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and so the wind speed within the cloud. Figure 11 Wind profile generated by the Cobbacombe Cross Doppler radar data Dual Polarisation Figure 12 Schematic of dual polarisation measurement A dual polarisation radar can retrieve more information about the nature of the target being observed. It does

Volcanic Ash – T+0 annotated satellite image Issued 1015 UTC on Fri 18 May 2018 LOW CONFIDENCE- Areas of cloud may soon obscure forward edge of plume HIGH CONFIDENCE- Large gaps in cloud means VA is clearly visible in satellite imagery © 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

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

Volcanic Ash – T+0 annotated satellite image Issued 1550 UTC on Fri 19 Oct 2018 VOLCICE EXERCISE LOW CONFIDENCE- Meterological cloud in vicinity of Kverkfjoll partially obscuring view of ash cloud. LOW CONFIDENCE- PIREP reported VA at FL180 at 19/1530 UTC. Ash not discernible on imagery. VOLCICE EXERCISE © Crown copyright Met Office

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

. 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

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

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