Atmospheric hazards often pertain to local scale both because many of them occur at local scale (tornadoes, hail, lightning, ...) and because even for those events occurring at large scale (floods, heat waves, storm surges, ...) local scale characteristics or anomalies can magnify their effects, then increasing their risk (i.e., probability to affect people, property and environment).

For this reason, a suited risk management to be effective needs high resolution awareness on spatial and temporal frequency and characteristics of atmospheric hazards, then an high resolution climatology of these phenomena.

Following the "fil rouge" of 2010 edition of the EMS annual
meeting and ECAC conference, this session will encourage contributions devoted to the high resolution climatological aspects of "Atmospheric Hazards".

In detail, this session will leave room to all the work facing the climatic aspects of the following phenomena:

1) extreme cold/heat episodes;
2) freezing rain and intense snow falls;
3) severe katabatic or foehn winds;
4) gap flows;
5) fog;
6) breaking of gravity waves;
7) storm-surges and atmospheric driven marine hazards;
8) flash-floods and heavy rain events;
9) hail;
10) lightning;
11) tornadoes, waterspouts, derechos and downbursts;
12) intense Mediterranean cyclones;
13) tropical like cyclones;
14) local effects of polar lows;
15) Severe wind storms.

Particularly welcome will be those works dealing with database and data collection tools. Contributions dealing with studies of specific episodes (case studies) might find room in this session, provided that they are relevant and archetypical for the area which was affected by those events.

Local or large scale climatologies of atmospheric hazards realized through remote sensing techniques (intrinsically "high resolved", e.g, RADAR, Satellite, lightning detection network, etc.) will be particularly appreciated and fostered even if they are based on relatively short time-ranges.

The above presented description of topics is, of course, not exhaustive and the "Atmospheric Hazards Session" Conveners wait to be surprised by new ideas and points of view related to high resolution climatology and climate services sprung out from human inventive.