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A nonanticipative analog method is used for the long-term forecast of airtemperature extremes. The data to be used for prediction include average dailyair temperature, mean visibility, mean wind speed, mean dew point, maximum andminimum temperatures reported during the day from 66 places around the world,as well as sea level, average monthly Darwin and Tahiti sea level pressures,SOI, equatorial SOI, sea surface temperature, and multivariate ENSO index.Every dataset is split into two samples - learning (1973-2010) and validation(2011-2013). Initially, the sum of variables in datasets for two locations,minus corresponding climatological values, is calculated over a summationinterval of length from 1 to 365 days. A "quality criterion" selects datasetsfor two locations with appropriate lead-time and summation interval, which havemaximum (or minimum) sum compared with the rest of data four times at least,when extreme events occur later within the learning sample. Up to 18.2% of allextremes are specifically predicted. The methodology has 100% accuracy withrespect to the sign of predicted and actual values. It is more useful thancurrent methods for predicting extreme values because it does not require theestimation of a probability distribution from scarce observations.

A Nonanticipative Analog Method for Long-Term Forecasting of Air Temperature Extremes