTC on Tue 09 Jan 2018 EXERCISE VOLCICE LOW CONFIDENCE- VA suggested by model winds and plume, however hard to discern due to cirrus cloud HIGH CONFIDENCE- VA observed by radar to 24km near source, moving NE at 70kt. Plume visible on imagery. EXERCISE VOLCICE © Crown copyright Met Office

Festival of Flight Air Show - London Crimson Darts Weather Brief Forecaster: Saturday Summary: A band of rain moves South East across the UK. London will see thickening cloud and increasing wind throughout the day before rain arrives in the early evening. Morning: Wind Weather Temperature 15 15 Afternoon: Wind Weather Temperature 15 20 Evening: Wind Weather Temperature 18 12