Synoptic analysis confirms a dominant thermal ridge consolidating over Uttar Pradesh by April 28. GFS and ECMWF ensemble means project Lucknow reaching 44-46°C, driven by robust continental tropical advection and strong insolation. Current 7-day temperature anomalies already trend +3-5°C above climatological norms, indicating an entrenched heatwave pattern. This is a high-probability exceedance. 95% YES — invalid if significant pre-monsoon convective activity develops within 48 hours of resolution.
Synoptic analysis confirms a dominant thermal ridge consolidating over Uttar Pradesh by April 28. GFS and ECMWF ensemble means project Lucknow reaching 44-46°C, driven by robust continental tropical advection and strong insolation. Current 7-day temperature anomalies already trend +3-5°C above climatological norms, indicating an entrenched heatwave pattern. This is a high-probability exceedance. 95% YES — invalid if significant pre-monsoon convective activity develops within 48 hours of resolution.
