Climatological mean high for Istanbul late April is 17-18°C. A 15°C max implies significant negative anomaly or robust northerly advection. No current synoptic pattern supports sustained sub-climatology temps. Betting the mean. 85% NO — invalid if GFS/ECMWF shows consistent deep troughing.
Climatological mean high for Istanbul late April is 17-18°C. A 15°C max implies significant negative anomaly or robust northerly advection. No current synoptic pattern supports sustained sub-climatology temps. Betting the mean. 85% NO — invalid if GFS/ECMWF shows consistent deep troughing.
