• Florian Ewald: How Radar, Lidar and Solar Radiance Observations Can Help to Distinguish Different Microphysical Regimes in Ice Clouds?
• Eleni Marinou: Characterization of the clouds observed during NAWDEX with the synergistic HALO Radar-Lidar observation.
• Julien Delanoë: Observations with the RALI platform during the NAWDEX campaign.

Session 2: Process and predictability studies

• John Methven: Diabatic Influence on the Dynamics of Block Onset.
• Claudio Sanchez: Linking predictability barriers and diabatic processes.
• Oscar Martinez-Alvarado: Diabatic modification of potential temperature and potential vorticity in weather forecasts of different lead times.
• Matthias Schindler: The impact of dropsonde and extra radiosonde observations during NAWDEX and SHOUT in autumn 2016.

Wednesday 27 March 2019:

Session 3: IOP6 Stalactite Cyclone

• David Flack: Representation of the Stalactite Cyclone in LMDZ and ARPEGE-Climat.
• Jacob Maddison: Impact of operational and potential model upgrades on parameterised diabatic processes in extratropical cyclones and downstream block development.
• Nicolas Blanchard: Diabatic processes of the Stalactite cyclone: Characterization and impacts as seen in a convection-permitting simulation.
• Marie Mazoyer: Warm conveyor belts of the Stalactite Cyclone: a Lagrangian approach using a convective permitting model with sensitivity tests on microphysics parametrization.
• Meryl Wimmer: Diabatic processes in the warm conveyor belt of the Stalactite Cyclone: sensitivity to the two convective parametrization schemes in Arpege.

Session 4: IOP3 Vladiana

• Annika Oertel: Embedded convection in the WCB of “Vladiana”.

Session 5: IOP4 Karl

• Marlene Baumgart: Contributions of ex-Karl to the evolution of forecast uncertainty in the ECMWF ensemble.
• Kevin Wolf: Comparison of measured and simulated broadband and spectral irradiances during IOP 'Karl'.
• Christian Euler: Lagrangian Description of Air Masses Associated with Latent Heat Release in Tropical Storm Karl (2016) during Extratropical Transition.

Session 6: IOP8 TPV

• Matthias Rothlisberger: First aircraft based observations of a North Atlantic tropopause polar vortex and its representation in the ECMWF analysis and ensemble forecasts.

Session 7: IOP10 Thor

• Daniel Steinfeld: The sensitivity of block "Thor" to changes in upstream latent heating in numerical experiments.

Session 8: IOP9 Sanchez

• Hanin Binder: Cut-off Sanchez and its downstream impact over southern France – verification of probabilistic Météo-France forecasts

Thursday 28 March 2019:

Session 9: Model biases

• Andreas Schafler: Observation of jet stream winds during NAWDEX and systematic meteorological analysis errors.
• Ben Harvey: Identification of low static stability layers from radiosonde profiles.
• Jake Bland: Model humidity biases during the NAWDEX campaign from radiosondes.
• Gwendal Rivière: Systematic comparison between RALI observations and Arpege ensemble forecasts along the flights of the SAFIRE Falcon.

Session 10: Final discussion

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