Mexico City's April climatology averages 26.5°C. Current GFS/ECMWF ensemble means show daily highs consistently above 24°C. Thermal advection and UHI effect guarantee an easy breach. This 21°C threshold is a severe undershoot. 98% YES — invalid if an anomalous cold air mass arrives.
Mexico City's April climatology averages 26.5°C. Current GFS/ECMWF ensemble means show daily highs consistently above 24°C. Thermal advection and UHI effect guarantee an easy breach. This 21°C threshold is a severe undershoot. 98% YES — invalid if an anomalous cold air mass arrives.