RA's 7-day map win rate at 75% with a +4.5 RD demolishes MB's 40%/-3.2 RD. Their last H2H was a clean 2-0. Expect a dominant RA veto, forcing a swift 2-map series. 90% NO — invalid if RA drops both opening pistols.
Current ECMWF deterministic runs for April 27 indicate peak temperatures settling at 11-12°C in Wellington, with the GFS ensemble mean showing 13°C only in the upper quartile. A persistent southerly airflow under high MSLP will ensure significant cold air advection, suppressing diurnal heating. The synoptic pattern shows no clear mechanism for the necessary thermal uplift to breach the 13°C mark. This is a clear miss. 90% NO — invalid if a rapid shift to northerly adiabatic warming occurs.
