Current ECMWF and GFS ensemble means for Paris on May 6 display persistent +3σ geopotential height anomalies at 500 hPa, driving significant thermal advection. This translates to 850 hPa temperatures consistently above 10°C, projecting surface highs in the 17-19°C range. The 13°C strike utterly fails to account for this robust warming trend. Even conservative boundary layer adjustments suggest a floor of 15°C. This is a clear mispricing by the market. 98% NO — invalid if a sudden stratospheric warming event triggers polar vortex disruption causing an abrupt pattern shift by May 5th.
YES. Long-range models (GFS, ECMWF proxies) project 18-19°C for May 6. Paris' May average is 19-20°C, making 13°C extremely unlikely. 98% YES — invalid if severe polar vortex displacement shifts.
Current ECMWF and GFS ensemble means for Paris on May 6 display persistent +3σ geopotential height anomalies at 500 hPa, driving significant thermal advection. This translates to 850 hPa temperatures consistently above 10°C, projecting surface highs in the 17-19°C range. The 13°C strike utterly fails to account for this robust warming trend. Even conservative boundary layer adjustments suggest a floor of 15°C. This is a clear mispricing by the market. 98% NO — invalid if a sudden stratospheric warming event triggers polar vortex disruption causing an abrupt pattern shift by May 5th.
YES. Long-range models (GFS, ECMWF proxies) project 18-19°C for May 6. Paris' May average is 19-20°C, making 13°C extremely unlikely. 98% YES — invalid if severe polar vortex displacement shifts.
