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• volcanicash-nephanalysis-1431424933issue.pdf

  Volcanic Ash – T+0 annotated satellite image Issued 1000 UTC on Tue 12 May 2015 HIGH CONFIDENCE- - -Pilot report of ASH at N62 W15 at FL300 at 14/0930Z. -ASH detected from Katla by radar to FL490. HIGH CONFIDENCE- HIGH CONFIDENCE- -Bright returns on satellite imagery are meteorological cloud and NOT ASH. © Crown copyright Met Office

• volcanicash-nephanalysis-1599820070issue.pdf

  EXERCISE EXERCISE EXERCISE VOLCICE Volcanic Ash T+0 annotated satellite image Issued 1000 UTC on Fri 11 Sep 2020 HIGH CONFIDENCE ✁ IMO ground-based radar measures VA plume 16-18km. HIGH CONFIDENCE ✂ VA plume top faintly discernible above meterological cloud. © Crown copyright Met Office

• Microsoft PowerPoint - VOLCANIC ASH - NEPHANALYSIS.PPT

  Volcanic Ash – T+0 annotated satellite image Issued 0315 UTC on Fri 29 Aug 2014 HIGH CONFIDENCE- -Red colour at tip of arrow is meteorological cloud and not VA. -No ash detected by Radar. -No ash detected on geostationary or polar orbiting satellite images. -No lightning detected by Met Office ATDNet, implying no eruptive plume. © Crown copyright Met Office

• volcanicash-nephanalysis-1553270491issue.pdf

  Volcanic Ash – 1530 UTC annotated satellite image Issued 1600 UTC on Friday 22 March 2019 HIGH CONFIDENCE- Clear VA signal 22/1530 UTC to FL460 in mobile LIDAR LOW CONFIDENCE- Skies covered with low-level meteorological cloud in vicinity of summit, affording poor view of discernible ash. © Crown copyright Met Office

• volcanicash-nephanalysis-1526651304issue.pdf

  Volcanic Ash – T+0 annotated satellite image Issued 1345 UTC on Fri 18 May 2018 LOW CONFIDENCE- PIREP reports sighting of VA here, further north than expectations, and none visible in satellite imagery HIGH CONFIDENCE- Large gaps in cloud means VA is clearly visible in satellite imagery © Crown copyright Met Office

• volcanicash-nephanalysis-1515502868issue.pdf

  Volcanic Ash – T+0 annotated satellite image Issued 1230 UTC on Tue 09 Jan 2018 EXERCISE VOLCICE LOW CONFIDENCE- VA suggested by model winds and plume forecast. Radar indicates plume at 24km. However currently not visible due to frontal cloud, and ice on webcams, hence low confidence EXERCISE VOLCICE © Crown copyright Met Office

• volcanicash-nephanalysis-1534509068issue.pdf

  Volcanic Ash – T+0 annotated satellite image Issued 1230 UTC on Fri 17 Aug 2018 LOW CONFIDENCE- Skies covered with low-level meteorological cloud in vicinity of Bardarbunga, affording poor view of discernible ash. LOW CONFIDENCE- PIREP reported VA at FL100 at 17/1200 UTC. Ash not discernible on imagery. © Crown copyright Met Office

• 4_pilots_weather_brief_template.pdf

  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 Afternoon: Wind Weather Temperature Evening: Wind Weather Temperature

• volcanicash-nephanalysis-1447171389issue.pdf

  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

• volcanicash-nephanalysis-1494334868issue.pdf

  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