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Limitation of twice weekly updates to M-climate

M-climate is updated twice per week on Mondays per weaken Mondays and Thursdays.  So M-climate quantile plots for the for the same lead-verifying time from two forecast runs on e.g. straddling the M-climate update will be slightly different.  So, for example, the quantile plots for forecast runs on 00UTC Thursday and 00UTC Friday will not be slightly different.  This exactly the same.  However, this limitation of twice weekly updates to the M-climate can be significant.   It  It can be particularly evident in spring and autumn when mean temperatures are changing most rapidly day by day.

Different reference periods for M-Climate and ER-M-Climate

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