¥Very wide range of space and time scales
¥Language used in climate circles not very precise
–High impact (but not really extreme)
–Exceedence of a relatively low threshold (e.g., 90th percentile of daily
precipitation amounts)
–Rare events (long return period)
–Unprecedented events (in the available record)
¥Range from very small scale (tornadoes) to large scale (eg drought)