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EXERCISE EXERCISE EXERCISE VOLCICE Volcanic Ash T+0 annotated satellite image Issued 1000 UTC on Fri 12 Jun 2020 LOW CONFIDENCE ✂ Meteorological cloud is inhibiting view of ash in satellite imagery HIGH CONFIDENCE ✁ IMO ground-based radar detected ash cloud to height of 18km © Crown copyright Met Office

Volcice Exercise – 1230 UTC annotated satellite image Issued 1230 UTC on Tue 15 Dec 2015 EXERCISE LOW CONFIDENCE- VA plume observed by C-band radar in Keflavik rising to 7km, but cloud covering the volcano LOW CONFIDENCE- Cloud to the north of the volcano is masking any ash emitted EXERCISE EXERCISE © Crown copyright Met Office

). Overleaf are a series of plots showing the Gerrity Skill Score in relation to the agreed performance measure for forecast Cloud Base and Visibility at airports in receipt of 9, 24 and 30 hr TAFs. Ronaldsway (EGNS) has now been included alongside the other ’9hr North’ airports, but it is not included

Volcanic Ash – T+0 annotated satellite image Issued 1000 UTC on Fri 14 June 2019 VOLCICE EXERCISE HIGH CONFIDENCE- IMO radar confirms ongoing eruption, although plume is overlaid with upper cloud. LOW CONFIDENCE- PIREP reported VA at FL300 at 14/0930 UTC but not discernable on imagery due to cloud cover. X VOLCICE EXERCISE © Crown copyright Met Office

. During the day a rain band pushed slowly south but for Wales, central southern and South West England it remained dry with sunny intervals and patchy cloud, the best of the sunshine was across Devon and Cornwall and parts of South Wales. It was a windy and cool day everywhere with moderate to fresh

Following a couple of days with sunny spells and showers, the showers most prevalent across Scotland and northern England, conditions are likely to turn briefly more settled on Wednesday for most, before weather fronts slowly introduce more cloud and outbreaks of rain from the Atlantic later

Areas of Expertise Cloud microphysics Fog development Analysis of observations of boundary layer meteorology Jenna's publications Current Activities Jenna is largely involved in the SOFOG3D campaign which took the form of a six-month international field campaign followed by a longer period of data

There was some sunshine on the 8th, but morning showers in the north-west. Cloud increased from the west during the course of the 9th, with rain spreading into the north by the evening. Rain over East Anglia and the south-east cleared away by lunchtime on the 10th, leaving some sunshine, but with a few

Volcanic Ash – T+3 annotated satellite image Issued 1230 UTC on Fri 14 June 2019 VOLCICE EXERCISE HIGH CONFIDENCE- IMO radar confirms ongoing eruption, although horizontal and vertical extend difficult to assess given cloud cover. X LOW CONFIDENCE- PIREP reported VA at FL180 at 14/1130 UTC but not discernable on imagery due to cloud cover. VOLCICE EXERCISE © Crown copyright Met Office

on Weather DataHub, our data API service. This product is called ‘Temperature at the surface’ and is available as part of our Map Images offering. Weather DataHub offers access to detailed and customisable weather data and has a range of flexible plans and payment tiers.  How can I access Total Cloud