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Weather and Forecasting

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Editorial Type:
Corrigendum
Article Type:
Correction

CORRIGENDUM

T. P. Legg1 and K. R. Mylne1
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  • 1 Met Office, Exeter, United Kingdom
Print Publication:
01 Feb 2007
DOI:
https://doi.org/10.1175/WAF1003.1
Page(s):
216–219
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Abstract

In an earlier paper the authors described the use of ensemble information for the generation of early warnings of defined severe-weather events within the United Kingdom. A comprehensive verification of the system was also included in this study. However, an error was later found within the verification code for relative operating characteristic and reliability, which affects most of the results (though the Brier skill scores were not affected). The purpose of the present corrigendum is to provide amended verification results. Briefly, what was found before was that skill appeared to exhibit a maximum for these severe-weather events at 4 days ahead, but, although the results for day 4 remain good, the authors underestimated the skill at other days and so the 4-day skill maximum is no longer clear; instead, skill is useful at days 1–4, and tails off only slowly at days 5–6.

Corresponding author address: Timothy Legg, Met Office, FitzRoy Rd., Exeter, EX1 3PB, United Kingdom. Email: tim.legg@metoffice.goc.uk

Abstract

In an earlier paper the authors described the use of ensemble information for the generation of early warnings of defined severe-weather events within the United Kingdom. A comprehensive verification of the system was also included in this study. However, an error was later found within the verification code for relative operating characteristic and reliability, which affects most of the results (though the Brier skill scores were not affected). The purpose of the present corrigendum is to provide amended verification results. Briefly, what was found before was that skill appeared to exhibit a maximum for these severe-weather events at 4 days ahead, but, although the results for day 4 remain good, the authors underestimated the skill at other days and so the 4-day skill maximum is no longer clear; instead, skill is useful at days 1–4, and tails off only slowly at days 5–6.

Corresponding author address: Timothy Legg, Met Office, FitzRoy Rd., Exeter, EX1 3PB, United Kingdom. Email: tim.legg@metoffice.goc.uk

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